155 lines
4.7 KiB
Perl
Executable File
155 lines
4.7 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
|
|
# Copy the initrd, kernel, params, and static IP info to nodes, so they can net install
|
|
# even across vlans (w/o setting up pxe/dhcp broadcast relay). This assumes a working
|
|
# OS is on the node. This script is primarily meant to be used in the softlayer environment.
|
|
|
|
#todo: site attr for using static ip?
|
|
|
|
use strict;
|
|
use Getopt::Long;
|
|
use Data::Dumper;
|
|
|
|
# Globals - these are set once and then only read.
|
|
my $HELP;
|
|
my $VERBOSE;
|
|
|
|
my $usage = sub {
|
|
my $exitcode = shift @_;
|
|
print "Usage: pushinitrd [-?|-h|--help] [-v|--verbose] <noderange>\n\n";
|
|
if (!$exitcode) {
|
|
print "Copy the initrd, kernel, params, and static IP info to nodes, so they can net install\n";
|
|
print "even across vlans (w/o setting up pxe/dhcp broadcast relay). This assumes a working\n";
|
|
print "OS is on the node, that you've run nodeset for these nodes, and that all of the nodes\n";
|
|
print "are using the same osimage.\n";
|
|
}
|
|
exit $exitcode;
|
|
};
|
|
|
|
# Process the cmd line args
|
|
Getopt::Long::Configure("bundling");
|
|
#Getopt::Long::Configure("pass_through");
|
|
Getopt::Long::Configure("no_pass_through");
|
|
if (!GetOptions('h|?|help' => \$HELP, 'v|verbose' => \$VERBOSE)) { $usage->(1); }
|
|
|
|
if ($HELP) { $usage->(0); }
|
|
if (scalar(@ARGV) != 1) { $usage->(1); }
|
|
my $noderange = $ARGV[0];
|
|
|
|
my %bootparms = getBootParms($noderange);
|
|
|
|
copyFilesToNodes($noderange, \%bootparms);
|
|
|
|
updateGrubOnNodes($noderange, \%bootparms);
|
|
|
|
exit(0);
|
|
|
|
|
|
# Query the db for the kernel, initrd, and kcmdline attributes of the 1st node in the noderange
|
|
sub getBootParms {
|
|
my $nr = shift @_;
|
|
my %bootparms;
|
|
my @output = runcmd("nodels $nr bootparams.kernel bootparams.initrd bootparams.kcmdline");
|
|
|
|
# the attributes can be displayed in a different order than requested, so need to grep for them
|
|
my @gresults;
|
|
foreach my $a (qw(kernel initrd kcmdline)) {
|
|
my $attr = "bootparams.$a";
|
|
@gresults = grep(/^\S+:\s+$attr:/, @output);
|
|
if (!scalar(@gresults)) { die "Error: attribute $attr not defined for the noderange. Did you run 'nodeset <noderange> osimage=<osimage>' ?\n"; }
|
|
# for now just pick the 1st one. They should all be the same, except for the node name kcmdline
|
|
chomp($gresults[0]);
|
|
$gresults[0] =~ s/^\S+:\s+$attr:\s*//;
|
|
$bootparms{$a} = $gresults[0];
|
|
if ($a eq 'kcmdline') { $bootparms{$a} =~ s|/install/autoinst/\S+|/install/autoinst/<nodename>|; }
|
|
}
|
|
|
|
# get the mgmt node cluster-facing ip addr
|
|
@output = runcmd('lsdef -t site -i master -c');
|
|
chomp($output[0]);
|
|
my ($junk, $ip) = split(/=/, $output[0]);
|
|
$bootparms{mnip} = $ip;
|
|
|
|
verbose(Dumper(\%bootparms));
|
|
return %bootparms;
|
|
}
|
|
|
|
|
|
# Copy the kernel and initrd to the nodes
|
|
# Args: noderange, reference to the bootparms hash
|
|
sub copyFilesToNodes {
|
|
my $nr = shift @_;
|
|
my $bootparms = shift @_;
|
|
foreach my $a (qw(kernel initrd)) {
|
|
my $file = $bootparms->{$a};
|
|
my $localfile = "/tftpboot/$file";
|
|
# for the
|
|
my $remotefile = '/boot/' . remoteFilename($file);
|
|
print "Copying $localfile to $nr:$remotefile\n";
|
|
runcmd("xdcp $nr -p $localfile $remotefile");
|
|
}
|
|
}
|
|
|
|
|
|
# Form the remote file name, using the last 2 parts of the path, separated by "-"
|
|
sub remoteFilename {
|
|
my $f = shift @_;
|
|
$f =~ s|^.*/([^/]+)/([^/]+)$|$1-$2|;
|
|
return $f;
|
|
}
|
|
|
|
|
|
# Run the modifygrub script on the nodes to update the grub config file
|
|
# Args: noderange, reference to the bootparms hash
|
|
sub updateGrubOnNodes {
|
|
my $nr = shift @_;
|
|
my $bootparms = shift @_;
|
|
my $vtxt = ($VERBOSE ? '-v' : '');
|
|
my @output = runcmd('which modifygrub');
|
|
my $modifygrub = $output[0];
|
|
chomp($modifygrub);
|
|
my $cmd = "xdsh $nr -e $modifygrub $vtxt " . remoteFilename($bootparms->{kernel}) . ' ' . remoteFilename($bootparms->{initrd}) . ' ';
|
|
# we need to quote the kernel parms, both here when passing it to xdsh, and on the node
|
|
# when xdsh is passing it to modifygrub. The way to get single quotes inside single quotes
|
|
# is to quote each of the outer single quotes with double quotes.
|
|
$cmd .= q("'"') . $bootparms->{kcmdline} . q('"'");
|
|
$cmd .= ' ' . $bootparms->{mnip};
|
|
print "Running modifygrub on $nr to update the grub configuration.\n";
|
|
runcmd($cmd);
|
|
}
|
|
|
|
|
|
# Pring msg only if -v was specified
|
|
sub verbose { if ($VERBOSE) { print shift, "\n"; } }
|
|
|
|
|
|
|
|
# Run a command. If called in the context of return an array, it will capture the output
|
|
# of the cmd and return it. Otherwise, it will display the output to stdout.
|
|
# If the cmd has a non-zero rc, this function will die with a msg.
|
|
sub runcmd
|
|
{
|
|
my ($cmd) = @_;
|
|
my $rc;
|
|
|
|
$cmd .= ' 2>&1' ;
|
|
verbose($cmd);
|
|
|
|
my @output;
|
|
if (wantarray) {
|
|
@output = `$cmd`;
|
|
$rc = $?;
|
|
}
|
|
else {
|
|
system($cmd);
|
|
$rc = $?;
|
|
}
|
|
|
|
if ($rc) {
|
|
$rc = $rc >> 8;
|
|
if ($rc > 0) { die "Error: rc $rc return from cmd: $cmd\n"; }
|
|
else { die "Error: system error returned from cmd: $cmd\n"; }
|
|
}
|
|
elsif (wantarray) { return @output; }
|
|
}
|