xcat-core/xCAT-server/lib/xcat/plugins/litetree.pm
linggao 54a3d48079 minor changes
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@8020 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
2010-11-03 15:37:12 +00:00

576 lines
15 KiB
Perl

package xCAT_plugin::litetree;
BEGIN
{
$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use lib "$::XCATROOT/lib/perl";
use xCAT::NodeRange;
use Data::Dumper;
use xCAT::Utils;
use Sys::Syslog;
use xCAT::GlobalDef;
use xCAT::Table;
use Getopt::Long;
use xCAT::SvrUtils;
Getopt::Long::Configure("bundling");
Getopt::Long::Configure("pass_through");
use strict;
# synchonize files and directories from mulitple sources.
# object is to return a list of files to be syncronized.
# requesting them. By default we will do read-write files.
my $syncdirTab = "litetree";
my $syncfileTab = "litefile";
my $synclocTab = "statelite";
my $errored = 0;
sub handled_commands {
# command is syncmount, syncdir is the perl module to use.
return {
litetree => "litetree",
litefile => "litetree",
ilitefile => "litetree",
lslite => "litetree"
}
}
sub usage {
my $command = shift;
my $callback = shift;
my $error = shift;
my $msg;
if($command eq "ilitefile"){
$msg = "Usage: ilitefile <imagename>
\texample:\n\tilitefile centos5.3-x86_64-statelite-compute"
} elsif($command eq "litefile") {
$msg = "Usage: litefile <noderange>\nexample:\n\tlitefile node1";
} elsif($command eq "litetree") {
$msg = "Usage: litetree <noderange>\nexample:\n\tlitetree node1";
} else{
$msg = "some general usage string";
}
if($error){
$callback->({error=>[$msg],errorcode=>[$error]});
}else{
$callback->({info=>[$msg]});
}
}
sub process_request {
my $request = shift;
my $callback = shift;
my $noderange;
my $image;
# the request can come from node or some one running command
# on xCAT mgmt server
# argument could also be image...
# if request comes from user:
if($request->{node}){
$noderange = $request->{node};
# if request comes from node post script .awk file.
}elsif($request->{'_xcat_clienthost'}){
my @nodenames = noderange($request->{'_xcat_clienthost'}->[0].",".$request->{'_xcat_clientfqdn'}->[0]);
if (@nodenames) {
$noderange = \@nodenames;
$request->{node} = $noderange;
}
}else{
$callback->({error=>["No node names are given, I cannot figure out who you are."],errorcode=>[1]});
return;
}
my $command = $request->{command}->[0];
if($command eq "litetree"){
unless($request->{node}) {
usage($command, $callback, 0);
return 1;
}
return syncmount("dir",$request,$callback,$noderange);
}elsif($command eq "litefile"){
unless($request->{node}) {
usage($command, $callback, 0);
return 1;
}
return syncmount("file",$request, $callback,$noderange);
}elsif($command eq "ilitefile"){
#print Dumper($request);
unless($request->{arg}){
usage($command, $callback, 0);
return 1;
}
return syncmount("image",$request, $callback,$request->{arg});
}elsif($command eq "lslite"){
if (defined $noderange)
{
&lslite($request, $callback, $noderange);
}
else
{
&lslite($request, $callback, undef);
}
return;
}else{
$callback->({error=>["error in code..."], errorcode=>[127]});
$request = {};
return;
}
}
sub syncmount {
my $syncType = shift;
my $request = shift;
my $callback = shift;
# deterimine which node is calling this
# then find out what directories to use.
my $noderange = shift;
my @nodes = @{$noderange};
my $tab;
if($syncType eq 'dir'){
$tab = xCAT::Table->new($syncdirTab,-create=>1);
}elsif($syncType =~ /file|image/ ){
$tab = xCAT::Table->new($syncfileTab,-create=>1);
}elsif($syncType =~ /location/){
$tab = xCAT::Table->new($synclocTab,-create=>1);
}else{
$callback->({error=>["error in code..."], errorcode=>[127]});
$request = {};
return;
}
my $ostab;
my %osents;
unless($syncType =~ /image/){
$ostab = xCAT::Table->new('nodetype');
%osents = %{$ostab->getNodesAttribs(\@nodes,['profile','os','arch','provmethod'])};
}
foreach my $node (@nodes){
# node may be an image...
my $image;
my $ent;
if($syncType !~ /image/){
$ent = $osents{$node}->[0];
if (xCAT::Utils->isAIX()) {
$image=$ent->{provmethod};
} else {
unless($ent->{os} && $ent->{arch} && $ent->{profile}){
$callback->({error=>["$node does not have os, arch, or profile defined in nodetype table"],errorcode=>[1]});
$request = {};
next;
}
if ((!$ent->{provmethod}) || ($ent->{provmethod} eq 'statelite') || ($ent->{provmethod} eq 'netboot') || ($ent->{provmethod} eq 'install')) {
$image = $ent->{os} . "-" . $ent->{arch} . "-statelite-" . $ent->{profile};
} elsif (($ent->{provmethod} ne 'netboot') && ($ent->{provmethod} ne 'install')) {
$image=$ent->{provmethod};
}
}
} else {
$image=$node;
}
my $fData = getNodeData($syncType,$node,$image,$tab,$callback);
# now we go through each directory and search for the file.
showSync($syncType,$callback, $node, $fData);
}
}
# In most cases the syncdir will be on the management node so
# want to make sure its not us before we mount things.
sub showSync {
my $syncType = shift; # dir or file
my $callback = shift;
my $node = shift;
my $dirs = shift;
my $mnts;
my $first;
#print Dumper($dirs);
# go through each directory in priority order
#mkdir "/mnt/xcat";
if($syncType eq "dir"){
foreach my $priority (sort {$a <=> $b} keys %$dirs){
# split the nfs server up from the directory:
my $mntpnt;
my ($server, $dir) = split(/:/,$dirs->{$priority});
# if server is blank then its the directory:
unless($dir){
$dir = $server;
$server = '';
}
if(grep /\$|#CMD/, $dir){
$dir = xCAT::SvrUtils->subVars($dir,$node,'dir',$callback);
$dir =~ s/\/\//\//g;
}
$first = $dir;
$first =~ s!\/([^/]*)\/.*!$1!;
if($server){
if(grep /\$/, $server){
$server = xCAT::SvrUtils->subVars($server,$node,'server',$callback);
}
$mntpnt = $server . ":";
# we have a server and need to make sure we can mount them under unique names
if($mnts->{$first} eq '' ){ # if the first mount point doesn't have a server then leave it.
$mnts->{$first} = $server;
}
}
$mntpnt .= $dir;
# ok, now we have all the mount points. Let's go through them all?
if ($::from_lslite == 1)
{
$callback->({info => " $priority, $mntpnt"});
}
else
{
$callback->({info => "$node: $mntpnt"});
}
}
}elsif($syncType =~ /file|image/){
foreach my $file (sort keys %$dirs){
my $options = $dirs->{$file};
# persistent,rw
my $out;
if ($::from_lslite == 1)
{
$out = sprintf(" %-13s %s", $options, $file);
}
else
{
$out = sprintf("%s: %-13s %s", $node, $options, $file);
}
$callback->({info => $out});
}
}elsif($syncType =~ /location/){
foreach my $node (sort keys %$dirs){
my $location = $dirs->{$node};
my ($server, $dir) = split(/:/, $location);
if(grep /\$|#CMD/, $dir)
{
$dir = xCAT::SvrUtils->subVars($dir,$node,'dir',$callback);
$dir =~ s/\/\//\//g;
}
if(grep /\$/, $server)
{
$server = xCAT::SvrUtils->subVars($server,$node,'server',$callback);
}
$location = $server . ":" . $dir;
if ($::from_lslite == 1)
{
$callback->({info => " $location"});
}
else
{
$callback->({info => "$node: $location"});
}
}
}
}
# get all the directories or files for given image related to this node.
sub getNodeData {
my $type = shift;
my $node = shift;
my $image = shift;
my $tab = shift;
my $cb = shift; # callback to print messages!!
# the image name will be something like rhels5.4-x86_64-nfsroot
#my $image;
#unless($type =~ /image/){
# $image = $ent->{os} . "-" . $ent->{arch} . "-statelite-" . $ent->{profile};
#}else{
# $image = $node;
#}
my @imageInfo;
my @attrs;
if($type eq "dir"){
@attrs = ('priority', 'directory');
}elsif($type =~ /file|image/){
@attrs = ('file','options');
}elsif($type =~ /location/){
@attrs = ('node','statemnt');
}else{
print "Yikes! error in the code litefile;getNodeData!";
exit 1;
}
if ($type eq "location")
{
# get locations with specific nodes
push @imageInfo, $tab->getAttribs({node => $node}, @attrs);
if (!defined $imageInfo[0])
{
# maybe node belongs to nodegroup
# try to find it in groups
my @tmpnodes = join(',', $node);
# group info in nodelist tab
my $nltab = xCAT::Table->new('nodelist');
my $nltabdata = $nltab->getNodesAttribs(\@tmpnodes, ['node', 'groups']);
my $data = $nltabdata->{$node}->[0];
my @grps = split(',', $data->{groups});
foreach my $g (@grps)
{
chomp $g;
my $info = $tab->getAttribs({node => $g}, @attrs);
if(defined $info)
{
push @imageInfo, $info;
}
# return once get one record
last if (defined $imageInfo[1]);
}
}
}
else
{
# get the directories with no names
push @imageInfo, $tab->getAttribs({image => ''}, @attrs);
# get the ALL directories
push @imageInfo, $tab->getAttribs({image => 'ALL'}, @attrs);
# get for the image specific directories
push @imageInfo, $tab->getAttribs({image => $image}, @attrs);
}
# pass back a reference to the directory
# now we need to sort them
return mergeArrays($type,\@imageInfo,$cb);
}
sub mergeArrays {
my $type = shift; # file or dir?
my $arr = shift; # array of info from the tables.
my $cb = shift; # callback routine
my $attrs;
if($type eq "dir"){
foreach(@$arr){
if($_->{directory} eq ''){ next; }
$attrs->{$_->{priority}} = $_->{directory};
}
}elsif($type =~ /file|image/){
foreach(@$arr){
next if($_->{file} eq '');
my $o = $_->{options};
unless ($o) {
if (xCAT::Utils->isAIX()) {
$o = "rw"; # default option if not provided
} else {
$o = "tempfs";
}
}
# TODO: put some logic in here to make sure that ro is alone.
# if type is ro and con, then this is wrong silly!
#if($p eq "ro" and $t eq "con"){
# my $f = $_->{file};
# $cb->({info => "#skipping: $f. not allowed to be ro and con"});
# next;
#}
$attrs->{$_->{file}} = $o;
}
}elsif($type =~ /location/){
foreach(@$arr)
{
if($_->{statemnt} eq '') {next;}
$attrs->{$_->{node}} = $_->{statemnt};
}
}else{
print "Yikes! Error in the code in mergeArrays!\n";
exit 1;
}
#print "mergeArrays...\n";
#print Dumper($attrs);
return $attrs;
}
#----------------------------------------------------------------------------
=head3 lslite_usage
=cut
#-----------------------------------------------------------------------------
sub lslite_usage
{
my $callback = shift;
my $rsp;
push @{$rsp->{data}},
"\n lslite - Display a summary of the statelite information \n\t\tthat has been defined for a noderange or an image.";
push @{$rsp->{data}}, " Usage: ";
push @{$rsp->{data}}, "\tlslite [-h | --help]";
push @{$rsp->{data}}, "or";
push @{$rsp->{data}}, "\tlslite [-V | --verbose] [-i imagename] | [noderange]";
xCAT::MsgUtils->message("I", $rsp, $callback);
return 0;
}
sub lslite {
my $request = shift;
my $callback = shift;
my $noderange = shift;
my @image;
$::from_lslite = 1; # to control the output format
unless($request->{arg} || defined $noderange)
{
&lslite_usage($callback);
return 1;
}
# parse the options
Getopt::Long::Configure("no_pass_through");
Getopt::Long::Configure("bundling");
if ($request->{arg})
{
@ARGV = @{$request->{arg}};
if (
!GetOptions(
'h|help' => \$::HELP,
'i=s' => \$::OSIMAGE,
'V|verbose' => \$::VERBOSE,
)
)
{
&lslite_usage($callback);
return 1;
}
}
if ($::HELP)
{
&lslite_usage($callback);
return 0;
}
# handle "lslite -i image1"
# use the logic for ilitefile
if ($::OSIMAGE)
{
# make sure the osimage is defined
my @imglist = xCAT::DBobjUtils->getObjectsOfType('osimage');
if (!grep(/^$::OSIMAGE$/, @imglist))
{
$callback->({error=>["The osimage named \'$::OSIMAGE\' is not defined."],errorcode=>[1]});
return 1;
}
@image = join(',', $::OSIMAGE);
syncmount("image", $request, $callback, \@image);
return 0;
}
# handle "lslite node1"
my @nodes;
if (defined $noderange)
{
@nodes = @{$noderange};
if (scalar @nodes)
{
# get node's osimage/profile
my $nttab = xCAT::Table->new('nodetype');
my $nttabdata = $nttab->getNodesAttribs(\@nodes, ['node', 'profile', 'os', 'arch', 'provmethod']);
foreach my $node (@nodes)
{
my $image;
my $data = $nttabdata->{$node}->[0];
if (xCAT::Utils->isAIX())
{
if (defined ($data->{provmethod}))
{
$image = $data->{provmethod};
}
else
{
$callback->({error=>["no provmethod defined for node $node."],errorcode=>[1]});
}
}
else
{
if ((!$data->{provmethod}) || ($data->{provmethod} eq 'statelite') || ($data->{provmethod} eq 'netboot') || ($data->{provmethod} eq 'install'))
{
$image = $data->{os} . "-" . $data->{arch} . "-statelite-" . $data->{profile};
}
else
{
$image = $data->{provmethod};
}
}
$callback->({info => ">>>Node: $node\n"});
$callback->({info => "Osimage: $image\n"});
# structure node as ARRAY
my @tmpnode = join(',', $node);
my @types = ("location", "file", "dir");
foreach my $type (@types)
{
if($type eq "location")
{
# show statelite table
$callback->({info => "Persistent directory (statelite table):"}); }
elsif($type eq "file")
{
# show litefile table
$callback->({info => "Litefiles (litefile table):"});
}
elsif($type eq "dir")
{
# show litetree table
$callback->({info => "Litetree path (litetree table):"});
}
else
{
$callback->({error=>["Invalid type."],errorcode=>[1]});
return 1;
}
syncmount($type, $request, $callback, \@tmpnode);
$callback->({info => "\n"});
}
}
}
}
return;
}
1;
#vim: set ts=2