611 lines
21 KiB
Perl
611 lines
21 KiB
Perl
package xCAT_plugin::packimage;
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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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use Data::Dumper;
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use xCAT::Table;
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use Getopt::Long;
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use File::Path;
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use File::Copy;
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use Cwd;
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use File::Temp;
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use File::Basename;
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use File::Path;
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#use xCAT::Utils qw(genpassword);
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use xCAT::Utils;
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use xCAT::TableUtils;
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use xCAT::SvrUtils;
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Getopt::Long::Configure("bundling");
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Getopt::Long::Configure("pass_through");
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my $verbose = 0;
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#$verbose = 1;
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sub handled_commands {
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return {
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packimage => "packimage",
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}
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}
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sub process_request {
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my $request = shift;
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my $callback = shift;
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my $doreq = shift;
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my $installroot = xCAT::TableUtils->getInstallDir();
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@ARGV = @{$request->{arg}};
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my $argc = scalar @ARGV;
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if ($argc == 0) {
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$callback->({info=>["packimage -h \npackimage -v \npackimage [-p profile] [-a architecture] [-o OS] [-m method]\npackimage imagename"]});
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return;
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}
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my $osver;
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my $arch;
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my $profile;
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my $method='cpio';
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my $exlistloc;
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my $syncfile;
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my $rootimg_dir;
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my $destdir;
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my $imagename;
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GetOptions(
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"profile|p=s" => \$profile,
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"arch|a=s" => \$arch,
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"osver|o=s" => \$osver,
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"method|m=s" => \$method,
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"help|h" => \$help,
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"version|v" => \$version
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);
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if ($version) {
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my $version = xCAT::Utils->Version();
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$callback->({info=>[$version]});
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return;
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}
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if ($help) {
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$callback->({info=>["packimage -h \npackimage -v \npackimage [-p profile] [-a architecture] [-o OS] [-m method]\npackimage imagename"]});
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return;
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}
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if (@ARGV > 0) {
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$imagename=$ARGV[0];
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if ($arch or $osver or $profile) {
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$callback->({error=>["-o, -p and -a options are not allowed when a image name is specified."],errorcode=>[1]});
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return;
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}
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# load the module in memory
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eval {require("$::XCATROOT/lib/perl/xCAT/Table.pm")};
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if ($@) {
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$callback->({error=>[$@],errorcode=>[1]});
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return;
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}
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# get the info from the osimage and linux
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my $osimagetab=xCAT::Table->new('osimage', -create=>1);
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unless ($osimagetab) {
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$callback->({error=>["The osimage table cannot be opened."],errorcode=>[1]});
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return;
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}
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my $linuximagetab=xCAT::Table->new('linuximage', -create=>1);
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unless ($linuximagetab) {
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$callback->({error=>["The linuximage table cannot be opened."],errorcode=>[1]});
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return;
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}
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(my $ref) = $osimagetab->getAttribs({imagename => $imagename}, 'osvers', 'osarch', 'profile', 'provmethod', 'synclists');
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unless ($ref) {
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$callback->({error=>["Cannot find image \'$imagename\' from the osimage table."],errorcode=>[1]});
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return;
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}
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(my $ref1) = $linuximagetab->getAttribs({imagename => $imagename}, 'exlist', 'rootimgdir');
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unless ($ref1) {
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$callback->({error=>["Cannot find $imagename from the linuximage table."],errorcode=>[1]});
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return;
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}
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$osver=$ref->{'osvers'};
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$arch=$ref->{'osarch'};
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$profile=$ref->{'profile'};
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$syncfile=$ref->{'synclists'};
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my $provmethod=$ref->{'provmethod'};
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unless ($osver and $arch and $profile and $provmethod) {
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$callback->({error=>["osimage.osvers, osimage.osarch, osimage.profile and osimage.provmethod must be specified for the image $imagename in the database."],errorcode=>[1]});
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return;
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}
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if ($provmethod ne 'netboot') {
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$callback->({error=>["\'$imagename\' cannot be used to build diskless image. Make sure osimage.provmethod is 'netboot'."],errorcode=>[1]});
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return;
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}
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$exlistloc =$ref1->{'exlist'};
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$destdir=$ref1->{'rootimgdir'};
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} else {
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$provmethod="netboot";
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unless ($osver) {
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$callback->({error=>["Please specify a os version with the -o flag"],errorcode=>[1]});
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return;
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}
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unless ($arch) {
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$arch = `uname -m`;
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chomp($arch);
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$arch = "x86" if ($arch =~ /i.86$/);
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}
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unless ($profile) {
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$callback->({error=>["Please specify a profile name with -p flag"],errorcode=>[1]});
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return;
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}
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}
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unless ($destdir) {
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$destdir="$installroot/netboot/$osver/$arch/$profile";
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}
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$rootimg_dir="$destdir/rootimg";
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my $distname = $osver;
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until (-r "$::XCATROOT/share/xcat/netboot/$distname/" or not $distname) {
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chop($distname);
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}
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unless ($distname) {
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$callback->({error=>["Unable to find $::XCATROOT/share/xcat/netboot directory for $osver"],errorcode=>[1]});
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return;
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}
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unless ($installroot) {
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$callback->({error=>["No installdir defined in site table"],errorcode=>[1]});
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return;
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}
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my $oldpath=cwd();
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unless ($imagename) {
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$exlistloc=xCAT::SvrUtils->get_exlist_file_name("$installroot/custom/netboot/$distname", $profile, $osver, $arch);
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unless ($exlistloc) { $exlistloc=xCAT::SvrUtils->get_exlist_file_name("$::XCATROOT/share/xcat/netboot/$distname", $profile, $osver, $arch); }
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#save the settings into DB, it will not update if the image already exist
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my @ret = xCAT::SvrUtils->update_tables_with_diskless_image($osver, $arch, $profile, "netboot");
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unless ($ret[0] eq 0) {
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$callback->({error=>["Error when updating the osimage tables: " . $ret[1]], errorcode=>[1]});
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return;
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}
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}
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#before generating rootimg.gz, copy $installroot/postscripts into the image at /xcatpost
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if( -e "$rootimg_dir/xcatpost" ) {
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system("rm -rf $rootimg_dir/xcatpost");
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}
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system("mkdir -p $rootimg_dir/xcatpost");
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system("cp -r $installroot/postscripts/* $rootimg_dir/xcatpost/");
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#put the image name and timestamp into diskless image when it is packed.
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`echo IMAGENAME="'$imagename'" > $rootimg_dir/opt/xcat/xcatinfo`;
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my $timestamp = `date`;
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chomp $timestamp;
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`echo TIMESTAMP="'$timestamp'" >> $rootimg_dir/opt/xcat/xcatinfo`;
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# before generating rootimg.gz or rootimg.sfs, need to switch the rootimg to stateless mode if necessary
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my $rootimg_status = 0; # 0 means stateless mode, while 1 means statelite mode
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$rootimg_status = 1 if (-f "$rootimg_dir/.statelite/litefile.save");
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my $ref_liteList; # get the litefile entries
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my @ret = xCAT::Utils->runcmd("ilitefile $osver-$arch-statelite-$profile" , 0, 1);
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$ref_liteList = $ret[0];
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my %liteHash; # create hash table for the entries in @listList
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if (parseLiteFiles($ref_liteList, \%liteHash)) {
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$callback->({error=>["Failed for parsing litefile table!"], errorcode=>[1]});
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return;
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}
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$verbose && $callback->({data=>["rootimg_status = $rootimg_status at line " . __LINE__ ]});
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if($rootimg_status) {
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xCAT::Utils->runcmd("mkdir $rootimg_dir/.statebackup", 0, 1);
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# read through the litefile table to decide which file/directory should be restore
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my $defaultloc = "$rootimg_dir/.default";
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foreach my $entry (keys %liteHash) {
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my @tmp = split /\s+/, $entry;
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my $filename = $tmp[1];
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my $fileopt = $tmp[0];
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if ($fileopt =~ m/link/) {
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# backup them into .statebackup dirctory
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# restore the files with "link" options
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if ($filename =~ m/\/$/) {
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chop $filename;
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}
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# create the parent directory if $filename's directory is not there,
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my $parent = dirname $filename;
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unless ( -d "$rootimg_dir/.statebackup$parent" ) {
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unlink "$rootimg_dir/.statebackup$parent";
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$verbose && $callback->({data=>["mkdir -p $rootimg_dir/.statebackup$parent"]});
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xCAT::Utils->runcmd("mkdir -p $rootimg_dir/.statebackup$parent", 0, 1);
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}
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$verbose && $callback->({data=>["backing up the file $filename.. at line " . __LINE__ ]});
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$verbose && print "++ $defaultloc$filename ++ $rootimg_dir$filename ++ at " . __LINE__ . "\n";
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xCAT::Utils->runcmd("mv $rootimg_dir$filename $rootimg_dir/.statebackup$filename", 0, 1);
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xCAT::Utils->runcmd("cp -r -a $defaultloc$filename $rootimg_dir$filename", 0, 1);
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}
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}
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}
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# TODO: following the old genimage code, to update the stateles-only files/directories
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# # another file should be /opt/xcat/xcatdsklspost, but it seems not necessary
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xCAT::Utils->runcmd("mv $rootimg_dir/etc/init.d/statelite $rootimg_dir/.statebackup/statelite ", 0, 1) if ( -e "$rootimg_dir/etc/init.d/statelite");
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if ( -e "$rootimg_dir/usr/share/dracut" ) {
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# currently only used for redhat families, not available for SuSE families
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if ( -e "$rootimg_dir/etc/rc.sysinit.backup" ) {
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xCAT::Utils->runcmd("mv $rootimg_dir/etc/rc.sysinit.backup $rootimg_dir/etc/rc.sysinit", 0, 1);
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}
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}
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my $xcat_packimg_tmpfile = "/tmp/xcat_packimg.$$";
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my $excludestr = "find . -xdev ";
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my $includestr;
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if ($exlistloc) {
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my @excludeslist = split ',', $exlistloc;
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foreach my $exlistlocname ( @excludeslist ) {
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my $exlist;
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my $excludetext;
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open($exlist,"<",$exlistlocname);
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system("echo -n > $xcat_packimg_tmpfile");
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while (<$exlist>) {
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$excludetext .= $_;
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}
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close($exlist);
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#handle the #INLCUDE# tag recursively
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my $idir = dirname($exlistlocname);
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my $doneincludes=0;
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while (not $doneincludes) {
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$doneincludes=1;
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if ($excludetext =~ /#INCLUDE:[^#^\n]+#/) {
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$doneincludes=0;
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$excludetext =~ s/#INCLUDE:([^#^\n]+)#/include_file($1,$idir)/eg;
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}
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}
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my @tmp=split("\n", $excludetext);
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foreach (@tmp) {
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chomp $_;
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s/\s*#.*//; #-- remove comments
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next if /^\s*$/; #-- skip empty lines
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if (/^\+/) {
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s/^\+//; #remove '+'
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$includestr .= "-path '". $_ ."' -o ";
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} else {
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s/^\-//; #remove '-' if any
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$excludestr .= "'!' -path '".$_."' -a ";
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}
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}
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}
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}
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# the files specified for statelite should be excluded
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my @excludeStatelite = ("./etc/init.d/statelite", "./etc/rc.sysinit.backup", "./.statelite*", "./.default*", "./.statebackup*");
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foreach my $entry (@excludeStatelite) {
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$excludestr .= "'!' -path '" . $entry . "' -a ";
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}
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$excludestr =~ s/-a $//;
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if ($includestr) {
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$includestr =~ s/-o $//;
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$includestr = "find . -xdev " . $includestr;
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}
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print "\nexcludestr=$excludestr\n\n includestr=$includestr\n\n"; # debug
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# add the xCAT post scripts to the image
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unless ( -d "$rootimg_dir") {
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$callback->({error=>["$rootimg_dir does not exist, run genimage -o $osver -p $profile on a server with matching architecture"], errorcode=>[1]});
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return;
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}
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# some rpms like atftp mount the rootimg/proc to /proc, we need to make sure rootimg/proc is free of junk
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# before packaging the image
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system("umount $rootimg_dir/proc");
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copybootscript($installroot, $rootimg_dir, $osver, $arch, $profile, $callback);
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my $passtab = xCAT::Table->new('passwd');
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if ($passtab) {
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my $pass = 'cluster';
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(my $pent) = $passtab->getAttribs({key=>'system',username=>'root'},'password');
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if ($pent and defined ($pent->{password})) {
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$pass = $pent->{password};
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}
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my $oldmask=umask(0077);
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my $shadow;
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open($shadow,"<","$rootimg_dir/etc/shadow");
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my @shadents = <$shadow>;
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close($shadow);
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open($shadow,">","$rootimg_dir/etc/shadow");
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# 1 - MD5, 5 - SHA256, 6 - SHA512
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unless (($pass =~ /^\$1\$/) || ($pass =~ /^\$5\$/) || ($pass =~ /^\$6\$/)) {
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$pass = crypt($pass,'$1$'.xCAT::Utils::genpassword(8));
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}
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print $shadow "root:$pass:13880:0:99999:7:::\n";
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foreach (@shadents) {
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unless (/^root:/) {
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print $shadow "$_";
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}
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}
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close($shadow);
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umask($oldmask);
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}
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# sync fils configured in the synclist to the rootimage
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$syncfile = xCAT::SvrUtils->getsynclistfile(undef, $osver, $arch, $profile, "netboot", $imagename);
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if (defined ($syncfile) && -f $syncfile
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&& -d $rootimg_dir) {
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print "sync files from $syncfile to the $rootimg_dir\n";
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system("$::XCATROOT/bin/xdcp -i $rootimg_dir -F $syncfile");
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}
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my $verb = "Packing";
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my $temppath;
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my $oldmask;
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unless ( -d $rootimg_dir) {
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$callback->({error=>["$rootimg_dir does not exist, run genimage -o $osver -p $profile on a server with matching architecture"]});
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return;
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}
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$callback->({data=>["$verb contents of $rootimg_dir"]});
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unlink("$destdir/rootimg.gz");
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unlink("$destdir/rootimg.sfs");
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if ($method =~ /cpio/) {
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if ( ! $exlistloc ) {
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$excludestr = "find . -xdev |cpio -H newc -o | gzip -c - > ../rootimg.gz";
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}else {
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chdir("$rootimg_dir");
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system("$excludestr >> $xcat_packimg_tmpfile");
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if ($includestr) {
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system("$includestr >> $xcat_packimg_tmpfile");
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}
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#$excludestr =~ s!-a \z!|cpio -H newc -o | gzip -c - > ../rootimg.gz!;
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$excludestr = "cat $xcat_packimg_tmpfile|cpio -H newc -o | gzip -c - > ../rootimg.gz";
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}
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$oldmask = umask 0077;
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} elsif ($method =~ /squashfs/) {
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$temppath = mkdtemp("/tmp/packimage.$$.XXXXXXXX");
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chmod 0755,$temppath;
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chdir("$rootimg_dir");
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system("$excludestr >> $xcat_packimg_tmpfile");
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if ($includestr) {
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system("$includestr >> $xcat_packimg_tmpfile");
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}
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$excludestr = "cat $xcat_packimg_tmpfile|cpio -dump $temppath";
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} else {
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$callback->({error=>["Invalid method '$method' requested"],errorcode=>[1]});
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}
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chdir("$rootimg_dir");
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`$excludestr`;
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if ($method =~ /cpio/) {
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chmod 0644,"$destdir/rootimg.gz";
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umask $oldmask;
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} elsif ($method =~ /squashfs/) {
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my $flags;
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if ($arch =~ /x86/) {
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$flags="-le";
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} elsif ($arch =~ /ppc/) {
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$flags="-be";
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}
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if( $osver =~ /rhels/ && $osver !~ /rhels5/) {
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$flags="";
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}
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if (! -x "/sbin/mksquashfs" && ! -x "/usr/bin/mksquashfs" ) {
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$callback->({error=>["mksquashfs not found, squashfs-tools rpm should be installed on the management node"],errorcode=>[1]});
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return;
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}
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my $rc = system("mksquashfs $temppath ../rootimg.sfs $flags");
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if ($rc) {
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$callback->({error=>["mksquashfs could not be run successfully"],errorcode=>[1]});
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return;
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}
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$rc = system("rm -rf $temppath");
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if ($rc) {
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$callback->({error=>["Failed to clean up temp space"],errorcode=>[1]});
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return;
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}
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chmod(0644,"../rootimg.sfs");
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}
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system("rm -f $xcat_packimg_tmpfile");
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# move the files in /.statebackup back to rootimg_dir
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if ($rootimg_status) { # statelite mode
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foreach my $entry (keys %liteHash) {
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my @tmp = split /\s+/, $entry;
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my $filename = $tmp[1];
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my $fileopt = $tmp[0];
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if ($fileopt =~ m/link/) {
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chop $filename if ($filename =~ m/\/$/);
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xCAT::Utils->runcmd("rm -rf $rootimg_dir$filename", 0, 1);
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xCAT::Utils->runcmd("mv $rootimg_dir/.statebackup$filename $rootimg_dir$filename", 0, 1);
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}
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}
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xCAT::Utils->runcmd("mv $rootimg_dir/.statebackup/statelite $rootimg_dir/etc/init.d/statelite", 0, 1);
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xCAT::Utils->runcmd("rm -rf $rootimg_dir/.statebackup", 0, 1);
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}
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chdir($oldpath);
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}
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###########################################################
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#
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# copybootscript - copy the xCAT diskless init scripts to the image
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#
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#############################################################
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sub copybootscript {
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my $installroot = shift;
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my $rootimg_dir = shift;
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my $osver = shift;
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|
my $arch = shift;
|
|
my $profile = shift;
|
|
my $callback = shift;
|
|
my @timezone = xCAT::TableUtils->get_site_attribute("timezone");
|
|
|
|
if ( -f "$installroot/postscripts/xcatdsklspost") {
|
|
|
|
# copy the xCAT diskless post script to the image
|
|
mkpath("$rootimg_dir/opt/xcat");
|
|
|
|
copy ("$installroot/postscripts/xcatdsklspost", "$rootimg_dir/opt/xcat/xcatdsklspost");
|
|
if($timezone[0]) {
|
|
copy ("$rootimg_dir/usr/share/zoneinfo/$timezone[0]", "$rootimg_dir/etc/localtime");
|
|
}
|
|
|
|
|
|
chmod(0755,"$rootimg_dir/opt/xcat/xcatdsklspost");
|
|
|
|
} else {
|
|
|
|
my $rsp;
|
|
push @{$rsp->{data}}, "Could not find the script $installroot/postscripts/xcatdsklspost.\n";
|
|
xCAT::MsgUtils->message("E", $rsp, $callback);
|
|
return 1;
|
|
}
|
|
|
|
|
|
#if ( -f "$installroot/postscripts/xcatpostinit") {
|
|
# copy the linux diskless init script to the image
|
|
# - & set the permissions
|
|
#copy ("$installroot/postscripts/xcatpostinit","$rootimg_dir/etc/init.d/xcatpostinit");
|
|
|
|
#chmod(0755,"$rootimg_dir/etc/init.d/xcatpostinit");
|
|
|
|
# run chkconfig
|
|
#my $chkcmd = "chroot $rootimg_dir chkconfig --add xcatpostinit";
|
|
#symlink "/etc/init.d/xcatpostinit","$rootimg_dir/etc/rc3.d/S84xcatpostinit";
|
|
#symlink "/etc/init.d/xcatpostinit","$rootimg_dir/etc/rc4.d/S84xcatpostinit";
|
|
#symlink "/etc/init.d/xcatpostinit","$rootimg_dir/etc/rc5.d/S84xcatpostinit";
|
|
#my $rc = system($chkcmd);
|
|
#if ($rc) {
|
|
#my $rsp;
|
|
# push @{$rsp->{data}}, "Could not run the chkconfig command.\n";
|
|
# xCAT::MsgUtils->message("E", $rsp, $callback);
|
|
# return 1;
|
|
# }
|
|
#} else {
|
|
#my $rsp;
|
|
# push @{$rsp->{data}}, "Could not find the script $installroot/postscripts/xcatpostinit.\n";
|
|
# xCAT::MsgUtils->message("E", $rsp, $callback);
|
|
# return 1;
|
|
#}
|
|
return 0;
|
|
}
|
|
|
|
sub include_file
|
|
{
|
|
my $file = shift;
|
|
my $idir = shift;
|
|
my @text = ();
|
|
unless ($file =~ /^\//) {
|
|
$file = $idir."/".$file;
|
|
}
|
|
|
|
open(INCLUDE,$file) || \
|
|
return "#INCLUDEBAD:cannot open $file#";
|
|
|
|
while(<INCLUDE>) {
|
|
chomp($_);
|
|
s/\s+$//; #remove trailing spaces
|
|
next if /^\s*$/; #-- skip empty lines
|
|
push(@text, $_);
|
|
}
|
|
|
|
close(INCLUDE);
|
|
|
|
return join("\n", @text);
|
|
}
|
|
|
|
=head3 parseLiteFiles
|
|
In the liteentry table, one directory and its sub-items (including sub-directory and entries) can co-exist;
|
|
In order to handle such a scenario, one hash is generated to show the hirarachy relationship
|
|
|
|
For example, one array with entry names is used as the input:
|
|
my @entries = (
|
|
"imagename bind,persistent /var/",
|
|
"imagename bind /var/tmp/",
|
|
"imagename tmpfs,rw /root/",
|
|
"imagename tmpfs,rw /root/.bashrc",
|
|
"imagename tmpfs,rw /root/test/",
|
|
"imagename bind /etc/resolv.conf",
|
|
"imagename bind /var/run/"
|
|
);
|
|
Then, one hash will generated as:
|
|
%hashentries = {
|
|
'bind,persistent /var/' => [
|
|
'bind /var/tmp/',
|
|
'bind /var/run/'
|
|
],
|
|
'bind /etc/resolv.conf' => undef,
|
|
'tmpfs,rw /root/' => [
|
|
'tmpfs,rw /root/.bashrc',
|
|
'tmpfs,rw /root/test/'
|
|
]
|
|
};
|
|
|
|
Arguments:
|
|
one array with entrynames,
|
|
one hash to hold the entries parsed
|
|
|
|
Returns:
|
|
0 if sucucess
|
|
1 if fail
|
|
|
|
=cut
|
|
|
|
|
|
|
|
sub parseLiteFiles {
|
|
my ($flref, $dhref) = @_;
|
|
my @entries = @{$flref};
|
|
|
|
|
|
foreach (@entries) {
|
|
my $entry = $_;
|
|
my @str = split /\s+/, $entry;
|
|
shift @str;
|
|
$entry = join "\t", @str;
|
|
my $file = $str[1];
|
|
chop $file if ($file =~ m{/$});
|
|
unless (exists $dhref->{"$entry"}) {
|
|
my $parent = dirname($file);
|
|
# to see whether $parent exists in @entries or not
|
|
unless ($parent =~ m/\/$/) {
|
|
$parent .= "/";
|
|
}
|
|
my @res = grep {$_ =~ m/\Q$parent\E$/} @entries;
|
|
my $found = scalar @res;
|
|
|
|
if($found eq 1) { # $parent is found in @entries
|
|
# handle $res[0];
|
|
my @tmpresentry=split /\s+/, $res[0];
|
|
shift @tmpresentry;
|
|
$res[0] = join "\t", @tmpresentry;
|
|
chop $parent;
|
|
my @keys = keys %{$dhref};
|
|
my $kfound = grep {$_ =~ m/\Q$res[0]\E$/} @keys;
|
|
if($kfound eq 0) {
|
|
$dhref->{$res[0]} = [];
|
|
}
|
|
push @{$dhref->{"$res[0]"}}, $entry;
|
|
}else {
|
|
$dhref->{"$entry"} = ();
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
1;
|