aeae30cc5b
git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@5296 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
399 lines
12 KiB
Perl
399 lines
12 KiB
Perl
package xCAT_plugin::statelite;
|
|
BEGIN
|
|
{
|
|
$::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
|
|
}
|
|
use lib "$::XCATROOT/lib/perl";
|
|
use xCAT::Table;
|
|
use Getopt::Long;
|
|
use File::Basename;
|
|
use File::Path;
|
|
use File::Copy;
|
|
use File::Find;
|
|
use Cwd;
|
|
use File::Temp;
|
|
use xCAT::Utils qw(genpassword);
|
|
use xCAT::SvrUtils;
|
|
use Data::Dumper;
|
|
Getopt::Long::Configure("bundling");
|
|
Getopt::Long::Configure("pass_through");
|
|
|
|
my $cmdname = "liteimg";
|
|
my $statedir = ".statelite";
|
|
my $verbose = "0";
|
|
sub handled_commands {
|
|
return {
|
|
$cmdname => "statelite"
|
|
}
|
|
}
|
|
|
|
# function to handle request. Basically, get the information
|
|
# about the image and then do the action on it. Is that vague enough?
|
|
sub process_request {
|
|
my $request = shift;
|
|
my $callback = shift;
|
|
my $doreq = shift;
|
|
|
|
my $sitetab = xCAT::Table->new('site');
|
|
my $ent = $sitetab->getAttribs({key=>'installdir'},['value']);
|
|
my $installroot = "/install";
|
|
|
|
# get /install directory
|
|
if ($ent and $ent->{value}) {
|
|
$installroot = $ent->{value};
|
|
}
|
|
# if not defined, error out... or should we set it as default?
|
|
unless ($installroot) {
|
|
$callback->({error=>["No installdir defined in site table"],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
@ARGV = @{$request->{arg}};
|
|
my $argc = scalar @ARGV;
|
|
if ($argc == 0) {
|
|
$callback->({info=>["$cmdname -h # this help message\n$cmdname -v # version\n$cmdname -V # verbose\n$cmdname [-p profile] [-a architecture] [-o OS]\n$cmdname imagename"]});
|
|
return;
|
|
}
|
|
|
|
my $osver;
|
|
my $arch;
|
|
my $profile;
|
|
my $rootimg_dir;
|
|
my $destdir;
|
|
my $imagename;
|
|
|
|
GetOptions(
|
|
"profile|p=s" => \$profile,
|
|
"arch|a=s" => \$arch,
|
|
"osver|o=s" => \$osver,
|
|
"help|h" => \$help,
|
|
"version|v" => \$version,
|
|
"verbose|V" => \$verbose
|
|
);
|
|
|
|
if ($version) {
|
|
my $version = xCAT::Utils->Version();
|
|
$callback->({info=>[$version]});
|
|
return;
|
|
}
|
|
if ($help) {
|
|
# $callback->({info=>["packimage -h \npackimage -v \npackimage [-p profile] [-a architecture] [-o OS] \npackimage imagename"]});
|
|
$callback->({info=>["imglite... prep an image to be lite"]});
|
|
return;
|
|
}
|
|
|
|
# if they only gave us the image name:
|
|
if (@ARGV > 0) {
|
|
$imagename=$ARGV[0];
|
|
if ($arch or $osver or $profile) {
|
|
$callback->({error=>["-o, -p and -a options are not allowed when a image name is specified."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
#load the module in memory
|
|
eval {require("$::XCATROOT/lib/perl/xCAT/Table.pm")};
|
|
if ($@) {
|
|
$callback->({error=>[$@],errorcode=>[1]});
|
|
return;
|
|
}
|
|
#get the info from the osimage and linux
|
|
|
|
my $osimagetab=xCAT::Table->new('osimage', -create=>1);
|
|
if (!$osimagetab) {
|
|
# os image doesn't exist in table.
|
|
$callback->({error=>["The osimage table cannot be opened."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
# open the linux image table to get more attributes... for later.
|
|
my $linuximagetab=xCAT::Table->new('linuximage', -create=>1);
|
|
if (!$linuximagetab) {
|
|
$callback->({error=>["The linuximage table cannot be opened."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
# get the os, arch, and profile from the image name table.
|
|
(my $ref) = $osimagetab->getAttribs({imagename => $imagename}, 'osvers', 'osarch', 'profile');
|
|
if (!$ref) {
|
|
$callback->({error=>["Cannot find image \'$imagename\' from the osimage table."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
$osver=$ref->{'osvers'};
|
|
$arch=$ref->{'osarch'};
|
|
$profile=$ref->{'profile'};
|
|
} # end of case where they give us osimage.
|
|
|
|
unless ($osver and $arch and $profile ) {
|
|
$callback->({error=>["osimage.osvers, osimage.osarch, and osimage.profile and must be specified for the image $imagename in the database, or you must specify -o os -p profile -a arch."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
$destdir="$installroot/netboot/$osver/$arch/$profile";
|
|
$rootimg_dir="$destdir/rootimg";
|
|
my $oldpath=cwd();
|
|
|
|
# now we have all the info we need:
|
|
# - rootimg_dir
|
|
# - osver
|
|
# - arch
|
|
# - profile
|
|
$callback->({info=>["going to modify $rootimg_dir"]});
|
|
|
|
#get the root password for the node
|
|
my $passtab = xCAT::Table->new('passwd');
|
|
if ($passtab) {
|
|
(my $pent) = $passtab->getAttribs({key=>'system',username=>'root'},'password');
|
|
if ($pent and defined ($pent->{password})) {
|
|
my $pass = $pent->{password};
|
|
my $shadow;
|
|
open($shadow,"<","$rootimg_dir/etc/shadow");
|
|
my @shadents = <$shadow>;
|
|
close($shadow);
|
|
open($shadow,">","$rootimg_dir/etc/shadow");
|
|
unless ($pass =~ /^\$1\$/) {
|
|
$pass = crypt($pass,'$1$'.genpassword(8));
|
|
}
|
|
print $shadow "root:$pass:13880:0:99999:7:::\n";
|
|
foreach (@shadents) {
|
|
unless (/^root:/) {
|
|
print $shadow "$_";
|
|
}
|
|
}
|
|
close($shadow);
|
|
}
|
|
}
|
|
|
|
# sync fils configured in the synclist to the rootimage
|
|
#if (!$imagename) {
|
|
# $syncfile = xCAT::SvrUtils->getsynclistfile(undef, $osver, $arch, $profile, "netboot");
|
|
# if (defined ($syncfile) && -f $syncfile
|
|
# && -d $rootimg_dir) {
|
|
# print "sync files from $syncfile to the $rootimg_dir\n";
|
|
# `$::XCATROOT/bin/xdcp -i $rootimg_dir -F $syncfile`;
|
|
# }
|
|
#}
|
|
|
|
#store the image in the DB
|
|
if (!$imagename) {
|
|
my @ret=xCAT::SvrUtils->update_tables_with_diskless_image($osver, $arch, $profile, 'statelite');
|
|
if ($ret[0] != 0) {
|
|
$callback->({error=>["Error when updating the osimage tables: " . $ret[1]]});
|
|
}
|
|
$imagename="$osver-$arch-statelite-$profile"
|
|
}
|
|
|
|
# now get the files for the node
|
|
my @synclist = xCAT::Utils->runcmd("ilitefile $imagename", 0, 1);
|
|
if(!@synclist){
|
|
$callback->({error=>["There are no files to sync for $imagename. You have to have some files read/write filled out in the synclist table."],errorcode=>[1]});
|
|
return;
|
|
}
|
|
|
|
# this line is TOO OLD: all I care about are the files, not the characteristics at this point:
|
|
# We need to consider the characteristics of the file if the option is "bind,persistent" or "bind"
|
|
my @files;
|
|
my @bindedFiles;
|
|
foreach my $line (@synclist){
|
|
foreach (@{$line}){
|
|
my @entry = split(/\s+/, $_);
|
|
my $f = $entry[2];
|
|
if($entry[1] =~ m/bind/) {
|
|
if($f =~ /^\//) {
|
|
push @bindedFiles, $f;
|
|
}else {
|
|
# make sure each file begins with "/"
|
|
$callback->({error=>["$f in litefile does not begin with absolute path! Need a '/' in the beginning"],errorcode=>[1]});
|
|
return;
|
|
}
|
|
} else {
|
|
if($f =~ /^\//){
|
|
push @files, $f;
|
|
}else{
|
|
# make sure each file begins with "/"
|
|
$callback->({error=>["$f in litefile does not begin with absolute path! Need a '/' in the beginning"],errorcode=>[1]});
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
liteMe($rootimg_dir,\@files, \@bindedFiles, $callback);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
sub liteMe {
|
|
# Arg 1: root image dir: /install/netboot/centos5.3/x86_64/compute/rootimg
|
|
my $rootimg_dir = shift;
|
|
my $files = shift;
|
|
my $bindedFiles = shift;
|
|
use Data::Dumper;
|
|
print Dumper($files);
|
|
print Dumper($bindedFiles);
|
|
# Arg 2: callback ref to make comments...
|
|
my $callback = shift;
|
|
unless(-d $rootimg_dir){
|
|
$callback->({error=>["no rootimage dir"],errorcode=>[1]});
|
|
return;
|
|
}
|
|
# snapshot directory for tmpfs and persistent data.
|
|
$callback->({info=>["creating $rootimg_dir/$statedir"]});
|
|
mkpath("$rootimg_dir/$statedir/tmpfs");
|
|
# now make a place for all the files.
|
|
|
|
# this loop uses "mount --bind" to mount files instead of creating symbolic links for
|
|
# each of the files in the @$bindedFiles sync list;
|
|
# 1. copy original contents if they exist to .default directory
|
|
foreach my $f (@$bindedFiles) {
|
|
print Dumper($f);
|
|
# copy the file to /.defaults
|
|
my $rif = $rootimg_dir . $f;
|
|
my $d = dirname($f);
|
|
|
|
if( !(-e "$rootimg_dir/.default$d") ) {
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir/.default$d"]});
|
|
system("mkdir -p $rootimg_dir/.default$d");
|
|
}
|
|
|
|
# copy the file in place.
|
|
$verbose && $callback->({info=>["cp -a $rif $rootimg_dir/.default$d"]});
|
|
system("cp -a $rif $rootimg_dir/.default$d");
|
|
}
|
|
|
|
# this loop creates symbolic links for each of the files in the sync list.
|
|
# 1. copy original contents if they exist to .default directory
|
|
# 2. remove file
|
|
# 3. create symbolic link to .statelite
|
|
|
|
my $sym = "1"; # sym = 0 means no symlinks, just bindmount
|
|
if($sym){
|
|
foreach my $f (@$files){
|
|
# copy the file to /.defaults
|
|
my $rif = $rootimg_dir . $f;
|
|
my $d = dirname($f);
|
|
if( -f "$rif" or -d "$rif"){
|
|
# if its already a link then leave it alone.
|
|
unless(-l $rif){
|
|
# mk the directory if it doesn't exist:
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir/.default$d"]});
|
|
system("mkdir -p $rootimg_dir/.default$d");
|
|
|
|
# copy the file in place.
|
|
$verbose && $callback->({info=>["cp -a $rif $rootimg_dir/.default$d"]});
|
|
system("cp -a $rif $rootimg_dir/.default$d");
|
|
|
|
# remove the real file
|
|
$verbose && $callback->({info=>["rm -rf $rif"]});
|
|
system("rm -rf $rif");
|
|
|
|
}
|
|
|
|
}else{
|
|
|
|
# in this case the file doesn't exist in the image so we create something to it.
|
|
# here we're modifying the read/only image
|
|
unless(-d "$rootimg_dir$d"){
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir$d"]});
|
|
system("mkdir -p $rootimg_dir$d");
|
|
}
|
|
|
|
unless(-d "$rootimg_dir/.default$d"){
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir/.default$d"]});
|
|
system("mkdir -p $rootimg_dir/.default$d");
|
|
}
|
|
|
|
# now make touch the file:
|
|
if($f =~ /\/$/){
|
|
# if its a directory, make the directory in .default
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir/.default$f"]});
|
|
system("mkdir -p $rootimg_dir/.default$f");
|
|
}else{
|
|
# if its just a file then link it.
|
|
$verbose && $callback->({info=>["touch $rootimg_dir/.default$f"]});
|
|
system("touch $rootimg_dir/.default$f");
|
|
}
|
|
}
|
|
|
|
# now create the spot in tmpfs
|
|
$verbose && $callback->({info=>["mkdir -p $rootimg_dir/$statedir/tmpfs$d"]});
|
|
system("mkdir -p $rootimg_dir/$statedir/tmpfs$d");
|
|
|
|
# now for each file, create a symbollic link to /.statelite/tmpfs/
|
|
# strip the last / if its a directory for linking, but be careful!
|
|
# doing ln -sf ../../tmp <blah>../tmp when tmp is a directory creates 50 levels of links.
|
|
# have to do:
|
|
# ln -sf ../../tmp <blah>../../tmp/ <- note the / on the end!
|
|
if($f =~ /\/$/){
|
|
$f =~ s/\/$//g;
|
|
}
|
|
# now do the links.
|
|
# link the .default file to the .statelite file and the real file to the .statelite file.
|
|
|
|
# ../ for tmpfs
|
|
# ../ for .statelite
|
|
# the rest are for the paths in the file.
|
|
my $l = getRelDir($f);
|
|
$verbose && $callback->({info=>["ln -sf ../../$l/.default$f $rootimg_dir/$statedir/tmpfs$f"]});
|
|
system("ln -sfn ../../$l/.default$f $rootimg_dir/$statedir/tmpfs/$f");
|
|
|
|
$verbose && $callback->({info=>["ln -sf $l/$statedir/tmpfs$f $rootimg_dir$f"]});
|
|
system("ln -sfn $l/$statedir/tmpfs$f $rootimg_dir$f");
|
|
|
|
}
|
|
}else{
|
|
# if we go the bindmount method, create some files
|
|
foreach my $f (@$files){
|
|
my $rif = $rootimg_dir . $f;
|
|
my $d = dirname($rif);
|
|
unless(-e "$rif"){
|
|
# if it doesn't exist, create it on base image:
|
|
unless(-d $d){
|
|
#$callback->({info=>["mkdir -p $d"]});
|
|
system("mkdir -p $d");
|
|
}
|
|
if($rif =~ /\/$/){
|
|
#$callback->({info=>["mkdir -p $rif"]});
|
|
system("mkdir -p $rif");
|
|
}else{
|
|
#$callback->({info=>["touch $rif"]});
|
|
system("touch $rif");
|
|
}
|
|
}
|
|
else {
|
|
#$callback->({info=>["$rif exists"]});
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
# end loop, synclist should now all be in place.
|
|
|
|
# now stick the rc files in:
|
|
# this is actually a pre-rc file because it gets run before the node boots up all the way.
|
|
system("cp -a $::XCATROOT/share/xcat/netboot/add-on/statelite/rc.statelite $rootimg_dir/etc/init.d/statelite");
|
|
|
|
}
|
|
|
|
sub getRelDir {
|
|
my $f = shift;
|
|
$f = dirname($f);
|
|
if($f eq "/"){
|
|
return ".";
|
|
}
|
|
my $l = "";
|
|
|
|
my @arr = split("/", $f);
|
|
foreach (1 .. $#arr){
|
|
$l .= "../";
|
|
}
|
|
|
|
chop($l); # get rid of last /
|
|
return $l
|
|
}
|
|
|
|
1;
|