#!/usr/bin/env perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::kvm;
BEGIN
{
$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use lib "$::XCATROOT/lib/perl";
use xCAT::GlobalDef;
use xCAT::NodeRange;
use xCAT::VMCommon;
use xCAT_monitoring::monitorctrl;
use xCAT::Table;
use xCAT::Usage;
use XML::LibXML; #now that we are in the business of modifying xml data, need something capable of preserving more of the XML structure
#TODO: convert all uses of XML::Simple to LibXML? Using both seems wasteful in a way..
use XML::Simple qw(XMLout);
use Thread qw(yield);
use xCAT::Utils qw/genpassword/;
use File::Basename qw/fileparse/;
use File::Path qw/mkpath/;
use IO::Socket;
use IO::Select;
use xCAT::TableUtils;
use xCAT::ServiceNodeUtils;
use strict;
use feature "switch"; # For given-when block
#use warnings;
my $use_xhrm = 0; #xCAT Hypervisor Resource Manager, to satisfy networking and storage prerequisites, default to not using it for the moment
my $imgfmt = 'raw'; #use raw format by default
my $clonemethod = 'qemu-img'; #use qemu-img command
my %vm_comm_pids;
my %offlinehyps;
my %hypstats;
my %offlinevms;
my $parser;
my @destblacklist;
my $updatetable; #when a function is performing per-node operations, it can queue up a table update by populating parts of this hash
my $confdata; #a reference to serve as a common pointer betweer VMCommon functions and this plugin
my %allnodestatus;
require Sys::Virt;
if (Sys::Virt->VERSION =~ /^0\.[10]\./) {
die;
}
use XML::Simple;
$XML::Simple::PREFERRED_PARSER = 'XML::Parser';
use Data::Dumper;
use POSIX "WNOHANG";
use Storable qw(freeze thaw store_fd fd_retrieve);
use IO::Select;
use IO::Handle;
use Time::HiRes qw(gettimeofday sleep);
use xCAT::DBobjUtils;
use Getopt::Long;
use xCAT::SvrUtils;
my %runningstates;
my $vmmaxp = 64;
my $mactab;
my %usedmacs;
my $status_noop = "XXXno-opXXX";
my $callback;
my $requester; #used to track the user
sub handled_commands {
return {
rpower => 'nodehm:power,mgt',
mkvm => 'nodehm:power,mgt',
clonevm => 'nodehm:power,mgt',
chvm => 'nodehm:power,mgt',
rmvm => 'nodehm:power,mgt',
rinv => 'nodehm:power,mgt',
rmigrate => 'nodehm:mgt',
getcons => 'nodehm:mgt',
rscan => 'nodehm:mgt=ipmi',
#rvitals => 'nodehm:mgt',
#rinv => 'nodehm:mgt',
getrvidparms => 'nodehm:mgt',
lsvm => ['nodehm:mgt=ipmi', 'nodehm:mgt=kvm'], #allow both hypervisor and VMs as params
rbeacon => 'nodehm:mgt',
revacuate => 'hypervisor:type',
vmstatenotify => 'hypervisor:type',
#rspreset => 'nodehm:mgt',
#rspconfig => 'nodehm:mgt',
#rbootseq => 'nodehm:mgt',
#reventlog => 'nodehm:mgt',
};
}
my $hypconn;
my $hyp;
my $doreq;
my %hyphash;
my $node;
my $vmtab;
sub get_path_for_pool {
my $poolobj = shift;
my $poolxml = $poolobj->get_xml_description();
my $pooldom = $parser->parse_string($poolxml);
my @paths = $pooldom->findnodes("/pool/target/path/text()");
if (scalar @paths != 1) {
return undef;
}
return $paths[0]->data;
}
sub build_pool_xml {
my $url = shift;
my $pooldesc;
my $name = $url;
$name =~ s!nfs://!nfs_!;
$name =~ s!dir://!dir_!;
$name =~ s!lvm://!lvm_!;
$name =~ s/\//_/g; #though libvirt considers / kosher, sometimes it wants to create a local xml file using name for filename...
if ($url =~ /^dir:/) { #directory style..
my $path = $url;
$path =~ s/dir:\/\///g;
return "<pool type=\"dir\"><name>$name</name><target><path>$path</path></target></pool>";
} elsif ($url =~ /^lvm:\/\//) { #lvm specified
my $path = $url;
$path =~ s/^lvm:\/\///;
$path =~ s/:(.*)\z//;
my $volumes = $1;
my $mount = "/dev/$path";
my $xml = '<pool type="logical"><name>' . $path . '</name><target><path>' . $mount . '</path></target>';
if ($volumes) {
$xml .= "<source>";
my @vols = split /,/, $volumes;
foreach (@vols) {
$xml .= '<device path="' . $_ . '"/>';
}
$xml .= "</source>";
}
$xml .= "</pool>";
return $xml;
}
my $mounthost = shift;
unless ($mounthost) { $mounthost = $hyp; }
my $pool;
my $host = $url;
$host =~ s/.*:\/\///;
$host =~ s/(\/.*)//;
my $srcpath = $1;
my $uuid = xCAT::Utils::genUUID(url => $url);
#first, we make a pool desc that won't have slashes in them
$pooldesc = '<pool type="netfs">';
$pooldesc .= '<name>' . $name . '</name>';
$pooldesc .= '<uuid>' . $uuid . '</uuid>>';
$pooldesc .= '<source>';
$pooldesc .= '<host name="' . $host . '"/>';
$pooldesc .= '<dir path="' . $srcpath . '"/>';
$pooldesc .= '</source>';
$pooldesc .= '<target><path>/var/lib/xcat/pools/' . $uuid . '</path></target></pool>';
#turns out we can 'define', then 'build', then 'create' on the poolobj instead of 'create', to get mkdir -p like function
#system("ssh $mounthost mkdir -p /var/lib/xcat/pools/$uuid"); #ok, so not *technically* just building XML, but here is the cheapest
#place to know uuid... And yes, we must be allowed to ssh in
#libvirt just isn't capable enough for this sort of usage
return $pooldesc;
}
sub get_storage_pool_by_url {
my $url = shift;
my $virtconn = shift;
my $mounthost = shift;
unless ($virtconn) { $virtconn = $hypconn; }
my @currpools = $virtconn->list_storage_pools();
push @currpools, $virtconn->list_defined_storage_pools();
my $poolobj;
my $pool;
my $islvm = 0;
foreach my $poolo (@currpools) {
$poolobj = $poolo;
$pool = $parser->parse_string($poolobj->get_xml_description()); #XMLin($poolobj->get_xml_description());
if ($url =~ /^nfs:\/\/([^\/]*)(\/.*)$/) { #check the essence of the pool rather than the name
my $host = $1;
my $path = $2;
unless ($pool->findnodes("/pool")->[0]->getAttribute("type") eq "netfs") {
$pool = undef;
next;
}
#ok, it is netfs, now check source..
my $checkhost = $pool->findnodes("/pool/source/host")->[0]->getAttribute("name");
my $checkpath = $pool->findnodes("/pool/source/dir")->[0]->getAttribute("path");
if ($checkhost eq $host and $checkpath eq $path) { #TODO: check name resolution to see if they match really even if not strictly the same
last;
}
} elsif ($url =~ /^dir:\/\/(.*)\z/) { #a directory, simple enough
my $path = $1;
unless ($path =~ /^\//) {
$path = '/' . $path;
}
$path =~ s/\/\z//; #delete trailing / if table specifies, a perfectly understable 'mistake'
my $checkpath = $pool->findnodes("/pool/target/path/text()")->[0]->data;
if ($checkpath eq $path) {
last;
}
} elsif ($url =~ /^lvm:\/\/([^:]*)/) { #lvm volume group....
my $vgname = $1;
my $checkname = $pool->findnodes("/pool/name/text()")->[0]->data;
if ($checkname eq $vgname) {
$islvm = 1;
last;
}
} elsif ($pool->findnodes('/pool/name/text()')->[0]->data eq $url) { #$pool->{name} eq $url) {
last;
}
$pool = undef;
}
if ($pool) {
my $inf = $poolobj->get_info();
if ($inf->{state} == 0) { #Sys::Virt::StoragePool::STATE_INACTIVE) { #if pool is currently inactive, bring it up
unless ($islvm) { $poolobj->build(); } #if lvm and defined, it's almost certainly been built
$poolobj->create();
}
eval { #we *try* to do this, but various things may interfere.
#this is basically to make sure the list of contents is up to date
$poolobj->refresh();
};
return $poolobj;
}
$poolobj = $virtconn->define_storage_pool(build_pool_xml($url, $mounthost));
eval { $poolobj->build(); };
if ($@) {
my $error = $@;
# Some errors from building storage pool object are safe to ignore.
# For example, "File exists" is returned when a directory location for storage pool is already there.
# The storage pool still gets built, and the next statement to create storage pool will work.
unless ($error =~ /vgcreate.*exit status 3/ or $error =~ /pvcreate.*exit status 5/ or $error =~ /File exists/) {
die $@;
}
}
$poolobj->create();
eval { #wrap in eval, not likely to fail here, but calling it at all may be superfluous anyway
$poolobj->refresh();
};
return $poolobj;
}
sub get_multiple_paths_by_url {
my %args = @_;
my $url = $args{url};
my $node = $args{node};
my $poolobj = get_storage_pool_by_url($url);
unless ($poolobj) { die "Cound not get storage pool for $url"; }
eval { #refresh() can 'die' if cloning in progress, accept stale data then
$poolobj->refresh(); #if volumes change on nfs storage, libvirt is too dumb to notice
};
my @volobjs = $poolobj->list_volumes();
my %paths;
foreach (@volobjs) {
if ($_->get_name() =~ /^$node\.([^\.]*)\.([^\.]*)$/) {
$paths{ $_->get_path() } = { device => $1, format => $2 };
} elsif ($_->get_name() =~ /^$node\.([^\.]*)$/) {
$paths{ $_->get_path() } = { device => $1, format => 'raw' };
#this requires any current user of qcow2 to migrate, unfortunate to escape
#a vulnerability where raw user could write malicious qcow2 to header
#and use that to get at files on the hypervisor os with escalated privilege
}
}
return \%paths;
}
sub get_filepath_by_url { #at the end of the day, the libvirt storage api gives the following capability:
#mount, limited ls, and qemu-img
#it does not frontend mkdir, and does not abstract away any nitty-gritty detail, you must know:
#the real mountpoint, and the real full path to storage
#in addition to this, subdirectories are not allowed, and certain extra metadata must be created
#not a big fan compared to ssh and run the commands myself, but it's the most straightforward path
#to avoid ssh for users who dislike that style access
my %args = @_;
my $url = $args{url};
my $dev = $args{dev};
my $create = $args{create};
my $force = $args{force};
my $format = $args{format};
my $sparse = 1;
if ($url =~ /^lvm:/) {
$sparse = 0;
$format = 'raw';
}
unless ($format) {
$format = 'qcow2';
}
#print "url=$url, dev=$dev,create=$create, force=$force, format=$format\n";
#ok, now that we have the pool, we need the storage volume from the pool for the node/dev
my $poolobj = get_storage_pool_by_url($url);
unless ($poolobj) { die "Could not get storage pool for $url"; }
eval { #make a refresh attempt non-fatal to fail, since cloning can block it
$poolobj->refresh(); #if volumes change on nfs storage, libvirt is too dumb to notice
};
my @volobjs = $poolobj->list_volumes();
my $desiredname = $node . '.' . $dev . '.' . $format;
#print "desiredname=$desiredname, volobjs=@volobjs\n";
foreach (@volobjs) {
if ($_->get_name() eq $desiredname) {
if ($create) {
if ($force) { #must destroy the storage
$_->delete();
} else {
die "Path $desiredname already exists";
}
} else {
return $_->get_path();
}
}
}
if ($create) {
if ($create =~ /^clone=(.*)$/) {
my $src = $1;
my $fmt = 'raw';
if ($src =~ /\.qcow2$/) {
$fmt = 'qcow2';
}
my $vol = $poolobj->create_volume("<volume><name>" . $desiredname . "</name><target><format type='$format'/></target><capacity>100</capacity><backingStore><path>$src</path><format type='$fmt'/></backingStore></volume>");
#ok, this is simply hinting, not the real deal, so to speak
# 1) sys::virt complains if capacity isn't defined. We say '100', knowing full well it will be promptly ignored down the code. This is aggravating
# and warrants recheck with the RHEL6 stack
# 2) create_volume with backingStore is how we do the clone from master (i.e. a thin clone, a la qemu-img create)
# note how backing store is full path, allowing cross-pool clones
# 3) clone_volume is the way to invoke qemu-img convert (i.e. to 'promote' and flatten a vm image to a standalone duplicate volume
# incidentally, promote to master will be relatively expensive compared to the converse operation, as expected
# will have to verify as it is investigated whether this can successfully cross pools (hope so)
# 4) qemu-img was so much more transparent and easy to figure out than this
# additionally, when mastering a powered down node, we should rebase the node to be a cow clone of the master it just spawned
} else {
my $vol;
unless ($sparse) { #skip allocation specification for now
#currently, LV can have reduced allocation, but *cannot* grow.....
$vol = $poolobj->create_volume("<volume><name>" . $desiredname . "</name><target><format type='$format'/></target><capacity>" . getUnits($create, "G", 1) . "</capacity></volume>");
} else {
$vol = $poolobj->create_volume("<volume><name>" . $desiredname . "</name><target><format type='$format'/></target><capacity>" . getUnits($create, "G", 1) . "</capacity><allocation>0</allocation></volume>");
}
if ($vol) { return $vol->get_path(); }
}
} else {
return undef;
}
}
sub nodesockopen {
my $node = shift;
my $port = shift;
unless ($node) { return 0; }
my $socket;
my $addr = gethostbyname($node);
if (!$addr) {
xCAT::SvrUtils::sendmsg([ 1, "Cannot not resolve host $node" ], $callback);
return 0;
}
my $sin = sockaddr_in($port, $addr);
my $proto = getprotobyname('tcp');
socket($socket, PF_INET, SOCK_STREAM, $proto) || return 0;
connect($socket, $sin) || return 0;
return 1;
}
sub waitforack {
my $sock = shift;
my $select = new IO::Select;
$select->add($sock);
my $str;
if ($select->can_read(60)) { # Continue after 10 seconds, even if not acked...
if ($str = <$sock>) {
} else {
$select->remove($sock); #Block until parent acks data
}
}
}
sub reconfigvm {
$node = shift;
my $xml = shift;
my $domdesc = $parser->parse_string($xml);
my @bootdevs = $domdesc->findnodes("/domain/os/boot");
my $curroffset = $domdesc->findnodes("/domain/clock")->[0]->getAttribute("offset");
my $newoffset;
my $needfixin = 0;
if (defined($confdata->{vm}->{$node}->[0]->{clockoffset})) {
#If user requested a specific behavior, give it
$newoffset = $confdata->{vm}->{$node}->[0]->{clockoffset};
} else {
#Otherwise, only do local time for things that look MS
if (defined($confdata->{nodetype}->{$node}->[0]->{os}) and $confdata->{nodetype}->{$node}->[0]->{os} =~ /win.*/) {
$newoffset = 'localtime';
} else { #For everyone else, utc is preferred generally
$newoffset = 'utc';
}
}
if ($curroffset ne $newoffset) {
$needfixin = 1;
$domdesc->findnodes("/domain/clock")->[0]->setAttribute("offset", $newoffset);
}
my @oldbootdevs;
if (defined $confdata->{vm}->{$node}->[0]->{memory}) {
$needfixin = 1;
$domdesc->findnodes("/domain/memory/text()")->[0]->setData(getUnits($confdata->{vm}->{$node}->[0]->{memory}, "M", 1024));
foreach ($domdesc->findnodes("/domain/currentMemory/text()")) {
$_->setData(getUnits($confdata->{vm}->{$node}->[0]->{memory}, "M", 1024));
}
}
if (defined $confdata->{vm}->{$node}->[0]->{vcpus}) {
$needfixin = 1;
$domdesc->findnodes("/domain/vcpu/text()")->[0]->setData($confdata->{vm}->{$node}->[0]->{vcpus});
}
if (defined $confdata->{vm}->{$node}->[0]->{bootorder}) {
my @expectedorder = split(/[:,]/, $confdata->{vm}->{$node}->[0]->{bootorder});
foreach (@expectedorder) { #this loop will check for changes and fix 'n' and 'net'
my $currdev = shift @bootdevs;
if ("net" eq $_ or "n" eq $_) {
$_ = "network";
}
unless ($currdev and $currdev->getAttribute("dev") eq $_) {
$needfixin = 1;
}
if ($currdev) {
push @oldbootdevs, $currdev;
}
}
if (scalar(@bootdevs)) {
$needfixin = 1;
push @oldbootdevs, @bootdevs;
}
unless ($needfixin) { return 0; }
#ok, we need to remove all 'boot' nodes from current xml, and put in new ones in the order we like
foreach (@oldbootdevs) {
$_->parentNode->removeChild($_);
}
#now to add what we want...
my $osnode = $domdesc->findnodes("/domain/os")->[0];
foreach (@expectedorder) {
my $fragment = $parser->parse_balanced_chunk('<boot dev="' . $_ . '"/>');
$osnode->appendChild($fragment);
}
}
if ($needfixin) {
return $domdesc->toString();
} else { return 0; }
}
sub build_oshash {
my %rethash;
$rethash{type}->{content} = 'hvm';
my $hypcpumodel = $confdata->{ $confdata->{vm}->{$node}->[0]->{host} }->{cpumodel};
unless (defined($hypcpumodel) and $hypcpumodel eq "ppc64le") {
$rethash{bios}->{useserial} = 'yes';
}
if (defined $confdata->{vm}->{$node}->[0]->{bootorder}) {
my $bootorder = $confdata->{vm}->{$node}->[0]->{bootorder};
my @bootdevs = split(/[:,]/, $bootorder);
my $bootnum = 0;
foreach (@bootdevs) {
if ("net" eq $_ or "n" eq $_) {
$rethash{boot}->[$bootnum]->{dev} = "network";
} else {
$rethash{boot}->[$bootnum]->{dev} = $_;
}
$bootnum++;
}
} else {
$rethash{boot}->[0]->{dev} = 'network';
$rethash{boot}->[1]->{dev} = 'hd';
}
return \%rethash;
}
sub build_diskstruct {
print "build_diskstruct called\n";
my $cdloc = shift;
my @returns = ();
my $currdev;
my @suffixes = ('a', 'b', 'd' .. 'zzz');
my $suffidx = 0;
my $storagemodel = $confdata->{vm}->{$node}->[0]->{storagemodel};
my $cachemethod = "none";
if ($confdata->{vm}->{$node}->[0]->{storagecache}) {
$cachemethod = $confdata->{vm}->{$node}->[0]->{storagecache};
}
if (defined $confdata->{vm}->{$node}->[0]->{storage}) {
my $disklocs = $confdata->{vm}->{$node}->[0]->{storage};
my @locations = split /\|/, $disklocs;
foreach my $disk (@locations) {
#Setting default values of a virtual disk backed by a file at hd*.
my $diskhash;
$disk =~ s/=(.*)//;
my $model = $1;
unless ($model) {
#if not defined, model will stay undefined like above
$model = $storagemodel;
unless ($model) { $model = 'ide'; } #if still not defined, ide
}
my $prefix = 'hd';
if ($model eq 'virtio') {
$prefix = 'vd';
} elsif ($model eq 'scsi') {
$prefix = 'sd';
}
$diskhash->{type} = 'file';
$diskhash->{device} = 'disk';
$diskhash->{target}->{dev} = $prefix . $suffixes[$suffidx];
$diskhash->{target}->{bus} = $model;
my @disk_parts = split(/,/, $disk);
#Find host file and determine if it is a file or a block device.
if (substr($disk_parts[0], 0, 4) eq 'phy:') {
$diskhash->{type} = 'block';
$diskhash->{source}->{dev} = substr($disk_parts[0], 4);
} elsif ($disk_parts[0] =~ m/^nfs:\/\/(.*)$/ or $disk_parts[0] =~ m/^dir:\/\/(.*)$/ or $disk_parts[0] =~ m/^lvm:\/\/(.*)$/) {
my %disks = %{ get_multiple_paths_by_url(url => $disk_parts[0], node => $node) };
unless (keys %disks) {
return (1, "Unable to find any persistent disks at $disk_parts[0] for $node");
}
foreach (keys %disks) {
my $tdiskhash;
$tdiskhash->{type};
$tdiskhash->{device} = 'disk';
$tdiskhash->{driver}->{name} = 'qemu';
$tdiskhash->{driver}->{type} = $disks{$_}->{format};
$tdiskhash->{driver}->{cache} = $cachemethod;
$tdiskhash->{source}->{file} = $_;
$tdiskhash->{target}->{dev} = $disks{$_}->{device};
if ($disks{$_} =~ /^vd/) {
$tdiskhash->{target}->{bus} = 'virtio';
} elsif ($disks{$_} =~ /^hd/) {
$tdiskhash->{target}->{bus} = 'ide';
} elsif ($disks{$_} =~ /^sd/) {
$tdiskhash->{target}->{bus} = 'scsi';
}
push @returns, $tdiskhash;
}
next; #nfs:// skips the other stuff
#$diskhash->{source}->{file} = get_filepath_by_url(url=>$disk_parts[0],dev=>$diskhash->{target}->{dev}); #"/var/lib/xcat/vmnt/nfs_".$1."/$node/".$diskhash->{target}->{dev};
} else { #currently, this would be a bare file to slap in as a disk
$diskhash->{source}->{file} = $disk_parts[0];
}
#See if there are any other options. If not, increment suffidx because the already determined device node was used.
#evidently, we support specificying explicitly how to target the system..
if (@disk_parts gt 1) {
my @disk_opts = split(/:/, $disk_parts[1]);
if ($disk_opts[0] ne '') {
$diskhash->{target}->{dev} = $disk_opts[0];
} else {
$suffidx++;
}
if ($disk_opts[1] eq 'cdrom') {
$diskhash->{device} = 'cdrom';
}
} else {
$suffidx++;
}
push @returns, $diskhash;
}
}
my $cdprefix = 'hd';
# Normally for vmstoragemodel=virtio, we would set prefix of "vd", but device name vd*
# doesn't work for CDROM, so for now use the same prefix "sd" as for vmstoragemodel=scsi.
if ($storagemodel eq 'virtio') {
$cdprefix='sd';
} elsif ($storagemodel eq 'scsi') {
$cdprefix = 'sd';
}
$suffidx += 1;
if ($cdloc) {
my $cdhash;
$cdhash->{device} = 'cdrom';
if ($cdloc =~ /^\/dev/) {
$cdhash->{type} = 'block';
} else {
$cdhash->{type} = 'file';
}
$cdhash->{source}->{file} = $cdloc;
$cdhash->{readonly};
$cdhash->{target}->{dev} = $cdprefix . $suffixes[$suffidx];
push @returns, $cdhash;
} else { #give the VM an empty optical drive, to allow chvm live attach/remove
my $cdhash;
$cdhash->{device} = 'cdrom';
$cdhash->{type} = 'file';
$cdhash->{readonly};
$cdhash->{target}->{dev} = $cdprefix . $suffixes[$suffidx];
push @returns, $cdhash;
}
return \@returns;
}
sub getNodeUUID {
my $node = shift;
my $uuid;
if ($confdata->{vpd}->{$node}->[0] and $confdata->{vpd}->{$node}->[0]->{uuid}) {
$uuid = $confdata->{vpd}->{$node}->[0]->{uuid};
$uuid =~ s/^(..)(..)(..)(..)-(..)(..)-(..)(..)/$4$3$2$1-$6$5-$8$7/;
return $uuid;
}
if ($confdata->{mac}->{$node}->[0]->{mac}) { #a uuidv1 is possible, generate that for absolute uniqueness guarantee
my $mac = $confdata->{mac}->{$node}->[0]->{mac};
$mac =~ s/\|.*//;
$mac =~ s/!.*//;
$updatetable->{vpd}->{$node} = { uuid => xCAT::Utils::genUUID(mac => $mac) };
} else {
$updatetable->{vpd}->{$node} = { uuid => xCAT::Utils::genUUID() };
}
$uuid = $updatetable->{vpd}->{$node}->{uuid};
$uuid =~ s/^(..)(..)(..)(..)-(..)(..)-(..)(..)/$4$3$2$1-$6$5-$8$7/;
return $uuid;
}
sub build_nicstruct {
my $rethash;
my $node = shift;
my @nics = ();
if ($confdata->{vm}->{$node}->[0]->{nics}) {
@nics = split /,/, $confdata->{vm}->{$node}->[0]->{nics};
}
my @macs = xCAT::VMCommon::getMacAddresses($confdata, $node, scalar @nics);
my @rethashes;
foreach (@macs) {
my $rethash;
my $nic = shift @nics;
my $type = 'virtio'; #better default fake nic than rtl8139, relevant to most
unless ($nic) {
last; #Don't want to have multiple vnics tied to the same switch
}
$nic =~ s/.*://; #the detail of how the bridge was built is of no
#interest to this segment of code
if ($confdata->{vm}->{$node}->[0]->{nicmodel}) {
$type = $confdata->{vm}->{$node}->[0]->{nicmodel};
}
if ($nic =~ /=/) {
($nic, $type) = split /=/, $nic, 2;
}
$rethash->{type} = 'bridge';
$rethash->{mac}->{address} = $_;
$rethash->{source}->{bridge} = $nic;
$rethash->{model}->{type} = $type;
push @rethashes, $rethash;
}
return \@rethashes;
}
sub getUnits {
my $amount = shift;
my $defunit = shift;
my $divisor = shift;
unless ($divisor) {
$divisor = 1;
}
if ($amount =~ /(\D)$/) { #If unitless, add unit
$defunit = $1;
chop $amount;
}
if ($defunit =~ /k/i) {
return $amount * 1024 / $divisor;
} elsif ($defunit =~ /m/i) {
return $amount * 1048576 / $divisor;
} elsif ($defunit =~ /g/i) {
return $amount * 1073741824 / $divisor;
}
}
sub build_xmldesc {
my $node = shift;
my %args = @_;
my $cdloc = $args{cd};
my %xtree = ();
my $hypcpumodel = $confdata->{ $confdata->{vm}->{$node}->[0]->{host} }->{cpumodel};
my $hypcputype = $confdata->{ $confdata->{vm}->{$node}->[0]->{host} }->{cputype};
my $hypcputhreads = $confdata->{ $confdata->{vm}->{$node}->[0]->{host} }->{cpu_thread};
unless ($hypcputhreads) {
$hypcputhreads = "1";
}
$xtree{type} = 'kvm';
$xtree{name}->{content} = $node;
$xtree{uuid}->{content} = getNodeUUID($node);
$xtree{os} = build_oshash();
if (defined($hypcpumodel) and $hypcpumodel eq "ppc64") {
$xtree{os}->{type}->{arch} = "ppc64";
$xtree{os}->{type}->{machine} = "pseries";
delete $xtree{os}->{bios};
}
if ($args{memory}) {
$xtree{memory}->{content} = getUnits($args{memory}, "M", 1024);
if ($confdata->{vm}->{$node}->[0]->{memory}) {
$updatetable->{vm}->{$node}->{memory} = $args{memory};
}
} elsif (defined $confdata->{vm}->{$node}->[0]->{memory}) {
$xtree{memory}->{content} = getUnits($confdata->{vm}->{$node}->[0]->{memory}, "M", 1024);
} else {
$xtree{memory}->{content} = 524288;
}
my %cpupinhash;
my @passthrudevices;
my $memnumanodes;
my $advsettings = undef;
if (defined $confdata->{vm}->{$node}->[0]->{othersettings}) {
$advsettings = $confdata->{vm}->{$node}->[0]->{othersettings};
}
#parse the additional settings in attrubute vm.othersettings
#the settings are semicolon delimited, the format of each setting is:
#cpu pining: "vcpupin:<physical cpu set>"
#pci passthrough: "devpassthrough:<pci device name1>,<pci device name2>..."
#memory binding: "membind:<numa node set>"
if ($advsettings) {
my @tmp_array = split ";", $advsettings;
foreach (@tmp_array) {
if (/vcpupin:['"]?([^:'"]*)['"]?:?['"]?([^:'"]*)['"]?/) {
if ($2) {
#this is for cpu pining in the vcpu level,which is not currently supported
#reserved for future use
$cpupinhash{$1} = $2;
} else {
$cpupinhash{ALL} = $1;
}
}
if (/devpassthrough:(.*)/) {
@passthrudevices = split ",", $1;
}
if (/membind:(.*)/) {
$memnumanodes = $1;
}
}
}
#prepare the xml hash for memory binding
if (defined $memnumanodes) {
my %numatunehash;
$numatunehash{memory} = [ { nodeset => "$memnumanodes" } ];
$xtree{numatune} = \%numatunehash;
}
#prepare the xml hash for cpu pining
if (exists $cpupinhash{ALL}) {
$xtree{vcpu}->{placement} = 'static';
$xtree{vcpu}->{cpuset} = "$cpupinhash{ALL}";
$xtree{vcpu}->{cpuset} =~ s/\"\'//g;
}
#prepare the xml hash for pci passthrough
my @prdevarray;
foreach my $devname (@passthrudevices) {
#This is for SR-IOV vfio
#Change vfio format 0000:01:00.2 to pci_0000_01_00_2
if ( $devname =~ m/(\w:)+(\w)+.(\w)/ ){
$devname =~ s/[:|.]/_/g;
if ( $devname !~ /^pci_/ ) {
$devname ="pci_".$devname
}
}
my $devobj = $hypconn->get_node_device_by_name($devname);
unless ($devobj) {
return -1;
}
#get the xml description of the pci device
my $devxml = $devobj->get_xml_description();
unless ($devxml) {
return -1;
}
my $devhash = XMLin($devxml);
if (defined $devhash->{capability}->{type} and $devhash->{capability}->{type} =~ /pci/i) {
my %tmphash;
$tmphash{mode} = 'subsystem';
$tmphash{type} = $devhash->{capability}->{type};
$tmphash{managed} = "yes";
$tmphash{driver}->{name} = "vfio";
$tmphash{source}->{address}->[0] = \%{ $devhash->{'capability'}->{'iommuGroup'}->{'address'} };
push(@prdevarray, \%tmphash);
}
}
$xtree{devices}->{hostdev} = \@prdevarray;
if ($hypcpumodel eq "ppc64" or $hypcpumodel eq "ppc64le") {
my %cpuhash = ();
if ($hypcputype) {
$cpuhash{model} = $hypcputype;
}
if ($args{cpus}) {
$xtree{vcpu}->{content} = $args{cpus} * $hypcputhreads;
$cpuhash{topology}->{sockets} = 1;
$cpuhash{topology}->{cores} = $args{cpus};
$cpuhash{topology}->{threads} = $hypcputhreads;
$updatetable->{vm}->{$node}->{cpus} = $args{cpus};
} elsif (defined $confdata->{vm}->{$node}->[0]->{cpus}) {
$xtree{vcpu}->{content} = $confdata->{vm}->{$node}->[0]->{cpus} * $hypcputhreads;
$cpuhash{topology}->{sockets} = 1;
$cpuhash{topology}->{cores} = $confdata->{vm}->{$node}->[0]->{cpus};
$cpuhash{topology}->{threads} = $hypcputhreads;
} else {
$xtree{vcpu}->{content} = 1 * $hypcputhreads;
$cpuhash{topology}->{sockets} = 1;
$cpuhash{topology}->{cores} = 1;
$cpuhash{topology}->{threads} = $hypcputhreads;
}
$xtree{cpu} = \%cpuhash;
} else {
if ($args{cpus}) {
$xtree{vcpu}->{content} = $args{cpus};
if ($confdata->{vm}->{$node}->[0]->{cpus}) {
$updatetable->{vm}->{$node}->{cpus} = $args{cpus};
}
} elsif (defined $confdata->{vm}->{$node}->[0]->{cpus}) {
$xtree{vcpu}->{content} = $confdata->{vm}->{$node}->[0]->{cpus};
} else {
$xtree{vcpu}->{content} = 1;
}
}
if (defined($confdata->{vm}->{$node}->[0]->{clockoffset})) {
#If user requested a specific behavior, give it
$xtree{clock}->{offset} = $confdata->{vm}->{$node}->[0]->{clockoffset};
} else {
#Otherwise, only do local time for things that look MS
if (defined($confdata->{nodetype}->{$node}->[0]->{os}) and $confdata->{nodetype}->{$node}->[0]->{os} =~ /win.*/) {
$xtree{clock}->{offset} = 'localtime';
} else { #For everyone else, utc is preferred generally
$xtree{clock}->{offset} = 'utc';
}
}
$xtree{features}->{pae} = {};
$xtree{features}->{acpi} = {};
$xtree{features}->{apic} = {};
$xtree{features}->{content} = "\n";
($xtree{devices}->{disk}, my $errstr) = build_diskstruct($cdloc);
if ($errstr) {
return (-1, $errstr);
}
$xtree{devices}->{interface} = build_nicstruct($node);
#use content to force xml simple to not make model the 'name' of video
if (defined($confdata->{vm}->{$node}->[0]->{vidmodel})) {
my $model = $confdata->{vm}->{$node}->[0]->{vidmodel};
my $vram = '8192';
if ($model eq 'qxl') {
$xtree{devices}->{channel}->{type} = 'spicevmc';
$xtree{devices}->{channel}->{target}->{type} = 'virtio';
$xtree{devices}->{channel}->{target}->{name} = 'com.redhat.spice.0';
$vram = 65536; } #surprise, spice blows up with less vram than this after version 0.6 and up
$xtree{devices}->{video} = [ { 'content' => '', 'model' => { type => $model, vram => $vram } } ];
} else {
$xtree{devices}->{video} = [ { 'content' => '', 'model' => { type => 'vga', vram => 8192 } } ];
}
$xtree{devices}->{input}->{type} = 'tablet';
$xtree{devices}->{input}->{bus} = 'usb';
if (defined($confdata->{vm}->{$node}->[0]->{vidproto})) {
$xtree{devices}->{graphics}->{type} = $confdata->{vm}->{$node}->[0]->{vidproto};
} else {
$xtree{devices}->{graphics}->{type} = 'vnc';
}
$xtree{devices}->{graphics}->{autoport} = 'yes';
$xtree{devices}->{graphics}->{listen} = '0.0.0.0';
if ($confdata->{vm}->{$node}->[0]->{vidpassword}) {
$xtree{devices}->{graphics}->{password} = $confdata->{vm}->{$node}->[0]->{vidpassword};
} else {
$xtree{devices}->{graphics}->{password} = genpassword(20);
}
if (defined($hypcpumodel) and $hypcpumodel eq 'ppc64') {
$xtree{devices}->{emulator}->{content} = "/usr/bin/qemu-system-ppc64";
} elsif (defined($hypcpumodel) and $hypcpumodel eq 'ppc64le') {
# do nothing for ppc64le, do not support sound at this time
;
} else {
$xtree{devices}->{sound}->{model} = 'ac97';
}
$xtree{devices}->{console}->{type} = 'pty';
$xtree{devices}->{console}->{target}->{port} = '1';
return XMLout(\%xtree, RootName => "domain");
}
sub refresh_vm {
my $dom = shift;
my $newxml = $dom->get_xml_description();
$updatetable->{kvm_nodedata}->{$node}->{xml} = $newxml;
$newxml = XMLin($newxml);
my $vidport = $newxml->{devices}->{graphics}->{port};
my $vidproto = $newxml->{devices}->{graphics}->{type};
my $stty = $newxml->{devices}->{console}->{tty};
#$updatetable->{vm}->{$node}={vncport=>$vncport,textconsole=>$stty};
#$vmtab->setNodeAttribs($node,{vncport=>$vncport,textconsole=>$stty});
return { vidport => $vidport, textconsole => $stty, vidproto => $vidproto };
}
sub getcons {
my $node = shift();
my $type = shift();
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
unless ($dom) {
return 1, "Unable to query running VM";
}
my $consdata = refresh_vm($dom);
my $hyper = $confdata->{vm}->{$node}->[0]->{host};
if ($type eq "text") {
my $serialspeed;
if ($confdata->{nodehm}) {
$serialspeed = $confdata->{nodehm}->{$node}->[0]->{serialspeed};
}
my $sconsparms = { node => [ { name => [$node] } ] };
$sconsparms->{node}->[0]->{sshhost} = [$hyper];
$sconsparms->{node}->[0]->{psuedotty} = [ $consdata->{textconsole} ];
$sconsparms->{node}->[0]->{baudrate} = [$serialspeed];
return (0, $sconsparms);
} elsif ($type eq "vid") {
$consdata->{server} = $hyper;
my $domxml = $dom->get_xml_description();
my $parseddom = $parser->parse_string($domxml);
my ($graphicsnode) = $parseddom->findnodes("//graphics");
my $tpasswd;
if ($confdata->{vm}->{$node}->[0]->{vidpassword}) {
$tpasswd = $confdata->{vm}->{$node}->[0]->{vidpassword};
$graphicsnode->removeAttribute("passwdValidTo");
} else {
$tpasswd = genpassword(16);
my $validto = POSIX::strftime("%Y-%m-%dT%H:%M:%S", gmtime(time() + 60));
$graphicsnode->setAttribute("passwdValidTo", $validto);
}
$graphicsnode->setAttribute("passwd", $tpasswd);
$dom->update_device($graphicsnode->toString());
#$dom->update_device("<graphics type='".$consdata->{vidproto}."' passwd='$tpasswd' passwdValidTo='$validto' autoport='yes'/>");
$consdata->{password} = $tpasswd;
return $consdata;
#return (0,{$consdata->{vidproto}.'@'.$hyper.":".$consdata->{vidport}); #$consdata->{vncport});
}
}
sub getrvidparms {
my $node = shift;
my $location = getcons($node, "vid");
unless (ref $location) {
return (1, "Error: Unable to determine rvid destination for $node (appears VM is off)");
}
my @output = (
"method: kvm"
);
foreach (keys %$location) {
push @output, $_ . ":" . $location->{$_};
}
return 0, @output;
}
my %cached_noderanges;
sub pick_target {
my $node = shift;
my $addmemory = shift;
my $target;
my $mostfreememory = undef;
my $currentfreememory;
my $candidates = $confdata->{vm}->{$node}->[0]->{migrationdest};
my $currhyp = $confdata->{vm}->{$node}->[0]->{host};
#caching strategy is implicit on whether $addmemory is passed.
unless ($candidates) {
return undef;
}
my @fosterhyps; #noderange is relatively expensive, and generally we only will have a few distinct noderange descriptions to contend with in a mass adoption, so cache eache one for reuse across pick_target() calls
if (defined $cached_noderanges{$candidates}) {
@fosterhyps = @{ $cached_noderanges{$candidates} };
} else {
@fosterhyps = noderange($candidates);
$cached_noderanges{$candidates} = \@fosterhyps;
}
foreach (@fosterhyps) {
my $targconn;
my $cand = $_;
if ($_ eq $currhyp) { next; } #skip current node
if ($offlinehyps{$_}) { next }; #skip already offlined nodes
if (grep { "$_" eq $cand } @destblacklist) { next; } #skip blacklisted destinations
if ($addmemory and defined $hypstats{$_}->{freememory}) { #only used cache results when addmemory suggests caching can make sense
$currentfreememory = $hypstats{$_}->{freememory}
} else {
if (not nodesockopen($_, 22)) { $offlinehyps{$_} = 1; next; } #skip unusable destinations
eval { #Sys::Virt has bugs that cause it to die out in weird ways some times, contain it here
$targconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $_ . "/system?no_tty=1&netcat=nc");
};
unless ($targconn) {
eval { #Sys::Virt has bugs that cause it to die out in weird ways some times, contain it here
$targconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $_ . "/system?no_tty=1");
};
}
unless ($targconn) { next; } #skip unreachable destinations
$currentfreememory = $targconn->get_node_info()->{memory};
foreach ($targconn->list_domains()) {
if ($_->get_name() eq 'Domain-0') { next; } #Dom0 memory usage is elastic, we are interested in HVM DomU memory, which is inelastic
$currentfreememory -= $_->get_info()->{memory};
}
$hypstats{$cand}->{freememory} = $currentfreememory;
}
if ($addmemory and $addmemory->{$_}) {
$currentfreememory -= $addmemory->{$_};
}
if (not defined($mostfreememory)) {
$mostfreememory = $currentfreememory;
$target = $_;
} elsif ($currentfreememory > $mostfreememory) {
$mostfreememory = $currentfreememory;
$target = $_;
}
}
return $target;
}
sub migrate {
$node = shift();
my @args = @_;
my $targ;
foreach (@args) {
if (/^-/) { next; }
$targ = $_;
}
if ($offlinevms{$node}) {
return power("on");
}
#TODO: currently, we completely serialize migration events. Some IO fabrics can facilitate concurrent migrations
#One trivial example is an ethernet port aggregation where a single conversation may likely be unable to utilize all the links
#because traffic is balanced by a mac address hashing algorithim, but talking to several hypervisors would have
#distinct peers that can be balanced more effectively.
#The downside is that migration is sufficiently slow that a lot can change in the intervening time on a target hypervisor, but
#this should not be an issue if:
#xCAT is the only path a configuration is using to make changes in the virtualization stack
#xCAT implements a global semaphore mechanism that this plugin can use to assure migration targets do not change by our own hand..
#failing that.. flock.
unless ($targ) {
$targ = pick_target($node);
}
unless ($targ) {
return (1, "Unable to identify a suitable target host for guest $node");
}
if ($use_xhrm) {
xhrm_satisfy($node, $targ);
}
my $prevhyp;
my $target = "qemu+ssh://root@" . $targ . "/system?no_tty=1";
my $currhyp = "qemu+ssh://root@";
if ($confdata->{vm}->{$node}->[0]->{host}) {
$prevhyp = $confdata->{vm}->{$node}->[0]->{host};
$currhyp .= $prevhyp;
} else {
return (1, "Unable to find current location of $node");
}
$currhyp .= "/system?no_tty=1";
if ($currhyp eq $target) {
return (0, "Guest is already on host $targ");
}
my $srchypconn;
my $desthypconn;
unless ($offlinehyps{$prevhyp} or nodesockopen($prevhyp, 22)) {
$offlinehyps{$prevhyp} = 1;
}
my $srcnetcatadd = "&netcat=nc";
unless ($offlinehyps{$prevhyp}) {
eval { #Contain Sys::Virt bugs
$srchypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $prevhyp . "/system?no_tty=1$srcnetcatadd");
};
unless ($srchypconn) {
$srcnetcatadd = "";
eval { #Contain Sys::Virt bugs
$srchypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $prevhyp . "/system?no_tty=1");
};
}
}
unless ($srchypconn) {
if (grep { $_ eq '-f' } @args) {
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 1); }
$vmtab->setNodeAttribs($node, { host => $targ });
return (0, "migrated to $targ");
} else {
return (1, "Unable to reach $prevhyp to perform operation of $node, use nodech to change vm.host if certain of no split-brain possibility exists (or use -f on rmigrate)");
}
}
unless ($offlinehyps{$targ} or nodesockopen($targ, 22)) {
$offlinehyps{$targ} = 1;
}
my $destnetcatadd = "&netcat=nc";
unless ($offlinehyps{$targ}) {
eval { #Contain Sys::Virt bugs
$desthypconn = Sys::Virt->new(uri => $target . $destnetcatadd);
};
unless ($desthypconn) {
$destnetcatadd = "";
eval { #Contain Sys::Virt bugs
$desthypconn = Sys::Virt->new(uri => $target);
};
}
}
unless ($desthypconn) {
return (1, "Unable to reach $targ to perform operation of $node, destination unusable.");
}
if (defined $confdata->{vm}->{$node}->[0]->{storage} and $confdata->{vm}->{$node}->[0]->{storage} =~ /^nfs:/) {
#first, assure master is in place
if ($confdata->{vm}->{$node}->[0]->{master}) {
my $vmmastertab = xCAT::Table->new('vmmaster', -create => 0);
my $masterent;
if ($vmmastertab) {
$masterent = $vmmastertab->getAttribs({ name => $confdata->{vm}->{$node}->[0]->{master} }, ['storage']);
}
if ($masterent and $masterent->{storage}) {
foreach (split /,/, $masterent->{storage}) {
s/=.*//;
get_storage_pool_by_url($_, $desthypconn, $targ);
}
}
}
my $urls = $confdata->{vm}->{$node}->[0]->{storage} and $confdata->{vm}->{$node}->[0]->{storage};
foreach (split /,/, $urls) {
s/=.*//;
get_storage_pool_by_url($_, $desthypconn, $targ);
}
}
my $sock = IO::Socket::INET->new(Proto => 'udp');
my $ipa = inet_aton($node);
my $pa;
if ($ipa) {
$pa = sockaddr_in(7, $ipa); #UDP echo service, not needed to be actually
}
#serviced, we just want to trigger MAC move in the switch forwarding dbs
my $nomadomain;
eval {
$nomadomain = $srchypconn->get_domain_by_name($node);
};
unless ($nomadomain) {
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 1); }
$vmtab->setNodeAttribs($node, { host => $targ });
return (0, "migrated to $targ");
#return (1,"Unable to find $node on $prevhyp, vm.host may be incorrect or a split-brain condition, such as libvirt forgetting a guest due to restart or bug.");
}
my $newdom;
my $errstr;
eval {
$newdom = $nomadomain->migrate($desthypconn, &Sys::Virt::Domain::MIGRATE_LIVE, undef, undef, 0);
};
if ($@) { $errstr = $@; }
#TODO: If it looks like it failed to migrate, ensure the guest exists only in one place
if ($errstr) {
return (1, "Failed migration of $node from $prevhyp to $targ: $errstr");
}
unless ($newdom) {
return (1, "Failed migration from $prevhyp to $targ");
}
if ($ipa) {
system("arp -d $node"); #Make ethernet fabric take note of change
send($sock, "dummy", 0, $pa); #UDP packet to force forwarding table update in switches, ideally a garp happened, but just in case...
}
#BTW, this should all be moot since the underlying kvm seems good about gratuitous traffic, but it shouldn't hurt anything
refresh_vm($newdom);
#The migration seems tohave suceeded, but to be sure...
close($sock);
if ($desthypconn->get_domain_by_name($node)) {
#$updatetable->{vm}->{$node}->{host} = $targ;
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 1); }
$vmtab->setNodeAttribs($node, { host => $targ });
return (0, "migrated to $targ");
} else { #This *should* not be possible
return (1, "Failed migration from $prevhyp to $targ, despite normal looking run...");
}
}
sub getpowstate {
my $dom = shift;
my $vmstat;
if ($dom) {
$vmstat = $dom->get_info;
}
if ($vmstat and $runningstates{ $vmstat->{state} }) {
return "on";
} else {
return "off";
}
}
# Return storageformat definition
sub getstorageformat {
my $cfginfo = shift;
my @flags = split /,/, $cfginfo->{virtflags};
my $format;
foreach (@flags) {
if (/^imageformat=(.*)\z/) {
$format = $1;
} elsif (/^clonemethod=(.*)\z/) {
$clonemethod = $1;
}
}
if ($cfginfo->{storageformat}) {
$format = $cfginfo->{storageformat};
}
return $format;
}
sub xhrm_satisfy {
my $node = shift;
my $hyp = shift;
my $rc = 0;
my @nics = ();
my @storage = ();
if ($confdata->{vm}->{$node}->[0]->{nics}) {
@nics = split /,/, $confdata->{vm}->{$node}->[0]->{nics};
}
$rc |= system("scp $::XCATROOT/share/xcat/scripts/xHRM $hyp:/usr/bin");
foreach (@nics) {
s/=.*//; #this code cares not about the model of virtual nic
my $nic = $_;
my $vlanip;
my $netmask;
my $subnet;
my $vlan;
my $interface;
if ($nic =~ /^vl([\d]+)$/) {
$vlan = $1;
my $nwtab = xCAT::Table->new("networks", -create => 0);
if ($nwtab) {
my $sent = $nwtab->getAttribs({ vlanid => "$vlan" }, 'net', 'mask');
if ($sent and ($sent->{net})) {
$subnet = $sent->{net};
$netmask = $sent->{mask};
}
if (($subnet) && ($netmask)) {
my $hoststab = xCAT::Table->new("hosts", -create => 0);
if ($hoststab) {
my $tmp = $hoststab->getNodeAttribs($hyp, ['otherinterfaces']);
if (defined($tmp) && ($tmp) && $tmp->{otherinterfaces})
{
my $otherinterfaces = $tmp->{otherinterfaces};
my @itf_pairs = split(/,/, $otherinterfaces);
foreach (@itf_pairs) {
my ($name, $vip) = split(/:/, $_);
if (xCAT::NetworkUtils->ishostinsubnet($vip, $netmask, $subnet)) {
$vlanip = $vip;
last;
}
}
}
}
#get the vlan ip from nics table
unless ($vlanip) {
my $nicstable = xCAT::Table->new("nics", -create => 0);
if ($nicstable) {
my $tmp = $nicstable->getNodeAttribs($hyp, ['nicips']);
if ($tmp && $tmp->{nicips}) {
$tmp =~ /vl${vlan}nic!([^,]*)/;
$vlanip = $1;
}
}
}
}
}
}
#get the nic that vlan tagged
my $swtab = xCAT::Table->new("switch", -create => 0);
if ($swtab) {
my $tmp_switch = $swtab->getNodesAttribs([$hyp], [ 'vlan', 'interface' ]);
if (defined($tmp_switch) && (exists($tmp_switch->{$hyp}))) {
my $tmp_node_array = $tmp_switch->{$hyp};
foreach my $tmp (@$tmp_node_array) {
if (exists($tmp->{vlan})) {
my $vlans = $tmp->{vlan};
foreach my $vlan_tmp (split(',', $vlans)) {
if ($vlan_tmp == $vlan) {
if (exists($tmp->{interface})) {
$interface = $tmp->{interface};
}
last;
}
}
}
}
}
}
if (($interface) || ($interface =~ /primary/)) {
$interface =~ s/primary(:)?//g;
}
#print "interface=$interface nic=$nic vlanip=$vlanip netmask=$netmask\n";
if ($interface) {
$rc |= system("ssh $hyp xHRM bridgeprereq $interface:$nic $vlanip $netmask");
} else {
$rc |= system("ssh $hyp xHRM bridgeprereq $nic $vlanip $netmask");
}
#TODO: surprise! there is relatively undocumented libvirt capability for this...
#./tests/interfaceschemadata/ will have to do in lieu of documentation..
#note that RHEL6 is where that party starts
#of course, they don't have a clean 'migrate from normal interface to bridge' capability
#consequently, would have to have some init script at least pre-bridge it up..
#even then, may not be able to intelligently modify the bridge remotely, so may still not be feasible for our use..
#this is sufficiently hard, punting to 2.6 at least..
}
return $rc;
}
sub makedom {
my $node = shift;
my $cdloc = shift;
my $xml = shift;
my $dom;
my $errstr;
if (not $xml and $confdata->{kvmnodedata}->{$node} and $confdata->{kvmnodedata}->{$node}->[0] and $confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
#we do this to trigger storage prereq fixup
if (defined $confdata->{vm}->{$node}->[0]->{storage} and ($confdata->{vm}->{$node}->[0]->{storage} =~ /^nfs:/ or $confdata->{vm}->{$node}->[0]->{storage} =~ /^dir:/ or $confdata->{vm}->{$node}->[0]->{storage} =~ /^lvm:/)) {
if ($confdata->{vm}->{$node}->[0]->{master}) {
my $vmmastertab = xCAT::Table->new('vmmaster', -create => 0);
my $masterent;
if ($vmmastertab) {
$masterent = $vmmastertab->getAttribs({ name => $confdata->{vm}->{$node}->[0]->{master} }, ['storage']);
}
if ($masterent and $masterent->{storage}) {
foreach (split /,/, $masterent->{storage}) {
s/=.*//;
get_storage_pool_by_url($_);
}
}
}
my $urls = $confdata->{vm}->{$node}->[0]->{storage} and $confdata->{vm}->{$node}->[0]->{storage};
foreach (split /,/, $urls) {
s/=.*//;
get_storage_pool_by_url($_);
}
}
$xml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
my $newxml = reconfigvm($node, $xml);
if ($newxml) {
$xml = $newxml;
}
} elsif (not $xml) {
($xml, $errstr) = build_xmldesc($node, cd => $cdloc);
if ($errstr) {
return (1, $errstr);
}
}
my $parseddom = $parser->parse_string($xml);
my ($graphics) = $parseddom->findnodes("//graphics");
if (defined($graphics)) {
if ($confdata->{vm}->{$node}->[0]->{vidpassword}) {
$graphics->setAttribute("passwd", $confdata->{vm}->{$node}->[0]->{vidpassword});
} else {
$graphics->setAttribute("passwd", genpassword(20));
}
$graphics->setAttribute("listen", '0.0.0.0');
}
$xml = $parseddom->toString();
eval {
if ($::XCATSITEVALS{persistkvmguests}) {
$dom = $hypconn->define_domain($xml);
$dom->create()
} else {
$dom = $hypconn->create_domain($xml);
}
};
if ($@) { $errstr = $@; }
if (ref $errstr) {
$errstr = ":" . $errstr->{message};
}
if ($errstr) { return (undef, $errstr); }
if ($dom) {
refresh_vm($dom);
}
return $dom, undef;
}
sub createstorage {
#svn rev 6638 held the older vintage of createstorage
#print "createstorage called\n";
my $filename = shift;
my $mastername = shift;
my $size = shift;
my $cfginfo = shift;
my $force = shift;
my $node = $cfginfo->{node};
my $mountpath;
my $pathappend;
my $format = getstorageformat($cfginfo);
#for nfs paths and qemu-img, we do the magic locally only for now
my $basename;
my $dirname;
if ($mastername and $size) {
return 1, "Can not specify both a master to clone and size(s)";
}
$filename =~ s/=(.*)//;
my $model = $1;
unless ($model) {
#if not defined, model will stay undefined like above
$model = $cfginfo->{storagemodel};
}
my $prefix = 'hd';
if ($model eq 'scsi') {
$prefix = 'sd';
} elsif ($model eq 'virtio') {
$prefix = 'vd';
}
my @suffixes = ('a', 'b', 'd' .. 'zzz');
if ($filename =~ /^nfs:/ or $filename =~ /^dir:/ or $filename =~ /^lvm:/) { #libvirt storage pool to be used for this
my @sizes = split /,/, $size;
foreach (@sizes) {
get_filepath_by_url(url => $filename, dev => $prefix . shift(@suffixes), create => $_, force => $force, format => $format);
}
} else {
oldCreateStorage($filename, $mastername, $size, $cfginfo, $force);
}
my $masterserver;
if ($mastername) { #cloning
}
if ($size) { #new volume
}
}
sub oldCreateStorage {
my $filename = shift;
my $mastername = shift;
my $size = shift;
my $cfginfo = shift;
my $force = shift;
my $node = $cfginfo->{node};
my @flags = split /,/, $cfginfo->{virtflags};
foreach (@flags) {
if (/^imageformat=(.*)\z/) {
$imgfmt = $1;
} elsif (/^clonemethod=(.*)\z/) {
$clonemethod = $1;
}
}
my $mountpath;
my $pathappend;
my $storageserver;
#for nfs paths and qemu-img, we do the magic locally only for now
my $basename;
my $dirname;
($basename, $dirname) = fileparse($filename);
unless ($storageserver) {
if (-f $filename) {
unless ($force) {
return 1, "Storage already exists, delete manually or use --force";
}
unlink $filename;
}
}
if ($storageserver and $mastername and $clonemethod eq 'reflink') {
my $rc = system("ssh $storageserver mkdir -p $dirname");
if ($rc) {
return 1, "Unable to manage storage on remote server $storageserver";
}
} elsif ($storageserver) {
my @mounts = `mount`;
my $foundmount;
foreach (@mounts) {
if (/^$storageserver:$mountpath/) {
chomp;
s/^.* on (\S*) type nfs.*$/$1/;
$dirname = $_;
mkpath($dirname . $pathappend);
$foundmount = 1;
last;
}
}
unless ($foundmount) {
return 1, "qemu-img cloning requires that the management server have the directory $mountpath from $storageserver mounted";
}
} else {
mkpath($dirname);
}
if ($mastername and $size) {
return 1, "Can not specify both a master to clone and a size";
}
my $masterserver;
if ($mastername) {
unless ($mastername =~ /^\// or $mastername =~ /^nfs:/) {
$mastername = $xCAT_plugin::kvm::masterdir . '/' . $mastername;
}
if ($mastername =~ m!nfs://([^/]*)(/.*\z)!) {
$mastername = $2;
$masterserver = $1;
}
if ($masterserver ne $storageserver) {
return 1, "Not supporting cloning between $masterserver and $storageserver at this time, for now ensure master images and target VM images are on the same server";
}
my $rc;
if ($clonemethod eq 'qemu-img') {
my $dirn;
my $filn;
($filn, $dirn) = fileparse($filename);
chdir($dirn);
$rc = system("qemu-img create -f qcow2 -b $mastername $filename");
} elsif ($clonemethod eq 'reflink') {
if ($storageserver) {
$rc = system("ssh $storageserver cp --reflink $mastername $filename");
} else {
$rc = system("cp --reflink $mastername $filename");
}
}
if ($rc) {
return $rc, "Failure creating image $filename from $mastername";
}
}
if ($size) {
my $rc = system("qemu-img create -f $imgfmt $filename " . getUnits($size, "g", 1024));
if ($rc) {
return $rc, "Failure creating image $filename of size $size\n";
}
}
}
sub rinv {
shift;
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
my $currstate = getpowstate($dom);
my $currxml;
if ($currstate eq 'on') {
$currxml = $dom->get_xml_description();
} else {
$currxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
}
unless ($currxml) {
xCAT::SvrUtils::sendmsg([ 1, "VM does not appear to exist" ], $callback, $node);
return;
}
my $domain = $parser->parse_string($currxml);
my $uuid = $domain->findnodes('/domain/uuid')->[0]->to_literal;
$uuid =~ s/^(..)(..)(..)(..)-(..)(..)-(..)(..)/$4$3$2$1-$6$5-$8$7/;
xCAT::SvrUtils::sendmsg("UUID/GUID: $uuid", $callback, $node);
my $cpus = $domain->findnodes('/domain/vcpu')->[0]->to_literal;
xCAT::SvrUtils::sendmsg("CPUs: $cpus", $callback, $node);
my $memnode = $domain->findnodes('/domain/currentMemory')->[0];
my $maxmemnode = $domain->findnodes('/domain/memory')->[0];
unless ($memnode) {
$memnode = $maxmemnode;
}
if ($memnode) {
my $mem = $memnode->to_literal;
$mem = $mem / 1024;
xCAT::SvrUtils::sendmsg("Memory: $mem MB", $callback, $node);
}
if ($maxmemnode) {
my $maxmem = $maxmemnode->to_literal;
$maxmem = $maxmem / 1024;
xCAT::SvrUtils::sendmsg("Maximum Memory: $maxmem MB", $callback, $node);
}
invstorage($domain, $dom);
invnics($domain);
}
sub get_storage_pool_by_volume {
my $vol = shift;
my $path = $vol->get_path();
return get_storage_pool_by_path($path);
}
sub get_storage_pool_by_path {
#attempts to get pool for a volume, returns false on failure
my $file = shift;
my $pool;
return eval {
my @currpools = $hypconn->list_storage_pools();
push @currpools, $hypconn->list_defined_storage_pools();
foreach $pool (@currpools) {
my $parsedpool = $parser->parse_string($pool->get_xml_description());
my $currpath = $parsedpool->findnodes("/pool/target/path/text()")->[0]->data;
if ($currpath eq $file or $file =~ /^$currpath\/[^\/]*$/) {
return $pool;
}
}
return undef;
# $pool = $hypconn->get_storage_pool_by_uuid($pooluuid);
};
}
sub invstorage {
my $domain = shift; # the dom obj of XML
my $dom = shift; # the real domain obj
my @disks = $domain->findnodes('/domain/devices/disk');
my $disk;
foreach $disk (@disks) {
my $name = $disk->findnodes('./target')->[0]->getAttribute("dev");
my $xref = "";
my $addr = $disk->findnodes('./address')->[0];
if ($addr) {
if ($name =~ /^vd/) {
$xref = " (v" . $addr->getAttribute("bus") . ":" . $addr->getAttribute('slot') . "." . $addr->getAttribute("function") . ")";
$xref =~ s/0x//g;
} else {
$xref = " (d" . $addr->getAttribute("controller") . ":" . $addr->getAttribute("bus") . ":" . $addr->getAttribute("unit") . ")";
}
}
my @candidatenodes = $disk->findnodes('./source');
unless (scalar @candidatenodes) {
next;
}
my $file = $candidatenodes[0]->getAttribute('file');
my $dev = $candidatenodes[0]->getAttribute('dev');
my $vollocation;
my $size;
my %info;
if ($file) { # for the volumn is a file in storage poll
#we'll attempt to map file path to pool name and volume name
#fallback to just reporting filename if not feasible
#libvirt lacks a way to lookup a storage pool by path, so we'll only do so if using the 'default' xCAT scheme with uuid in the path
$file =~ m!/([^/]*)/($node\..*)\z!;
my $volname = $2;
$vollocation = $file;
eval {
my $pool = get_storage_pool_by_path($file);
my $poolname = $pool->get_name();
$vollocation = "[$poolname] $volname";
};
#at least I get to skip the whole pool mess here
my $vol = $hypconn->get_storage_volume_by_path($file);
if ($vol) {
%info = %{ $vol->get_info() };
}
} elsif ($dev) { # for the volumn is a block device
$vollocation = $dev;
%info = %{ $dom->get_block_info($dev) };
}
if ($info{allocation} and $info{capacity}) {
$size = $info{allocation};
$size = $size / 1048576; #convert to MB
$size = sprintf("%.3f", $size);
$size .= "/" . ($info{capacity} / 1048576);
}
$callback->({
node => {
name => $node,
data => {
desc => "Disk $name$xref",
contents => "$size MB @ $vollocation",
}
}
});
}
}
sub invnics {
my $domain = shift;
my @nics = $domain->findnodes('/domain/devices/interface');
my $nic;
foreach $nic (@nics) {
my $mac = $nic->findnodes('./mac')->[0]->getAttribute('address');
my $addr = $nic->findnodes('./address')->[0];
my $loc;
if ($addr) {
my $bus = $addr->getAttribute('bus');
$bus =~ s/^0x//;
my $slot = $addr->getAttribute('slot');
$slot =~ s/^0x//;
my $function = $addr->getAttribute('function');
$function =~ s/^0x//;
$loc = " at $bus:$slot.$function";
}
$callback->({
node => {
name => $node,
data => {
desc => "Network adapter$loc",
contents => $mac,
}
}
});
}
}
sub rmvm {
shift;
@ARGV = @_;
my $force;
my $purge;
GetOptions(
'f' => \$force,
'p' => \$purge,
);
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
my $currstate = getpowstate($dom);
my $currxml;
if ($currstate eq 'on') {
if ($force) {
$currxml = $dom->get_xml_description();
$dom->destroy();
} else {
xCAT::SvrUtils::sendmsg([ 1, "Cannot rmvm active guest (use -f argument to force)" ], $callback, $node);
return;
}
} else {
$currxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
unless ($currxml) {
xCAT::SvrUtils::sendmsg([ 1, "Cannot remove guest vm, no such vm found" ], $callback, $node);
return;
}
}
if ($purge and $currxml) {
my $deadman = $parser->parse_string($currxml);
my @purgedisks = $deadman->findnodes("/domain/devices/disk/source");
my $disk;
foreach $disk (@purgedisks) {
my $disktype = $disk->parentNode()->getAttribute("device");
if ($disktype eq "cdrom") { next; }
my @driver = $disk->parentNode()->findnodes("driver");
unless ($driver[0]) { next; }
my $drivertype = $driver[0]->getAttribute("type");
if (($drivertype eq "raw") || ($disktype eq "block")) {
#For raw or block devices, do not remove, even if purge was specified. Log info message.
xCAT::MsgUtils->trace(0, "i", "Not purging raw or block storage device: $disk");
next;
}
my $file = $disk->getAttribute("file");
unless ($file) {
xCAT::MsgUtils->trace(0, "w", "Not able to find 'file' attribute value for: $disk");
next;
}
# try to check the existence first, if cannot find, do nothing.
# we do retry because we found sometimes the delete might fail
my $retry = 0;
my $vol;
while ($retry < 10) {
eval { $vol = $hypconn->get_storage_volume_by_path($file); };
if ($@) {
# Cannot find volumn, then stop delete
xCAT::MsgUtils->trace(0, "e", "kvm: $@") if ($retry == 0);
last;
}
if ($vol) {
eval {
# Need to call get_info() before deleting a volume, without that, delete() will sometimes fail. Issue #455
$vol->get_info();
$vol->delete();
};
if ($@) {
xCAT::MsgUtils->trace(0, "e", "kvm: $@");
}
}
$retry++;
}
}
}
eval { #try to fetch the domain by name even after it has been destroyed, if it is still there it needs an 'undefine'
$dom = $hypconn->get_domain_by_name($node);
$dom->undefine();
};
$updatetable->{kvm_nodedata}->{'!*XCATNODESTODELETE*!'}->{$node} = 1;
}
sub chvm {
shift;
my @addsizes;
my $resize;
my $cpucount;
my @purge;
my @derefdisks;
my $memory;
my $cdrom;
my $eject;
my $pcpuset;
my $numanodeset;
my $passthrudevices;
my $devicestodetach;
@ARGV = @_;
require Getopt::Long;
Getopt::Long::Configure("bundling");
Getopt::Long::Configure("no_pass_through");
if (!GetOptions(
"a=s" => \@addsizes,
"d=s" => \@derefdisks,
"mem|memory=s" => \$memory,
"optical|dvd|cdrom=s" => \$cdrom,
"eject" => \$eject,
"cpus|cpu=s" => \$cpucount,
"p=s" => \@purge,
"resize=s" => \$resize,
"cpupin=s" => \$pcpuset,
"membind=s" => \$numanodeset,
"devpassthru=s" => \$passthrudevices,
"devdetach=s" => \$devicestodetach,
)) {
my $usage_string = xCAT::Usage->getUsage("chvm");
my $rsp;
push @{ $rsp->{data} }, "$usage_string";
xCAT::MsgUtils->message("E", $rsp, $callback);
return;
}
if (@derefdisks) {
xCAT::SvrUtils::sendmsg([ 1, "Detach without purge TODO for kvm" ], $callback, $node);
return;
}
if (@addsizes and @purge) {
xCAT::SvrUtils::sendmsg([ 1, "Currently adding and purging concurrently is not supported" ], $callback, $node);
return;
}
if (defined $pcpuset) {
$pcpuset =~ s/["']//g;
if ("###$pcpuset" eq "###" or $pcpuset =~ /[^\d\,\^\-]/) {
xCAT::SvrUtils::sendmsg([ 1, "cpu pining: invalid cpuset" ], $callback, $node);
return;
}
}
if (defined $numanodeset) {
$numanodeset =~ s/["']//g;
if ("###$numanodeset" eq "###" or $numanodeset =~ /[^\d\,\^\-]/) {
xCAT::SvrUtils::sendmsg([ 1, "memory binding: invalid NUMA nodeset" ], $callback, $node);
return;
}
}
my %useddisks;
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
my $vmxml;
if ($dom) {
$vmxml = $dom->get_xml_description();
} else {
$vmxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
}
my $currstate = getpowstate($dom);
if (defined $confdata->{vm}->{$node}->[0]->{storage}) {
my $store;
foreach $store (split /\|/, $confdata->{vm}->{$node}->[0]->{storage}) {
$store =~ s/,.*//;
$store =~ s/=.*//;
if (($store =~ /^nfs:\/\//) || ($store =~ /^dir:\/\//) || ($store =~ /^lvm:/)) {
my %disks = %{ get_multiple_paths_by_url(url => $store, node => $node) };
foreach (keys %disks) {
$useddisks{ $disks{$_}->{device} } = 1;
}
}
}
}
# The function get_multiple_paths_by_url() is used to polulate useddisks hash,
# but it only returns disk volumes from kvm host.
# cdrom is not returned by get_multiple_paths_by_url() but is defined as a disk device
# in xml definition of the VM.
# We add cdrom entry to useddisks hash to make sure the device name used by cdrom is not
# selected for the new disk about to be added (chvm -a)
my @cdrom_names = get_cdrom_device_names($vmxml);
foreach my $cdrom_name (@cdrom_names) {
$useddisks{$cdrom_name} = 1;
}
if (@addsizes) { #need to add disks, first identify used devnames
my @diskstoadd;
my $location = $confdata->{vm}->{$node}->[0]->{storage};
unless ($location) {
# Calling add disk for a vm with no storage defined
xCAT::SvrUtils::sendmsg([ 1, "Can not add storage, vmstorage attribute not defined." ], $callback, $node);
return;
}
$location =~ s/.*\|//; #use the rightmost location for making new devices
$location =~ s/,.*//; #no comma specified parameters are valid
$location =~ s/=(.*)//; #store model if specified here
my $model = $1;
unless ($model) {
#if not defined, model will stay undefined like above
$model = $confdata->{vm}->{$node}->[0]->{storagemodel}
}
my $prefix = 'hd';
if ($model eq 'scsi') {
$prefix = 'sd';
} elsif ($model eq 'virtio') {
$prefix = 'vd';
}
if ($prefix eq 'hd' and $currstate eq 'on') {
xCAT::SvrUtils::sendmsg("VM must be powered off to add IDE drives", $callback, $node);
next;
}
my @suffixes;
if ($prefix eq 'hd') {
@suffixes = ('a', 'b', 'd' .. 'zzz');
} else {
@suffixes = ('a' .. 'zzz');
}
my @newsizes;
foreach (@addsizes) {
push @newsizes, split /,/, $_;
}
my $format = getstorageformat($confdata->{vm}->{$node}->[0]);
foreach (@newsizes) {
my $dev;
do {
$dev = $prefix . shift(@suffixes);
} while ($useddisks{$dev});
#ok, now I need a volume created to attach
push @diskstoadd, get_filepath_by_url(url => $location, dev => $dev, create => $_, format => $format);
}
#now that the volumes are made, must build xml for each and attempt attach if and only if the VM is live
foreach (@diskstoadd) {
my $suffix;
my $format;
if (/^[^\.]*\.([^\.]*)\.([^\.]*)/) {
$suffix = $1;
$format = $2;
} elsif (/^[^\.]*\.([^\.]*)/) {
$suffix = $1;
$format = 'raw';
}
if ($confdata->{vm}->{$node}->[0]->{storageformat}) {
$format = $confdata->{vm}->{$node}->[0]->{storageformat};
}
#when creating a new disk not cloned from anything, disable cache as copy on write content similarity is a lost cause...
my $cachemode = 'none';
#unless user knows better
if ($confdata->{vm}->{$node}->[0]->{storagecache}) {
$cachemode = $confdata->{vm}->{$node}->[0]->{storagecache};
}
my $bus;
if ($suffix =~ /^sd/) {
$bus = 'scsi';
} elsif ($suffix =~ /hd/) {
$bus = 'ide';
} elsif ($suffix =~ /vd/) {
$bus = 'virtio';
}
my $xml = "<disk type='file' device='disk'><driver name='qemu' type='$format' cache='$cachemode'/><source file='$_'/><target dev='$suffix' bus='$bus'/></disk>";
if ($currstate eq 'on') { #attempt live attach
eval {
$dom->attach_device($xml);
};
if ($@) {
my $err = $@;
if ($err =~ /No more available PCI addresses/) {
xCAT::SvrUtils::sendmsg([ 1, "Exhausted Virtio limits trying to add $_" ], $callback, $node);
} else {
xCAT::SvrUtils::sendmsg([ 1, "Unable to attach $_ because of " . $err ], $callback, $node);
}
my $file = $_;
my $vol = $hypconn->get_storage_volume_by_path($file);
if ($vol) {
$vol->delete();
}
}
$vmxml = $dom->get_xml_description();
} elsif ($confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
$vmxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
my $disknode = $parser->parse_balanced_chunk($xml);
my $vmdoc = $parser->parse_string($vmxml);
my $devicesnode = $vmdoc->findnodes("/domain/devices")->[0];
$devicesnode->appendChild($disknode);
$vmxml = $vmdoc->toString();
}
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
} elsif (@purge) {
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
my $vmxml;
if ($dom) {
$vmxml = $dom->get_xml_description();
} else {
$vmxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
}
my $currstate = getpowstate($dom);
my @disklist = get_disks_by_userspecs(\@purge, $vmxml, 'returnmoddedxml');
my $moddedxml = shift @disklist;
foreach (@disklist) {
my $devxml = $_->[0];
my $file = $_->[1];
$file =~ m!/([^/]*)/($node\..*)\z!;
#first, detach the device.
eval {
if ($currstate eq 'on') {
$dom->detach_device($devxml);
$vmxml = $dom->get_xml_description();
} else {
$vmxml = $moddedxml;
}
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "Unable to remove device" ], $callback, $node);
} else {
#if that worked, remove the disk..
my $vol = $hypconn->get_storage_volume_by_path($file);
if ($vol) {
$vol->delete();
}
}
}
}
my $newcdxml;
if ($cdrom) {
my $cdpath;
if ($cdrom =~ m!://!) {
my $url = $cdrom;
$url =~ s!([^/]+)\z!!;
my $imagename = $1;
my $poolobj = get_storage_pool_by_url($url);
unless ($poolobj) { die "Cound not get storage pool for $url"; }
my $poolxml = $poolobj->get_xml_description(); #yes, I have to XML parse for even this...
my $parsedpool = $parser->parse_string($poolxml);
$cdpath = $parsedpool->findnodes("/pool/target/path/text()")->[0]->data;
$cdpath .= "/" . $imagename;
} else {
if ($cdrom =~ m!^/dev/!) {
die "TODO: device pass through if anyone cares";
} elsif ($cdrom =~ m!^/!) { #full path... I guess
$cdpath = $cdrom;
} else {
die "TODO: relative paths, use client cwd as hint?";
}
}
unless ($cdpath) {
die "unable to understand cd path specification";
}
$newcdxml = "<disk type='file' device='cdrom'><source file='$cdpath'/><target dev='hdc'/><readonly/></disk>";
} elsif ($eject) {
$newcdxml = "<disk type='file' device='cdrom'><target dev='hdc'/><readonly/></disk>";
}
if ($newcdxml) {
if ($currstate eq 'on') {
$dom->attach_device($newcdxml);
$vmxml = $dom->get_xml_description();
} else {
unless ($vmxml) {
$vmxml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
}
my $domparsed = $parser->parse_string($vmxml);
my $candidatenodes = $domparsed->findnodes("//disk[\@device='cdrom']");
if (scalar(@$candidatenodes) != 1) {
die "shouldn't be possible, should only have one cdrom";
}
my $newcd = $parser->parse_balanced_chunk($newcdxml);
$candidatenodes->[0]->replaceNode($newcd);
my $moddedxml = $domparsed->toString;
if ($moddedxml) {
$vmxml = $moddedxml;
}
}
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
if ($resize) {
my $shrinking_not_supported = "qcow2 doesn't support shrinking images yet";
# Get a list of disk=size pairs
my @resize_disks = split(/,/, $resize);
for my $single_disk (@resize_disks) {
# For each comma separated disk, get disk name and the size to change it to
my ($disk_to_resize, $value) = split(/=/, $single_disk);
if ($disk_to_resize) {
unless (exists $useddisks{$disk_to_resize}) {
# Disk name given does not match any disks for this vm
xCAT::SvrUtils::sendmsg([ 1, "Disk $disk_to_resize does not exist" ], $callback, $node);
next;
}
# Get desired (new) disk size
$value = getUnits($value, "G", 1);
# Now search kvm_nodedata table to find the volume for this disk
my $myxml = $parser->parse_string($vmxml);
my @alldisks = $myxml->findnodes("/domain/devices/disk");
# Look through all the disk entries
foreach my $disknode (@alldisks) {
my $devicetype = $disknode->getAttribute("device");
# Skip cdrom devices
if ($devicetype eq "cdrom") { next; }
# Get name of the disk
my $diskname = $disknode->findnodes('./target')->[0]->getAttribute('dev');
# Is this a disk we were looking for to resize ?
if ($diskname eq $disk_to_resize) {
my $file = $disknode->findnodes('./source')->[0]->getAttribute('file');
my $vol = $hypconn->get_storage_volume_by_path($file);
if ($vol) {
# Always pass RESIZE_SHRINK flag to resize(). It is required when shrinking
# the volume size and is ignored when growing volume size
eval {
$vol->resize($value, &Sys::Virt::StorageVol::RESIZE_SHRINK);
};
if ($@) {
if ($@ =~ /$shrinking_not_supported/) {
# qcow2 does not support shrinking volumes, display more readable error
xCAT::SvrUtils::sendmsg([ 1, "Resizing disk $disk_to_resize failed, $shrinking_not_supported" ], $callback, $node);
}
else {
# some other resize error from libvirt, just display it
xCAT::SvrUtils::sendmsg([ 1, "Resizing disk $disk_to_resize failed, $@" ], $callback, $node);
}
}
else {
# success
xCAT::SvrUtils::sendmsg([ 0, "Resized disk $disk_to_resize" ], $callback, $node);
}
}
last; # Found the disk we were looking for. Go to the next disk.
}
}
}
}
}
if ($cpucount or $memory) {
if ($currstate eq 'on') {
if ($cpucount) { xCAT::SvrUtils::sendmsg([ 1, "Hot add of cpus not supported (VM must be powered down to successfuly change)" ], $callback, $node); }
if ($cpucount) {
#$dom->set_vcpus($cpucount); this didn't work out as well as I hoped..
#xCAT::SvrUtils::sendmsg([1,"Hot add of cpus not supported"],$callback,$node);
}
if ($memory) {
eval {
$dom->set_memory(getUnits($memory, "M", 1024));
};
if ($@) {
if ($@ =~ /cannot set memory higher/) {
xCAT::SvrUtils::sendmsg([ 1, "Unable to increase memory beyond current capacity (requires VM to be powered down to change)" ], $callback, $node);
}
} else {
if ($confdata->{vm}->{$node}->[0]->{memory} and $confdata->{vm}->{$node}->[0]->{memory} != $memory) {
$updatetable->{vm}->{$node}->{memory} = $memory;
}
}
$vmxml = $dom->get_xml_description();
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
} else { #offline xml edits
my $parsed = $parser->parse_string($vmxml); #TODO: should only do this once, oh well
if ($cpucount) {
my $hypcpumodel = $confdata->{ $confdata->{vm}->{$node}->[0]->{host} }->{cpumodel};
if ($hypcpumodel eq "ppc64") {
my $cputhreads = $parsed->findnodes("/domain/cpu/topology")->[0]->getAttribute('threads');
unless ($cputhreads) {
$cputhreads = "1";
}
$parsed->findnodes("/domain/cpu/topology")->[0]->setAttribute('cores' => $cpucount);
$cpucount *= $cputhreads;
}
$parsed->findnodes("/domain/vcpu/text()")->[0]->setData($cpucount);
}
if ($memory) {
$parsed->findnodes("/domain/memory/text()")->[0]->setData(getUnits($memory, "M", 1024));
my @currmem = $parsed->findnodes("/domain/currentMemory/text()");
foreach (@currmem) {
$_->setData(getUnits($memory, "M", 1024));
}
if ($confdata->{vm}->{$node}->[0]->{memory} and $confdata->{vm}->{$node}->[0]->{memory} != $memory) {
$updatetable->{vm}->{$node}->{memory} = $memory;
}
}
$vmxml = $parsed->toString;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
if (defined $pcpuset) {
if ($currstate eq 'on') {
#get the vcpuinfo of the domain
my @vcpuinfo;
eval { @vcpuinfo = $dom->get_vcpu_info(); };
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
return;
}
#get the cpuinfo of the host
my ($totcpus, $onlinemap, $totonline);
eval { ($totcpus, $onlinemap, $totonline) = $hypconn->get_node_cpu_map(); };
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
return;
}
#convert the cpuset to bitmap,which is required by pin_vcpu()
my @pcpumaparr = (0) x $totcpus;
my @cpurange = split ",", $pcpuset;
foreach my $rangeslice (@cpurange) {
if ($rangeslice =~ /^(\d*)-(\d*)$/) {
my ($left, $right) = ($1, $2);
@pcpumaparr[ $left .. $right ] = (1) x ($right - $left + 1);
} elsif ($rangeslice =~ /^\^(\d*)$/) {
if ($pcpumaparr[$1] == 0) {
xCAT::SvrUtils::sendmsg([ 1, "\'$rangeslice\' is ignored, please make sure the specified cpu set is correct" ], $callback, $node);
return;
} else {
$pcpumaparr[$1] = 0;
}
} elsif ($rangeslice =~ /^(\d*)$/) {
$pcpumaparr[$1] = 1;
}
}
my $pcpumap = join //, @pcpumaparr;
my $mask = pack("b*", $pcpumap);
#Pin the virtual CPU given to physical CPUs given
foreach (@vcpuinfo) {
eval {
$dom->pin_vcpu($_->{number}, $mask);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
}
}
$vmxml = $dom->get_xml_description();
my $parsed = $parser->parse_string($vmxml);
my $ref = $parsed->findnodes("/domain/vcpu");
$ref->[0]->removeAttribute("cpuset");
$vmxml = $parsed->toString;
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
} else {
my $parsed = $parser->parse_string($vmxml);
my $ref = $parsed->findnodes("/domain/vcpu");
$ref->[0]->setAttribute("cpuset", $pcpuset);
#for virtual CPUs which have the vcpupin specified,
# the cpuset specified by/domain/vcpu/cpuset will be ignored
my $ref = $parsed->findnodes("/domain");
my $cputuneref = $parsed->findnodes("/domain/cputune");
$cputuneref->[0]->parentNode->removeChild($cputuneref->[0]);
$vmxml = $parsed->toString;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
if (defined $numanodeset) {
if ($currstate eq 'on') {
eval {
my %tmphash = (Sys::Virt::Domain->NUMA_NODESET => "$numanodeset");
$dom->set_numa_parameters(\%tmphash);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
return;
}
$vmxml = $dom->get_xml_description();
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
} else {
my %numatunehash;
$numatunehash{memory} = [ { nodeset => "$numanodeset" } ];
my $numatunexml = XMLout(\%numatunehash, RootName => "numatune");
my $parsed = $parser->parse_string($vmxml);
my $numatuneref = $parsed->findnodes("/domain/numatune");
if ($numatuneref)
{
#/domain/numatune exist,modify the numatune/nodeset
my $ref = $parsed->findnodes("/domain/numatune/memory");
$ref->[0]->setAttribute("nodeset", $numanodeset);
} else {
#/domain/numatune does not exist,create one
my $ref = $parsed->findnodes("/domain");
my $numatunenode = $parser->parse_balanced_chunk($numatunexml);
$ref->[0]->appendChild($numatunenode);
}
$vmxml = $parsed->toString;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
$passthrudevices =~ s/["']//g;
if (defined $passthrudevices) {
my @prdevarr = split ",", $passthrudevices;
unless (scalar @prdevarr) {
xCAT::SvrUtils::sendmsg([ 1, "device passthrough: no device specified" ], $callback, $node);
return;
}
foreach my $devname (@prdevarr) {
my $devobj;
eval {
$devobj = $hypconn->get_node_device_by_name($devname);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
next;
}
my $devxml = $devobj->get_xml_description();
unless ($devxml) {
next;
}
my $devhash = XMLin($devxml);
if (defined $devhash->{capability}->{type} and $devhash->{capability}->{type} =~ /pci/i) {
my %tmphash;
$tmphash{mode} = 'subsystem';
$tmphash{type} = $devhash->{capability}->{type};
$tmphash{managed} = "yes";
$tmphash{driver}->{name} = "vfio";
$tmphash{source}->{address}->[0] = \%{ $devhash->{'capability'}->{'iommuGroup'}->{'address'} };
my $newxml = XMLout(\%tmphash, RootName => "hostdev");
if ($currstate eq 'on') {
#for a running KVM guest, first unbind the device from the existing driver,
#reset the device, and bind it
#If the <hostdev> description of a PCI device includes the attribute managed='yes',
#and the hypervisor driver supports it, then the device is in managed mode, and attempts to
#use that passthrough device in an active guest will automatically behave as if nodedev-detach
#(guest start, device hot-plug) and nodedev-reattach (guest stop, device hot-unplug)
#were called at the right points.
#in case the hypervisor driver does not support managed mode, do this explicitly here
eval {
$devobj->dettach(undef, 0);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 0, "detaching $devname from host:$@" ], $callback, $node);
}
eval {
$devobj->reset();
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 0, "resetting $devname:$@" ], $callback, $node);
}
my $flag = 0;
if ($dom->is_persistent()) {
$flag = &Sys::Virt::Domain::DEVICE_MODIFY_LIVE | &Sys::Virt::Domain::DEVICE_MODIFY_CONFIG;
} else {
$flag = &Sys::Virt::Domain::DEVICE_MODIFY_LIVE;
}
eval {
$dom->attach_device($newxml, $flag);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "attaching device to guest:$@" ], $callback, $node);
next;
} else {
$vmxml = $dom->get_xml_description();
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
xCAT::SvrUtils::sendmsg([ 0, "passthrough: $devname attached to guest successfully " ], $callback, $node);
}
} else {
my $hostdevfound;
$hostdevfound = 0;
my $parsed = $parser->parse_string($vmxml);
my $ref = $parsed->findnodes("/domain/devices");
my @hostdevlist = $ref->[0]->findnodes("./hostdev");
#check whether the hostdev existed in guest xml
foreach my $hostdevref (@hostdevlist) {
my $devaddrref = $hostdevref->findnodes("./source/address");
my $domain = $devaddrref->[0]->getAttribute("domain");
my $bus = $devaddrref->[0]->getAttribute("bus");
my $slot = $devaddrref->[0]->getAttribute("slot");
my $function = $devaddrref->[0]->getAttribute("function");
my $curdevaddr = \%{ $devhash->{'capability'}->{'iommuGroup'}->{'address'} };
if (("$curdevaddr->{domain}" eq "$domain") and
("$curdevaddr->{bus}" eq "$bus") and
("$curdevaddr->{slot}" eq "$slot") and
("$curdevaddr->{function}" eq "$function")) {
#hostdev existed in guest xml
$hostdevfound = 1;
goto PROCESS_HOSTDEV_XML_ATTATCH;
}
}
PROCESS_HOSTDEV_XML_ATTATCH:
unless ($hostdevfound) {
#hostdev does not exist,add into guest xml
my $hostdevnode = $parser->parse_balanced_chunk($newxml);
$ref->[0]->appendChild($hostdevnode);
$vmxml = $parsed->toString;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
}
}
}
}
$devicestodetach =~ s/["']//g;
if (defined $devicestodetach) {
my @devarr = split ",", $devicestodetach;
unless (scalar @devarr) {
xCAT::SvrUtils::sendmsg([ 1, "device detaching: no device specified" ], $callback, $node);
return;
}
foreach my $devname (@devarr) {
my $devobj;
eval {
$devobj = $hypconn->get_node_device_by_name($devname);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "$@" ], $callback, $node);
next;
}
my $devxml = $devobj->get_xml_description();
unless ($devxml) {
next;
}
my $devhash = XMLin($devxml);
if (defined $devhash->{capability}->{type} and $devhash->{capability}->{type} =~ /pci/i) {
my %tmphash;
$tmphash{mode} = 'subsystem';
$tmphash{type} = $devhash->{capability}->{type};
$tmphash{managed} = "yes";
$tmphash{driver}->{name} = "vfio";
$tmphash{source}->{address}->[0] = \%{ $devhash->{'capability'}->{'iommuGroup'}->{'address'} };
my $newxml = XMLout(\%tmphash, RootName => "hostdev");
if ($currstate eq 'on') {
my $flag = 0;
if ($dom->is_persistent()) {
$flag = &Sys::Virt::Domain::DEVICE_MODIFY_LIVE | &Sys::Virt::Domain::DEVICE_MODIFY_CONFIG;
} else {
$flag = &Sys::Virt::Domain::DEVICE_MODIFY_LIVE;
}
eval {
$dom->detach_device($newxml, $flag);
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "detaching device from guest:$@" ], $callback, $node);
next;
} else {
$vmxml = $dom->get_xml_description();
if ($vmxml) {
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
}
eval {
$devobj->reattach();
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 0, "reattaching device to host:$@" ], $callback, $node);
}
xCAT::SvrUtils::sendmsg([ 0, "devdetach: $devname detached from guest successfully " ], $callback, $node);
}
} else {
my $hostdevfound;
$hostdevfound = 0;
my $hostdevobj;
my $parsed = $parser->parse_string($vmxml);
my $ref = $parsed->findnodes("/domain/devices");
my @hostdevlist = $ref->[0]->findnodes("./hostdev");
#check whether the hostdev existed in guest xml
foreach my $hostdevref (@hostdevlist) {
my $devaddrref = $hostdevref->findnodes("./source/address");
my $domain = $devaddrref->[0]->getAttribute("domain");
my $bus = $devaddrref->[0]->getAttribute("bus");
my $slot = $devaddrref->[0]->getAttribute("slot");
my $function = $devaddrref->[0]->getAttribute("function");
my $curdevaddr = \%{ $devhash->{'capability'}->{'iommuGroup'}->{'address'} };
if (("$curdevaddr->{domain}" eq "$domain") and
("$curdevaddr->{bus}" eq "$bus") and
("$curdevaddr->{slot}" eq "$slot") and
("$curdevaddr->{function}" eq "$function")) {
#hostdev existed in guest xml
$hostdevfound = 1;
$hostdevobj = $hostdevref;
goto PROCESS_HOSTDEV_XML_DETATCH;
}
}
PROCESS_HOSTDEV_XML_DETATCH:
if ($hostdevfound) {
#hostdev exist,remove it from guest xml
my $hostdevnode = $parser->parse_balanced_chunk($newxml);
$hostdevobj->parentNode()->removeChild($hostdevobj);
$vmxml = $parsed->toString;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $vmxml;
xCAT::SvrUtils::sendmsg([ 0, "devdetach: $devname detached from guest $node successfully " ], $callback, $node);
} else {
xCAT::SvrUtils::sendmsg([ 1, "device detaching: the specified device $devname is not attached to $node yet" ], $callback, $node);
return;
}
}
}
}
}
}
#######################################################################
# get_disks_by_userspecs
# Description: get the storage device info ( xml and source file ) of
# the user specified disk devices
# Arguments:
# $specs : ref to the user specified disk name list
# $xml : the xml string of the domain
# $returnmoddedxml : switch on whether to prepend
# the domain xml with the user specified disk removed
# to the beginning of the return array
# Return :
# An array with the structure
# [
# <domain xml>(optional: with the user specified disk removed,
# exist only if $returnmoddedxml specified),
# [<the disk device xml>, <the source file of the disk device>],
# [<the disk device xml>, <the source file of the disk device>],
# ...
# ]
# Example :
# 1. my @disklist = get_disks_by_userspecs(\@diskname, $vmxml, 'returnmoddedxml');
# my $moddedxml = shift @disklist;
# 2. my @disklist = get_disks_by_userspecs(\@diskname, $vmxml)
#
#######################################################################
sub get_disks_by_userspecs {
my $specs = shift;
my $xml = shift;
my $returnmoddedxml = shift;
my $struct = XMLin($xml, forcearray => 1);
my $dominf = $parser->parse_string($xml);
my @disknodes = $dominf->findnodes('/domain/devices/disk');
my @returnxmls;
foreach my $spec (@$specs) {
my $disknode;
foreach $disknode (@disknodes) {
if ($spec =~ /^.d./) { #vda, hdb, sdc, etc, match be equality to target->{dev}
if ($disknode->findnodes('./target')->[0]->getAttribute("dev") eq $spec) {
push @returnxmls, [ $disknode->toString(), $disknode->findnodes('./source')->[0]->getAttribute('file') ];
if ($returnmoddedxml) {
$disknode->parentNode->removeChild($disknode);
}
}
} elsif ($spec =~ /^d(.*)/) { #delete by scsi unit number..
my $loc = $1;
my $addr = $disknode->findnodes('./address')->[0];
if ($loc =~ /:/) { #controller, bus, unit
my $controller;
my $bus;
my $unit;
($controller, $bus, $unit) = split /:/, $loc;
if (hex($addr->getAttribute('controller')) == hex($controller) and ($addr->getAttribute('bus')) == hex($bus) and ($addr->getAttribute('unit')) == hex($unit)) {
push @returnxmls, [ $disknode->toString(), $disknode->findnodes('./source')->[0]->getAttribute('file') ];
if ($returnmoddedxml) {
$disknode->parentNode->removeChild($disknode);
}
}
} else { #match just on unit number, not helpful on ide as much generally, but whatever
if (hex($addr->getAttribute('unit')) == hex($loc)) {
push @returnxmls, [ $disknode->toString(), $disknode->findnodes('./source')->[0]->getAttribute('file') ];
if ($returnmoddedxml) {
$disknode->parentNode->removeChild($disknode);
}
}
}
} elsif ($spec =~ /^v(.*)/) { #virtio pci selector
my $slot = $1;
$slot =~ s/^(.*)://; #remove pci bus number (not used for now)
my $bus = $1;
$slot =~ s/\.0$//;
my $addr = $disknode->findnodes('./address')->[0];
if (hex($addr->getAttribute('slot')) == hex($slot) and hex($addr->getAttribute('bus') == hex($bus))) {
push @returnxmls, [ $disknode->toString(), $disknode->findnodes('./source')->[0]->getAttribute('file') ];
if ($returnmoddedxml) {
$disknode->parentNode->removeChild($disknode);
}
}
} #other formats TBD
}
}
if ($returnmoddedxml) { #there are list entries to delete
unshift @returnxmls, $dominf->toString();
}
return @returnxmls;
}
sub promote_vm_to_master {
my %args = @_;
my $target = $args{target};
my $force = $args{force};
my $detach = $args{detach};
if ($target !~ m!://!) { #if not a url, use same place as source
my $sourcedir = $confdata->{vm}->{$node}->[0]->{storage};
$sourcedir =~ s/=.*//;
$sourcedir =~ s/,.*//;
$sourcedir =~ s!/\z!!;
$target = $sourcedir . "/" . $target;
}
unless ($target =~ /^nfs:\/\//) {
my $rsp;
push @{ $rsp->{data} }, "VM cloning is only supported for nfs server vmstorage attribute. Current setting is $target";
xCAT::MsgUtils->message('E', $rsp, $callback);
return;
}
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
if ($dom and not $force) {
xCAT::SvrUtils::sendmsg([ 1, "VM shut be shut down before attempting to clone (-f to copy unclean disks)" ], $callback, $node);
return;
}
my $xml;
if ($dom) {
$xml = $dom->get_xml_description();
$detach = 1; #can't rebase if vm is on
} else {
$xml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
}
unless ($xml) {
xCAT::SvrUtils::sendmsg([ 1, "VM must be created before it can be cloned" ], $callback, $node);
return;
}
my $parsedxml = $parser->parse_string($xml);
my ($tmpnod) = $parsedxml->findnodes('/domain/uuid/text()');
if ($tmpnod) {
$tmpnod->setData("none"); #get rid of the VM specific uuid
}
$target =~ m!^(.*)/([^/]*)\z!;
my $directory = $1;
my $mastername = $2;
($tmpnod) = $parsedxml->findnodes('/domain/name/text()');
if ($tmpnod) {
$tmpnod->setData($mastername); #name the xml whatever the master name is to be
}
foreach ($parsedxml->findnodes("/domain/devices/interface/mac")) { #clear all mac addresses
if ($_->hasAttribute("address")) { $_->setAttribute("address" => ''); }
}
my $poolobj = get_storage_pool_by_url($directory);
unless ($poolobj) {
xCAT::SvrUtils::sendmsg([ 1, "Unable to reach $directory from hypervisor" ], $callback, $node);
return;
}
#arguments validated, on with our lives
#firrder of business, calculate all the image names to be created and ensure none will conflict.
my @disks = $parsedxml->findnodes('/domain/devices/disk/source');
my %volclonemap;
foreach (@disks) {
my $filename = $_->getAttribute('file');
my $volname = $filename;
$volname =~ s!.*/!!; #perl is greedy by default
$volname =~ s/^$node/$mastername/;
my $novol;
eval { #use two evals, there is a chance the pool has a task blocking refresh like long-running clone.... libvirt should do better IMO, oh well
$poolobj->refresh();
};
eval {
$novol = $poolobj->get_volume_by_name($volname);
};
if ($novol) {
xCAT::SvrUtils::sendmsg([ 1, "$volname already exists in target storage pool" ], $callback, $node);
return;
}
my $sourcevol;
eval {
$sourcevol = $hypconn->get_storage_volume_by_path($filename);
};
unless ($sourcevol) {
xCAT::SvrUtils::sendmsg([ 1, "Unable to access $filename to clone" ], $callback, $node);
return;
}
$volclonemap{$filename} = [ $sourcevol, $volname ];
$filename = get_path_for_pool($poolobj);
$filename =~ s!/\z!!;
$filename .= '/' . $volname;
$_->setAttribute(file => $filename);
}
foreach (keys %volclonemap) {
my $sourcevol = $volclonemap{$_}->[0];
my $targname = $volclonemap{$_}->[1];
my $format;
$targname =~ /([^\.]*)$/;
$format = $1;
my $newvol;
my %sourceinfo = %{ $sourcevol->get_info() };
my $targxml = "<volume><name>$targname</name><target><format type='$format'/></target><capacity>" . $sourceinfo{capacity} . "</capacity></volume>";
xCAT::SvrUtils::sendmsg("Cloning " . $sourcevol->get_name() . " (currently is " . ($sourceinfo{allocation} / 1048576) . " MB and has a capacity of " . ($sourceinfo{capacity} / 1048576) . "MB)", $callback, $node);
eval {
$newvol = $poolobj->clone_volume($targxml, $sourcevol);
};
if ($newvol) {
%sourceinfo = %{ $newvol->get_info() };
xCAT::SvrUtils::sendmsg("Cloning of " . $sourcevol->get_name() . " complete (clone uses " . ($sourceinfo{allocation} / 1048576) . " for a disk size of " . ($sourceinfo{capacity} / 1048576) . "MB)", $callback, $node);
unless ($detach) {
my $rebasepath = $sourcevol->get_path();
my $rebasename = $sourcevol->get_name();
my $rebasepool = get_storage_pool_by_volume($sourcevol);
unless ($rebasepool) {
xCAT::SvrUtils::sendmsg([ 1, "Skipping rebase of $rebasename, unable to find correct storage pool" ], $callback, $node);
next;
}
xCAT::SvrUtils::sendmsg("Rebasing $rebasename from master", $callback, $node);
$sourcevol->delete();
my $newbasexml = "<volume><name>$rebasename</name><target><format type='$format'/></target><capacity>" . $sourceinfo{capacity} . "</capacity><backingStore><path>" . $newvol->get_path() . "</path><format type='$format'/></backingStore></volume>";
my $newbasevol;
eval {
$newbasevol = $rebasepool->create_volume($newbasexml);
};
if ($newbasevol) {
xCAT::SvrUtils::sendmsg("Rebased $rebasename from master", $callback, $node);
} else {
xCAT::SvrUtils::sendmsg([ 1, "Critical failure, rebasing process failed halfway through, source VM trashed" ], $callback, $node);
}
}
} else {
xCAT::SvrUtils::sendmsg([ 1, "Cloning of " . $sourcevol->get_name() . " failed due to " . $@ ], $callback, $node);
return;
}
}
my $mastertabentry = {};
foreach (qw/os arch profile/) {
if (defined($confdata->{nodetype}->{$node}->[0]->{$_})) {
$mastertabentry->{$_} = $confdata->{nodetype}->{$node}->[0]->{$_};
}
}
foreach (qw/storagemodel nics/) {
if (defined($confdata->{vm}->{$node}->[0]->{$_})) {
$mastertabentry->{$_} = $confdata->{vm}->{$node}->[0]->{$_};
}
}
$mastertabentry->{storage} = $directory;
$mastertabentry->{vintage} = localtime;
$mastertabentry->{originator} = $requester;
unless ($detach) {
$updatetable->{vm}->{$node}->{master} = $mastername;
}
$updatetable->{vmmaster}->{$mastername} = $mastertabentry;
$updatetable->{kvm_masterdata}->{$mastername}->{xml} = $parsedxml->toString();
}
sub clonevm {
shift; #throw away node
@ARGV = @_;
my $target;
my $base;
my $detach;
my $force;
GetOptions(
'f' => \$force,
'b=s' => \$base,
't=s' => \$target,
'd' => \$detach,
);
if ($base and $target) {
xCAT::SvrUtils::sendmsg([ 1, "Cannot specify both base (-b) and target (-t)" ], $callback, $node);
return;
}
if ($target) { #we need to take a single vm and create a master out of it
return promote_vm_to_master(target => $target, force => $force, detach => $detach);
} elsif ($base) {
return clone_vm_from_master(base => $base, detach => $detach);
}
}
sub clone_vm_from_master {
my %args = @_;
my $base = $args{base};
my $detach = $args{detach};
my $vmmastertab = xCAT::Table->new('vmmaster', -create => 0);
my $kvmmastertab = xCAT::Table->new('kvm_masterdata', -create => 0);
unless ($vmmastertab and $kvmmastertab) {
xCAT::SvrUtils::sendmsg([ 1, "No KVM master images in tables" ], $callback, $node);
return;
}
my $mastername = $base;
$mastername =~ s!.*/!!; #shouldn't be needed, as storage is in there, but just in case
my $masteref = $vmmastertab->getAttribs({ name => $mastername }, [qw/os arch profile storage storagemodel nics/]);
my $kvmmasteref = $kvmmastertab->getAttribs({ name => $mastername }, ['xml']);
unless ($masteref and $kvmmasteref) {
xCAT::SvrUtils::sendmsg([ 1, "KVM master $mastername not found in tables" ], $callback, $node);
return;
}
my $newnodexml = $parser->parse_string($kvmmasteref->{xml});
$newnodexml->findnodes("/domain/name/text()")->[0]->setData($node); #set name correctly
my $uuid = getNodeUUID($node);
$newnodexml->findnodes("/domain/uuid/text()")->[0]->setData($uuid); #put in correct uuid
#set up mac addresses and such right...
fixup_clone_network(mastername => $mastername, mastertableentry => $masteref, kvmmastertableentry => $kvmmasteref, xmlinprogress => $newnodexml);
#ok, now the fun part, storage...
my $disk;
if ($masteref->{storage}) {
foreach (split /,/, $masteref->{storage}) {
s/=.*//;
get_storage_pool_by_url($_);
}
}
my $url;
if ($confdata->{vm}->{$node}->[0]->{storage}) {
unless ($confdata->{vm}->{$node}->[0]->{storage} =~ /^nfs:/) {
die "not implemented";
}
$url = $confdata->{vm}->{$node}->[0]->{storage};
} else {
$url = $masteref->{storage};
$updatetable->{vm}->{$node}->{storage} = $url;
}
if ($masteref->{storagemodel} and not $confdata->{vm}->{$node}->[0]->{storagemodel}) {
$updatetable->{vm}->{$node}->{storagemodel} = $masteref->{storagemodel};
}
$url =~ s/,.*//;
my $destinationpool = get_storage_pool_by_url($url);
foreach $disk ($newnodexml->findnodes("/domain/devices/disk")) {
my ($source) = ($disk->findnodes("./source"));
unless ($source) { next; } #most likely an empty cdrom
my $srcfilename = $source->getAttribute("file");
my $filename = $srcfilename;
$filename =~ s/^.*$mastername/$node/;
$filename =~ m!\.([^\.]*)\z!;
my $format = $1;
my $newvol;
if ($detach) {
my $sourcevol = $hypconn->get_storage_volume_by_path($srcfilename);
my %sourceinfo = %{ $sourcevol->get_info() };
my $targxml = "<volume><name>$filename</name><target><format type='$format'/></target><capacity>" . $sourceinfo{capacity} . "</capacity></volume>";
xCAT::SvrUtils::sendmsg("Cloning " . $sourcevol->get_name() . " (currently is " . ($sourceinfo{allocation} / 1048576) . " MB and has a capacity of " . ($sourceinfo{capacity} / 1048576) . "MB)", $callback, $node);
eval {
$newvol = $destinationpool->clone_volume($targxml, $sourcevol);
};
if ($@) {
if ($@ =~ /already exists/) {
return 1, "Storage creation request conflicts with existing file(s)";
} else {
return 1, "Unknown issue $@";
}
}
} else {
my $sourcevol = $hypconn->get_storage_volume_by_path($srcfilename);
my %sourceinfo = %{ $sourcevol->get_info() };
my $newbasexml = "<volume><name>$filename</name><target><format type='$format'/></target><capacity>" . $sourceinfo{capacity} . "</capacity><backingStore><path>$srcfilename</path><format type='$format'/></backingStore></volume>";
eval {
$newvol = $destinationpool->create_volume($newbasexml);
};
if ($@) {
if ($@ =~ /already in use/) {
return 1, "Storage creation request conflicts with existing file(s)";
} else {
return 1, "Unknown issue $@";
}
}
$updatetable->{vm}->{$node}->{master} = $mastername;
}
my $newfilename = $newvol->get_path();
$disk->findnodes("./source")->[0]->setAttribute("file" => $newfilename);
if (not $detach) { #if we are a copied image, enable writethrough cache in order to reduce trips out to disk
#but if the format is not qcow2, still leave it at 'none'
my $type = $disk->findnodes("./driver")->[0]->getAttribute("type");
if ($type eq "qcow2") { $disk->findnodes("./driver")->[0]->setAttribute("cache" => "writethrough"); }
}
}
my $textxml = $newnodexml->toString();
$updatetable->{kvm_nodedata}->{$node}->{xml} = $textxml;
}
sub fixup_clone_network {
my %args = @_;
my $newnodexml = $args{xmlinprogress};
my $mastername = $args{mastername};
my $masteref = $args{mastertableentry};
my $kvmmasteref = $args{kvmmastertableentry};
unless (ref($confdata->{vm}->{$node})) {
$confdata->{vm}->{$node} = [ { nics => $masteref->{nics} } ];
$updatetable->{vm}->{$node}->{nics} = $masteref->{nics};
}
unless ($confdata->{vm}->{$node}->[0]->{nics}) { #if no nic configuration yet, take the one stored in the master
$confdata->{vm}->{$node}->[0]->{nics} = $masteref->{nics};
$updatetable->{vm}->{$node}->{nics} = $masteref->{nics};
}
my @nics;
if ($confdata->{vm}->{$node}->[0]->{nics}) { #could still be empty if it came from master that way
@nics = split /,/, $confdata->{vm}->{$node}->[0]->{nics};
}
my @nicsinmaster = $newnodexml->findnodes("/domain/devices/interface");
if (scalar @nicsinmaster > scalar @nics) { #we don't have enough places to attach nics to..
xCAT::SvrUtils::sendmsg([ 1, "KVM master $mastername has " . scalar @nicsinmaster . " but this vm only has " . scalar @nics . " defined" ], $callback, $node);
return;
}
my $nicstruct;
my @macs = xCAT::VMCommon::getMacAddresses($confdata, $node, scalar @nics);
foreach $nicstruct (@nicsinmaster) {
my $bridge = shift @nics;
$bridge =~ s/.*://;
$bridge =~ s/=.*//;
$nicstruct->findnodes("./mac")->[0]->setAttribute("address" => shift @macs);
$nicstruct->findnodes("./source")->[0]->setAttribute("bridge" => $bridge);
}
my $nic;
my $deviceroot = $newnodexml->findnodes("/domain/devices")->[0];
foreach $nic (@nics) { #need more xml to throw at it..
my $type = 'virtio'; #better default fake nic than rtl8139, relevant to most
$nic =~ s/.*://; #the detail of how the bridge was built is of no
#interest to this segment of code
if ($confdata->{vm}->{$node}->[0]->{nicmodel}) {
$type = $confdata->{vm}->{$node}->[0]->{nicmodel};
}
if ($nic =~ /=/) {
($nic, $type) = split /=/, $nic, 2;
}
my $xmlsnippet = "<interface type='bridge'><mac address='" . (shift @macs) . "'/><source bridge='" . $nic . "'/><model type='$type'/></interface>";
my $chunk = $parser->parse_balanced_chunk($xmlsnippet);
$deviceroot->appendChild($chunk);
}
}
sub mkvm {
shift; #Throw away first argument
@ARGV = @_;
my $disksize;
my $mastername;
my $force = 0;
require Getopt::Long;
my $memory;
my $cpucount;
my $errstr;
GetOptions(
'master|m=s' => \$mastername,
'size|s=s' => \$disksize,
"mem=s" => \$memory,
"cpus=s" => \$cpucount,
'force|f' => \$force
);
if (defined $confdata->{vm}->{$node}->[0]->{othersettings}) {
my $vmothersettings = $confdata->{vm}->{$node}->[0]->{othersettings};
if ($vmothersettings =~ /nodefromrscan/) {
return 1, "this node was defined through rscan, 'mkvm' is not supported.";
}
}
if (defined $confdata->{vm}->{$node}->[0]->{storage}) {
my $diskname = $confdata->{vm}->{$node}->[0]->{storage};
if ($diskname =~ /^phy:/) { #in this case, mkvm should have no argumens
if ($mastername or $disksize) {
return 1, "mkvm management of block device storage not implemented";
}
}
#print "force=$force\n";
my @return;
if ($mastername or $disksize) {
eval {
@return = createstorage($diskname, $mastername, $disksize, $confdata->{vm}->{$node}->[0], $force);
};
if ($@) {
if ($@ =~ /Path (\S+) already exists at /) {
return 1, "Storage creation request conflicts with existing file(s) $1. To force remove the existing storage file, rerun mkvm with the -f option.";
} else {
return 1, "Unknown issue $@";
}
}
unless ($confdata->{kvmnodedata}->{$node} and $confdata->{kvmnodedata}->{$node}->[0] and $confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
my $xml;
($xml, $errstr) = build_xmldesc($node, cpus => $cpucount, memory => $memory);
if ($errstr) {
# The caller splits the error message on ":", prepend ":" so that if actual
# error message contains ":" it will not be split in the middle
return (1, ":" . $errstr);
}
$updatetable->{kvm_nodedata}->{$node}->{xml} = $xml;
}
}
my $xml;
if ($confdata->{kvmnodedata}->{$node} and $confdata->{kvmnodedata}->{$node}->[0] and $confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
$xml = $confdata->{kvmnodedata}->{$node}->[0]->{xml};
} else { # ($confdata->{kvmnodedata}->{$node} and $confdata->{kvmnodedata}->{$node}->[0] and $confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
($xml, $errstr) = build_xmldesc($node, cpus => $cpucount, memory => $memory);
if ($errstr) {
# The caller splits the error message on ":", prepend ":" so that if actual
# error message contains ":" it will not be split in the middle
return (1, ":" . $errstr);
}
$updatetable->{kvm_nodedata}->{$node}->{xml} = $xml;
}
if ($::XCATSITEVALS{persistkvmguests}) {
$hypconn->define_domain($xml);
}
return @return;
} else {
if ($mastername or $disksize) {
return 1, "Requested initialization of storage, but vm.storage has no value for node";
}
}
}
sub power {
@ARGV = @_;
require Getopt::Long;
my $cdloc;
GetOptions('cdrom|iso|c|i=s' => \$cdloc);
my $subcommand = shift @ARGV;
my $retstring;
my $dom;
eval {
$dom = $hypconn->get_domain_by_name($node);
};
if ($subcommand eq "boot") {
my $currstate = getpowstate($dom);
$retstring = $currstate . " ";
if ($currstate eq "off") {
$subcommand = "on";
} elsif ($currstate eq "on") {
$subcommand = "reset";
}
}
my $errstr;
if ($subcommand eq 'on') {
unless ($dom) {
if ($use_xhrm) {
if (xhrm_satisfy($node, $hyp)) {
return (1, "Failure satisfying networking and storage requirements on $hyp for $node");
}
}
#TODO: here, storage validation is not necessarily performed, consequently, must explicitly do storage validation
#this worked before I started doing the offline xml store because every rpower on tried to rebuild
($dom, $errstr) = makedom($node, $cdloc);
if ($errstr) { return (1, $errstr); }
else {
$allnodestatus{$node} = $::STATUS_POWERING_ON;
}
} elsif (not $dom->is_active()) {
eval{
$dom->create();
};
if($@){
return (1, "Error: $@");
}
$allnodestatus{$node} = $::STATUS_POWERING_ON;
} else {
$retstring .= "$status_noop";
}
} elsif ($subcommand eq 'off') {
if ($dom) {
my $newxml = $dom->get_xml_description();
$updatetable->{kvm_nodedata}->{$node}->{xml} = $newxml;
if ($dom->is_active()) {
eval{
$dom->destroy();
};
if($@){
return (1, "Error: $@");
}
$allnodestatus{$node} = $::STATUS_POWERING_OFF;
}
undef $dom;
} else { $retstring .= "$status_noop"; }
} elsif ($subcommand eq 'softoff') {
if ($dom) {
my $newxml = $dom->get_xml_description();
$updatetable->{kvm_nodedata}->{$node}->{xml} = $newxml;
$dom->shutdown();
$allnodestatus{$node} = $::STATUS_POWERING_OFF;
} else { $retstring .= "$status_noop"; }
} elsif ($subcommand eq 'reset') {
if ($dom && $dom->is_active()) {
my $oldxml = $dom->get_xml_description();
my $newxml = reconfigvm($node, $oldxml);
#This *was* to be clever, but libvirt doesn't even frontend the capability, great...
unless ($newxml) { $newxml = $oldxml; } #TODO: remove this when the 'else' line can be sanely filled out
if ($newxml) { #need to destroy and repower..
$updatetable->{kvm_nodedata}->{$node}->{xml} = $newxml;
my $persist = $dom->is_persistent();
eval {$dom->destroy();};
if($@){
return (1, "Error: $@");
}
$allnodestatus{$node} = $::STATUS_POWERING_OFF;
if ($persist) { $dom->undefine(); }
undef $dom;
if ($use_xhrm) {
xhrm_satisfy($node, $hyp);
}
($dom, $errstr) = makedom($node, $cdloc, $newxml);
if ($errstr) { return (1, $errstr); }
else {
$allnodestatus{$node} = $::STATUS_POWERING_ON;
}
} else { #no changes, just restart the domain TODO when possible, stupid lack of feature...
}
$retstring .= "reset";
} else { $retstring .= "$status_noop"; }
} else {
unless ($subcommand =~ /^stat/) {
return (1, "Unsupported power directive '$subcommand'");
}
}
unless ($retstring =~ /reset/) {
$retstring = $retstring . getpowstate($dom);
}
return (0, $retstring);
}
sub rscan {
my $hyper = shift;
@ARGV = @_;
my ($write, $update, $create);
GetOptions(
'w' => \$write,
'u' => \$update,
'n' => \$create,
);
my @doms;
my $dom;
eval {
@doms = $hypconn->list_all_domains();
};
if ($@) {
xCAT::SvrUtils::sendmsg([ 1, "Unable to list all domains for $hyper: $@" ], $callback);
}
my %host2kvm;
my @displaymsg;
my $handle_vmtab;
$handle_vmtab = xCAT::Table->new("vm", -create => 1, -autocommit => 0);
if (!$handle_vmtab) {
xCAT::SvrUtils::sendmsg([ 1, "Can't open vm table" ], $callback, $hyper);
return;
}
#get existing 'node' and 'host' attributes in current vm table...
my %hash_vm2host;
my @vm_nodes_hosts = $handle_vmtab->getAllNodeAttribs([ 'node', 'host' ]);
foreach my $vm_node_host (@vm_nodes_hosts) {
$hash_vm2host{ $vm_node_host->{node} } = $vm_node_host->{host};
}
my @maxlength;
my @rscan_header = (
[ "type", "" ],
[ "name", "" ],
[ "hypervisor", "" ],
[ "id", "" ],
[ "cpu", "" ],
[ "memory", "" ],
[ "nic", "" ],
[ "disk", "" ]);
#operate every domain in current hypervisor
foreach $dom (@doms) {
my $name = $dom->get_name();
my $currxml = $dom->get_xml_description();
unless ($currxml) {
xCAT::SvrUtils::sendmsg([ 1, "fail to get the xml definition of $name" ], $callback, $hyper);
next;
}
my $domain = $parser->parse_string($currxml);
my ($uuid, $node, $vmcpus, $vmmemory, $vmnics, $vmstorage, $arch, $mac, $vmnicnicmodel);
my @uuidobj = $domain->findnodes("/domain/uuid");
if (@uuidobj) {
$uuid = $uuidobj[0]->to_literal;
$uuid =~ s/^(..)(..)(..)(..)-(..)(..)-(..)(..)/$4$3$2$1-$6$5-$8$7/;
}
my $type = $domain->findnodes("/domain")->[0]->getAttribute("type");
if (length($type) > $maxlength[0]) {
$maxlength[0] = length($type);
}
my @nodeobj = $domain->findnodes("/domain/name");
if (@nodeobj) {
$node = $nodeobj[0]->to_literal;
}
if (length($node) > $maxlength[1]) {
$maxlength[1] = length($node);
}
my $hypervisor = $hyper;
if (length($hypervisor) > $maxlength[2]) {
$maxlength[2] = length($hypervisor);
}
my $id = $domain->findnodes("/domain")->[0]->getAttribute("id");
if (length($id) > $maxlength[3]) {
$maxlength[3] = length($id);
}
my @vmcpusobj = $domain->findnodes("/domain/vcpu");
if (@vmcpusobj) {
$vmcpus = $vmcpusobj[0]->to_literal;
}
if (length($vmcpus) > $maxlength[4]) {
$maxlength[4] = length($vmcpus);
}
my @vmmemoryobj = $domain->findnodes("/domain/memory");
if (@vmmemoryobj) {
my $mem = $vmmemoryobj[0]->to_literal;
my $unit = $vmmemoryobj[0]->getAttribute("unit");
if (($unit eq "KiB") or ($unit eq "k")) {
$vmmemory = ($mem * 1024) / (1024 * 1024);
} elsif ($unit eq "KB") {
$vmmemory = ($mem * 1000) / (1024 * 1024);
} elsif (($unit eq "MiB") or ($unit eq "M")) {
$vmmemory = $mem;
} elsif ($unit eq "MB") {
$vmmemory = ($mem * 1000000) / (1024 * 1024);
} elsif (($unit eq "GiB") or ($unit eq "G")) {
$vmmemory = $mem * 1024;
} elsif ($unit eq "GB") {
$vmmemory = ($mem * 1000000000) / (1024 * 1024);
} elsif (($unit eq "TiB") or ($unit eq "T")) {
$vmmemory = $mem * 1024 * 1024;
} elsif ($unit eq "TB") {
$vmmemory = ($mem * 1000000000000) / (1024 * 1024);
} else {
$vmmemory = ($mem * 1024) / (1024 * 1024);
}
}
if (length($vmmemory) > $maxlength[5]) {
$maxlength[5] = length($vmmemory);
}
my @vmstoragediskobjs = $domain->findnodes("/domain/devices/disk");
foreach my $vmstoragediskobj (@vmstoragediskobjs) {
my ($vmstorage_file_obj, $vmstorage_block_obj);
if (($vmstoragediskobj->getAttribute("device") eq "disk") and ($vmstoragediskobj->getAttribute("type") eq "file")) {
my @vmstorageobj = $vmstoragediskobj->findnodes("./source");
if (@vmstorageobj) {
$vmstorage_file_obj = $vmstorageobj[0]->getAttribute("file");
}
$vmstorage .= "$vmstorage_file_obj,";
}
if (($vmstoragediskobj->getAttribute("device") eq "disk") and ($vmstoragediskobj->getAttribute("type") eq "block")) {
my @vmstorageobj = $vmstoragediskobj->findnodes("./source");
if (@vmstorageobj) {
$vmstorage_block_obj = $vmstorageobj[0]->getAttribute("dev");
}
$vmstorage .= "$vmstorage_block_obj,";
}
}
chop($vmstorage);
if (length($vmstorage) > $maxlength[7]) {
$maxlength[7] = length($vmstorage);
}
my @archobj = $domain->findnodes("/domain/os/type");
if (@archobj) {
$arch = $archobj[0]->getAttribute("arch");
}
my @interfaceobjs = $domain->findnodes("/domain/devices/interface");
foreach my $interfaceobj (@interfaceobjs) {
if (($interfaceobj->getAttribute("type")) eq "bridge") {
my ($vmnics_obj, $mac_obj, $vmnicnicmodel_obj);
my @vmnicsobj = $interfaceobj->findnodes("./source");
my @macobj = $interfaceobj->findnodes("./mac");
my @vmnicnicmodelobj = $interfaceobj->findnodes("./model");
if (@vmnicsobj) {
$vmnics_obj = $vmnicsobj[0]->getAttribute("bridge");
}
if (@macobj) {
$mac_obj = $macobj[0]->getAttribute("address");
}
if (@vmnicnicmodelobj) {
$vmnicnicmodel_obj = $vmnicnicmodelobj[0]->getAttribute("type");
}
$vmnics .= "$vmnics_obj,";
$mac .= "$mac_obj,";
$vmnicnicmodel .= "$vmnicnicmodel_obj,";
}
}
chop($vmnics);
chop($mac);
chop($vmnicnicmodel);
if (length($vmnics) > $maxlength[6]) {
$maxlength[6] = length($vmnics);
}
push @{ $host2kvm{$uuid} }, join(":", $type, $node, $hypervisor, $id, $vmcpus, $vmmemory, $vmnics, $vmstorage, $arch, $mac, $vmnicnicmodel);
if ($write) {
unless (exists $hash_vm2host{$node}) {
$updatetable->{vm}->{$node}->{host} = $hypervisor;
$updatetable->{vm}->{$node}->{storage} = $vmstorage;
$updatetable->{vm}->{$node}->{memory} = $vmmemory;
$updatetable->{vm}->{$node}->{cpus} = $vmcpus;
$updatetable->{vm}->{$node}->{nics} = $vmnics;
$updatetable->{vm}->{$node}->{nicmodel} = $vmnicnicmodel;
$updatetable->{vm}->{$node}->{othersettings} = "nodefromrscan";
$updatetable->{mac}->{$node}->{mac} = $mac;
$updatetable->{vpd}->{$node}->{uuid} = $uuid;
$updatetable->{nodelist}->{$node}->{groups} = "vm,all";
$updatetable->{nodetype}->{$node}->{arch} = $arch;
$updatetable->{nodehm}->{$node}->{mgt} = "kvm";
$updatetable->{nodehm}->{$node}->{serialport} = "0";
$updatetable->{nodehm}->{$node}->{serialspeed} = "115200";
$updatetable->{kvm_nodedata}->{$node}->{xml} = $currxml;
}
else {
if ($hash_vm2host{$node} eq $hypervisor) {
#mark this node to delete in 'vm' 'mac' vpd' 'nodelist' 'nodetype' 'nodehm' tables
$updatetable->{vm}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{vm}->{$node}->{host} = $hypervisor;
$updatetable->{vm}->{$node}->{storage} = $vmstorage;
$updatetable->{vm}->{$node}->{memory} = $vmmemory;
$updatetable->{vm}->{$node}->{cpus} = $vmcpus;
$updatetable->{vm}->{$node}->{nics} = $vmnics;
$updatetable->{vm}->{$node}->{nicmodel} = $vmnicnicmodel;
$updatetable->{vm}->{$node}->{othersettings} = "nodefromrscan";
$updatetable->{mac}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{mac}->{$node}->{mac} = $mac;
$updatetable->{vpd}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{vpd}->{$node}->{uuid} = $uuid;
$updatetable->{nodelist}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodelist}->{$node}->{groups} = "vm,all";
$updatetable->{nodetype}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodetype}->{$node}->{arch} = $arch;
$updatetable->{nodehm}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodehm}->{$node}->{mgt} = "kvm";
$updatetable->{nodehm}->{$node}->{serialport} = "0";
$updatetable->{nodehm}->{$node}->{serialspeed} = "115200";
$updatetable->{kvm_nodedata}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $currxml;
}
else {
$callback->({ data => "the name of KVM guest $node on $hypervisor conflicts with the existing node in xCAT table." });
}
}
}
if ($update) {
if ((exists $hash_vm2host{$node}) and ($hash_vm2host{$node} eq $hypervisor)) {
$updatetable->{vm}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{vm}->{$node}->{host} = $hypervisor;
$updatetable->{vm}->{$node}->{storage} = $vmstorage;
$updatetable->{vm}->{$node}->{memory} = $vmmemory;
$updatetable->{vm}->{$node}->{cpus} = $vmcpus;
$updatetable->{vm}->{$node}->{nics} = $vmnics;
$updatetable->{vm}->{$node}->{nicmodel} = $vmnicnicmodel;
$updatetable->{vm}->{$node}->{othersettings} = "nodefromrscan";
$updatetable->{mac}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{mac}->{$node}->{mac} = $mac;
$updatetable->{vpd}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{vpd}->{$node}->{uuid} = $uuid;
$updatetable->{nodelist}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodelist}->{$node}->{groups} = "vm,all";
$updatetable->{nodetype}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodetype}->{$node}->{arch} = $arch;
$updatetable->{nodehm}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{nodehm}->{$node}->{mgt} = "kvm";
$updatetable->{nodehm}->{$node}->{serialport} = "0";
$updatetable->{nodehm}->{$node}->{serialspeed} = "115200";
$updatetable->{kvm_nodedata}->{'!*XCATNODESTODELETE*!'}->{$node} = $node;
$updatetable->{kvm_nodedata}->{$node}->{xml} = $currxml;
}
}
if ($create) {
unless (exists $hash_vm2host{$node}) {
$updatetable->{vm}->{$node}->{host} = $hypervisor;
$updatetable->{vm}->{$node}->{storage} = $vmstorage;
$updatetable->{vm}->{$node}->{memory} = $vmmemory;
$updatetable->{vm}->{$node}->{cpus} = $vmcpus;
$updatetable->{vm}->{$node}->{nics} = $vmnics;
$updatetable->{vm}->{$node}->{nicmodel} = $vmnicnicmodel;
$updatetable->{vm}->{$node}->{othersettings} = "nodefromrscan";
$updatetable->{mac}->{$node}->{mac} = $mac;
$updatetable->{vpd}->{$node}->{uuid} = $uuid;
$updatetable->{nodelist}->{$node}->{groups} = "vm,all";
$updatetable->{nodetype}->{$node}->{arch} = $arch;
$updatetable->{nodehm}->{$node}->{mgt} = "kvm";
$updatetable->{nodehm}->{$node}->{serialport} = "0";
$updatetable->{nodehm}->{$node}->{serialspeed} = "115200";
$updatetable->{kvm_nodedata}->{$node}->{xml} = $currxml;
}
}
}
if ((!$write) and (!$update) and (!$create)) {
my $header;
$rscan_header[0][1] = sprintf "%%-%ds", ($maxlength[0] + 3);
$rscan_header[1][1] = sprintf "%%-%ds", ($maxlength[1] + 3);
$rscan_header[2][1] = sprintf "%%-%ds", ($maxlength[2] + 3);
$rscan_header[3][1] = sprintf "%%-%ds", ($maxlength[3] + 3);
$rscan_header[4][1] = sprintf "%%-%ds", ($maxlength[4] + 3);
$rscan_header[5][1] = sprintf "%%-%ds", ($maxlength[5] + 3);
$rscan_header[6][1] = sprintf "%%-%ds", ($maxlength[6] + 3);
$rscan_header[7][1] = sprintf "%%-%ds", ($maxlength[7] + 3);
foreach (@rscan_header) {
$header .= sprintf(@$_[1], @$_[0]);
}
push @displaymsg, $header;
foreach (keys %host2kvm) {
my $entry;
my $host = $_;
my $i = 0;
my @data;
foreach (@{ $host2kvm{$host} }) {
my $info = $_;
foreach (split(':', $info)) {
my $attr = $_;
push @data, "$attr";
}
}
foreach (@rscan_header) {
$entry .= sprintf(@$_[1], $data[ $i++ ]);
}
push @displaymsg, $entry;
}
}
$callback->({ data => \@displaymsg });
return;
}
sub lsvm {
my $host = shift;
my $vm = shift;
my @doms = $hypconn->list_domains();
my @vms;
if ($host ne $vm) {
# Processing lsvm for a VM, display details about that VM
foreach (@doms) {
if ($_->get_name() eq $vm) {
push @vms, "Id:" . $_->get_id();
push @vms, "Host:" . $host;
push @vms, "OS:" . $_->get_os_type();
my $domain_info = $_->get_info();
if (exists $domain_info->{"memory"}) {
push @vms, "Memory:" . $domain_info->{"memory"};
}
if (exists $domain_info->{"nrVirtCpu"}) {
push @vms, "CPU: " . $domain_info->{"nrVirtCpu"};
}
if (exists $domain_info->{"state"}) {
my $state = $domain_info->{"state"};
my $state_string;
given($state) {
when ($state == &Sys::Virt::Domain::STATE_NOSTATE)
{$state_string = "The domain is active, but is not running / blocked (eg idle)";}
when ($state == &Sys::Virt::Domain::STATE_RUNNING)
{$state_string = "The domain is active and running";}
when ($state == &Sys::Virt::Domain::STATE_BLOCKED)
{$state_string = "The domain is active, but execution is blocked";}
when ($state == &Sys::Virt::Domain::STATE_PAUSED)
{$state_string = "The domain is active, but execution has been paused";}
when ($state == &Sys::Virt::Domain::STATE_SHUTDOWN)
{$state_string = "The domain is active, but in the shutdown phase";}
when ($state == &Sys::Virt::Domain::STATE_SHUTOFF)
{$state_string = "The domain is inactive, and shut down";}
when ($state == &Sys::Virt::Domain::STATE_CRUSHED)
{$state_string = "The domain is inactive, and crashed";}
when ($state == &Sys::Virt::Domain::STATE_PMSUSPENDED)
{$state_string = "The domain is active, but in power management suspend state";}
default {$state_string = "Unknown"};
}
push @vms, "State :" . $domain_info->{"state"} . " ($state_string)";
}
# The following block of code copied from rscan command processng for disks
my $currxml = $_->get_xml_description();
if ($currxml) {
my $domain = $parser->parse_string($currxml);
my @vmstoragediskobjs = $domain->findnodes("/domain/devices/disk");
foreach my $vmstoragediskobj (@vmstoragediskobjs) {
my ($vmstorage_file_obj, $vmstorage_block_obj);
if (($vmstoragediskobj->getAttribute("device") eq "disk") and ($vmstoragediskobj->getAttribute("type") eq "file")) {
my @vmstorageobj = $vmstoragediskobj->findnodes("./source");
if (@vmstorageobj) {
$vmstorage_file_obj = $vmstorageobj[0]->getAttribute("file");
push @vms, "Disk file:" . $vmstorage_file_obj;
}
}
if (($vmstoragediskobj->getAttribute("device") eq "disk") and ($vmstoragediskobj->getAttribute("type") eq "block")) {
my @vmstorageobj = $vmstoragediskobj->findnodes("./source");
if (@vmstorageobj) {
$vmstorage_block_obj = $vmstorageobj[0]->getAttribute("dev");
push @vms, "Disk object:" . $vmstorage_block_obj;
}
}
}
}
}
}
}
else {
# Processing lsvm for hypervisor, display a list of VMs on that hypervisor
foreach (@doms) {
push @vms, $_->get_name();
}
}
# Check if we were able to get any data
unless (@vms) {
push @vms, "Could not get any information about specified object";
}
return (0, @vms);
}
sub guestcmd {
$hyp = shift;
$node = shift;
my $command = shift;
my @args = @_;
my $error;
if ($command eq "rpower") {
return power(@args);
} elsif ($command eq "mkvm") {
return mkvm($node, @args);
} elsif ($command eq "clonevm") {
return clonevm($node, @args);
} elsif ($command eq "chvm") {
return chvm($node, @args);
} elsif ($command eq "rmvm") {
return rmvm($node, @args);
} elsif ($command eq "rinv") {
return rinv($node, @args);
} elsif ($command eq "rmigrate") {
return migrate($node, @args);
} elsif ($command eq "getrvidparms") {
return getrvidparms($node, @args);
} elsif ($command eq "getcons") {
return getcons($node, @args);
} elsif ($command eq "lsvm") {
return lsvm($hyp, $node, @args);
} elsif ($command eq "rscan") {
return rscan($node, @args);
}
return (1, "$command not a supported command by kvm method");
}
sub preprocess_request {
my $request = shift;
if ($request->{_xcatpreprocessed}->[0] == 1) { return [$request]; }
my $callback = shift;
my @requests;
my $noderange = $request->{node}; #Should be arrayref
my $command = $request->{command}->[0];
my $extrargs = $request->{arg};
my @exargs = ($request->{arg});
if (ref($extrargs)) {
@exargs = @$extrargs;
}
my $usage_string = xCAT::Usage->parseCommand($command, @exargs);
if ($usage_string) {
if ($command ne "rscan") {
$callback->({ data => $usage_string });
}
$request = {};
return;
}
if (!$noderange) {
$usage_string = xCAT::Usage->getUsage($command);
$callback->({ data => $usage_string });
$request = {};
return;
}
#print "noderange=@$noderange\n";
# find service nodes for requested nodes
# build an individual request for each service node
my $service = "xcat";
my $sn = xCAT::ServiceNodeUtils->get_ServiceNode($noderange, $service, "MN");
# build each request for each service node
foreach my $snkey (keys %$sn)
{
#print "snkey=$snkey\n";
my $reqcopy = {%$request};
$reqcopy->{node} = $sn->{$snkey};
$reqcopy->{'_xcatdest'} = $snkey;
$reqcopy->{_xcatpreprocessed}->[0] = 1;
push @requests, $reqcopy;
}
return \@requests;
}
sub adopt {
my $orphash = shift;
my $hyphash = shift;
my %addmemory = ();
my $node;
my $target;
my $vmupdates;
foreach $node (keys %{$orphash}) {
$target = pick_target($node, \%addmemory);
unless ($target) {
next;
}
if ($confdata->{vm}->{$node}->[0]->{memory}) {
$addmemory{$target} += getUnits($confdata->{vm}->{$node}->[0]->{memory}, "M", 1024);
} else {
$addmemory{$target} += getUnits("4096", "M", 1024);
}
$hyphash{$target}->{nodes}->{$node} = 1;
delete $orphash->{$node};
$vmupdates->{$node}->{host} = $target;
}
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 1); }
$vmtab->setNodesAttribs($vmupdates);
if (keys %{$orphash}) {
return 0;
} else {
return 1;
}
}
sub process_request {
$SIG{INT} = $SIG{TERM} = sub {
foreach (keys %vm_comm_pids) {
kill 2, $_;
}
exit 0;
};
unless ($parser) {
$parser = XML::LibXML->new();
}
%offlinehyps = ();
%hypstats = ();
%offlinevms = ();
my $request = shift;
if ($request->{_xcat_authname}->[0]) {
$requester = $request->{_xcat_authname}->[0];
}
$callback = shift;
require Sys::Virt;
if (xCAT::Utils::version_cmp(Sys::Virt->VERSION, "0.2.0") < 0) {
die;
}
require Sys::Virt::Domain;
%runningstates = (&Sys::Virt::Domain::STATE_NOSTATE => 1, &Sys::Virt::Domain::STATE_RUNNING => 1, &Sys::Virt::Domain::STATE_BLOCKED => 1);
$doreq = shift;
my $level = shift;
my $noderange = $request->{node};
my $command = $request->{command}->[0];
my @exargs;
unless ($command) {
return; #Empty request
}
if (ref($request->{arg})) {
@exargs = @{ $request->{arg} };
} else {
@exargs = ($request->{arg});
}
#pdu commands will be handled in the pdu plugin
if ($command eq "rpower" and grep(/^pduon|pduoff|pdureset|pdustat$/, @exargs)) {
return;
}
my $forcemode = 0;
my %orphans = ();
if ($command eq 'vmstatenotify') {
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 1); }
my $state = $exargs[0];
if ($state eq 'vmoff') {
$vmtab->setNodeAttribs($exargs[1], { powerstate => 'off' });
return;
} elsif ($state eq 'vmon') {
$vmtab->setNodeAttribs($exargs[1], { powerstate => 'on' });
return;
} elsif ($state eq 'hypshutdown') { #turn this into an evacuate
my $nodelisttab = xCAT::Table->new('nodelist');
my $appstatus = $nodelisttab->getNodeAttribs($noderange->[0], ['appstatus']);
my @apps = split /,/, $appstatus->{'appstatus'};
my @newapps;
foreach (@apps) {
if ($_ eq 'virtualization') { next; }
push @newapps, $_;
}
$nodelisttab->setNodeAttribs($noderange->[0], { appstatus => join(',', @newapps) });
$command = "revacuate";
@exargs = ();
} elsif ($state eq 'hypstartup') { #if starting up, check for nodes on this hypervisor and start them up
my $nodelisttab = xCAT::Table->new('nodelist');
my $appstatus = $nodelisttab->getNodeAttribs($noderange->[0], ['appstatus']);
my @apps = split /,/, $appstatus->{appstatus};
unless (grep { $_ eq 'virtualization' } @apps) {
push @apps, 'virtualization';
$nodelisttab->setNodeAttribs($noderange->[0], { appstatus => join(',', @apps) });
}
my @tents = $vmtab->getAttribs({ host => $noderange->[0], power => 'on' }, ['node']);
$noderange = [];
foreach (@tents) {
push @$noderange, noderange($_->{node});
}
$command = "rpower";
@exargs = ("on");
}
}
if ($command eq 'revacuate') {
my $newnoderange;
if (grep { $_ eq '-f' } @exargs) {
$forcemode = 1;
}
foreach (@$noderange) {
my $hyp = $_; #I used $_ too much here... sorry
$hypconn = undef;
push @destblacklist, $_;
if ((not $offlinehyps{$_}) and nodesockopen($_, 22)) {
eval { #Contain bugs that won't be in $@
$hypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $_ . "/system?no_tty=1&netcat=nc");
};
unless ($hypconn) { #retry for socat
eval { #Contain bugs that won't be in $@
$hypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $_ . "/system?no_tty=1");
};
}
}
unless ($hypconn) {
$offlinehyps{$hyp} = 1;
if ($forcemode) { #forcemode indicates the hypervisor is probably already dead, and to clear vm.host of all the nodes, and adopt the ones that are supposed to be 'on', power them on
unless ($vmtab) { $vmtab = new xCAT::Table('vm', -create => 0); }
unless ($vmtab) { next; }
my @vents = $vmtab->getAttribs({ host => $hyp }, [ 'node', 'powerstate' ]);
my $vent;
my $nodestozap;
foreach $vent (@vents) {
my @nodes = noderange($vent->{node});
if ($vent->{powerstate} eq 'on') {
foreach (@nodes) {
$offlinevms{$_} = 1;
$orphans{$_} = 1;
push @$newnoderange, $_;
}
}
push @$nodestozap, @nodes;
}
$vmtab->setNodesAttribs($nodestozap, { host => '|^.*$||' });
} else {
$callback->({ node => [ { name => [$_], error => ["Cannot communicate via libvirt to node"] } ] });
}
next;
}
if ($hypconn) {
foreach ($hypconn->list_domains()) {
my $guestname = $_->get_name();
if ($guestname eq 'Domain-0') {
next;
}
push @$newnoderange, $guestname;
}
}
}
$hypconn = undef;
$noderange = $newnoderange;
$command = 'rmigrate';
}
if ($::XCATSITEVALS{usexhrm}) { $use_xhrm = 1; }
$vmtab = xCAT::Table->new("vm");
$confdata = {};
unless ($command eq 'rscan') {
xCAT::VMCommon::grab_table_data($noderange, $confdata, $callback);
# Add debug info for issue 1958, the rmvm issue
my $test_file_fd;
open($test_file_fd, ">> $::XCATROOT//share/xcat/tools/autotest/result/$command.$$.rec");
print $test_file_fd "====================start==========================\n";
my $kvmdatatab = xCAT::Table->new("kvm_nodedata", -create => 0); #grab any pertinent pre-existing xml
if ($kvmdatatab) {
$confdata->{kvmnodedata} = $kvmdatatab->getNodesAttribs($noderange, [qw/xml/]);
print $test_file_fd Dumper($confdata->{kvmnodedata});
} else {
$confdata->{kvmnodedata} = {};
print $test_file_fd "***Error: Can not open kvm_nodedata table==\n";
}
print $test_file_fd "====================end==========================\n";
close $test_file_fd;
}
if ($command eq 'mkvm' or ($command eq 'clonevm' and (grep { "$_" eq '-b' } @exargs)) or ($command eq 'rpower' and (grep { "$_" eq "on" or $_ eq "boot" or $_ eq "reset" } @exargs))) {
xCAT::VMCommon::requestMacAddresses($confdata, $noderange);
my @dhcpnodes;
foreach (keys %{ $confdata->{dhcpneeded} }) {
push @dhcpnodes, $_;
delete $confdata->{dhcpneeded}->{$_};
}
unless ($::XCATSITEVALS{'dhcpsetup'} and ($::XCATSITEVALS{'dhcpsetup'} =~ /^n/i or $::XCATSITEVALS{'dhcpsetup'} =~ /^d/i or $::XCATSITEVALS{'dhcpsetup'} eq '0')) {
$doreq->({ command => ['makedhcp'], node => \@dhcpnodes });
}
}
if ($command eq 'revacuate' or $command eq 'rmigrate') {
$vmmaxp = 1; #for now throttle concurrent migrations, requires more sophisticated heuristics to ensure sanity
} else {
my $tmp;
if ($::XCATSITEVALS{vmmaxp}) { $vmmaxp = $::XCATSITEVALS{vmmaxp}; }
}
my $children = 0;
$SIG{CHLD} = sub { my $cpid; while (($cpid = waitpid(-1, WNOHANG)) > 0) { if ($vm_comm_pids{$cpid}) { delete $vm_comm_pids{$cpid}; $children--; } } };
my $inputs = new IO::Select;
my $sub_fds = new IO::Select;
%hyphash = ();
if ($command eq 'rscan') { #command intended for hypervisors, not guests
foreach (@$noderange) { $hyphash{$_}->{nodes}->{$_} = 1; }
} else {
foreach (keys %{ $confdata->{vm} }) {
if ($confdata->{vm}->{$_}->[0]->{host}) {
$hyphash{ $confdata->{vm}->{$_}->[0]->{host} }->{nodes}->{$_} = 1;
} else {
$orphans{$_} = 1;
}
}
}
if (keys %orphans) {
if ($command eq "rpower") {
if (grep /^on$/, @exargs or grep /^boot$/, @exargs) {
unless (adopt(\%orphans, \%hyphash)) {
$callback->({ error => "Can't find " . join(",", keys %orphans), errorcode => [1] });
return 1;
}
} else {
foreach (keys %orphans) {
$callback->({ node => [ { name => [$_], data => [ { contents => ['off'] } ] } ] });
}
}
} elsif ($command eq "rmigrate") {
if ($forcemode) {
unless (adopt(\%orphans, \%hyphash)) {
$callback->({ error => "Can't find " . join(",", keys %orphans), errorcode => [1] });
return 1;
}
} else {
$callback->({ error => "Can't find " . join(",", keys %orphans), errorcode => [1] });
return;
}
} elsif ($command eq "mkvm" or $command eq "clonevm") { #must adopt to create
unless (adopt(\%orphans, \%hyphash)) {
$callback->({ error => "Can't find " . join(",", keys %orphans), errorcode => [1] });
return 1;
}
#mkvm used to be able to happen devoid of any hypervisor, make a fake hypervisor entry to allow this to occur
#commenting that out for now
# foreach (keys %orphans) {
# $hyphash{'!@!XCATDUMMYHYPERVISOR!@!'}->{nodes}->{$_}=1;
# }
} elsif ($command eq "lsvm") {
# Special processing for lsvm command, which takes vm name or hypervisor name
unless (%hyphash) {
# if hyperhash has not been set already, we are processing vms, set it here
foreach (@$noderange) { $hyphash{$_}->{nodes}->{$_} = 1; }
}
} else {
$callback->({ error => "Can't find " . join(",", keys %orphans), errorcode => [1] });
return;
}
}
if ($command eq "rbeacon") {
my %req = ();
$req{command} = ['rbeacon'];
$req{arg} = \@exargs;
$req{node} = [ keys %hyphash ];
$doreq->(\%req, $callback);
return;
}
if ($::XCATSITEVALS{masterimgdir}) { $xCAT_plugin::kvm::masterdir = $::XCATSITEVALS{masterimgdir} }
foreach $hyp (sort (keys %hyphash)) {
while ($children > $vmmaxp) {
my $handlednodes = {};
forward_data($callback, $sub_fds, $handlednodes);
}
$children++;
my $cfd;
my $pfd;
socketpair($pfd, $cfd, AF_UNIX, SOCK_STREAM, PF_UNSPEC) or die "socketpair: $!";
$cfd->autoflush(1);
$pfd->autoflush(1);
my $cpid = xCAT::Utils->xfork;
unless (defined($cpid)) { die "Fork error"; }
unless ($cpid) {
close($cfd);
dohyp($pfd, $hyp, $command, -args => \@exargs);
exit(0);
}
$vm_comm_pids{$cpid} = 1;
close($pfd);
$sub_fds->add($cfd);
}
while ($sub_fds->count > 0) { # or $children > 0) { #if count is zero, even if we have live children, we can't possibly get data from them
my $handlednodes = {};
forward_data($callback, $sub_fds, $handlednodes);
}
#while (wait() > -1) { } #keep around just in case we find the absolute need to wait for children to be gone
#Make sure they get drained, this probably is overkill but shouldn't hurt
#my $rc=1;
#while ( $rc>0 ) {
# my $handlednodes={};
# $rc=forward_data($callback,$sub_fds,$handlednodes);
# #update the node status to the nodelist.status table
# if ($check) {
# updateNodeStatus($handlednodes, \@allerrornodes);
# }
#}
}
sub updateNodeStatus {
my $handlednodes = shift;
my $allerrornodes = shift;
foreach my $node (keys(%$handlednodes)) {
if ($handlednodes->{$node} == -1) { push(@$allerrornodes, $node); }
}
}
sub forward_data {
my $callback = shift;
my $fds = shift;
my $errornodes = shift;
my @ready_fds = $fds->can_read(1);
my $rfh;
my $rc = @ready_fds;
foreach $rfh (@ready_fds) {
my $data;
my $responses;
eval {
$responses = fd_retrieve($rfh);
};
if ($@ and $@ =~ /^Magic number checking on storable file/) { #this most likely means we ran over the end of available input
$fds->remove($rfh);
close($rfh);
} else {
eval { print $rfh "ACK\n"; }; #ignore failures to send inter-process ack
foreach (@$responses) {
#save the nodes that has errors and the ones that has no-op for use by the node status monitoring
my $no_op = 0;
if ($_->{node}->[0]->{errorcode}->[0]) { $no_op = 1; }
else {
my $text = $_->{node}->[0]->{data}->[0]->{contents}->[0];
#print "data:$text\n";
if (($text) && ($text =~ /$status_noop/)) {
$no_op = 1;
#remove the symbols that meant for use by node status
$_->{node}->[0]->{data}->[0]->{contents}->[0] =~ s/$status_noop//;
}
}
#print "data:". $_->{node}->[0]->{data}->[0]->{contents}->[0] . "\n";
if ($no_op) {
if ($errornodes) { $errornodes->{ $_->{node}->[0]->{name}->[0] } = -1; }
} else {
if ($errornodes) { $errornodes->{ $_->{node}->[0]->{name}->[0] } = 1; }
}
$callback->($_);
}
}
}
yield(); #Try to avoid useless iterations as much as possible
return $rc;
}
sub dohyp {
my $out = shift;
$hyp = shift;
my $command = shift;
my %namedargs = @_;
my @exargs = @{ $namedargs{-args} };
my $node;
my $args = \@exargs;
#$vmtab = xCAT::Table->new("vm");
$vmtab = undef;
unless ($offlinehyps{$hyp} or ($hyp eq '!@!XCATDUMMYHYPERVISOR!@!') or nodesockopen($hyp, 22)) {
$offlinehyps{$hyp} = 1;
}
eval { #Contain Sys::Virt bugs that make $@ useless
if ($hyp eq '!@!XCATDUMMYHYPERVISOR!@!') { #Fake connection for commands that have a fake hypervisor key
$hypconn = 1;
} elsif (not $offlinehyps{$hyp}) {
$hypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $hyp . "/system?no_tty=1&netcat=nc");
}
};
unless ($hypconn or $offlinehyps{$hyp}) {
eval { #Contain Sys::Virt bugs that make $@ useless
$hypconn = Sys::Virt->new(uri => "qemu+ssh://root@" . $hyp . "/system?no_tty=1");
};
}
unless ($hypconn) {
my %err = (node => []);
foreach (keys %{ $hyphash{$hyp}->{nodes} }) {
push(@{ $err{node} }, { name => [$_], error => ["Cannot communicate via libvirt to $hyp"], errorcode => [1] });
}
store_fd([ \%err ], $out);
yield();
waitforack($out);
%err = (node => []);
if ($command eq 'rmigrate' and grep { $_ eq '-f' } @$args) {
foreach (keys %{ $hyphash{$hyp}->{nodes} }) {
push(@{ $err{node} }, { name => [$_], error => ["Forcibly relocating VM from $hyp"], errorcode => [1] });
}
store_fd([ \%err ], $out);
} else {
return 1, "General error establishing libvirt communication";
}
}
if (($command =~ /^mkvm$|^chvm$|^rpower$|^lsvm$/) and $hypconn) {
my $nodeinfo = $hypconn->get_node_info();
if (exists($nodeinfo->{model})) {
$confdata->{$hyp}->{cpumodel} = $nodeinfo->{model};
if ($nodeinfo->{model} eq "ppc64") {
my $sysinfo = $hypconn->get_sysinfo();
if ($sysinfo) {
my $syshash = XMLin($sysinfo);
my $processor_content = $syshash->{processor}->[0]->{entry}->{type}->{content};
if ($processor_content =~ /POWER8/i) {
$confdata->{$hyp}->{cputype} = "power8";
$confdata->{$hyp}->{cpu_thread} = "8";
} elsif ($processor_content =~ /POWER7/i) {
$confdata->{$hyp}->{cputype} = "power7";
$confdata->{$hyp}->{cpu_thread} = "4";
} elsif ($processor_content =~ /POWER6/i) {
$confdata->{$hyp}->{cputype} = "power6";
$confdata->{$hyp}->{cpu_thread} = "2";
}
}
}
}
}
if ($command eq 'rpower') {
my $subcommand = $exargs[0];
if (($subcommand ne 'stat') && ($subcommand ne 'status')) {
%allnodestatus = ();
}
}
my %newnodestatus;
foreach $node (sort (keys %{ $hyphash{$hyp}->{nodes} })) {
unless ($confdata->{vm}->{$node}->[0]->{storagemodel}) {
# Storage model is not set, default to scsi for all architectures
$confdata->{vm}->{$node}->[0]->{storagemodel} = "scsi";
}
if ($confdata->{$hyp}->{cpu_thread}) {
$confdata->{vm}->{$node}->[0]->{cpu_thread} = $confdata->{$hyp}->{cpu_thread};
}
if ($confdata->{$hyp}->{cputype}) {
$confdata->{vm}->{$node}->[0]->{cputype} = $confdata->{$hyp}->{cputype};
}
my ($rc, @output) = guestcmd($hyp, $node, $command, @$args);
foreach (@output) {
my %output;
if (ref($_)) {
store_fd([$_], $out);
yield();
waitforack($out);
next;
}
(my $desc, my $text) = split(/:/, $_, 2);
unless ($text) {
$text = $desc;
} else {
$desc =~ s/^\s+//;
$desc =~ s/\s+$//;
if ($desc) {
if($rc == 0){
$output{node}->[0]->{data}->[0]->{desc}->[0] = $desc;
}
}
}
$text =~ s/^\s+//;
$text =~ s/\s+$//;
$output{node}->[0]->{errorcode} = [$rc];
$output{node}->[0]->{name}->[0] = $node;
if ($rc == 0) {
$output{node}->[0]->{data}->[0]->{contents}->[0] = $text;
} else {
$output{node}->[0]->{error}->[0] = $text;
}
if ($command eq 'rpower') {
if (!$rc and $text !~ /$status_noop/) {
if (%allnodestatus) {
push @{ $newnodestatus{ $allnodestatus{$node} } }, $node;
}
}
}
store_fd([ \%output ], $out);
yield();
waitforack($out);
}
yield();
}
if ($command eq 'rpower') {
xCAT_monitoring::monitorctrl::setNodeStatusAttributes(\%newnodestatus, 1);
}
foreach (keys %$updatetable) {
my $tabhandle = xCAT::Table->new($_, -create => 1);
my $updates = $updatetable->{$_};
if ($updates->{'!*XCATNODESTODELETE*!'}) {
my @delkeys;
foreach (keys %{ $updates->{'!*XCATNODESTODELETE*!'} }) {
if ($_) { push @delkeys, { node => $_ }; }
}
if (@delkeys) { $tabhandle->delEntries(\@delkeys); }
delete $updates->{'!*XCATNODESTODELETE*!'};
}
$tabhandle->setNodesAttribs($updatetable->{$_});
}
#my $msgtoparent=freeze(\@outhashes); # = XMLout(\%output,RootName => 'xcatresponse');
#print $out $msgtoparent; #$node.": $_\n";
}
# Return array of device names used by cdrom as defined in the kvm_nodedata table
sub get_cdrom_device_names() {
my $xml = shift;
my $device_name;
my @cdrom_device_names;
my $myxml = $parser->parse_string($xml);
my @alldisks = $myxml->findnodes("/domain/devices/disk");
# Look through all the disk entries defined in the xml
foreach my $disknode (@alldisks) {
my $devicetype = $disknode->getAttribute("device");
# Check if it is cdrom
if ($devicetype eq "cdrom") {
# Get name of the cdrom
$device_name = $disknode->findnodes('./target')->[0]->getAttribute('dev');
push @cdrom_device_names, $device_name;
}
}
return @cdrom_device_names;
}
1;