73cf5d9ac2
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@3055 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
380 lines
8.4 KiB
Perl
Executable File
380 lines
8.4 KiB
Perl
Executable File
#!/usr/bin/perl
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# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
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#(C)IBM Corp
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#
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#-----------------------------------------------------------------------------
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=head1 servicenode
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This updates the service node with files necessary to access the
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database on the MasterNode and restarts the xcat daemon
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On AIX systems this does the service node configuration.
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=cut
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#-----------------------------------------------------------------------------
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BEGIN
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{
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$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
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}
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use lib "$::XCATROOT/lib/perl";
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# MAIN
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use strict;
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use IO::Socket;
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use IO::Socket::SSL;
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# MAIN
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my $rc=0;
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my $msg="";
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$::osname = `uname`;
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chomp $::osname;
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$::sdate = `/bin/date`;
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chomp $::sdate;
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$::hname = `hostname`;
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chomp $::hname;
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if ($::osname eq 'AIX')
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{
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# AIX service node setup
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$rc = &setupAIXsn;
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if ( $rc != 0) {
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my $msg="$::sdate servicenode: One or more errors occurred when attempting to configure node $::hname as an xCAT service node.\n";
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# print "$msg\n";
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`logger -t xcat $msg`;
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}
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}
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else
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{
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# Linux setup
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# remove OpenIPMI-tools and tftp
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# install xcat from /install/xcat
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# Copy Certificates, and config file to apprpriate directories
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# from /install and restart xcatd
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&runcmd("rpm -e OpenIPMI-tools");
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&runcmd("rpm -e tftp-server");
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if ($ENV{'NODESETSTATE'} eq "install")
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{
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$msg = "Installing xCAT";
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`logger -t xcat $msg`;
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&runcmd("rpm -ivh /xcatpost/xcat/RPMS/*/*.rpm");
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}
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&runcmd("/opt/xcat/sbin/copycerts");
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}
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exit $rc;
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#
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# Subroutines
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#
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# run the command
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sub runcmd
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{
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my ($cmd) = @_;
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my $rc=0;
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$cmd .= ' 2>&1' ;
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my $outref = [];
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@$outref = `$cmd`;
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if ($?)
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{
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$rc = $? >> 8;
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if ($rc > 0)
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{
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my $msg="$cmd returned rc=$rc @$outref\n";
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`logger -t xcat $msg`;
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}
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}
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return 0;
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}
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# do AIX service node setup
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sub setupAIXsn
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{
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my $error=0;
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# get the name of my service node/NIM master from the MASTER env var
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$::servnode = $ENV{'MASTER'};
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# makes it a service node
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if (&runcmd("touch /etc/xCATSN") != 0 ) {
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$msg = "$::sdate servicenode: Could not touch /etc/xCATSN\n";
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`logger -t xcat $msg`;
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}
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# make sure we don't have xCATMN file
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if (-f "/etc/xCATMN") {
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if (&runcmd("rm /etc/xCATMN") != 0 ) {
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$msg = "$::sdate servicenode: Could not remove /etc/xCATMN\n";
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`logger -t xcat $msg`;
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}
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}
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# call copycerts
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if (&runcmd("/opt/xcat/sbin/copycerts") != 0) {
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$msg = "$::sdate servicenode: Could not run copycerts.\n";
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`logger -t xcat $msg`;
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}
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# get the xCAT credentials from the server
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&getcreds;
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# start xcatd
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if (&runcmd("/opt/xcat/sbin/xcatd &") != 0) {
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$msg = "$::sdate servicenode: Could not start xcatd.\n";
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`logger -t xcat $msg`;
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}
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# add xcatd to /etc/inittab???
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my $mkitab_cmd = 'mkitab "xcatd:2:once:/opt/xcat/sbin/xcatd > /dev/console 2>&1"';
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if (&runcmd($mkitab_cmd) != 0) {
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# error might just mean that the entry is already there!
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# $msg = "$::sdate servicenode: Could not add xcatd to /etc/inittab.\n";
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# `logger -t xcat $msg`;
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}
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# set ulimit - so we can copy over large files - like spot
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if (&runcmd("/usr/bin/chuser fsize=-1 root") != 0) {
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$msg = "$::sdate servicenode: Could not change ulimit\n";
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`logger -t xcat $msg`;
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}
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# do nim master setup - master fileset already installed
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if (&runcmd("/usr/sbin/nim_master_setup -a mk_resource=no") != 0) {
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$msg = "$::sdate servicenode: Could not run nim_master_setup.\n";
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`logger -t xcat $msg`;
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}
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#
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# TODO - can configure NIM to use SSL - "nimconfig -c"
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# !!!!! can't do diskless nodes w/ nimsh & SSL enabled!!!!
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#
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return 0;
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}
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#####################################################
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#
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# getcreds
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# Get xCAT credentials and DB cfgloc file
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#
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#####################################################
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sub getcreds
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{
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my $response=&getresponse("xcat_client_cred");
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if (defined ($response) ) {
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my $fd;
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my $filename = "/.xcat/client-cred.pem";
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&runcmd("mkdir -p /.xcat");
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&runcmd("chmod 700 /.xcat > /dev/null 2>&1");
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open($fd, '>',$filename);
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print $fd $response;
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close($fd);
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# set the permissions
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my $cmd = "chmod 600 $filename > /dev/null 2>&1";
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&runcmd($cmd);
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}
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else {
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$msg = "$::sdate servicenode: Could not get client-cred.pem file.\n";
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`logger -t xcat $msg`;
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}
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my $response=&getresponse("xcat_server_cred");
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if (defined ($response) ) {
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my $fd;
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my $filename = "/etc/xcat/cert/server-cred.pem";
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&runcmd("mkdir -p /etc/xcat/cert");
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open($fd, '>',$filename);
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print $fd $response;
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close($fd);
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# set the permissions
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my $cmd = "chmod 600 /etc/xcat/cert/* > /dev/null 2>&1";
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&runcmd($cmd);
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}
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else {
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$msg = "$::sdate servicenode: Could not get server-cred.pem file.\n";
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`logger -t xcat $msg`;
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}
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my $response=&getresponse("xcat_cfgloc");
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if (defined ($response) ) {
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# need to change entry to use the name of the server as
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# know by this node
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my ($begin, $tmp) = split(';', $response);
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my ($tmp2, $end, $end2) = split('\|', $tmp);
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my ($tmp3, $oldserv) = split('=', $tmp2);
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my $newstr = "$begin;$tmp3=$::servnode|$end|$end2";
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my $fd;
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my $filename = "/etc/xcat/cfgloc";
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&runcmd("mkdir -p /etc/xcat");
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open($fd, '>',$filename);
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print $fd $newstr;
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close($fd);
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# set the permissions
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my $cmd = "chmod 600 $filename > /dev/null 2>&1";
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&runcmd($cmd);
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}
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else {
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$msg = "$::sdate servicenode: Could not get cfgloc file.\n";
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`logger -t xcat $msg`;
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}
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return 0;
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}
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#####################################################
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#
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# getresponse
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# Request info from xcatd on the management node
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#
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# - uses SSL socket on port 3001 to connect to MN xcatd
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# to make the request for info
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#
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#####################################################
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sub getresponse
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{
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my ($req) = @_;
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my $port = "3001";
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my $node = $ENV{'NODE'};
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# open listener connection to wait for check from management node
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my $lpid = &openlistener();
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# open a socket to request credentials
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my $sock = IO::Socket::SSL->new(
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PeerAddr => $::servnode,
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PeerPort => $port,
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Proto => 'tcp',
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);
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# try a few more times
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my $times=1;
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while (!$sock) {
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sleep(2);
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$times++;
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$sock = IO::Socket::SSL->new(
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PeerAddr => $::servnode,
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PeerPort => $port,
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Proto => 'tcp',
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);
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if ($times == 5) {
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last;
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}
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}
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unless ($sock) {
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my $msg = "servicenode: Cannot connect to host \'$::servnode\'\n";
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`logger -t xcat $msg`;
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print $msg;
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return undef;
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}
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# request must be in XML format
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print $sock "<xcatrequest>\n";
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print $sock " <command>getcredentials</command>\n";
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print $sock " <arg>$req</arg>\n";
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print $sock " <callback_port>300</callback_port>\n";
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print $sock "</xcatrequest>\n";
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#TODO - do we have to try again after waiting for a bit????
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my $response='';
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my $line;
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while (defined ($line = <$sock>)) {
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# skip xml tags
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next if ($line =~ /^\s*</);
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# once we get to serverdone we have the whole response
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if ($line =~ m/<\/serverdone>/) {
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last:
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}
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$response .= $line;
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}
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close ($sock);
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#print "resp = \'$response\'\n";
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kill 2, $lpid;
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if ($response) {
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return $response;
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}
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return undef;
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}
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#####################################################
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#
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# openlistener
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# - fork a child process to respond to a check from the MN
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#
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#####################################################
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sub openlistener
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{
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my $node = $ENV{'NODE'};
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require xCAT::Utils;
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# fork a child process to open a socket to listen for communication
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# from the server
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my $pid = xCAT::Utils->xfork;
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unless (defined $pid) {
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# fork failed
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$msg = "servicenode: Could not fork process.\n";
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`logger -t xcat $msg`;
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#print $msg;
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return undef;
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}
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if ($pid != 0) {
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# This is the parent process, just return
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return $pid;
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}
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my $listener = IO::Socket::INET->new(
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LocalPort => '300',
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Proto => 'tcp',
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Listen => '64',
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Reuse => 1
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);
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unless ($listener) {
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my $msg = "servicenode: Cannot open socket on \'$node\'\n";
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`logger -t xcat $msg`;
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print $msg;
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exit 1;
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}
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# xcatd sends a quick req to see if we are really asking
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# for info - this listener checks for the req and says ok
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my $client;
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while ($client = $listener->accept()) {
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# $client is the new connection
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my $text=<$client>;
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# see if we got "CREDOKBYYOU?"
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if ($text =~ /CREDOKBYYOU?/) {
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print $client "CREDOKBYME";
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close($client);
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close($listener);
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exit 0;
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}
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close($client);
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}
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close($client);
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close($listener);
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exit 0;
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}
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