xcat-core/xCAT-server/lib/xcat/plugins/zone.pm

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2014-02-13 12:54:10 +00:00
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#-------------------------------------------------------
=head1
xCAT plugin package to handle mkzone,chzone,rmzone commands
Supported command:
mkzone,chzone,rmzone - manage xcat cluster zones
=cut
#-------------------------------------------------------
package xCAT_plugin::zone;
BEGIN
{
$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : -d '/opt/xcat' ? '/opt/xcat' : '/usr';
}
use strict;
require xCAT::Utils;
require xCAT::Zone;
require xCAT::MsgUtils;
require xCAT::Table;
use xCAT::NodeRange;
use xCAT::NodeRange qw/noderange abbreviate_noderange/;
use Getopt::Long;
#-------------------------------------------------------
=head3 handled_commands
Return list of commands handled by this plugin
=cut
#-------------------------------------------------------
sub handled_commands
{
return {mkzone => "zone",
chzone => "zone",
rmzone => "zone",
};
}
#-------------------------------------------------------
=head3 process_request
Process the command, this only runs on the management node
=cut
#-------------------------------------------------------
sub process_request
{
my $request = shift;
my $callback = shift;
my $sub_req = shift;
$::CALLBACK = $callback;
my $command = $request->{command}->[0];
my $rc=0;
# the directory which will contain the zone keys
my $keydir="/etc/xcat/sshkeydir/";
# check if Management Node, if not error
unless (xCAT::Utils->isMN())
{
my $rsp = {};
$rsp->{error}->[0] = "The $command may only be run on the Management Node.";
xCAT::MsgUtils->message("E", $rsp, $callback, 1);
return 1;
}
# test to see if any parms
if (scalar($request->{arg} == 0)) {
my $rsp = {};
$rsp->{error}->[0] =
"No parameters input to the $command command, see man page for syntax.";
xCAT::MsgUtils->message("E", $rsp, $callback);
exit 1;
}
my $args = $request->{arg};
@ARGV = @{$args}; # get arguments
my %options = ();
$Getopt::Long::ignorecase = 0;
Getopt::Long::Configure("bundling");
if (
!GetOptions(
'a|noderange=s' => \$options{'noderange'},
'defaultzone|defaultzone' => \$options{'defaultzone'},
'g|assigngrp' => \$options{'assigngroup'},
'f|force' => \$options{'force'},
'h|help' => \$options{'help'},
'k|sshkeypath=s' => \$options{'sshkeypath'},
'K|genkeys' => \$options{'gensshkeys'},
'v|version' => \$options{'version'},
'V|Verbose' => \$options{'verbose'},
)
)
{
&usage($callback,$command);
exit 1;
}
if ($options{'help'})
{
&usage($callback,$command);
exit 0;
}
if ($options{'version'})
{
my $version = xCAT::Utils->Version();
my $rsp = {};
$rsp->{data}->[0] = $version;
xCAT::MsgUtils->message("I", $rsp, $callback);
exit 0;
}
# test to see if the zonename was input
if (scalar(@ARGV) == 0) {
my $rsp = {};
$rsp->{error}->[0] =
"zonename not specified, see man page for syntax.";
xCAT::MsgUtils->message("E", $rsp, $callback);
exit 1;
} else {
$request->{zonename} = $ARGV[0];
}
# save input noderange
if ($options{'noderange'}) {
$request->{noderange}->[0] = $options{'noderange'};
}
if ($options{'verbose'})
{
$::VERBOSE = "yes";
}
if ($command eq "mkzone")
{
$rc=mkzone($request, $callback,\%options,$keydir);
}
if ($command eq "chzone")
{
$rc=chzone($request, $callback,\%options,$keydir);
}
if ($command eq "rmzone")
{
$rc=rmzone($request, $callback,\%options,$keydir);
}
my $rsp = {};
if ($rc ==0) {
$rsp->{info}->[0] = "The $command ran successfully.";
xCAT::MsgUtils->message("I", $rsp, $callback);
} else {
$rsp->{info}->[0] = "The $command had errors.";
xCAT::MsgUtils->message("E", $rsp, $callback);
}
return $rc;
}
#-------------------------------------------------------
=head3
Parses and runs mkzone
=cut
#-------------------------------------------------------
sub mkzone
{
my ($request, $callback,$options,$keydir) = @_;
my $rc=0;
# already checked but lets do it again, need a zonename, it is the only required parm
if (!($request->{zonename})) {
my $rsp = {};
$rsp->{error}->[0] =
"zonename not specified, see man page for syntax.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
# test for -g, if no noderange this is an error
if (( ! defined($$options{'noderange'})) && ($$options{'assigngroup'})) {
my $rsp = {};
$rsp->{error}->[0] =
" The -g flag requires a noderange ( -a).";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
# check to see if the input zone already exists
if (xCAT::Zone->iszonedefined($request->{zonename})) {
my $rsp = {};
$rsp->{error}->[0] =
" zonename: $request->{zonename} already defined, use chzone or rmzone to change or remove it.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
# Create path to generated ssh keys
$keydir .= $request->{zonename};
# update the zone table
$rc=updatezonetable($request, $callback,$options,$keydir);
if ($rc == 0) { # zone table setup is ok
$rc=updatenodelisttable($request, $callback,$options,$keydir);
if ($rc == 0) { # zone table setup is ok
# generate root ssh keys
$rc=gensshkeys($request, $callback,$options,$keydir);
if ($rc != 0) {
return 1;
}
}
}
return $rc;
}
#-------------------------------------------------------
=head3
Parses and runs chzone
=cut
#-------------------------------------------------------
sub chzone
{
my ($request, $callback,$options,$keydir) = @_;
# my $rsp = {};
#xCAT::MsgUtils->message("I", $rsp, $callback);
return 0;
}
#-------------------------------------------------------
=head3
Parses and runs rmzone
=cut
#-------------------------------------------------------
sub rmzone
{
my ($request, $callback,$options,$keydir) = @_;
# my $rsp = {};
#xCAT::MsgUtils->message("I", $rsp, $callback);
return 0;
}
#-------------------------------------------------------------------------------
=head3
usage
puts out zone command usage message
Arguments:
None
Returns:
Globals:
Error:
None
=cut
#-------------------------------------------------------------------------------
sub usage
{
my ($callback, $command) = @_;
my $usagemsg1="";
my $usagemsg2="";
if ($command eq "mkzone") {
$usagemsg1 = " mkzone -h \n mkzone -v \n";
$usagemsg2 = " mkzone <zonename> [-V] [--defaultzone] [-k <full path to the ssh RSA private key] \n [-a <noderange>] [-g] [-f]";
} else {
if ($command eq "chzone") {
$usagemsg1 = " chzone -h \n chzone -v \n";
$usagemsg2 = " chzone <zonename> [-V] [--defaultzone] [-k <full path to the ssh RSA private key] \n [-K] [-a <noderange>] [-r <noderange>] [-g] ";
} else {
if ($command eq "rmzone") {
$usagemsg1 = " rmzone -h \n rmzone -v \n";
$usagemsg2 = " rmzone <zonename> [-g]";
}
}
}
my $usagemsg .= $usagemsg1 .= $usagemsg2 .= "\n";
if ($callback)
{
my $rsp = {};
$rsp->{data}->[0] = $usagemsg;
xCAT::MsgUtils->message("I", $rsp, $callback);
}
else
{
xCAT::MsgUtils->message("I", $usagemsg);
}
return;
}
#-------------------------------------------------------
=head3
generate the ssh keys and store them in /etc/xcat/sshkeys/<zonename>
=cut
#-------------------------------------------------------
sub gensshkeys
{
my ($request, $callback,$options,$keydir) = @_;
my $rc=0;
# generate root ssh keys
# Did they input a path to existing RSA keys
my $rsakey;
my $zonename=$request->{zonename};
if ($$options{'sshkeypath'}) {
# check to see if RSA keys exists
$rsakey= $$options{'sshkeypath'} .= "/id_rsa";
if (!(-e $rsakey)){ # if it does not exist error out
my $rsp = {};
$rsp->{error}->[0] =
"Input $rsakey does not exist. Cannot generate the ssh root keys for the zone.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
}
$rc =xCAT::Zone->genSSHRootKeys($callback,$keydir, $zonename,$rsakey);
if ($rc !=0) {
my $rsp = {};
$rsp->{error}->[0] =
" Failure generating the ssh root keys for the zone.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
return $rc;
}
#-------------------------------------------------------
=head3
updatezonetable
Add the new zone to the zone table, check if already there and
error - use either chzone or -f to override default
=cut
#-------------------------------------------------------
sub updatezonetable
{
my ($request, $callback,$options,$keydir) = @_;
my $rc=0;
my $zoneentry;
my $tab = xCAT::Table->new("zone");
if ($tab)
{
my %tb_cols;
$tb_cols{sshkeydir} = $keydir;
my $zonename=$request->{zonename};
if ( $$options{'defaultzone'}) { # set the default
# check to see if a default already defined
my $curdefaultzone = xCAT::Zone->getdefaultzone;
if (!(defined ($curdefaultzone))) { # no default defined
$tb_cols{defaultzone} ="yes";
} else { # already a default
if ($$options{'force'}) { # force the default
$tb_cols{defaultzone} ="yes";
$tab->setAttribs({zonename => $zonename}, \%tb_cols);
# now change the old default zone to not be the default
my %tb1_cols;
$tb1_cols{defaultzone} ="no";
$tab->setAttribs({zonename => $curdefaultzone}, \%tb1_cols);
$tab->commit();
$tab->close();
} else { # no force this is an error
my $rsp = {};
$rsp->{error}->[0] =
" Failure setting default zone. The defaultzone $curdefaultzone already exists. Use the -f flag if you want to override the current default zone.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
}
} else { # not a default zone
$tb_cols{defaultzone} ="no";
$tab->setAttribs({zonename => $zonename}, \%tb_cols);
$tab->commit();
$tab->close();
}
} else {
my $rsp = {};
$rsp->{error}->[0] =
" Failure opening the zone table.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
return $rc;
}
#-------------------------------------------------------
=head3
updatenodelisttable
Add the new zonename attribute to any nodes in the noderange ( if a noderange specified)
Add zonename group to nodes in the noderange if -g flag.
=cut
#-------------------------------------------------------
sub updatenodelisttable
{
my ($request, $callback,$options,$keydir) = @_;
my $rc=0;
# test for a noderange, if not supplied nothing to do
if ( ! defined($$options{'noderange'})) {
return 0;
}
my $zonename=$request->{zonename};
# there is a node range. update the nodelist table
# if -g add zonename group also
my $group=$$options{'noderange'};
my @nodes = xCAT::NodeRange::noderange($request->{noderange}->[0]);
my $tab = xCAT::Table->new("nodelist");
if ($tab)
{
# if -g then add the zonename to the group attribute on each node
if ($$options{'assigngroup'}){
foreach my $node (@nodes) {
xCAT::TableUtils->updatenodegroups($node,$tab,$zonename);
}
}
# set the nodelist zonename attribute to the zonename for all nodes in the range
$tab-> setNodesAttribs(\@nodes, { zonename => $zonename });
$tab->commit();
$tab->close();
} else {
my $rsp = {};
$rsp->{error}->[0] =
" Failure opening the nodelist table.";
xCAT::MsgUtils->message("E", $rsp, $callback);
return 1;
}
return $rc;
}
1;