002b0d5075
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4179 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
380 lines
12 KiB
Perl
380 lines
12 KiB
Perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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#-------------------------------------------------------
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=head1
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xCAT plugin package to handle xdsh
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Supported command:
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xdsh-> dsh
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xdcp-> dcp
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=cut
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#-------------------------------------------------------
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package xCAT_plugin::xdsh;
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use strict;
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use Storable qw(dclone);
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use File::Basename;
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use File::Path;
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require xCAT::Table;
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require xCAT::Utils;
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require xCAT::MsgUtils;
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use Getopt::Long;
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require xCAT::DSHCLI;
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1;
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#-------------------------------------------------------
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=head3 handled_commands
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Return list of commands handled by this plugin
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=cut
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#-------------------------------------------------------
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sub handled_commands
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{
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return {
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xdsh => "xdsh",
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xdcp => "xdsh"
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};
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}
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#-------------------------------------------------------
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=head3 preprocess_request
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Check and setup for hierarchy
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=cut
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#-------------------------------------------------------
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sub preprocess_request
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{
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my $req = shift;
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my $cb = shift;
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my %sn;
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my $sn;
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my $command = $req->{command}->[0]; # xdsh vs xdcp
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#if already preprocessed, go straight to request
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if ($req->{_xcatpreprocessed}->[0] == 1) { return [$req]; }
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my $nodes = $req->{node};
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my $service = "xcat";
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my @requests;
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my $syncsn = 0;
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my $syncsnfile;
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# read the environment variables for rsync setup
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foreach my $envar (@{$req->{env}})
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{
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my ($var, $value) = split(/=/, $envar, 2);
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if ($var eq "RSYNCSNONLY")
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{ # syncing SN, will change noderange to list of SN
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# we are only syncing the service node ( -s flag)
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$syncsn = 1;
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}
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if ($var eq "DSH_RSYNC_FILE") # from -F flag
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{ # if hierarchy,need to copy file to the SN
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$syncsnfile = $value; # in the new /tmp/xcatrf.tmp
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}
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}
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# find service nodes for requested nodes
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# build an individual request for each service node
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# find out the names for the Management Node
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my @MNnodeinfo = xCAT::Utils->determinehostname;
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my $MNnodename = pop @MNnodeinfo; # hostname
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my @MNnodeipaddr = @MNnodeinfo; # ipaddresses
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my $mnname = $MNnodeipaddr[0];
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my $tmpsyncsnfile = "/tmp/xcatrf.tmp";
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my $SNpath;
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my $synfiledir = "/var/xcat/syncfiles"; # default
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if ($nodes)
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{
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$sn = xCAT::Utils->get_ServiceNode($nodes, $service, "MN");
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my @snodes;
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my @snoderange;
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# check to see if service nodes and not just the MN
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if ($sn)
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{
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foreach my $snkey (keys %$sn)
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{
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if (!grep(/$snkey/, @MNnodeipaddr))
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{ # if not the MN
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push @snodes, $snkey;
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$snoderange[0] .= "$snkey,";
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}
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}
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if (@snodes)
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{
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# get the directory on the servicenode to put the files in
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my @syndir = xCAT::Utils->get_site_attribute("SNsyncfiledir");
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if ($syndir[0])
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{
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$synfiledir = $syndir[0];
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}
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# if -F command and service nodes first need to rsync the SN
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if ($syncsnfile)
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{
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#change noderange to the service nodes
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my $addreq;
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chop $snoderange[0];
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$addreq->{'_xcatdest'} = $mnname;
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$addreq->{node} = \@snodes;
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$addreq->{noderange} = \@snoderange;
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$addreq->{arg}->[0] = "-s";
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$addreq->{arg}->[1] = "-F";
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$addreq->{arg}->[2] = $syncsnfile;
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$addreq->{command}->[0] = $req->{command}->[0];
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$addreq->{cwd}->[0] = $req->{cwd}->[0];
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push @requests, $addreq;
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# need to add to the queue to copy rsync file( -F input)
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# to the service node to the /tmp/xcatrf.tmp file
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my $addreq;
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$addreq->{'_xcatdest'} = $mnname;
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$addreq->{node} = \@snodes;
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$addreq->{noderange} = \@snoderange;
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$addreq->{arg}->[0] = $syncsnfile;
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$addreq->{arg}->[1] = $tmpsyncsnfile;
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$addreq->{command}->[0] = $req->{command}->[0];
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$addreq->{cwd}->[0] = $req->{cwd}->[0];
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push @requests, $addreq;
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}
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else
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{
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# if other xdcp command
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# mk the diretory on the SN to hold the files
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# to be sent to the CN.
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# build a command to update the service nodes
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# change the destination to the tmp location on
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# the service node.
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if ($command eq "xdcp")
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{
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#make the needed directory on the service node
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# create new directory for path on Service Node
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my $frompath = $req->{arg}->[-2];
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$SNpath = $synfiledir;
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$SNpath .= $frompath;
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my $SNdir;
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$SNdir = dirname($SNpath); # get directory
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my $addreq= dclone($req);
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$addreq->{'_xcatdest'} = $mnname;
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$addreq->{node} = \@snodes;
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$addreq->{noderange} = \@snoderange;
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$addreq->{arg}->[0] = "mkdir ";
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$addreq->{arg}->[1] = "-p ";
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$addreq->{arg}->[2] = $SNdir;
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$addreq->{command}->[0] = "xdsh";
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$addreq->{cwd}->[0] = $req->{cwd}->[0];
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push @requests, $addreq;
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# now sync file to the service node to the new
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# tmp path
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my $addreq = dclone($req);
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$addreq->{'_xcatdest'} = $mnname;
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chop $snoderange[0];
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$addreq->{node} = \@snodes;
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$addreq->{noderange} = \@snoderange;
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$addreq->{arg}->[-1] = $SNdir;
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push @requests, $addreq;
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}
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}
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}
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} # end if SN
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# if not only syncing the service nodes ( -s flag)
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# for each node build the
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# the command, to sync from the service node
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if ($syncsn == 0)
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{ #syncing nodes ( no -s flag)
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foreach my $snkey (keys %$sn)
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{
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if (!grep(/$snkey/, @MNnodeipaddr))
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{ # entries run from the Service Node
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# if the -F option to sync the nodes
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# then for a Service Node
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# change the command to use the -F /tmp/xcatrf.tmp
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# because that is where the file was put on the SN
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#
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my $newSNreq = dclone($req);
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if ($syncsnfile) # -F option
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{
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my $args = $newSNreq->{arg};
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my $i = 0;
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foreach my $argument (@$args)
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{
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# find the -F and change the name of the
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# file in the next array entry to the tmp file
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if ($argument eq "-F")
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{
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$i++;
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$newSNreq->{arg}->[$i] = $tmpsyncsnfile;
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last;
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}
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$i++;
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}
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}
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else
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{ # if other dcp command, change from directory
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# to be the tmp directory on the service node
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if ($command eq "xdcp")
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{
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$newSNreq->{arg}->[-2] = $SNpath;
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}
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}
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$newSNreq->{node} = $sn->{$snkey};
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$newSNreq->{'_xcatdest'} = $snkey;
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$newSNreq->{_xcatpreprocessed}->[0] = 1;
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push @requests, $newSNreq;
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}
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else
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{ # just run normal dsh dcp
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my $reqcopy = {%$req};
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$reqcopy->{node} = $sn->{$snkey};
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$reqcopy->{'_xcatdest'} = $snkey;
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$reqcopy->{_xcatpreprocessed}->[0] = 1;
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push @requests, $reqcopy;
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}
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} # end foreach
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} # end syncing only service nodes
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}
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else
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{ # running local on image
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return [$req];
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}
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return \@requests;
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}
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#-------------------------------------------------------
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=head3 process_request
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Process the command
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=cut
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#-------------------------------------------------------
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sub process_request
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{
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my $request = shift;
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my $callback = shift;
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my $nodes = $request->{node};
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my $command = $request->{command}->[0];
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my $args = $request->{arg};
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my $envs = $request->{env};
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my $rsp = {};
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# get the Environment Variables and set them in the current environment
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foreach my $envar (@{$request->{env}})
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{
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my ($var, $value) = split(/=/, $envar, 2);
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$ENV{$var} = $value;
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}
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if ($command eq "xdsh")
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{
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xdsh($nodes, $args, $callback, $command, $request->{noderange}->[0]);
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}
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else
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{
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if ($command eq "xdcp")
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{
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xdcp($nodes, $args, $callback, $command,
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$request->{noderange}->[0]);
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}
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else
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{
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my $rsp = {};
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$rsp->{data}->[0] =
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"Unknown command $command. Cannot process the command.";
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xCAT::MsgUtils->message("E", $rsp, $callback, 1);
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return;
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}
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}
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}
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#-------------------------------------------------------
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=head3 xdsh
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Parses Builds and runs the dsh
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=cut
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#-------------------------------------------------------
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sub xdsh
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{
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my ($nodes, $args, $callback, $command, $noderange) = @_;
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my $rsp = {};
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# parse dsh input
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my @local_results =
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xCAT::DSHCLI->parse_and_run_dsh($nodes, $args, $callback,
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$command, $noderange);
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push @{$rsp->{data}}, @local_results;
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xCAT::MsgUtils->message("D", $rsp, $callback);
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return;
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}
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#-------------------------------------------------------
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=head3 xdcp
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Parses, Builds and runs the dcp command
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=cut
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#-------------------------------------------------------
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sub xdcp
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{
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my ($nodes, $args, $callback, $command, $noderange) = @_;
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#`touch /tmp/lissadebug`;
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# parse dcp input
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my @local_results =
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xCAT::DSHCLI->parse_and_run_dcp($nodes, $args, $callback,
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$command, $noderange);
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my $rsp = {};
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my $i = 0;
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## process return data
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foreach my $line (@local_results)
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{
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$rsp->{data}->[$i] = $line;
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$i++;
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}
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xCAT::MsgUtils->message("D", $rsp, $callback);
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if (-e "/tmp/xcatrf.tmp")
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{ # used tmp file for -F option
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#`rm /tmp/xcatrf.tmp`;
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}
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return;
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}
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