xcat-core/xCAT-server-2.0/lib/xcat/plugins/conserver.pm
2008-04-24 18:08:41 +00:00

440 lines
12 KiB
Perl

# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
#TODO: delete entries not being refreshed if no noderange
package xCAT_plugin::conserver;
use xCAT::Table;
use xCAT::Utils;
use Getopt::Long;
use Sys::Hostname;
use strict;
use Data::Dumper;
my @cservers = qw(mrv cyclades);
my %termservers; #list of noted termservers
my $usage_string=
" makeconservercf noderange
makeconservercf [-l|--local]
makeconservercf -h|--help
makeconservercf -v|--version
-l|--local The conserver gets set up only on the local host.
The default goes down to all the conservers on
the server nodes and set them up.
-h|--help Display this usage statement.
-v|--version Display the version number.";
my $version_string="Version 2.0";
sub handled_commands {
# setup the conserver.cf when xcatd on the service node starts the first time
# make sure cnserver is up and running when xcatd starts on the service node
enableConsOnSN();
return {
makeconservercf => "conserver"
}
}
sub preprocess_request {
my $request = shift;
if ($request->{_xcatdest}) { return [$request]; } #exit if preprocessed
my $callback=shift;
my @requests;
my $noderange = $request->{node}; #Should be arrayref
#display usage statement if -h
my $extrargs = $request->{arg};
my @exargs=($request->{arg});
if (ref($extrargs)) {
@exargs=@$extrargs;
}
@ARGV=@exargs;
my $isSN=xCAT::Utils->isServiceNode();
my @hostinfo=xCAT::Utils->determinehostname();
my %iphash=();
foreach(@hostinfo) { $iphash{$_}=1;}
$Getopt::Long::ignorecase=0;
#$Getopt::Long::pass_through=1;
if(!GetOptions(
'l|local' => \$::LOCAL,
'h|help' => \$::HELP,
'v|version' => \$::VERSION)) {
$request = {};
return;
}
if ($::HELP) {
$callback->({data=>$usage_string});
$request = {};
return;
}
if ($::VERSION) {
$callback->({data=>$version_string});
$request = {};
return;
}
if ($::LOCAL) {
if ($noderange && @$noderange>0) {
$callback->({data=>"Invalide option -l or --local when there are nodes specofied."});
$request = {};
return;
}
}
# get site master
my $master=xCAT::Utils->get_site_Master();
if (!$master) { $master=hostname(); }
# get conserver for each node
my %cons_hash=();
my $hmtab = xCAT::Table->new('nodehm');
my @items;
my $allnodes=1;
if ($noderange && @$noderange>0) {
$allnodes=0;
foreach my $node (@$noderange) {
my $ent=$hmtab->getNodeAttribs($node,['node', 'conserver']);
push @items,$ent;
}
} else {
$allnodes=1;
@items = $hmtab->getAllNodeAttribs(['node', 'conserver']);
}
my @nodes=();
foreach (@items) {
if (defined($_->{conserver})) { push @{$cons_hash{$_->{conserver}}{nodes}}, $_->{node};}
else { push @{$cons_hash{$master}{nodes}}, $_->{node};}
push @nodes,$_->{node};
}
#send all nodes to the MN
if (!$isSN) { #
my $reqcopy = {%$request};
$reqcopy->{'_xcatdest'} = $master;
$reqcopy->{'_allnodes'} = $allnodes; # the original command comes with nodes or not
if ($allnodes==1) { @nodes=(); }
$reqcopy->{node} = \@nodes;
push @requests, $reqcopy;
if ($::LOCAL) { return \@requests; }
}
# send to SN
foreach my $cons (keys %cons_hash) {
#print "cons=$cons\n";
my $doit=0;
if ($isSN) {
if (exists($iphash{$cons})) { $doit=1; }
} else {
if (!exists($iphash{$cons})) { $doit=1; }
}
if ($doit) {
my $reqcopy = {%$request};
$reqcopy->{'_xcatdest'} = $cons;
$reqcopy->{'_allnodes'} = $allnodes; # the original command comes with nodes or not
$reqcopy->{node} = $cons_hash{$cons}{nodes};
my $no=$reqcopy->{node};
#print "node=@$no\n";
push @requests, $reqcopy;
}
}
return \@requests;
}
sub process_request {
my $req = shift;
my $cb = shift;
if ($req->{command}->[0] eq "makeconservercf") {
makeconservercf($req,$cb);
}
}
sub docfheaders {
# Put in standard headers common to all conserver.cf files
my $content = shift;
my $numlines = @$content;
my @meat = grep(!/^#/,@$content);
unless (grep(/^config \* {/,@meat)) {
push @$content,"config * {\n";
push @$content," sslrequired yes;\n";
push @$content," sslauthority /etc/xcat/ca/ca-cert.pem;\n";
push @$content," sslcredentials /etc/xcat/cert/server-cred.pem;\n";
push @$content,"}\n";
}
unless (grep(/^default full/,@meat)) {
push @$content,"default full { rw *; }\n";
}
unless (grep(/^default cyclades/,@meat)) {
push @$content,"default cyclades { type host; portbase 7000; portinc 1; }\n"
}
unless (grep(/^default mrv/,@meat)) {
push @$content,"default mrv { type host; portbase 2000; portinc 100; }\n"
}
unless (grep(/^access \*/,@meat)) {
#push @$content,"#xCAT BEGIN ACCESS\n";
push @$content,"access * {\n";
push @$content," trusted 127.0.0.1;\n";
if (xCAT::Utils->isServiceNode()) {
my $master=xCAT::Utils->get_site_Master();
push @$content, " trusted $master;\n";
}
push @$content,"}\n";
#push @$content,"#xCAT END ACCESS\n";
}
unless (grep(/^default \*/,@meat)) {
push @$content,"default * {\n";
push @$content," logfile /var/log/consoles/&;\n";
push @$content," timestamp 1hab;\n";
push @$content," include full;\n";
push @$content," master localhost;\n";
push @$content,"}\n";
}
}
sub makeconservercf {
my $req = shift;
%termservers = (); #clear hash of existing entries
my $cb = shift;
my $nodes = $req->{node};
my $cfile;
my @filecontent;
open $cfile,'/etc/conserver.cf';
while (<$cfile>) {
push @filecontent,$_;
}
close $cfile;
docfheaders(\@filecontent);
my $isSN=xCAT::Utils->isServiceNode();
my @hostinfo=xCAT::Utils->determinehostname();
my %iphash=();
foreach(@hostinfo) {$iphash{$_}=1;}
#print "process_request nodes=@$nodes\n";
my $hmtab = xCAT::Table->new('nodehm');
my @cfgents = $hmtab->getAllNodeAttribs(['mgt','cons','conserver']);
#cfgents should now have all the nodes, so we can fill in our hashes one at a time.
foreach (@cfgents) {
unless ($_->{cons}) {$_->{cons} = $_->{mgt};} #populate with fallback
my $cmeth=$_->{cons};
if (grep(/^$cmeth$/,@cservers)) { #terminal server, more attribs needed
my $node = $_->{node};
my $tent = $hmtab->getNodeAttribs($node,["termserver","termport"]);
$_->{termserver} = $tent->{termserver};
$termservers{$tent->{termserver}} = 1;
$_->{termport}= $tent->{termport};
}
}
if (($nodes and @$nodes > 0) or $req->{noderange}->[0]) {
# strip all xCAT configured stuff from config if the original command was for all nodes
if ($req->{_allnodes}==1) {zapcfg(\@filecontent);}
foreach (@$nodes) {
my $node = $_;
foreach (@cfgents) {
if ($_->{node} eq $node) {
if ($_->{termserver} and $termservers{$_->{termserver}}) {
dotsent($_,\@filecontent);
delete $termservers{$_->{termserver}}; #prevent needless cycles being burned
}
donodeent($_,\@filecontent);
}
}
}
} else { #no nodes specified, do em all up
zapcfg(\@filecontent); # strip all xCAT configured stuff from config
# filter out node types without console support
my $typetab = xCAT::Table->new('nodetype');
my %type;
if ( defined($typetab)) {
my @ents = $typetab->getAllNodeAttribs([qw(node nodetype)]);
foreach (@ents) {
$type{$_->{node}}=$_->{nodetype};
}
}
foreach (@cfgents) {
my $keepdoing=0;
if ($isSN && $_->{conserver} && exists($iphash{$_->{conserver}})) {
$keepdoing=1; #only hanlde the nodes that use this SN as the conserver
}
if (!$isSN) { $keepdoing=1;} #handle all for MN
if ($keepdoing) {
if ($_->{termserver} and $termservers{$_->{termserver}}) {
dotsent($_,\@filecontent);
delete $termservers{$_->{termserver}}; #prevent needless cycles being burned
}
if ( $type{$_->{node}} !~ /fsp|bpa|hmc|ivm/ ) {
donodeent($_,\@filecontent);
}
}
}
}
open $cfile,'>','/etc/conserver.cf';
foreach (@filecontent) {
print $cfile $_;
}
close $cfile;
#restart conserver daemon
my $cmd = "/etc/rc.d/init.d/conserver stop";
xCAT::Utils->runcmd($cmd, -1);
$cmd = "/etc/rc.d/init.d/conserver start";
xCAT::Utils->runcmd($cmd, -1);
}
sub dotsent {
my $cfgent = shift;
my $tserv = $cfgent->{termserver};
my $content = shift;
my $idx = 0;
my $toidx = -1;
my $skip = 0;
my $skipnext = 0;
while ($idx < $#$content) { # Go through and delete that which would match my entry
if ($content->[$idx] =~ /^#xCAT BEGIN $tserv TS/) {
$toidx=$idx; #TODO put it back right where I found it
$skip = 1;
$skipnext=1;
} elsif ($content->[$idx] =~ /^#xCAT END $tserv TS/) {
$skipnext = 0;
}
if ($skip) {
splice (@$content,$idx,1);
} else {
$idx++;
}
$skip = $skipnext;
}
push @$content,"#xCAT BEGIN $tserv TS\n";
push @$content,"default $tserv {\n";
push @$content," include ".$cfgent->{cons}.";\n";
push @$content," host $tserv;\n";
push @$content,"}\n";
push @$content,"#xCAT END $tserv TS\n";
}
sub donodeent {
my $cfgent = shift;
my $node = $cfgent->{node};
my $content = shift;
my $idx=0;
my $toidx=-1;
my $skip = 0;
my $skipnext = 0;
my $isSN=xCAT::Utils->isServiceNode();
while ($idx < $#$content) { # Go through and delete that which would match my entry
if ($content->[$idx] =~ /^#xCAT BEGIN $node CONS/) {
$toidx=$idx; #TODO put it back right where I found it
$skip = 1;
$skipnext=1;
} elsif ($content->[$idx] =~ /^#xCAT END $node CONS/) {
$skipnext = 0;
}
if ($skip) {
splice (@$content,$idx,1);
} else {
$idx++;
}
$skip = $skipnext;
}
push @$content,"#xCAT BEGIN $node CONS\n";
push @$content,"console $node {\n";
#if ($cfgent->{cons}
my $cmeth=$cfgent->{cons};
#print $cmeth."\n";
if (grep(/^$cmeth$/,@cservers)) {
push @$content," include ".$cfgent->{termserver}.";\n";
push @$content," port ".$cfgent->{termport}.";\n";
if ((!$isSN) && ($cfgent->{conserver})) { # let the master handle it
push @$content," master ".$cfgent->{conserver}.";\n";
}
} else { #a script method...
push @$content," type exec;\n";
if ((!$isSN) && ($cfgent->{conserver})) { # let the master handle it
push @$content," master ".$cfgent->{conserver}.";\n";
} else { # handle it here
push @$content," exec ".$::XCATROOT."/share/xcat/cons/".$cmeth." ".$node.";\n"
}
}
push @$content,"}\n";
push @$content,"#xCAT END $node CONS\n";
}
sub zapcfg {
my $content = shift;
my $idx=0;
my $toidx=-1;
my $skip = 0;
my $skipnext = 0;
while ($idx <= $#$content) { # Go through and delete that which would match my entry
if ($content->[$idx] =~ /^#xCAT BEGIN/) {
$toidx=$idx; #TODO put it back right where I found it
$skip = 1;
$skipnext=1;
} elsif ($content->[$idx] =~ /^#xCAT END/) {
$skipnext = 0;
}
if ($skip) {
splice (@$content,$idx,1);
} else {
$idx++;
}
$skip = $skipnext;
}
}
#--------------------------------------------------------------------------------
=head3 enableConsOnSN
It configures the conserver on the service node if it is not configured yet.
It brings up the conserver daemon when xcatd starts.
Arguments:
none
Returns:
0 for successful.
non-0 for not successful.
=cut
#--------------------------------------------------------------------------------
sub enableConsOnSN {
my $rc = 0;
if (xCAT::Utils->isServiceNode()) {
my @nodeinfo = xCAT::Utils->determinehostname;
my $nodename = pop @nodeinfo; # get hostname
my @nodeipaddr = @nodeinfo; # get ip addresses
my $service = "cons";
$rc = xCAT::Utils->isServiceReq($nodename, $service, \@nodeipaddr);
if ($rc == 1) {
# service needed on this Service Node
$rc = &setup_CONS($nodename); # setup CONS
if ($rc == 0) {
xCAT::Utils->update_xCATSN($service);
}
}
else {
if ($rc == 2) { # already setup, just start the daemon
# start conserver
my $cmd = "/etc/rc.d/init.d/conserver start";
xCAT::Utils->runcmd($cmd, -1);
}
}
}
}
1;