xcat-core/xCAT-server/lib/xcat/plugins/xdsh.pm
2013-01-09 11:56:18 +00:00

1103 lines
34 KiB
Perl

#-------------------------------------------------------
=head1
xCAT plugin package to handle xdsh
Supported command:
xdsh-> dsh
xdcp-> dcp
=cut
#-------------------------------------------------------
package xCAT_plugin::xdsh;
use strict;
use Storable qw(dclone);
use File::Basename;
use File::Path;
use POSIX;
require xCAT::Table;
require xCAT::Utils;
require xCAT::TableUtils;
require xCAT::ServiceNodeUtils;
require xCAT::MsgUtils;
use Getopt::Long;
require xCAT::DSHCLI;
1;
#-------------------------------------------------------
=head3 handled_commands
Return list of commands handled by this plugin
=cut
#-------------------------------------------------------
sub handled_commands
{
return {
xdsh => "xdsh",
xdcp => "xdsh"
};
}
#-------------------------------------------------------
=head3 preprocess_request
Check and setup for hierarchy
=cut
#-------------------------------------------------------
sub preprocess_request
{
my $req = shift;
my $cb = shift;
my $sub_req = shift;
my %sn;
my $sn;
my $rc = 0;
#if already preprocessed, go straight to request
if ( (defined($req->{_xcatpreprocessed}))
&& ($req->{_xcatpreprocessed}->[0] == 1))
{
return [$req];
}
my $command = $req->{command}->[0]; # xdsh vs xdcp
my $nodes = $req->{node};
my $service = "xcat";
my @requests;
$::RUNCMD_RC = 0;
@::good_SN=();
@::bad_SN = ();
my $syncsn = 0; # sync service node only if 1
# read the environment variables for rsync setup
# and xdsh -e command
foreach my $envar (@{$req->{env}})
{
my ($var, $value) = split(/=/, $envar, 2);
if ($var eq "RSYNCSNONLY")
{ # syncing SN, will change noderange to list of SN
# we are only syncing the service node ( -s flag)
$syncsn = 1;
}
if ($var eq "DSH_RSYNC_FILE") # from -F flag
{ # if hierarchy,need to copy file to the SN
$::syncsnfile = $value; # name of syncfile
}
if ($var eq "DCP_PULL") # from -P flag
{
$::dcppull = 1; # TBD handle pull hierarchy
}
if ($var eq "DSHEXECUTE") # from xdsh -e flag
{
$::dshexecutecmd = $value; # Handle hierarchy
my @cmd = split(/ /, $value); # split off args, if any
$::dshexecute = $cmd[0]; # This is the executable file
}
}
# if xdcp need to make sure request has full path to input files
if ($command eq "xdcp") {
$req = &parse_xdcp_cmd($req);
}
# if xdsh need to make sure request has full path to input files
if ($command eq "xdsh") {
$req = &parse_xdsh_cmd($req);
}
# there are nodes in the xdsh command, not xdsh to an image
if ($nodes)
{
# find service nodes for requested nodes
# build an individual request for each service node
# find out the names for the Management Node
my @MNnodeinfo = xCAT::NetworkUtils->determinehostname;
my $MNnodename = pop @MNnodeinfo; # hostname
my @MNnodeipaddr = @MNnodeinfo; # ipaddresses
$::mnname = $MNnodeipaddr[0];
$::SNpath; # syncfile path on the service node
$sn = xCAT::ServiceNodeUtils->get_ServiceNode($nodes, $service, "MN");
my @snodes;
my @snoderange;
# check to see if service nodes and not just the MN
# if just MN or I am on a Service Node, then no hierarchy to deal with
if (! (xCAT::Utils->isServiceNode())) { # not on a servicenode
if ($sn)
{
foreach my $snkey (keys %$sn)
{
if (!grep(/$snkey/, @MNnodeipaddr))
{ # if not the MN
push @snodes, $snkey;
$snoderange[0] .= "$snkey,";
chop $snoderange[0];
}
}
}
}
# if servicenodes and (if xdcp and not pull function or xdsh -e)
# send command to service nodes first and process errors
# return an array of good service nodes
#
my $synfiledir;
if (@snodes) # service nodes
{
# if xdcp and not pull function or xdsh -e
if ((($command eq "xdcp") && ($::dcppull == 0)) or ($::dshexecute))
{
# get the directory on the servicenode to put the files in
my @syndir = xCAT::TableUtils->get_site_attribute("SNsyncfiledir");
if ($syndir[0])
{
$synfiledir = $syndir[0];
}
else
{
$synfiledir = "/var/xcat/syncfiles"; # default
}
# setup the service node with the files to xdcp to the
# compute nodes
if ($command eq "xdcp"){
$rc =
&process_servicenodes_xdcp($req, $cb, $sub_req, \@snodes,
\@snoderange, $synfiledir);
# fatal error need to stop
if ($rc != 0)
{
return;
}
} else { # xdsh -e
$rc =
&process_servicenodes_xdsh($req, $cb, $sub_req, \@snodes,
\@snoderange, $synfiledir);
# fatal error need to stop
if ($rc != 0)
{
return;
}
}
}
else
{ # command is xdsh ( not -e) or xdcp pull
@::good_SN = @snodes; # all good service nodes for now
}
}
else
{ # no servicenodes, no hierarchy
# process here on the MN
&process_request($req, $cb, $sub_req);
return;
}
# if hierarchical work still to do
# Note there may still be a mix of nodes that are service from
# the MN and nodes that are serviced from the SN, for example
# a dsh to a list of servicenodes and nodes in the noderange.
if ($syncsn == 0) # not just syncing (-s) the service nodes
# taken care of in process_servicenodes
{
foreach my $snkey (keys %$sn)
{
# if it is not being service by the MN
if (!grep(/$snkey/, @MNnodeipaddr))
{
# if it is a good SN, one ready to service the nodes
# split if a pool
# if one in the pool is good, send the command to the
# daemon
my @sn_list = split ',', $snkey;
my $goodsn=0;
foreach my $sn (@sn_list) {
if (grep(/$sn/, @::good_SN)) {
$goodsn=1;
last;
}
}
# found a good service node
if ($goodsn == 1)
{
my $noderequests =
&process_nodes($req, $sn, $snkey,$synfiledir);
push @requests, $noderequests; # build request queue
}
}
else # serviced by the MN, then
{ # just run normal dsh dcp
my $reqcopy = {%$req};
$reqcopy->{node} = $sn->{$snkey};
$reqcopy->{'_xcatdest'} = $snkey;
$reqcopy->{_xcatpreprocessed}->[0] = 1;
push @requests, $reqcopy;
}
} # end foreach
} # end syncing nodes
}
else # no nodes on the command
{ # running on local image
return [$req];
}
return \@requests;
}
#-------------------------------------------------------
=head3 parse_xdcp_cmd
Check to see if full path on file(s) input to the command
If not add currentpath to the file in the argument
=cut
#-------------------------------------------------------
sub parse_xdcp_cmd
{
my $req=shift;
my $args=$req->{arg}; # argument
my $orgargarraySize = @{$args}; # get the size of the arg array
my $currpath=$req->{cwd}->[0]; # current path when command was executed
@ARGV = @{$args}; # get arguments
my @SaveARGV=@ARGV; # save the original argument list
my %options = ();
Getopt::Long::Configure("posix_default");
Getopt::Long::Configure("no_gnu_compat");
Getopt::Long::Configure("bundling");
if (
!GetOptions(
'f|fanout=i' => \$options{'fanout'},
'F|File=s' => \$options{'File'},
'h|help' => \$options{'help'},
'i|rootimg=s' => \$options{'rootimg'},
'l|user=s' => \$options{'user'},
'n|nodes=s' => \$options{'nodes'},
'o|node-options=s' => \$options{'node-options'},
'q|show-config' => \$options{'show-config'},
'p|preserve' => \$options{'preserve'},
'r|c|node-rcp=s' => \$options{'node-rcp'},
's' => \$options{'rsyncSN'},
't|timeout=i' => \$options{'timeout'},
'v|verify' => \$options{'verify'},
'B|bypass' => \$options{'bypass'},
'Q|silent' => \$options{'silent'},
'P|pull' => \$options{'pull'},
'R|recursive' => \$options{'recursive'},
'T|trace' => \$options{'trace'},
'V|version' => \$options{'version'},
'nodestatus|nodestatus' => \$options{'nodestatus'},
'X:s' => \$options{'ignore_env'}
)
)
{
xCAT::DSHCLI->usage_dcp;
exit 1;
}
my $changedfile=0;
# check to see if -F option and if there is, is the
# input file fully defined path
my $newfile;
if (defined($options{'File'})) {
if ($options{'File'} !~ /^\//) { # not a full path
$newfile = xCAT::Utils->full_path($options{'File'},$currpath);
$changedfile=1;
} else { # it is a full path
$newfile =$options{'File'};
}
# now need to go through the original argument list and replace the file
# after the -F flag, if a file was changed
my @newarg;
my $updatefile=0;
my $arglength =0;
if ($changedfile == 1) {
foreach my $arg (@SaveARGV) {
if ($updatefile ==1) { # found the file to change
push @newarg,$newfile;
$updatefile =0;
next; # skip the old entry
}
if ($arg !~ /^-F/) {
push @newarg,$arg;
} else {
# if -F there are two format. -Ffile in one element or -F file
# in two elements of the array
$arglength= length ($arg);
if ($arglength <=2) { # this is the -F file format
push @newarg,$arg;
$updatefile=1;
} else { # this is the -Ffile format
my $n="-F";
$n .=$newfile;
push @newarg,$n;
$updatefile =0;
}
}
}
#put the new argument list on the request
@{$req->{arg}}= @newarg;
}
} # end -F option
# For xdcp ...... file1 file2 command
# what is left in the argument are the files to copy
# each from and to file needs to be checked if relative or expanded path
# If not expanded, it needs to have current path added
$changedfile =0; # resetting this but there should be only -F or a list
# or files for xdcp, not both
my @newfiles;
my $leftoverargsize=@ARGV;
if (@ARGV > 0) {
foreach my $file (@ARGV) {
if ($file !~ /^\//) { # not full path
$file = xCAT::Utils->full_path($file,$currpath);
$changedfile=1;
}
push @newfiles,$file;
}
}
# if had to add the path to a file, then need to rebuild the
# request->{args} array
if ($changedfile == 1) {
my $offset=$orgargarraySize - $leftoverargsize ;
# offset is where we start updating
foreach my $file (@newfiles) {
$req->{arg}->[$offset] = $file;
$offset ++
}
}
return $req;
}
#-------------------------------------------------------
=head3 parse_xdsh_cmd
Check to see if full path on file(s) input to the command
If not add currentpath to the file in the argument
=cut
#-------------------------------------------------------
sub parse_xdsh_cmd
{
my $req=shift;
my $args=$req->{arg}; # argument
my $currpath=$req->{cwd}->[0]; # current path when command was executed
my $orgargarraySize = @{$args}; # get the size of the arg array
@ARGV = @{$args}; # get arguments
my @SaveARGV=@ARGV; # save the original argument list
my %options = ();
Getopt::Long::Configure("posix_default");
Getopt::Long::Configure("no_gnu_compat");
Getopt::Long::Configure("bundling");
if (
!GetOptions(
'e|execute' => \$options{'execute'},
'f|fanout=i' => \$options{'fanout'},
'h|help' => \$options{'help'},
'l|user=s' => \$options{'user'},
'm|monitor' => \$options{'monitor'},
'o|node-options=s' => \$options{'node-options'},
'q|show-config' => \$options{'show-config'},
'r|node-rsh=s' => \$options{'node-rsh'},
'i|rootimg=s' => \$options{'rootimg'},
's|stream' => \$options{'streaming'},
't|timeout=i' => \$options{'timeout'},
'v|verify' => \$options{'verify'},
'z|exit-status' => \$options{'exit-status'},
'B|bypass' => \$options{'bypass'},
'c|cleanup' => \$options{'cleanup'},
'E|environment=s' => \$options{'environment'},
'I|ignore-sig|ignoresig=s' => \$options{'ignore-signal'},
'K|keysetup' => \$options{'ssh-setup'},
'L|no-locale' => \$options{'no-locale'},
'Q|silent' => \$options{'silent'},
'S|syntax=s' => \$options{'syntax'},
'T|trace' => \$options{'trace'},
'V|version' => \$options{'version'},
'devicetype=s' => \$options{'devicetype'},
'nodestatus|nodestatus' => \$options{'nodestatus'},
'sudo|sudo' => \$options{'sudo'},
'command-name|commandName=s' => \$options{'command-name'},
'command-description|commandDescription=s' =>
\$options{'command-description'},
'X:s' => \$options{'ignore_env'}
)
)
{
xCAT::DSHCLI->usage_dsh;
exit 1;
}
# elements left in the array after the parse
# these are the script and it's arguments
my $leftoverargsize=@ARGV;
my $changedfile=0;
# check to see if -e option
# change file to fully defined path
my @executecmd = @ARGV;
if (defined($options{'execute'})) {
# this can be the script name + parms
if ($executecmd[0] !~ /^\//) { # not a full path in the script name
$executecmd[0] = xCAT::Utils->full_path($executecmd[0],$currpath);
$changedfile=1;
}
# if had to add the path to the script, then need to rebuild the
# request->{args} array
if ($changedfile == 1) {
my $offset=$orgargarraySize - $leftoverargsize ;
# offset is where we start updating
foreach my $file (@executecmd) {
$req->{arg}->[$offset] = $file;
$offset ++
}
}
} # end -e option
return $req;
}
#-------------------------------------------------------
=head3 process_servicenodes_xdcp
Build the xdcp command to send to the service nodes first
Return an array of servicenodes that do not have errors
Returns error code:
if = 0, good return continue to process the
nodes.
if = 1, global error need to quit
=cut
#-------------------------------------------------------
sub process_servicenodes_xdcp
{
my $req = shift;
my $callback = shift;
my $sub_req = shift;
my $sn = shift;
my $snrange = shift;
my $synfiledir = shift;
my @snodes = @$sn;
my @snoderange = @$snrange;
my $args;
$::RUNCMD_RC = 0;
my $cmd = $req->{command}->[0];
# if xdcp -F command (input $syncsnfile) and the original synclist need
# to be rsync to the $synfiledir directory on the service nodes first
if ($::syncsnfile)
{
if (!-f $::syncsnfile)
{ # syncfile does not exist, quit
my $rsp = {};
$rsp->{error}->[0] = "File:$::syncsnfile does not exist.";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return (1); # process no service nodes
}
# xdcp rsync each of the files contained in the -F syncfile and the
# original synclist input on the -F flag to
# the service node first to the site.SNsyncfiledir directory
#change noderange to the service nodes
# sync and check for error
my @sn = ();
#build the array of all service nodes
foreach my $node (@snodes)
{
# handle multiple servicenodes for one node
my @sn_list = split ',', $node;
foreach my $snode (@sn_list) {
push @sn, $snode;
}
}
@::good_SN = @sn; # initialize all good
# run the command to the servicenodes
# xdcp <sn> -s -F <syncfile>
# don't use runxcmd, because can go straight to process_request,
# these are all service nodes. Also servicenode is taken from
# the noderes table and may not be the same name as in the nodelist
# table, for example may be an ip address.
# here on the MN
my $addreq;
$addreq->{'_xcatdest'} = $::mnname;
$addreq->{node} = \@sn;
$addreq->{noderange} = \@sn;
$addreq->{arg}->[0] = "-v";
$addreq->{arg}->[1] = "-s";
$addreq->{arg}->[2] = "-F";
$addreq->{arg}->[3] = $::syncsnfile;
$addreq->{command}->[0] = $cmd;
$addreq->{cwd}->[0] = $req->{cwd}->[0];
$addreq->{env} = $req->{env};
&process_request($addreq, $callback, $sub_req);
if ($::FAILED_NODES == 0)
{
@::good_SN = @sn; # all servicenodes were sucessful
}
else
{
@::bad_SN = @::DCP_NODES_FAILED;
# remove all failing nodes from the good list
my @tmpgoodnodes;
foreach my $gnode (@::good_SN) {
if (!grep(/$gnode/,@::bad_SN )) # if not a bad node
{
push @tmpgoodnodes, $gnode;
}
}
@::good_SN = @tmpgoodnodes;
}
} # end xdcp -F
else
{
# if other xdcp commands, and not pull function
# mk the directory on the SN to hold the files
# to be sent to the SN.
# build a command to update the service nodes
# change the destination to the tmp location on
# the service node
# hierarchical support for pull (TBD)
#make the needed directory on the service node
# create new directory for path on Service Node
# xdsh <sn> mkdir -p $SNdir
my $frompath = $req->{arg}->[-2];
$::SNpath = $synfiledir;
$::SNpath .= $frompath;
my $SNdir;
$SNdir = dirname($::SNpath); # get directory
my @sn = ();
# build list of servicenodes
foreach my $node (@snodes)
{
# handle multiple servicenodes for one node
my @sn_list = split ',', $node;
foreach my $snode (@sn_list) {
push @sn, $snode;
}
}
@::good_SN = @sn; # initialize all good
# run the command to all servicenodes
# to make the directory under the temporary
# SNsyncfiledir to hold the files that will be
# sent to the service nodes
# xdsh <sn> mkdir -p <SNsyncfiledir>/$::SNpath
my $addreq;
$addreq->{'_xcatdest'} = $::mnname;
$addreq->{node} = \@sn;
$addreq->{noderange} = \@sn;
$addreq->{arg}->[0] = "-v";
$addreq->{arg}->[1] = "mkdir ";
$addreq->{arg}->[2] = "-p ";
$addreq->{arg}->[3] = $SNdir;
$addreq->{command}->[0] = 'xdsh';
$addreq->{cwd}->[0] = $req->{cwd}->[0];
$addreq->{env} = $req->{env};
&process_request($addreq, $callback, $sub_req);
if ($::FAILED_NODES == 0)
{
@::good_SN = @sn;
}
else
{
@::bad_SN = @::DCP_NODES_FAILED;
# remove all failing nodes from the good list
my @tmpgoodnodes;
foreach my $gnode (@::good_SN) {
if (!grep(/$gnode/,@::bad_SN )) # if not a bad node
{
push @tmpgoodnodes, $gnode;
}
}
@::good_SN = @tmpgoodnodes;
}
# now xdcp file to the service node to the new
# tmp path
# for all the service nodes that are still good
my @sn = @::good_SN;
# copy the file to each good servicenode
# xdcp <sn> <file> <SNsyncfiledir/../file>
my $addreq = dclone($req); # get original request
$addreq->{arg}->[-1] = $SNdir; # change to tmppath on servicenode
$addreq->{'_xcatdest'} = $::mnname;
$addreq->{node} = \@sn;
$addreq->{noderange} = \@sn;
&process_request($addreq, $callback, $sub_req);
if ($::FAILED_NODES == 0)
{
@::good_SN = @sn ;
}
else
{
@::bad_SN = @::DCP_NODES_FAILED;
# remove all failing nodes from the good list
my @tmpgoodnodes;
foreach my $gnode (@::good_SN) {
if (!grep(/$gnode/,@::bad_SN )) # if not a bad node
{
push @tmpgoodnodes, $gnode;
}
}
@::good_SN = @tmpgoodnodes;
}
}
# 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, xdcp will not work to nodes serviced by these service nodes.";
$rsp->{data}->[0] = $msg;
xCAT::MsgUtils->message("D", $rsp, $callback);
}
return (0);
}
#-------------------------------------------------------
=head3 process_servicenodes_xdsh
Build the xdsh command to send the -e file
The executable must be copied into /var/xcat/syncfiles, and then
the command modified so that the xdsh running on the SN will cp the file
from /var/xcat/syncfiles to the compute node /tmp directory and run it.
Return an array of servicenodes that do not have errors
Returns error code:
if = 0, good return continue to process the
nodes.
if = 1, global error need to quit
=cut
#-------------------------------------------------------
sub process_servicenodes_xdsh
{
my $req = shift;
my $callback = shift;
my $sub_req = shift;
my $sn = shift;
my $snrange = shift;
my $synfiledir = shift;
my @snodes = @$sn;
my @snoderange = @$snrange;
my $args;
$::RUNCMD_RC = 0;
my $cmd = $req->{command}->[0];
# if xdsh -e <executable> command, service nodes first need
# to be rsync with the executable file to the $synfiledir
if ($::dshexecute)
{
if (!-f $::dshexecute)
{ # -e file does not exist, quit
my $rsp = {};
$rsp->{error}->[0] = "File:$::dshexecute does not exist.";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return (1); # process no service nodes
}
# xdcp the executable from the xdsh -e to the service node first
# change noderange to the service nodes
# sync to each SN and check for error
# if error do not add to good_SN array, add to bad_SN
# build a tmp syncfile with
# $::dshexecute -> $synfiledir . $::dshexecute
my $tmpsyncfile = POSIX::tmpnam . ".dsh";
my $destination=$synfiledir . $::dshexecute;
open(TMPFILE, "> $tmpsyncfile")
or die "can not open file $tmpsyncfile";
print TMPFILE "$::dshexecute -> $destination\n";
close TMPFILE;
chmod 0755, $tmpsyncfile;
# build array of all service nodes , this is to cover pools where
# an entry might actually be a comma separated list
my @sn = ();
foreach my $node (@snodes)
{
# handle multiple servicenodes for one node
my @sn_list = split ',', $node;
foreach my $snode (@sn_list) {
push @sn, $snode;
}
}
@::good_SN = @sn; # initialize all good
# sync the file to the SN /var/xcat/syncfiles directory
# (site.SNsyncfiledir)
# xdcp <sn> -s -F <tmpsyncfile>
# don't use runxcmd, because can go straight to process_request,
# these are all service nodes. Also servicenode is taken from
# the noderes table and may not be the same name as in the nodelist
# table, for example may be an ip address.
# here on the MN
my $addreq;
$addreq->{'_xcatdest'} = $::mnname;
$addreq->{node} = \@sn;
$addreq->{noderange} = \@sn;
$addreq->{arg}->[0] = "-v";
$addreq->{arg}->[1] = "-s";
$addreq->{arg}->[2] = "-F";
$addreq->{arg}->[3] = $tmpsyncfile;
$addreq->{command}->[0] = "xdcp";
$addreq->{cwd}->[0] = $req->{cwd}->[0];
$addreq->{env} = $req->{env};
&process_request($addreq, $callback, $sub_req);
if ($::FAILED_NODES == 0)
{
@::good_SN = @sn; # all servicenodes were sucessful
}
else
{
@::bad_SN = @::DCP_NODES_FAILED;
# remove all failing nodes from the good list
my @tmpgoodnodes;
foreach my $gnode (@::good_SN) {
if (!grep(/$gnode/,@::bad_SN )) # if not a bad node
{
push @tmpgoodnodes, $gnode;
}
}
@::good_SN = @tmpgoodnodes;
}
# 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} = $value;
}
# if DSH_FROM_USERID does not exist, set for internal calls
# if request->{username} exists, set DSH_FROM_USERID to it
# override input, this is what was authenticated
if (!($ENV{'DSH_FROM_USERID'})) {
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->{error}->[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) = @_;
# parse dsh input, will return
$::FAILED_NODES = 0; # this is the count
# @::DSH_NODES_FAILED array of failing nodes.
my @local_results =
xCAT::DSHCLI->parse_and_run_dsh($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) = @_;
# parse dcp input , run the command and return
$::FAILED_NODES = 0; # number of failing nodes
# @::DCP_NODES_FAILED array of failing nodes
my @local_results =
xCAT::DSHCLI->parse_and_run_dcp($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;
}