af3efe7170
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@13446 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
817 lines
24 KiB
Perl
817 lines
24 KiB
Perl
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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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use POSIX;
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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 $sub_req = shift;
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my %sn;
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my $sn;
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my $rc = 0;
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#if already preprocessed, go straight to request
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if ( (defined($req->{_xcatpreprocessed}))
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&& ($req->{_xcatpreprocessed}->[0] == 1))
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{
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return [$req];
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}
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my $command = $req->{command}->[0]; # xdsh vs xdcp
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my $nodes = $req->{node};
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my $service = "xcat";
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my @requests;
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$::RUNCMD_RC = 0;
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@::good_SN;
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@::bad_SN;
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my $syncsn = 0; # sync service node only if 1
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# read the environment variables for rsync setup
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# and xdsh -e command
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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 = $value; # name of syncfile
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}
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if ($var eq "DCP_PULL") # from -P flag
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{
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$::dcppull = 1; # TBD handle pull hierarchy
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}
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if ($var eq "DSHEXECUTE") # from xdsh -e flag
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{
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$::dshexecutecmd = $value; # Handle hierarchy
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my @cmd = split(/ /, $value); # split off args, if any
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$::dshexecute = $cmd[0]; # This is the executable file
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}
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}
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# there are nodes in the xdsh command, not xdsh to an image
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if ($nodes)
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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 $MNnodename = pop @MNnodeinfo; # hostname
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my @MNnodeipaddr = @MNnodeinfo; # ipaddresses
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$::mnname = $MNnodeipaddr[0];
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$::SNpath; # syncfile path on the service node
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$sn = xCAT::Utils->get_ServiceNode($nodes, $service, "MN");
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my @snodes;
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my @snoderange;
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# check to see if service nodes and not just the MN
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# if just MN or I am on a Service Node, then no hierarchy to deal with
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if (! (xCAT::Utils->isServiceNode())) { # not on a servicenode
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if ($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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chop $snoderange[0];
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}
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}
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}
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}
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# if servicenodes and (if xdcp and not pull function or xdsh -e)
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# send command to service nodes first and process errors
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# return an array of good service nodes
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#
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my $synfiledir;
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if (@snodes) # service nodes
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{
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# if xdcp and not pull function or xdsh -e
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if ((($command eq "xdcp") && ($::dcppull == 0)) or ($::dshexecute))
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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 = $syndir[0];
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}
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else
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{
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$synfiledir = "/var/xcat/syncfiles"; # default
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}
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# setup the service node with the files to xdcp to the
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# compute nodes
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if ($command eq "xdcp"){
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$rc =
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&process_servicenodes_xdcp($req, $cb, $sub_req, \@snodes,
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\@snoderange, $synfiledir);
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# fatal error need to stop
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if ($rc != 0)
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{
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return;
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}
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} else { # xdsh -e
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$rc =
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&process_servicenodes_xdsh($req, $cb, $sub_req, \@snodes,
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\@snoderange, $synfiledir);
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# fatal error need to stop
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if ($rc != 0)
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{
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return;
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}
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}
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}
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else
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{ # command is xdsh ( not -e) or xdcp pull
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@::good_SN = @snodes; # all good service nodes for now
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}
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}
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else
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{ # no servicenodes, no hierarchy
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# process here on the MN
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&process_request($req, $cb, $sub_req);
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return;
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}
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# if hierarchical work still to do
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# Note there may still be a mix of nodes that are service from
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# the MN and nodes that are serviced from the SN, for example
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# a dsh to a list of servicenodes and nodes in the noderange.
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if ($syncsn == 0) # not just syncing (-s) the service nodes
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# taken care of in process_servicenodes
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{
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foreach my $snkey (keys %$sn)
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{
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# if it is not being service by the MN
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if (!grep(/$snkey/, @MNnodeipaddr))
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{
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# if it is a good SN, one ready to service the nodes
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if (grep(/$snkey/, @::good_SN))
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{
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my $noderequests =
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&process_nodes($req, $sn, $snkey,$synfiledir);
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push @requests, $noderequests; # build request queue
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}
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}
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else # serviced by the MN, then
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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, $reqcopy;
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}
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} # end foreach
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} # end syncing nodes
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}
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else # no nodes on the command
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{ # running on local image
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return [$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_servicenodes_xdcp
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Build the xdcp command to send to the service nodes first
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Return an array of servicenodes that do not have errors
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Returns error code:
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if = 0, good return continue to process the
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nodes.
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if = 1, global error need to quit
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=cut
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#-------------------------------------------------------
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sub process_servicenodes_xdcp
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{
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my $req = shift;
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my $callback = shift;
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my $sub_req = shift;
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my $sn = shift;
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my $snrange = shift;
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my $synfiledir = shift;
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my @snodes = @$sn;
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my @snoderange = @$snrange;
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my $args;
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$::RUNCMD_RC = 0;
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my $cmd = $req->{command}->[0];
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# if xdcp -F command (input $syncsnfile) and the original synclist need
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# to be rsync to the $synfiledir directory on the service nodes first
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if ($::syncsnfile)
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{
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if (!-f $::syncsnfile)
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{ # syncfile does not exist, quit
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my $rsp = {};
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$rsp->{data}->[0] = "File:$::syncsnfile does not exist.";
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xCAT::MsgUtils->message("E", $rsp, $callback, 1);
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return (1); # process no service nodes
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}
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# xdcp rsync each of the files contained in the -F syncfile and the
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# original synclist input on the -F flag to
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# the service node first to the site.SNsyncfiledir directory
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#change noderange to the service nodes
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# sync each one and check for error
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# if error do not add to good_SN array, add to bad_SN
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foreach my $node (@snodes)
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{
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# run the command to each servicenode
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# xdcp <sn> -s -F <syncfile>
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my @sn = ();
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# handle multiple servicenodes for one node
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my @sn_list = split ',', $node;
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foreach my $snode (@sn_list) {
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push @sn, $snode;
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}
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# don't use runxcmd, because can go straight to process_request,
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# these are all service nodes. Also servicenode is taken from
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# the noderes table and may not be the same name as in the nodelist
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# table, for example may be an ip address.
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# here on the MN
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my $addreq;
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$addreq->{'_xcatdest'} = $::mnname;
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$addreq->{node} = \@sn;
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$addreq->{noderange} = \@sn;
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$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] = $cmd;
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$addreq->{cwd}->[0] = $req->{cwd}->[0];
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$addreq->{env} = $req->{env};
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&process_request($addreq, $callback, $sub_req);
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if ($::FAILED_NODES == 0)
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{
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push @::good_SN, $node;
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}
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else
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{
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push @::bad_SN, $node;
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}
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} # end foreach good servicenode
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} # end xdcp -F
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else
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{
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# if other xdcp commands, and not pull function
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# mk the directory on the SN to hold the files
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# to be sent to the SN.
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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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# hierarchical support for pull (TBD)
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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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# xdsh <sn> mkdir -p $SNdir
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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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foreach my $node (@snodes)
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{
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my @sn = ();
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# handle multiple servicenodes for one node
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my @sn_list = split ',', $node;
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foreach my $snode (@sn_list) {
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push @sn, $snode;
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}
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# run the command to each servicenode
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# to make the directory under the temporary
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# SNsyncfiledir to hold the files that will be
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# sent to the service nodes
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# xdsh <sn> mkdir -p <SNsyncfiledir>/$::SNpath
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my $addreq;
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$addreq->{'_xcatdest'} = $::mnname;
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$addreq->{node} = \@sn;
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$addreq->{noderange} = \@sn;
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$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] = $req->{cwd}->[0];
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$addreq->{env} = $req->{env};
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&process_request($addreq, $callback, $sub_req);
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if ($::FAILED_NODES == 0)
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{
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push @::good_SN, $node;
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}
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else
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{
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push @::bad_SN, $node;
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}
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} # end foreach good servicenode
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# now xdcp file to the service node to the new
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# tmp path
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# for all the service nodes that are still good
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my @good_SN2 = @::good_SN;
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@::good_SN = ();
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foreach my $node (@good_SN2)
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{
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my @sn;
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push @sn, $node;
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# copy the file to each good servicenode
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# xdcp <sn> <file> <SNsyncfiledir/../file>
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my $addreq = dclone($req); # get original request
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$addreq->{arg}->[-1] = $SNdir; # change to tmppath on servicenode
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$addreq->{'_xcatdest'} = $::mnname;
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$addreq->{node} = \@sn;
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$addreq->{noderange} = \@sn;
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&process_request($addreq, $callback, $sub_req);
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if ($::FAILED_NODES == 0)
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{
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push @::good_SN, $node;
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}
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else
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{
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push @::bad_SN, $node;
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}
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} # end foreach good service node
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}
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# report bad service nodes]
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if (@::bad_SN)
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{
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my $rsp = {};
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my $badnodes;
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foreach my $badnode (@::bad_SN)
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{
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$badnodes .= $badnode;
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$badnodes .= ", ";
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}
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chop $badnodes;
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my $msg =
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"\nThe following servicenodes: $badnodes have errors and cannot be updated\n Until the error is fixed, xdcp will not work to nodes serviced by these service nodes.";
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$rsp->{data}->[0] = $msg;
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xCAT::MsgUtils->message("D", $rsp, $callback);
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}
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return (0);
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}
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#-------------------------------------------------------
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=head3 process_servicenodes_xdsh
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Build the xdsh command to send the -e file
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The executable must be copied into /var/xcat/syncfiles, and then
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the command modified so that the xdsh running on the SN will cp the file
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from /var/xcat/syncfiles to the compute node /tmp directory and run it.
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Return an array of servicenodes that do not have errors
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Returns error code:
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if = 0, good return continue to process the
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nodes.
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if = 1, global error need to quit
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=cut
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#-------------------------------------------------------
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sub process_servicenodes_xdsh
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{
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my $req = shift;
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my $callback = shift;
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my $sub_req = shift;
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my $sn = shift;
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my $snrange = shift;
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my $synfiledir = shift;
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my @snodes = @$sn;
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my @snoderange = @$snrange;
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my $args;
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$::RUNCMD_RC = 0;
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my $cmd = $req->{command}->[0];
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# if xdsh -e <executable> command, service nodes first need
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# to be rsync with the executable file to the $synfiledir
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if ($::dshexecute)
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{
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if (!-f $::dshexecute)
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{ # -e file does not exist, quit
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my $rsp = {};
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$rsp->{data}->[0] = "File:$::dshexecute does not exist.";
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xCAT::MsgUtils->message("E", $rsp, $callback, 1);
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return (1); # process no service nodes
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}
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# xdcp the executable from the xdsh -e to the service node first
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# change noderange to the service nodes
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# sync to each SN and check for error
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# if error do not add to good_SN array, add to bad_SN
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# build a tmp syncfile with
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# $::dshexecute -> $synfiledir . $::dshexecute
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my $tmpsyncfile = POSIX::tmpnam . ".dsh";
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my $destination=$synfiledir . $::dshexecute;
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open(TMPFILE, "> $tmpsyncfile")
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or die "can not open file $tmpsyncfile";
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print TMPFILE "$::dshexecute -> $destination\n";
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close TMPFILE;
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chmod 0755, $tmpsyncfile;
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foreach my $node (@snodes)
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{
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# sync the file to the SN /var/xcat/syncfiles directory
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# (site.SNsyncfiledir)
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# xdcp <sn> -s -F <tmpsyncfile>
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my @sn = ();
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# handle multiple servicenodes for one node
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my @sn_list = split ',', $node;
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foreach my $snode (@sn_list) {
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push @sn, $snode;
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}
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# don't use runxcmd, because can go straight to process_request,
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# these are all service nodes. Also servicenode is taken from
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# the noderes table and may not be the same name as in the nodelist
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# table, for example may be an ip address.
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# here on the MN
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my $addreq;
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$addreq->{'_xcatdest'} = $::mnname;
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$addreq->{node} = \@sn;
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$addreq->{noderange} = \@sn;
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$addreq->{arg}->[0] = "-s";
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$addreq->{arg}->[1] = "-F";
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$addreq->{arg}->[2] = $tmpsyncfile;
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$addreq->{command}->[0] = "xdcp";
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$addreq->{cwd}->[0] = $req->{cwd}->[0];
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$addreq->{env} = $req->{env};
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&process_request($addreq, $callback, $sub_req);
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if ($::FAILED_NODES == 0)
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{
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push @::good_SN, $node;
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}
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else
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{
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|
push @::bad_SN, $node;
|
|
}
|
|
} # end foreach good servicenode
|
|
# remove the tmp syncfile
|
|
`/bin/rm $tmpsyncfile`;
|
|
|
|
} # end xdsh -E
|
|
|
|
# report bad service nodes]
|
|
if (@::bad_SN)
|
|
{
|
|
my $rsp = {};
|
|
my $badnodes;
|
|
foreach my $badnode (@::bad_SN)
|
|
{
|
|
$badnodes .= $badnode;
|
|
$badnodes .= ", ";
|
|
}
|
|
chop $badnodes;
|
|
my $msg =
|
|
"\nThe following servicenodes: $badnodes have errors and cannot be updated\n Until the error is fixed, xdsh -e will not work to nodes serviced by these service nodes. Run xdsh <servicenode,...> -c , to clean up the xdcp servicenode directory, and run the command again.";
|
|
$rsp->{data}->[0] = $msg;
|
|
xCAT::MsgUtils->message("D", $rsp, $callback);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
#-------------------------------------------------------
|
|
|
|
=head3 process_nodes
|
|
|
|
Build the request to send to the nodes, serviced by SN
|
|
Return the request
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------
|
|
sub process_nodes
|
|
{
|
|
|
|
my $req = shift;
|
|
my $sn = shift;
|
|
my $snkey = shift;
|
|
my $synfiledir = shift;
|
|
my $command = $req->{command}->[0];
|
|
my @requests;
|
|
|
|
# if the xdcp -F option to sync the nodes
|
|
# then for a Node
|
|
# change the command to use the -F syncfiledir path to the synclist
|
|
# because that is where the file was put on the SN
|
|
#
|
|
my $newSNreq = dclone($req);
|
|
my $newsyncfile = $synfiledir;
|
|
$newsyncfile .=$::syncsnfile;
|
|
if ($::syncsnfile) # -F option
|
|
{
|
|
my $args = $newSNreq->{arg};
|
|
|
|
my $i = 0;
|
|
foreach my $argument (@$args)
|
|
{
|
|
|
|
# find the -F and change the name of the
|
|
# file in the next array entry to the file that
|
|
# is in the site.SNsyncfiledir
|
|
# directory on the service node
|
|
if ($argument eq "-F")
|
|
{
|
|
$i++;
|
|
$newSNreq->{arg}->[$i] = $newsyncfile;
|
|
last;
|
|
}
|
|
$i++;
|
|
}
|
|
}
|
|
|
|
else
|
|
{ # if other dcp command, change from directory
|
|
# to be the site.SNsyncfiledir
|
|
# directory on the service node
|
|
# if not pull (-P) pullfunction
|
|
# xdsh and xdcp pull just use the input request
|
|
if (($command eq "xdcp") && ($::dcppull == 0))
|
|
{
|
|
# have to change each file path and add the SNsynfiledir
|
|
# except the last entry which is the destination on the computenode
|
|
# skip flags
|
|
my $args = $newSNreq->{arg};
|
|
my $arraysize = @$args;
|
|
my $i = 0;
|
|
foreach my $sarg (@$args) {
|
|
if ($arraysize > 1) {
|
|
if ($sarg =~ /^-/) { # just a flag, skip
|
|
$arraysize--;
|
|
$i++;
|
|
} else {
|
|
my $tmpfile =$synfiledir ;
|
|
$tmpfile .=$newSNreq->{arg}->[$i] ;
|
|
$newSNreq->{arg}->[$i] = $tmpfile;
|
|
$arraysize--;
|
|
$i++;
|
|
}
|
|
} else {
|
|
last;
|
|
}
|
|
}
|
|
} else { # if xdsh -e
|
|
if ($::dshexecute) { # put in new path from SN directory
|
|
my $destination=$synfiledir . $::dshexecute;
|
|
my $args = $newSNreq->{arg};
|
|
my $i = 0;
|
|
foreach my $argument (@$args)
|
|
{
|
|
# find the -e and change the name of the
|
|
# file in the next array entry to SN offset
|
|
if ($argument eq "-e")
|
|
{
|
|
$i++;
|
|
$newSNreq->{arg}->[$i] = $destination;
|
|
last;
|
|
}
|
|
$i++;
|
|
|
|
}
|
|
} # end if dshexecute
|
|
}
|
|
}
|
|
$newSNreq->{node} = $sn->{$snkey};
|
|
$newSNreq->{'_xcatdest'} = $snkey;
|
|
$newSNreq->{_xcatpreprocessed}->[0] = 1;
|
|
|
|
#push @requests, $newSNreq;
|
|
|
|
return $newSNreq;
|
|
}
|
|
|
|
#-------------------------------------------------------
|
|
|
|
=head3 process_request
|
|
|
|
Process the command
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------
|
|
sub process_request
|
|
{
|
|
|
|
my $request = shift;
|
|
my $callback = shift;
|
|
my $sub_req = shift;
|
|
$::SUBREQ = $sub_req;
|
|
|
|
my $nodes = $request->{node};
|
|
my $command = $request->{command}->[0];
|
|
my $args = $request->{arg};
|
|
my $envs = $request->{env};
|
|
my $rsp = {};
|
|
|
|
# get the Environment Variables and set them in the current environment
|
|
foreach my $envar (@{$request->{env}})
|
|
{
|
|
my ($var, $value) = split(/=/, $envar, 2);
|
|
$ENV{$var} = $value;
|
|
}
|
|
# if request->{username} exists, set DSH_FROM_USERID to it
|
|
# override input, this is what was authenticated
|
|
if (($request->{username}) && defined($request->{username}->[0])) {
|
|
$ENV{DSH_FROM_USERID} = $request->{username}->[0];
|
|
}
|
|
if ($command eq "xdsh")
|
|
{
|
|
xdsh($nodes, $args, $callback, $command, $request->{noderange}->[0]);
|
|
}
|
|
else
|
|
{
|
|
if ($command eq "xdcp")
|
|
{
|
|
xdcp($nodes, $args, $callback, $command,
|
|
$request->{noderange}->[0]);
|
|
}
|
|
else
|
|
{
|
|
my $rsp = {};
|
|
$rsp->{data}->[0] =
|
|
"Unknown command $command. Cannot process the command.";
|
|
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
#-------------------------------------------------------
|
|
|
|
=head3 xdsh
|
|
|
|
Parses Builds and runs the dsh
|
|
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------
|
|
sub xdsh
|
|
{
|
|
my ($nodes, $args, $callback, $command, $noderange) = @_;
|
|
|
|
$::FAILED_NODES = 0;
|
|
|
|
# parse dsh input, will return $::NUMBER_NODES_FAILED
|
|
my @local_results =
|
|
xCAT::DSHCLI->parse_and_run_dsh($nodes, $args, $callback,
|
|
$command, $noderange);
|
|
|
|
my $maxlines = 10000;
|
|
my $arraylen = @local_results;
|
|
my $rsp = {};
|
|
my $i = 0;
|
|
my $j;
|
|
while ($i < $arraylen)
|
|
{
|
|
|
|
for ($j = 0 ; $j < $maxlines ; $j++)
|
|
{
|
|
if ($i > $arraylen)
|
|
{
|
|
last;
|
|
}
|
|
else
|
|
{
|
|
$rsp->{data}->[$j] = $local_results[$i]; # send max lines
|
|
}
|
|
$i++;
|
|
}
|
|
xCAT::MsgUtils->message("D", $rsp, $callback);
|
|
}
|
|
|
|
# set return code
|
|
$rsp = {};
|
|
$rsp->{errorcode} = $::FAILED_NODES;
|
|
$callback->($rsp);
|
|
return;
|
|
}
|
|
|
|
#-------------------------------------------------------
|
|
|
|
=head3 xdcp
|
|
|
|
Parses, Builds and runs the dcp command
|
|
|
|
|
|
=cut
|
|
|
|
#-------------------------------------------------------
|
|
sub xdcp
|
|
{
|
|
my ($nodes, $args, $callback, $command, $noderange) = @_;
|
|
|
|
$::FAILED_NODES = 0;
|
|
|
|
#`touch /tmp/lissadebug`;
|
|
# parse dcp input
|
|
my @local_results =
|
|
xCAT::DSHCLI->parse_and_run_dcp($nodes, $args, $callback,
|
|
$command, $noderange);
|
|
my $rsp = {};
|
|
my $i = 0;
|
|
## process return data
|
|
if (@local_results)
|
|
{
|
|
foreach my $line (@local_results)
|
|
{
|
|
$rsp->{data}->[$i] = $line;
|
|
$i++;
|
|
}
|
|
|
|
xCAT::MsgUtils->message("D", $rsp, $callback);
|
|
}
|
|
|
|
# set return code
|
|
$rsp = {};
|
|
$rsp->{errorcode} = $::FAILED_NODES;
|
|
$callback->($rsp);
|
|
return;
|
|
}
|
|
|