3150 lines
116 KiB
Perl
3150 lines
116 KiB
Perl
#!/usr/bin/env perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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package xCAT_plugin::kvm;
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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use xCAT::GlobalDef;
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use xCAT::NodeRange;
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use xCAT::VMCommon;
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use xCAT_monitoring::monitorctrl;
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use xCAT::Table;
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use xCAT::Usage;
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use XML::LibXML; #now that we are in the business of modifying xml data, need something capable of preserving more of the XML structure
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#TODO: convert all uses of XML::Simple to LibXML? Using both seems wasteful in a way..
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use XML::Simple qw(XMLout);
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use Thread qw(yield);
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use xCAT::Utils qw/genpassword/;
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use File::Basename qw/fileparse/;
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use File::Path qw/mkpath/;
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use IO::Socket;
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use IO::Select;
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use xCAT::TableUtils;
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use xCAT::ServiceNodeUtils;
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use strict;
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#use warnings;
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my $use_xhrm=0; #xCAT Hypervisor Resource Manager, to satisfy networking and storage prerequisites, default to not using it for the moment
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my $imgfmt='raw'; #use raw format by default
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my $clonemethod='qemu-img'; #use qemu-img command
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my %vm_comm_pids;
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my %offlinehyps;
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my %hypstats;
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my %offlinevms;
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my $parser;
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my @destblacklist;
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my $updatetable; #when a function is performing per-node operations, it can queue up a table update by populating parts of this hash
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my $confdata; #a reference to serve as a common pointer betweer VMCommon functions and this plugin
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my $libvirtsupport;
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$libvirtsupport = eval {
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require Sys::Virt;
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if (Sys::Virt->VERSION =~ /^0\.[10]\./) {
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die;
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}
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1;
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};
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use XML::Simple;
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$XML::Simple::PREFERRED_PARSER='XML::Parser';
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use Data::Dumper;
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use POSIX "WNOHANG";
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use Storable qw(freeze thaw store_fd fd_retrieve);
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use IO::Select;
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use IO::Handle;
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use Time::HiRes qw(gettimeofday sleep);
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use xCAT::DBobjUtils;
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use Getopt::Long;
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use xCAT::SvrUtils;
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my %runningstates;
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my $vmmaxp=64;
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my $mactab;
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my %usedmacs;
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my $status_noop="XXXno-opXXX";
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my $callback;
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my $requester; #used to track the user
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sub handled_commands {
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#unless ($libvirtsupport) {
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# return {};
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#}
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return {
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rpower => 'nodehm:power,mgt',
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mkvm => 'nodehm:power,mgt',
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clonevm => 'nodehm:power,mgt',
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chvm => 'nodehm:power,mgt',
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rmvm => 'nodehm:power,mgt',
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rinv => 'nodehm:power,mgt',
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rmigrate => 'nodehm:mgt',
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getcons => 'nodehm:mgt',
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#rvitals => 'nodehm:mgt',
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#rinv => 'nodehm:mgt',
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getrvidparms => 'nodehm:mgt',
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lsvm => 'hypervisor:type',
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rbeacon => 'nodehm:mgt',
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revacuate => 'hypervisor:type',
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vmstatenotify => 'hypervisor:type',
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#rspreset => 'nodehm:mgt',
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#rspconfig => 'nodehm:mgt',
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#rbootseq => 'nodehm:mgt',
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#reventlog => 'nodehm:mgt',
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};
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}
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my $hypconn;
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my $hyp;
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my $doreq;
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my %hyphash;
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my $node;
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my $vmtab;
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sub get_path_for_pool {
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my $poolobj =shift;
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my $poolxml = $poolobj->get_xml_description();
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my $pooldom = $parser->parse_string($poolxml);
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my @paths = $pooldom->findnodes("/pool/target/path/text()");
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if (scalar @paths != 1) {
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return undef;
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}
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return $paths[0]->data;
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}
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sub build_pool_xml {
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my $url = shift;
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my $pooldesc;
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my $name=$url;
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$name=~ s!nfs://!nfs_!;
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$name=~ s!dir://!dir_!;
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$name=~ s!lvm://!lvm_!;
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$name =~ s/\//_/g; #though libvirt considers / kosher, sometimes it wants to create a local xml file using name for filename...
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if ($url =~ /^dir:/) { #directory style..
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my $path=$url;
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$path =~ s/dir:\/\///g;
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return "<pool type=\"dir\"><name>$name</name><target><path>$path</path></target></pool>";
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} elsif ($url =~ /^lvm:\/\//) { #lvm specified
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my $path = $url;
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$path =~ s/^lvm:\/\///;
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$path =~ s/:(.*)\z//;
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my $volumes = $1;
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my $mount = "/dev/$path";
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my $xml = '<pool type="logical"><name>'.$path.'</name><target><path>'.$mount.'</path></target>';
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if ($volumes) {
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$xml .= "<source>";
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my @vols = split /,/,$volumes;
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foreach (@vols) {
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$xml .= '<device path="'.$_.'"/>';
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}
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$xml .= "</source>";
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}
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$xml .= "</pool>";
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return $xml;
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}
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my $mounthost = shift;
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unless ($mounthost) { $mounthost = $hyp; }
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my $pool;
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my $host = $url;
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$host =~ s/.*:\/\///;
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$host =~ s/(\/.*)//;
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my $srcpath = $1;
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my $uuid = xCAT::Utils::genUUID(url=>$url);
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#first, we make a pool desc that won't have slashes in them
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$pooldesc = '<pool type="netfs">';
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$pooldesc .= '<name>'.$name.'</name>';
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$pooldesc .= '<uuid>'.$uuid.'</uuid>>';
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$pooldesc .= '<source>';
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$pooldesc .= '<host name="'.$host.'"/>';
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$pooldesc .= '<dir path="'.$srcpath.'"/>';
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$pooldesc .= '</source>';
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$pooldesc .= '<target><path>/var/lib/xcat/pools/'.$uuid.'</path></target></pool>';
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#turns out we can 'define', then 'build', then 'create' on the poolobj instead of 'create', to get mkdir -p like function
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#system("ssh $mounthost mkdir -p /var/lib/xcat/pools/$uuid"); #ok, so not *technically* just building XML, but here is the cheapest
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#place to know uuid... And yes, we must be allowed to ssh in
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#libvirt just isn't capable enough for this sort of usage
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return $pooldesc;
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}
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sub get_storage_pool_by_url {
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my $url = shift;
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my $virtconn = shift;
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my $mounthost = shift;
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unless ($virtconn) { $virtconn = $hypconn; }
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my @currpools = $virtconn->list_storage_pools();
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push @currpools,$virtconn->list_defined_storage_pools();
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my $poolobj;
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my $pool;
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my $islvm=0;
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foreach my $poolo (@currpools) {
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$poolobj = $poolo;
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$pool = $parser->parse_string($poolobj->get_xml_description()); #XMLin($poolobj->get_xml_description());
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if ($url =~ /^nfs:\/\/([^\/]*)(\/.*)$/) { #check the essence of the pool rather than the name
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my $host=$1;
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my $path=$2;
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unless ($pool->findnodes("/pool")->[0]->getAttribute("type") eq "netfs") {
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$pool=undef;
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next;
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}
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#ok, it is netfs, now check source..
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my $checkhost = $pool->findnodes("/pool/source/host")->[0]->getAttribute("name");
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my $checkpath = $pool->findnodes("/pool/source/dir")->[0]->getAttribute("path");
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if ($checkhost eq $host and $checkpath eq $path) { #TODO: check name resolution to see if they match really even if not strictly the same
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last;
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}
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} elsif ($url =~ /^dir:\/\/(.*)\z/) { #a directory, simple enough
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my $path = $1;
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unless ($path =~ /^\//) {
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$path = '/'.$path;
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}
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$path =~ s/\/\z//; #delete trailing / if table specifies, a perfectly understable 'mistake'
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my $checkpath = $pool->findnodes("/pool/target/path/text()")->[0]->data;
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if ($checkpath eq $path) {
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last;
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}
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} elsif ($url =~ /^lvm:\/\/([^:]*)/) { #lvm volume group....
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my $vgname = $1;
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my $checkname = $pool->findnodes("/pool/name/text()")->[0]->data;
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if ($checkname eq $vgname) {
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$islvm=1;
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last;
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}
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} elsif ($pool->findnodes('/pool/name/text()')->[0]->data eq $url) { #$pool->{name} eq $url) {
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last;
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}
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$pool = undef;
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}
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if ($pool) {
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my $inf=$poolobj->get_info();
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if ($inf->{state} == 0) { #Sys::Virt::StoragePool::STATE_INACTIVE) { #if pool is currently inactive, bring it up
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unless ($islvm) { $poolobj->build(); } #if lvm and defined, it's almost certainly been built
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$poolobj->create();
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}
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eval { #we *try* to do this, but various things may interfere.
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#this is basically to make sure the list of contents is up to date
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$poolobj->refresh();
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};
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return $poolobj;
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}
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$poolobj = $virtconn->define_storage_pool(build_pool_xml($url,$mounthost));
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eval { $poolobj->build(); };
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if ($@) {
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my $error = $@;
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unless ($error =~ /vgcreate.*exit status 3/ or $error =~ /pvcreate.*exit status 5/) {
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die $@;
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}
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}
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$poolobj->create();
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eval { #wrap in eval, not likely to fail here, but calling it at all may be superfluous anyway
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$poolobj->refresh();
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};
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return $poolobj;
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}
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sub get_multiple_paths_by_url {
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my %args =@_;
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my $url = $args{url};
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my $node = $args{node};
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my $poolobj = get_storage_pool_by_url($url);
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unless ($poolobj) { die "Cound not get storage pool for $url"; }
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eval { #refresh() can 'die' if cloning in progress, accept stale data then
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$poolobj->refresh(); #if volumes change on nfs storage, libvirt is too dumb to notice
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};
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my @volobjs = $poolobj->list_volumes();
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my %paths;
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foreach (@volobjs) {
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if ($_->get_name() =~ /^$node\.([^\.]*)\.([^\.]*)$/) {
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$paths{$_->get_path()} = {device=>$1,format=>$2};
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} elsif ($_->get_name() =~ /^$node\.([^\.]*)$/) {
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$paths{$_->get_path()} = {device=>$1,format=>'raw'};
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#this requires any current user of qcow2 to migrate, unfortunate to escape
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#a vulnerability where raw user could write malicious qcow2 to header
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#and use that to get at files on the hypervisor os with escalated privilege
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}
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}
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return \%paths;
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}
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sub get_filepath_by_url { #at the end of the day, the libvirt storage api gives the following capability:
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#mount, limited ls, and qemu-img
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#it does not frontend mkdir, and does not abstract away any nitty-gritty detail, you must know:
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#the real mountpoint, and the real full path to storage
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#in addition to this, subdirectories are not allowed, and certain extra metadata must be created
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#not a big fan compared to ssh and run the commands myself, but it's the most straightforward path
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#to avoid ssh for users who dislike that style access
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my %args = @_;
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my $url = $args{url};
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my $dev = $args{dev};
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my $create = $args{create};
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my $force = $args{force};
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my $format = $args{format};
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my $sparse = 1;
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if ($url =~ /^lvm:/) {
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$sparse = 0;
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$format = 'raw';
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}
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unless ($format) {
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$format = 'qcow2';
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}
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#print "url=$url, dev=$dev,create=$create, force=$force, format=$format\n";
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#ok, now that we have the pool, we need the storage volume from the pool for the node/dev
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my $poolobj = get_storage_pool_by_url($url);
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unless ($poolobj) { die "Could not get storage pool for $url"; }
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eval { #make a refresh attempt non-fatal to fail, since cloning can block it
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$poolobj->refresh(); #if volumes change on nfs storage, libvirt is too dumb to notice
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};
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my @volobjs = $poolobj->list_volumes();
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my $desiredname = $node.'.'.$dev.'.'.$format;
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#print "desiredname=$desiredname, volobjs=@volobjs\n";
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foreach (@volobjs) {
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if ($_->get_name() eq $desiredname) {
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if ($create) {
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if ($force) { #must destroy the storage
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$_->delete();
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} else {
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die "Path already exists";
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}
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} else {
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return $_->get_path();
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}
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}
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}
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if ($create) {
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if ($create =~ /^clone=(.*)$/) {
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my $src = $1;
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my $fmt='raw';
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if ($src =~ /\.qcow2$/) {
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$fmt='qcow2';
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}
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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>");
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#ok, this is simply hinting, not the real deal, so to speak
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# 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
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# and warrants recheck with the RHEL6 stack
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# 2) create_volume with backingStore is how we do the clone from master (i.e. a thin clone, a la qemu-img create)
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# note how backing store is full path, allowing cross-pool clones
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# 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
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# incidentally, promote to master will be relatively expensive compared to the converse operation, as expected
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# will have to verify as it is investigated whether this can successfully cross pools (hope so)
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# 4) qemu-img was so much more transparent and easy to figure out than this
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# additionally, when mastering a powered down node, we should rebase the node to be a cow clone of the master it just spawned
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} else {
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my $vol;
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unless ($sparse) { #skip allocation specification for now
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#currently, LV can have reduced allocation, but *cannot* grow.....
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$vol = $poolobj->create_volume("<volume><name>".$desiredname."</name><target><format type='$format'/></target><capacity>".getUnits($create,"G",1)."</capacity></volume>");
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} else {
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$vol = $poolobj->create_volume("<volume><name>".$desiredname."</name><target><format type='$format'/></target><capacity>".getUnits($create,"G",1)."</capacity><allocation>0</allocation></volume>");
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}
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if ($vol) { return $vol->get_path(); }
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}
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} else {
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return undef;
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}
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}
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sub nodesockopen {
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my $node = shift;
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my $port = shift;
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unless ($node) { return 0; }
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my $socket;
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my $addr = gethostbyname($node);
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my $sin = sockaddr_in($port,$addr);
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my $proto = getprotobyname('tcp');
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socket($socket,PF_INET,SOCK_STREAM,$proto) || return 0;
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connect($socket,$sin) || return 0;
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return 1;
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}
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sub waitforack {
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my $sock = shift;
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my $select = new IO::Select;
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$select->add($sock);
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my $str;
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if ($select->can_read(60)) { # Continue after 10 seconds, even if not acked...
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if ($str = <$sock>) {
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} else {
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$select->remove($sock); #Block until parent acks data
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}
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}
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}
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sub reconfigvm {
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$node=shift;
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my $xml = shift;
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my $domdesc = $parser->parse_string($xml);
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my @bootdevs = $domdesc->findnodes("/domain/os/boot");
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my $curroffset = $domdesc->findnodes("/domain/clock")->[0]->getAttribute("offset");
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my $newoffset;
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my $needfixin=0;
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if (defined ($confdata->{vm}->{$node}->[0]->{clockoffset})) {
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#If user requested a specific behavior, give it
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$newoffset = $confdata->{vm}->{$node}->[0]->{clockoffset};
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} else {
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#Otherwise, only do local time for things that look MS
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if (defined ($confdata->{nodetype}->{$node}->[0]->{os}) and $confdata->{nodetype}->{$node}->[0]->{os} =~ /win.*/) {
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$newoffset = 'localtime';
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} else { #For everyone else, utc is preferred generally
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$newoffset = 'utc';
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}
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}
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if ($curroffset ne $newoffset) {
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$needfixin=1;
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$domdesc->findnodes("/domain/clock")->[0]->setAttribute("offset",$newoffset);
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}
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my @oldbootdevs;
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if (defined $confdata->{vm}->{$node}->[0]->{memory}) {
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$needfixin=1;
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$domdesc->findnodes("/domain/memory/text()")->[0]->setData(getUnits($confdata->{vm}->{$node}->[0]->{memory},"M",1024));
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foreach ($domdesc->findnodes("/domain/currentMemory/text()")) {
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$_->setData(getUnits($confdata->{vm}->{$node}->[0]->{memory},"M",1024));
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}
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}
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if (defined $confdata->{vm}->{$node}->[0]->{vcpus}) {
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$needfixin=1;
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$domdesc->findnodes("/domain/vcpu/text()")->[0]->setData($confdata->{vm}->{$node}->[0]->{vcpus});
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}
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if (defined $confdata->{vm}->{$node}->[0]->{bootorder}) {
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my @expectedorder = split(/[:,]/,$confdata->{vm}->{$node}->[0]->{bootorder});
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foreach (@expectedorder) { #this loop will check for changes and fix 'n' and 'net'
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my $currdev = shift @bootdevs;
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if ("net" eq $_ or "n" eq $_) {
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$_ = "network";
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}
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unless ($currdev and $currdev->getAttribute("dev") eq $_) {
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$needfixin=1;
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}
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if ($currdev) {
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push @oldbootdevs,$currdev;
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}
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}
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if (scalar(@bootdevs)) {
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$needfixin=1;
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push @oldbootdevs,@bootdevs;
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}
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unless ($needfixin) { return 0; }
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#ok, we need to remove all 'boot' nodes from current xml, and put in new ones in the order we like
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foreach (@oldbootdevs) {
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$_->parentNode->removeChild($_);
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}
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#now to add what we want...
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my $osnode = $domdesc->findnodes("/domain/os")->[0];
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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';
|
|
$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) {
|
|
die "Unable to find any persistent disks at ".$disk_parts[0];
|
|
}
|
|
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 $cdprefix='hd';
|
|
if ($storagemodel eq 'virtio') {
|
|
$cdprefix='vd';
|
|
} elsif ($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 {
|
|
$xtree{memory}->{content}=524288;
|
|
}
|
|
if ($hypcpumodel eq "ppc64") {
|
|
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";
|
|
$xtree{devices}->{disk}=build_diskstruct($cdloc);
|
|
$xtree{devices}->{interface}=build_nicstruct($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";
|
|
} 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";
|
|
}
|
|
}
|
|
|
|
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;
|
|
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) {
|
|
$xml = build_xmldesc($node,cd=>$cdloc);
|
|
}
|
|
my $parseddom = $parser->parse_string($xml);
|
|
my ($graphics) = $parseddom->findnodes("//graphics");
|
|
if ($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();
|
|
my $errstr;
|
|
eval {
|
|
if ($::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 $diskstruct = shift;
|
|
my $node = $cfginfo->{node};
|
|
my @flags = split /,/,$cfginfo->{virtflags};
|
|
my $format;
|
|
foreach (@flags) {
|
|
if (/^imageformat=(.*)\z/) {
|
|
$format=$1;
|
|
} elsif (/^clonemethod=(.*)\z/) {
|
|
$clonemethod=$1;
|
|
}
|
|
}
|
|
if ($cfginfo->{storageformat}) {
|
|
$format = $cfginfo->{storageformat};
|
|
}
|
|
my $mountpath;
|
|
my $pathappend;
|
|
|
|
|
|
#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}->{$node}->[0]->{xml};
|
|
}
|
|
if ($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 $file = $disk->getAttribute("file");
|
|
my $vol = $hypconn->get_storage_volume_by_path($file);
|
|
if ($vol) {
|
|
$vol->delete();
|
|
}
|
|
}
|
|
}
|
|
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 $eject;
|
|
@ARGV=@_;
|
|
require Getopt::Long;
|
|
GetOptions(
|
|
"a=s"=>\@addsizes,
|
|
"d=s"=>\@derefdisks,
|
|
"mem|memory=s"=>\$memory,
|
|
"optical|dvd|cdrom=s"=>\$cdrom,
|
|
"eject"=>\$eject,
|
|
"cpus|cpu=s" => \$cpucount,
|
|
"p=s"=>\@purge,
|
|
"resize=s%" => \%resize,
|
|
);
|
|
if (@derefdisks) {
|
|
xCAT::SvrUtils::sendmsg([1,"Detach without purge TODO for kvm"],$callback,$node);
|
|
return;
|
|
}
|
|
if (@addsizes and @purge) {
|
|
xCAT::SvrUtils::sendmsg([1,"Currently adding and purging concurrently is not supported"],$callback,$node);
|
|
return;
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (@addsizes) { #need to add disks, first identify used devnames
|
|
my @diskstoadd;
|
|
my $location = $confdata->{vm}->{$node}->[0]->{storage};
|
|
$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 /,/,$_;
|
|
}
|
|
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=>$dev,create=>$_);
|
|
}
|
|
#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}=$vmxml;
|
|
}
|
|
}
|
|
if ($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;
|
|
}
|
|
}
|
|
|
|
}
|
|
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:\/\//) {
|
|
xCAT::SvrUtils::sendmsg([1,"KVM plugin only has nfs://<server>/<path>/<mastername> support for cloning at this moment"], $callback,$node);
|
|
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; #Throuw away first argument
|
|
@ARGV=@_;
|
|
my $disksize;
|
|
my $mastername;
|
|
my $force=0;
|
|
require Getopt::Long;
|
|
my $memory;
|
|
my $cpucount;
|
|
GetOptions(
|
|
'master|m=s'=>\$mastername,
|
|
'size|s=s'=>\$disksize,
|
|
"mem=s"=>\$memory,
|
|
"cpus=s" => \$cpucount,
|
|
'force|f'=>\$force
|
|
);
|
|
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 ($@ =~ /ath already exists/) {
|
|
return 1,"Storage creation request conflicts with existing file(s)";
|
|
} else {
|
|
return 1,"Unknown issue $@";
|
|
}
|
|
}
|
|
|
|
unless ($confdata->{kvmnodedata}->{$node} and $confdata->{kvmnodedata}->{$node}->[0] and $confdata->{kvmnodedata}->{$node}->[0]->{xml}) {
|
|
my $xml;
|
|
$xml = build_xmldesc($node,cpus=>$cpucount,memory=>$memory);
|
|
$updatetable->{kvm_nodedata}->{$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}) {
|
|
$xml = build_xmldesc($node,cpus=>$cpucount,memory=>$memory);
|
|
$updatetable->{kvm_nodedata}->{$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); }
|
|
} elsif (not $dom->is_active()) {
|
|
$dom->create();
|
|
} 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()) {
|
|
$dom->destroy();
|
|
}
|
|
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();
|
|
} 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();
|
|
$dom->destroy();
|
|
if ($persist) { $dom->undefine(); }
|
|
undef $dom;
|
|
if ($use_xhrm) {
|
|
xhrm_satisfy($node,$hyp);
|
|
}
|
|
($dom,$errstr) = makedom($node,$cdloc,$newxml);
|
|
if ($errstr) { return (1,$errstr); }
|
|
} else { #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 lsvm {
|
|
my $node = shift;
|
|
my @doms = $hypconn->list_domains();
|
|
my @vms;
|
|
foreach (@doms) {
|
|
push @vms,$_->get_name();
|
|
}
|
|
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 ($command eq "lsvm") {
|
|
return lsvm($node,@args);
|
|
}
|
|
=cut
|
|
} elsif ($command eq "rvitals") {
|
|
return vitals(@args);
|
|
} elsif ($command =~ /r[ms]preset/) {
|
|
return resetmp(@args);
|
|
} elsif ($command eq "rspconfig") {
|
|
return mpaconfig($mpa,$user,$pass,$node,$slot,@args);
|
|
} elsif ($command eq "rbootseq") {
|
|
return bootseq(@args);
|
|
} elsif ($command eq "switchblade") {
|
|
return switchblade(@args);
|
|
} elsif ($command eq "getmacs") {
|
|
return getmacs(@args);
|
|
} elsif ($command eq "rinv") {
|
|
return inv(@args);
|
|
} elsif ($command eq "reventlog") {
|
|
return eventlog(@args);
|
|
} elsif ($command eq "rscan") {
|
|
return rscan(\@args);
|
|
}
|
|
|
|
=cut
|
|
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) {
|
|
$callback->({data=>$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("512","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];
|
|
}
|
|
$callback = shift;
|
|
unless ($libvirtsupport) {
|
|
$libvirtsupport = eval {
|
|
require Sys::Virt;
|
|
if ( xCAT::Utils::version_cmp(Sys::Virt->VERSION, "0.2.0") < 0 ) {
|
|
die;
|
|
}
|
|
1;
|
|
};
|
|
}
|
|
unless ($libvirtsupport) { #Still no Sys::Virt module
|
|
$callback->({error=>"Sys::Virt perl module missing or older than 0.2.0, unable to fulfill KVM plugin requirements",errorcode=>[42]});
|
|
return [];
|
|
}
|
|
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});
|
|
}
|
|
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 'lsvm') {
|
|
xCAT::VMCommon::grab_table_data($noderange,$confdata,$callback);
|
|
my $kvmdatatab = xCAT::Table->new("kvm_nodedata",-create=>0); #grab any pertinent pre-existing xml
|
|
if ($kvmdatatab) {
|
|
$confdata->{kvmnodedata} = $kvmdatatab->getNodesAttribs($noderange,[qw/xml/]);
|
|
} else {
|
|
$confdata->{kvmnodedata} = {};
|
|
}
|
|
}
|
|
if ($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 'lsvm') { #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;
|
|
# }
|
|
} 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;
|
|
}
|
|
|
|
#get new node status
|
|
my %oldnodestatus=(); #saves the old node status
|
|
my @allerrornodes=();
|
|
my $check=0;
|
|
my $global_check=1;
|
|
if ($::XCATSITEVALS{nodestatus} =~ /0|n|N/) { $global_check=0; }
|
|
|
|
|
|
if ($command eq 'rpower') {
|
|
my $subcommand=$exargs[0];
|
|
if (($global_check) && ($subcommand ne 'stat') && ($subcommand ne 'status')) {
|
|
$check=1;
|
|
my @allnodes=@$noderange;
|
|
|
|
#save the old status
|
|
my $nodelisttab = xCAT::Table->new('nodelist');
|
|
if ($nodelisttab) {
|
|
my $tabdata = $nodelisttab->getNodesAttribs(\@allnodes, ['node', 'status']);
|
|
foreach my $node (@allnodes)
|
|
{
|
|
my $tmp1 = $tabdata->{$node}->[0];
|
|
if ($tmp1) {
|
|
if ($tmp1->{status}) { $oldnodestatus{$node}=$tmp1->{status}; }
|
|
else { $oldnodestatus{$node}=""; }
|
|
}
|
|
}
|
|
}
|
|
#print "oldstatus:" . Dumper(\%oldnodestatus);
|
|
|
|
#set the new status to the nodelist.status
|
|
my %newnodestatus=();
|
|
my $newstat;
|
|
if (($subcommand eq 'off') || ($subcommand eq 'softoff')) {
|
|
my $newstat=$::STATUS_POWERING_OFF;
|
|
$newnodestatus{$newstat}=\@allnodes;
|
|
} else {
|
|
#get the current nodeset stat
|
|
if (@allnodes>0) {
|
|
my $nsh={};
|
|
my ($ret, $msg)=xCAT::SvrUtils->getNodesetStates(\@allnodes, $nsh);
|
|
if (!$ret) {
|
|
foreach (keys %$nsh) {
|
|
my $newstat=xCAT_monitoring::monitorctrl->getNodeStatusFromNodesetState($_, "rpower");
|
|
$newnodestatus{$newstat}=$nsh->{$_};
|
|
}
|
|
} else {
|
|
$callback->({data=>$msg});
|
|
}
|
|
}
|
|
}
|
|
#donot update node provision status (installing or netbooting) here
|
|
xCAT::Utils->filter_nostatusupdate(\%newnodestatus);
|
|
#print "newstatus" . Dumper(\%newnodestatus);
|
|
xCAT_monitoring::monitorctrl::setNodeStatusAttributes(\%newnodestatus, 1);
|
|
}
|
|
}
|
|
|
|
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);
|
|
#update the node status to the nodelist.status table
|
|
if ($check) {
|
|
updateNodeStatus($handlednodes, \@allerrornodes);
|
|
}
|
|
}
|
|
$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);
|
|
#update the node status to the nodelist.status table
|
|
if ($check) {
|
|
updateNodeStatus($handlednodes, \@allerrornodes);
|
|
}
|
|
}
|
|
#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);
|
|
# }
|
|
#}
|
|
|
|
if ($check) {
|
|
#print "allerrornodes=@allerrornodes\n";
|
|
#revert the status back for there is no-op for the nodes
|
|
my %old=();
|
|
foreach my $node (@allerrornodes) {
|
|
my $stat=$oldnodestatus{$node};
|
|
if (exists($old{$stat})) {
|
|
my $pa=$old{$stat};
|
|
push(@$pa, $node);
|
|
}
|
|
else {
|
|
$old{$stat}=[$node];
|
|
}
|
|
}
|
|
xCAT_monitoring::monitorctrl::setNodeStatusAttributes(\%old, 1);
|
|
}
|
|
}
|
|
|
|
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}) { $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 eq 'mkvm' or $command eq 'chvm') 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";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach $node (sort (keys %{$hyphash{$hyp}->{nodes}})) {
|
|
if ($confdata->{$hyp}->{cpumodel} and $confdata->{$hyp}->{cpumodel} =~ /ppc64/i) {
|
|
$confdata->{vm}->{$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) {
|
|
$output{node}->[0]->{data}->[0]->{desc}->[0]=$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} = $text;
|
|
}
|
|
store_fd([\%output],$out);
|
|
yield();
|
|
waitforack($out);
|
|
}
|
|
yield();
|
|
}
|
|
foreach (keys %$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";
|
|
}
|
|
|
|
1;
|