345 lines
13 KiB
Plaintext
345 lines
13 KiB
Plaintext
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#!/usr/bin/env perl
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use File::Basename;
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use File::Path;
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use File::Copy;
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use File::Find;
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use Getopt::Long;
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Getopt::Long::Configure("bundling");
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Getopt::Long::Configure("pass_through");
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my $prinic; #TODO be flexible on node primary nic
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my $othernics; #TODO be flexible on node primary nic
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my $netdriver;
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my @yumdirs;
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my $arch = `uname -m`;
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chomp($arch);
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my %libhash;
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my @filestoadd;
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my $profile;
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my $osver;
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my $pathtofiles=dirname($0);
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GetOptions(
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#'a=s' => \$architecture,
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'p=s' => \$profile,
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'o=s' => \$osver,
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'n=s' => \$netdriver,
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'i=s' => \$prinic,
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'r=s' => \$othernics
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);
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unless ($osver and $profile and $netdriver and $prinic) {
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print 'Usage: genimage -i <nodebootif> -n <nodenetdrivers> [-r <otherifaces>] -o <OSVER> -p <PROFILE>'."\n";
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print "Examples:\n";
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print " genimage -i eth0 -n tg3 -o centos5.1 -p compute\n";
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print " genimage -i eth0 -r eth1,eth2 -n tg3,bnx2 -o centos5.1 -p compute\n";
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exit 1;
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}
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my @ndrivers;
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foreach (split /,/,$netdriver) {
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unless (/\.ko$/) {
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s/$/.ko/;
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}
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if (/^$/) {
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next;
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}
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push @ndrivers,$_;
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}
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my $installroot = "/install";
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my $srcdir = "$installroot/$osver/$arch";
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@yumdirs=();
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find(\&isyumdir, <$installroot/$osver/$arch/>);
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unless (scalar(@yumdirs)) {
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#unless ( -d $srcdir."/repodata" ) {
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print "Need $installroot/$osver/$arch/ available from a system that has ran copycds on $osver $arch";
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exit 1;
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}
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my $yumconfig;
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open($yumconfig,">","/tmp/genimage.$$.yum.conf");
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my $repnum=0;
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foreach $srcdir (@yumdirs) {
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print $srcdir;
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print $yumconfig "[$osver-$arch-$repnum]\nname=$osver-$arch-$repnum\nbaseurl=file://$srcdir\ngpgpcheck=0\n\n";
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$repnum += 1;
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}
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$repnum-=1;
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close($yumconfig);
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my $yumcmd = "yum -y -c /tmp/genimage.$$.yum.conf --installroot=$installroot/netboot/$osver/$arch/$profile/rootimg/ --disablerepo=* ";
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foreach (0..$repnum) {
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$yumcmd .= "--enablerepo=$osver-$arch-$_ "
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}
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$yumcmd .= "install ";
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mkpath("$installroot/netboot/$osver/$arch/$profile/rootimg/var/lib/yum");
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my $pkglist;
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if (-r "$pathtofiles/$profile.$osver.$arch.pkglist") {
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$pkglist = "$pathtofiles/$profile.$osver.$arch.pkglist";
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} elsif (-r "$pathtofiles/$profile.$arch.pkglist") {
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$pkglist = "$pathtofiles/$profile.$arch.pkglist";
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} elsif (-r "$pathtofiles/$profile.$osver.pkglist") {
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$pkglist = "$pathtofiles/$profile.$osver.pkglist";
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} elsif (-r "$pathtofiles/$profile.pkglist") {
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$pkglist = "$pathtofiles/$profile.pkglist";
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} else {
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print "Unable to find package list for $profile!";
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return 1;
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}
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open($yumconfig,"<","$pkglist");
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while (<$yumconfig>) {
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chomp;
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$yumcmd .= $_ . " ";
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}
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$yumcmd =~ s/ $/\n/;
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my $rc = system($yumcmd);
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if ($rc) {
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print "yum invocation failed\n";
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exit 1;
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}
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mkinitrd();
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postscripts(); #run 'postscripts'
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unlink "/tmp/genimage.$$.yum.conf";
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sub getlibs {
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my $file = shift;
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my $liblist = `chroot $installroot/netboot/$osver/$arch/$profile/rootimg ldd $file`;
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my @libs = split/\n/,$liblist;
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my @return;
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foreach (@libs) {
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unless (/=>/) {
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(my $wjnk, my $lib,my $jnk) = split /\s+/,$_,3;
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$lib =~ s/^\///;
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$libhash{$lib}=1;
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next;
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}
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(my $temp1,my $temp2) = split />/,$_,2;
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(my $whitespace,$temp1,$temp2) = split /\s+/,$temp2,4;
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unless ($temp1 =~ /\//) {
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next;
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}
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$temp1 =~ s/^\///;
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$libhash{$temp1}=1;
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}
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}
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sub mkinitrd {
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mkpath("/tmp/xcatinitrd.$$/bin");
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symlink("bin","/tmp/xcatinitrd.$$/sbin");
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mkpath("/tmp/xcatinitrd.$$/usr/bin");
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mkpath("/tmp/xcatinitrd.$$/usr/sbin");
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mkpath("/tmp/xcatinitrd.$$/usr/lib");
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mkpath("/tmp/xcatinitrd.$$/usr/lib64");
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mkpath("/tmp/xcatinitrd.$$/lib/firmware");
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mkpath("/tmp/xcatinitrd.$$/lib64/firmware");
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mkpath("/tmp/xcatinitrd.$$/proc");
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mkpath("/tmp/xcatinitrd.$$/sys");
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mkpath("/tmp/xcatinitrd.$$/dev/mapper");
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mkpath("/tmp/xcatinitrd.$$/sysroot");
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mkpath("/tmp/xcatinitrd.$$/etc/ld.so.conf.d");
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mkpath("/tmp/xcatinitrd.$$/var/lib/dhclient");
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my $inifile;
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open($inifile,">","/tmp/xcatinitrd.$$/init");
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print $inifile "#!/sbin/busybox.anaconda sh\n";
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print $inifile "busybox.anaconda mount -t proc /proc /proc\n";
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print $inifile "busybox.anaconda --install\n";
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print $inifile "mount -t sysfs /sys /sys\n";
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print $inifile "mount -o mode=0755 -t tmpfs /dev /dev\n";
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print $inifile "mkdir /dev/pts\n";
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print $inifile "mount -t devpts -o gid=5,mode=620 /dev/pts /dev/pts\n";
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print $inifile "mkdir /dev/shm\n";
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print $inifile "mkdir /dev/mapper\n";
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print $inifile "mknod /dev/null c 1 3\n";
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print $inifile "mknod /dev/zero c 1 5\n";
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print $inifile "mknod /dev/systty c 4 0\n";
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print $inifile "mknod /dev/tty c 5 0\n";
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print $inifile "mknod /dev/console c 5 1\n";
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print $inifile "mknod /dev/ptmx c 5 2\n";
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print $inifile "mknod /dev/rtc c 10 135\n";
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print $inifile "mknod /dev/tty0 c 4 0\n";
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print $inifile "mknod /dev/tty1 c 4 1\n";
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print $inifile "mknod /dev/tty2 c 4 2\n";
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print $inifile "mknod /dev/tty3 c 4 3\n";
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print $inifile "mknod /dev/tty4 c 4 4\n";
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print $inifile "mknod /dev/tty5 c 4 5\n";
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print $inifile "mknod /dev/tty6 c 4 6\n";
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print $inifile "mknod /dev/tty7 c 4 7\n";
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print $inifile "mknod /dev/tty8 c 4 8\n";
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print $inifile "mknod /dev/tty9 c 4 9\n";
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print $inifile "mknod /dev/tty10 c 4 10\n";
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print $inifile "mknod /dev/tty11 c 4 11\n";
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print $inifile "mknod /dev/tty12 c 4 12\n";
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print $inifile "mknod /dev/ttyS0 c 4 64\n";
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print $inifile "mknod /dev/ttyS1 c 4 65\n";
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print $inifile "mknod /dev/ttyS2 c 4 66\n";
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print $inifile "mknod /dev/ttyS3 c 4 67\n";
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foreach (@ndrivers) {
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print $inifile "insmod /lib/$_\n";
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}
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print $inifile "netstart\n";
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print $inifile "cd /\n";
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print $inifile "for i in `cat /proc/cmdline`; do\n";
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print $inifile " KEY=`echo \$i |awk -F= '{print \$1}'`\n";
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print $inifile " if [ \"\$KEY\" == 'imgurl' ]; then\n";
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print $inifile " VALUE=`echo \$i |awk -F= '{print \$2}'`\n";
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print $inifile " if [ \"http\" == \"`echo \$VALUE|awk -F: '{print \$1}'`\" ]; then\n";
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print $inifile " wget \$VALUE\n";
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print $inifile " fi\n";
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print $inifile " fi\n";
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print $inifile "done\n";
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print $inifile "if [ -r /rootimg.sfs ]; then\n";
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print $inifile " echo Setting up squashfs with ram overlay\n";
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print $inifile " mknod /dev/loop0 b 7 0\n";
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print $inifile " mkdir -p /ro\n";
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print $inifile " mkdir -p /rw\n";
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print $inifile " mount -t squashfs /rootimg.sfs /ro\n";
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print $inifile " mount -t tmpfs rw /rw\n";
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print $inifile " mount -t aufs -o dirs=/rw:/ro mergedroot /sysroot\n";
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print $inifile "elif [ -r /rootimg.gz ]; then\n";
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print $inifile " mount -t tmpfs rootfs /sysroot\n";
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print $inifile " cd /sysroot\n";
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print $inifile " echo -n \"Extracting root filesystem:\"\n";
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print $inifile " if [ -x /bin/cpio ]; then\n";
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print $inifile " zcat /rootimg.gz |/bin/cpio -idum\n";
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print $inifile " else\n";
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print $inifile " zcat /rootimg.gz |cpio -idum\n";
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print $inifile " fi\n";
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print $inifile " echo Done\n";
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print $inifile "else\n";
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print $inifile " echo -n Failed to download image, panicing in 5...\n";
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print $inifile " for i in 4 3 2 1 0; do\n";
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print $inifile " /bin/sleep 1\n";
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print $inifile " echo -n \$i...\n";
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print $inifile " done\n";
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print $inifile " echo\n";
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print $inifile " exit\n";
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print $inifile "fi\n";
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print $inifile "cd /\n";
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print $inifile "cp /var/lib/dhclient/dhclient.leases /sysroot/dev/.dhclient-eth0.leases\n";
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print $inifile "mknod /sysroot/dev/console c 5 1\n";
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print $inifile "exec switch_root -c /dev/console /sysroot /sbin/init\n";
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close($inifile);
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open($inifile,">"."/tmp/xcatinitrd.$$/bin/netstart");
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print $inifile "#!/sbin/nash\n";
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print $inifile "network --device eth0 --bootproto dhcp\n";
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close($inifile);
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chmod(0755,"/tmp/xcatinitrd.$$/init");
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chmod(0755,"/tmp/xcatinitrd.$$/bin/netstart");
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@filestoadd=();
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foreach (@ndrivers) {
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if (-f "$pathtofiles/$_") {
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push @filestoadd,[$_,"lib/$_"];
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}
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}
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foreach ("bin/cpio","sbin/nash","sbin/busybox.anaconda","sbin/rmmod") {
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getlibs($_);
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push @filestoadd,$_;
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}
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push @filestoadd,keys %libhash;
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find(\&isnetdriver, <$installroot/netboot/$osver/$arch/$profile/rootimg/lib/modules/*>);
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foreach (@filestoadd) {
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if (ref($_)) {
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my $srcpath = "$installroot/netboot/$osver/$arch/$profile/rootimg/".$_->[0];
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if (-f "$pathtofiles/".$_->[0]) {
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$srcpath="$pathtofiles/".$_->[0];
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}
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copy($srcpath,"/tmp/xcatinitrd.$$/".$_->[1]);
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chmod 0755,"/tmp/xcatinitrd.$$/".$_->[1];
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} else {
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my $srcpath = "$installroot/netboot/$osver/$arch/$profile/rootimg/$_";
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if (-f "$pathtofiles/$_") {
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$srcpatch = "$pathtofiles/$_";
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}
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copy("$srcpath","/tmp/xcatinitrd.$$/$_");
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chmod 0755,"/tmp/xcatinitrd.$$/".$_;
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}
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}
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#copy("$installroot/netboot/$osver/$arch/$profile/rootimg/lib/modules/*d","/tmp/xcatinitrd.$$/$_");
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system("cd /tmp/xcatinitrd.$$;find .|cpio -H newc -o|gzip -9 -c - > $installroot/netboot/$osver/$arch/$profile/initrd.gz");
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system("rm -rf /tmp/xcatinitrd.$$");
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}
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sub isyumdir {
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if ($File::Find::name =~ /\/repodata$/) {
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my $location = $File::Find::name;
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$location =~ s/\/repodata$//;
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push @yumdirs,$location;
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}
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}
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sub isnetdriver {
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foreach (@ndrivers) {
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if ($File::Find::name =~ /$_/) {
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my $filetoadd = $File::Find::name;
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$filetoadd =~ s!$installroot/netboot/$osver/$arch/$profile/rootimg/!!;
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push @filestoadd,[$filetoadd,"lib/$_"];
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}
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}
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}
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sub postscripts { # TODO: customized postscripts
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generic_post();
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if (-d "$installroot/postscripts/hostkeys") {
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for my $key (<$installroot/postscripts/hostkeys/*key>) {
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copy ($key,"$installroot/netboot/$osver/$arch/$profile/rootimg/etc/ssh/");
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}
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chmod 0600,</$installroot/netboot/$osver/$arch/$profile/rootimg/etc/ssh/*key>;
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}
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if (-d "/$installroot/postscripts/.ssh") {
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mkpath("/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh");
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chmod(0700,"/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/");
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for my $file (</$installroot/postscripts/.ssh/*>) {
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copy ($file,"/$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/");
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}
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chmod(0600,</$installroot/netboot/$osver/$arch/$profile/rootimg/root/.ssh/*>);
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}
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}
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sub generic_post { #This function is meant to leave the image in a state approximating a normal install
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my $cfgfile;
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unlink("$installroot/netboot/$osver/$arch/$profile/rootimg/dev/null");
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system("mknod $installroot/netboot/$osver/$arch/$profile/rootimg/dev/null c 1 3");
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open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/fstab");
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print $cfgfile "devpts /dev/pts devpts gid=5,mode=620 0 0\n";
|
||
|
|
print $cfgfile "tmpfs /dev/shm tmpfs defaults 0 0\n";
|
||
|
|
print $cfgfile "proc /proc proc defaults 0 0\n";
|
||
|
|
print $cfgfile "sysfs /sys sysfs defaults 0 0\n";
|
||
|
|
close($cfgfile);
|
||
|
|
open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network");
|
||
|
|
print $cfgfile "NETWORKING=yes\n";
|
||
|
|
close($cfgfile);
|
||
|
|
open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network-scripts/ifcfg-$prinic");
|
||
|
|
print $cfgfile "ONBOOT=yes\nBOOTPROTO=dhcp\nDEVICE=$prinic\n";
|
||
|
|
close($cfgfile);
|
||
|
|
foreach (split /,/,$othernics) {
|
||
|
|
if (/^$/) { next; }
|
||
|
|
open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/sysconfig/network-scripts/ifcfg-$_");
|
||
|
|
print $cfgfile "ONBOOT=yes\nBOOTPROTO=dhcp\nDEVICE=$_\n";
|
||
|
|
close($cfgfile);
|
||
|
|
}
|
||
|
|
open($cfgfile,">","$installroot/netboot/$osver/$arch/$profile/rootimg/etc/rc3.d/S60gettyset");
|
||
|
|
print $cfgfile "#!/bin/bash\n";
|
||
|
|
print $cfgfile "for i in `cat /proc/cmdline`; do\n";
|
||
|
|
print $cfgfile ' KEY=`echo $i|cut -d= -f 1`'."\n";
|
||
|
|
print $cfgfile " if [ \"\$KEY\" == \"console\" ]; then\n";
|
||
|
|
print $cfgfile " VALUE=`echo \$i | cut -d= -f 2`\n";
|
||
|
|
print $cfgfile " COTTY=`echo \$VALUE|cut -d, -f 1`\n";
|
||
|
|
print $cfgfile " COSPEED=`echo \$VALUE|cut -d, -f 2|cut -dn -f 1`\n";
|
||
|
|
print $cfgfile " if echo \$VALUE | grep n8r; then\n";
|
||
|
|
print $cfgfile " FLOWFLAG=\"-h\"\n";
|
||
|
|
print $cfgfile " fi\n";
|
||
|
|
print $cfgfile " echo xco:2345:respawn:/sbin/agetty \$FLOWFLAG \$COTTY \$COSPEED xterm >> /etc/inittab\n";
|
||
|
|
print $cfgfile " init q\n";
|
||
|
|
print $cfgfile " fi\n";
|
||
|
|
print $cfgfile "done\n";
|
||
|
|
close($cfgfile);
|
||
|
|
chmod(0755,"$installroot/netboot/$osver/$arch/$profile/rootimg/etc/rc3.d/S60gettyset");
|
||
|
|
#link("$installroot/netboot/$osver/$arch/$profile/rootimg/sbin/init","$installroot/netboot/$osver/$arch/$profile/rootimg/init");
|
||
|
|
|
||
|
|
rename(<$installroot/netboot/$osver/$arch/$profile/rootimg/boot/vmlinuz*>,"$installroot/netboot/$osver/$arch/$profile/kernel");
|
||
|
|
}
|