293 lines
11 KiB
Perl
Executable File
293 lines
11 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 $WAITTIME;
|
|
my $NOAUTOINST;
|
|
|
|
my $usage = sub {
|
|
my $exitcode = shift @_;
|
|
print "Usage: pushinitrd [-?|-h|--help] [-v|--verbose] [-w <waittime>] <noderange>\n\n";
|
|
if (!$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, 'w|waittime=s' => \$WAITTIME, 'a|noautoinst' => \$NOAUTOINST)) { $usage->(1); }
|
|
|
|
if ($HELP) { $usage->(0); }
|
|
if (scalar(@ARGV) != 1) { $usage->(1); }
|
|
if (!defined($WAITTIME)) { $WAITTIME = 75; } # seconds to wait after configuring the nic (to let the switch handle the state change)
|
|
my $noderange = $ARGV[0];
|
|
|
|
my %bootparms = getBootParms($noderange);
|
|
|
|
copyFilesToNodes($noderange, \%bootparms);
|
|
|
|
updateGrubOnNodes($noderange, \%bootparms);
|
|
|
|
if ($bootparms{osimageprovmethod} eq 'install' && !$NOAUTOINST) { modifyAutoinstFiles($noderange, \%bootparms); }
|
|
|
|
if ($bootparms{osimageprovmethod} eq 'sysclone') { copySyscloneFiles(); }
|
|
|
|
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 nodetype.provmethod");
|
|
|
|
# the attributes can be displayed in a different order than requested, so need to grep for them
|
|
foreach my $attr (qw(bootparams.kernel bootparams.initrd bootparams.kcmdline nodetype.provmethod)) {
|
|
my ($a) = $attr =~ m/\.(.*)$/;
|
|
my @gresults = grep(/^\S+:\s+$attr:/, @output);
|
|
if (!scalar(@gresults)) { die "Error: attribute $attr not defined for the noderange. Did you run 'nodeset <noderange> osimage=<osimage>' ?\n"; }
|
|
# for now just pick the 1st one. They should all be the same, except for the node name in kcmdline
|
|
chomp($gresults[0]);
|
|
$gresults[0] =~ s/^\S+:\s+$attr:\s*//;
|
|
$bootparms{$a} = $gresults[0];
|
|
}
|
|
$bootparms{kcmdline} =~ s|/install/autoinst/\S+|/install/autoinst/<nodename>|;
|
|
|
|
# from the nodes provmethod, get the osimage provmethod, so we know the type of install
|
|
@output = runcmd("lsdef -t osimage $bootparms{provmethod} -ci provmethod");
|
|
chomp($output[0]);
|
|
my ($junk, $provmethod) = split(/=/, $output[0]);
|
|
$bootparms{osimageprovmethod} = $provmethod;
|
|
|
|
# get the mgmt node cluster-facing ip addr
|
|
@output = runcmd('lsdef -t site -ci master');
|
|
chomp($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 -w $WAITTIME -p " . $bootparms->{osimageprovmethod} . ' ' . remoteFilename($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);
|
|
}
|
|
|
|
|
|
# Hack the autoinst files to wait in a key spot to make them work even tho it takes
|
|
# the NICs almost a min before they can transmit after a state change.
|
|
#todo: this has only been tested with SLES nodes
|
|
sub modifyAutoinstFiles {
|
|
my $nr = shift @_;
|
|
my $bootparms = shift @_;
|
|
|
|
# expand the noderange into a list of nodes
|
|
my @nodes = runcmd("nodels $nr");
|
|
chomp(@nodes);
|
|
|
|
# Edit each file to have chroot.sles insert a wait at the end of /etc/init.d/network
|
|
# this finds the end of boot.sh script (which is chroot.sles)
|
|
my $search = '\n\]\]>\s*</source>\s*</script>\s*</chroot-scripts>';
|
|
|
|
# hack the /etc/init.d/network script to put a wait in it
|
|
my $file = '/mnt/etc/init.d/network'; # at this point in the installation, the permanent file system is just mounted
|
|
#my $waitstring = 'echo Sleeping for 55s;sleep 55';
|
|
# this is the string to insert in the nodes /etc/init.d/network script. It is a while loop pinging the mn, but some of the chars need to be escaped for sed
|
|
my $waitstring = 'echo -n Waiting to reach xCAT mgmt node ' . $bootparms->{mnip} . '.;xcatretries=60;while \[ \$\(\(xcati+=1\)\) -le \$xcatretries \] \&\& ! ping -c2 -w3 ' . $bootparms->{mnip} .' \>\/dev\/null 2\>\&1; do echo -n .; done; if \[ \$xcati -le \$xcatretries \]; then echo success; else echo failed; fi; sleep 3';
|
|
# this crazy sed string is from google. It gathers up the whole file into the hold buffer, and then the substitution is done on the whole file
|
|
my $sedstring = q|sed -n '1h;1!H;${;g;s/\(\t\treload_firewall\n\)\n/\1\t\t| . $waitstring . q(\n\n/g;p;}') . " $file > $file.new";
|
|
# finally create the perl replace string that will be used to modify the autoinst file
|
|
my $replace = "$sedstring\nchmod 755 $file.new; mv -f $file.new $file";
|
|
|
|
# Now instead we add a script that gets invoked by the OS after the nic is brought up
|
|
# these are specific to SLES
|
|
#my $netdir = '/etc/sysconfig/network';
|
|
#my $filename = '/etc/sysconfig/network/if-up.d/xcat-sl-wait';
|
|
#my $mnip = $bootparms->{mnip};
|
|
#todo: to support rhel, use these values instead
|
|
#my $netdir='/etc/sysconfig/network-scripts';
|
|
#my $filename='/sbin/ifup-local';
|
|
|
|
# this does not work, because midway thru the autoyast process, the if-up.d scripts do not seem to get invoked
|
|
# so autoyast fails to get he media
|
|
#my $replace = qq(
|
|
#FILENAME=$filename
|
|
#NETDIR=$netdir
|
|
#MNIP=$mnip
|
|
#);
|
|
# $replace .= q(
|
|
#cat >$FILENAME << EOF1
|
|
#MNIP=$MNIP
|
|
#NETDIR=$NETDIR
|
|
#EOF1
|
|
#
|
|
# this part of the file we do NOT want to expand the variables in the content
|
|
#cat >>$FILENAME << 'EOF2'
|
|
#NIC="$1"
|
|
# look in this ifcfg script to get the nics ip to see if this is the one we should be waiting on
|
|
#NICIP=`awk -F= '/^IPADDR/ {print $2}' $NETDIR/ifcfg-$NIC | tr -d \' `
|
|
#if [ "${NICIP%.*.*}" != "${MNIP%.*.*}" ]; then exit; fi # hack: compare the 1st 2 octets
|
|
#echo -n Waiting to reach xCAT mgmt node $MNIP.
|
|
#xcatretries=60
|
|
#while [ $((xcati+=1)) -le $xcatretries ] && ! ping -c2 -w3 $MNIP >/dev/null 2>&1; do echo -n .; done
|
|
#if [ $xcati -le $xcatretries ]; then echo " success"; else echo " failed"; fi
|
|
#sleep 3
|
|
#EOF2
|
|
#
|
|
#chmod +x $FILENAME
|
|
#);
|
|
|
|
# now actually update the file
|
|
print "Updating /install/autoinst files.\n";
|
|
foreach my $n (@nodes) {
|
|
my $f = "/install/autoinst/$n";
|
|
my $matches = sed($f, $search, $replace, mode=>'insertbefore');
|
|
if (!$matches) { die "Error: could not find the right place in $f to insert the sed of the network wait.\n"; }
|
|
}
|
|
}
|
|
|
|
|
|
# Copy softlayer specific systemimager post-install scripts to the systemimager location.
|
|
# These cause si to use static ip and insert a wait into the bring up of the network.
|
|
sub copySyscloneFiles {
|
|
my $cmd = "cp -f /opt/xcat/share/xcat/sysclone/post-install/16all.updatenetwork /install/sysclone/scripts/post-install";
|
|
print "Copying SoftLayer-specific post scripts to the SystemImager post-install directory.\n";
|
|
runcmd($cmd);
|
|
}
|
|
|
|
|
|
# this is like multi-line sed replace function
|
|
# Args: filename, search-string, replace-string
|
|
sub sed {
|
|
my ($file, $search, $replace, %options) = @_;
|
|
#my $opts = 's';
|
|
#if ($options{global}) { $opts .= 'g'; }
|
|
|
|
# open the file for reading
|
|
verbose("reading $file");
|
|
open(FILE, $file) || die "Error: can not open file $file for reading: $!\n";
|
|
my $lines;
|
|
while (<FILE>) { $lines .= $_; }
|
|
#verbose('file length is '.length($lines));
|
|
close FILE;
|
|
|
|
# we also need to look for this string 1st
|
|
my $replacecopy = $replace; # a search string can't have special chars in it
|
|
$replacecopy =~ s/(\W)/\\$1/g; # so escape all of the meta characters
|
|
#print "replacecopy=$replacecopy\n";
|
|
# check to see if the replace string is already in the file
|
|
if ($lines =~ m/$replacecopy/s) {
|
|
print "$file did not need updating.\n";
|
|
return 1;
|
|
}
|
|
|
|
# search/replace and see if there were any matches
|
|
my $matches;
|
|
if ($options{mode} eq 'insertbefore') { $matches = $lines =~ s/($search)/\n$replace\n$1/s; }
|
|
elsif ($options{mode} eq 'insertafter') { $matches = $lines =~ s/($search)/$1\n$replace\n/s; }
|
|
elsif ($options{mode} eq 'replace') { $matches = $lines =~ s/$search/$replace/s; }
|
|
else { die "Internal error: don't suppor sed mode of $options{mode}.\n"; }
|
|
|
|
|
|
# write file if necessary
|
|
if ($matches) {
|
|
verbose("updating $file");
|
|
open(FILE, '>', $file) || die "Error: can not open file $file for writing: $!\n";
|
|
print FILE $lines;
|
|
close FILE;
|
|
}
|
|
return $matches;
|
|
}
|
|
|
|
|
|
# Pring msg only if -v was specified
|
|
sub verbose { if ($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; }
|
|
}
|