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[Libguestfs] [PATCH 1/2] Create an MD variant of the dummy Fedora image



This change involves rewriting make-fedora-img.sh in perl. This allows the
flexibility to write mdadm.conf containing whichever uuids where randomly
generated when the md devices were created.
---
 .gitignore                          |    2 +
 images/Makefile.am                  |   18 +++-
 images/guest-aux/make-fedora-img.pl |  194 +++++++++++++++++++++++++++++++++++
 images/guest-aux/make-fedora-img.sh |  110 --------------------
 4 files changed, 210 insertions(+), 114 deletions(-)
 create mode 100755 images/guest-aux/make-fedora-img.pl
 delete mode 100755 images/guest-aux/make-fedora-img.sh

diff --git a/.gitignore b/.gitignore
index d8f4628..49d3a0c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -167,6 +167,8 @@ images/10klines
 images/abssymlink
 images/debian.img
 images/fedora.img
+images/fedora-md1.img
+images/fedora-md2.img
 images/guest-aux/fedora-name.db
 images/guest-aux/fedora-packages.db
 images/hello.b64
diff --git a/images/Makefile.am b/images/Makefile.am
index 1cae8bf..e413750 100644
--- a/images/Makefile.am
+++ b/images/Makefile.am
@@ -39,7 +39,7 @@ EXTRA_DIST = \
 	test-grep.txt \
 	guest-aux/make-debian-img.sh \
 	guest-aux/debian-packages \
-	guest-aux/make-fedora-img.sh \
+	guest-aux/make-fedora-img.pl \
 	guest-aux/fedora-name.db.txt \
 	guest-aux/fedora-name.db \
 	guest-aux/fedora-packages.db.txt \
@@ -56,7 +56,7 @@ noinst_DATA = test.iso
 
 # This is 'check_DATA' because we don't need it until 'make check'
 # time and we need the tools we have built in order to make it.
-check_DATA = debian.img fedora.img ubuntu.img windows.img
+check_DATA = debian.img fedora.img fedora-md1.img fedora-md2.img ubuntu.img windows.img
 
 CLEANFILES = \
 	test.iso test.sqsh \
@@ -170,12 +170,22 @@ $(builddir)/test-grep.txt.gz: test-grep.txt
 	mv $ -t $@
 
 # Make a (dummy) Fedora image.
-fedora.img: guest-aux/make-fedora-img.sh \
+fedora.img: guest-aux/make-fedora-img.pl \
 		guest-aux/fedora-name.db \
 		guest-aux/fedora-packages.db
 	TMPDIR=$(top_builddir) \
 	SRCDIR=$(srcdir) \
-	bash $<
+	LAYOUT=partitions \
+	../run $<
+
+# Make a (dummy) Fedora image using md devices
+fedora-md1.img fedora-md2.img: guest-aux/make-fedora-img.pl \
+		guest-aux/fedora-name.db \
+		guest-aux/fedora-packages.db
+	TMPDIR=$(top_builddir) \
+	SRCDIR=$(srcdir) \
+	LAYOUT=partitions-md \
+	../run $<
 
 guest-aux/fedora-name.db: guest-aux/fedora-name.db.txt
 	rm -f $@ $ -t
diff --git a/images/guest-aux/make-fedora-img.pl b/images/guest-aux/make-fedora-img.pl
new file mode 100755
index 0000000..a5dfd06
--- /dev/null
+++ b/images/guest-aux/make-fedora-img.pl
@@ -0,0 +1,194 @@
+#!/usr/bin/perl
+# libguestfs
+# Copyright (C) 2010-2011 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Make a standard test image which is used by all the tools test
+# scripts.  This test image is supposed to look like a Fedora
+# installation, or at least enough of one to fool the inspection API
+# heuristics.
+
+use strict;
+use warnings;
+
+use Sys::Guestfs;
+use File::Temp;
+
+my @images;
+my $g = Sys::Guestfs->new();
+
+my $bootdev;
+my $rootdev;
+
+foreach ('LAYOUT', 'SRCDIR') {
+  defined($ENV{$_}) or die "Missing environment variable: $_";
+}
+
+if ($ENV{LAYOUT} eq 'partitions') {
+  push (@images, 'fedora.img.tmp');
+
+  open(my $fstab, '>', 'fstab.tmp') or die;
+  print $fstab <<EOF;
+LABEL=BOOT /boot ext2 default 0 0
+LABEL=ROOT / ext2 default 0 0
+EOF
+  close($fstab) or die;
+
+  $bootdev = '/dev/sda1';
+  $rootdev = '/dev/sda2';
+
+  open(my $img, '>', 'fedora.img.tmp') or die;
+  truncate($img, 512*1024*1024) or die;
+  close($img) or die;
+
+  $g->add_drive('fedora.img.tmp');
+  $g->launch();
+
+  $g->part_init('/dev/sda', 'mbr');
+  $g->part_add('/dev/sda', 'p', 64, 524287);
+  $g->part_add('/dev/sda', 'p', 524288, -64);
+}
+
+elsif ($ENV{LAYOUT} eq 'partitions-md') {
+  push(@images, 'fedora-md1.img.tmp', 'fedora-md2.img.tmp');
+
+  open(my $fstab, '>', 'fstab.tmp') or die;
+  print $fstab <<EOF;
+/dev/md0 /boot ext2 default 0 0
+LABEL=ROOT / ext2 default 0 0
+EOF
+  close($fstab) or die;
+
+  $bootdev = '/dev/md/boot';
+  $rootdev = '/dev/md/root';
+
+  foreach my $img (@images) {
+    open(my $fh, '>', $img) or die;
+    truncate($fh, 512*1024*1024) or die;
+    close($fh) or die;
+
+    $g->add_drive($img);
+  }
+
+  $g->launch();
+
+  # Format the disks.
+  foreach ('a', 'b') {
+    $g->part_init("/dev/sd$_", 'mbr');
+    $g->part_add("/dev/sd$_", 'p', 64, 524287);
+    $g->part_add("/dev/sd$_", 'p', 524288, -64);
+  }
+
+  $g->mdadm_create('boot', ['/dev/sda1', '/dev/sdb1']);
+  $g->mdadm_create('root', ['/dev/sda2', '/dev/sdb2']);
+
+  open(my $mdadm, '>', 'mdadm.tmp') or die;
+  print $mdadm <<EOF;
+MAILADDR root
+AUTO +imsm +1.x -all
+EOF
+
+  my $i = 0;
+  foreach ('boot', 'root') {
+    my %detail = $g->mdadm_detail("/dev/md/$_");
+    print $mdadm "ARRAY /dev/md$i level=raid1 num-devices=2 UUID=",
+                 $detail{uuid}, "\n";
+    $i++;
+  }
+
+  close($mdadm) or die;
+}
+
+else {
+  print STDERR "$0: Unknown LAYOUT: ",$ENV{LAYOUT},"\n";
+  exit 1;
+}
+
+$g->pvcreate($rootdev);
+$g->vgcreate('VG', [$rootdev]);
+$g->lvcreate('Root', 'VG', 32);
+$g->lvcreate('LV1', 'VG', 32);
+$g->lvcreate('LV2', 'VG', 32);
+$g->lvcreate('LV3', 'VG', 64);
+
+# Phony /boot filesystem
+$g->mkfs_opts('ext2', $bootdev, blocksize => 4096);
+$g->set_e2label($bootdev, 'BOOT');
+$g->set_e2uuid($bootdev, '01234567-0123-0123-0123-012345678901');
+
+# Phony root filesystem.
+$g->mkfs_opts('ext2', '/dev/VG/Root', blocksize => 4096);
+$g->set_e2label('/dev/VG/Root', 'ROOT');
+$g->set_e2uuid('/dev/VG/Root', '01234567-0123-0123-0123-012345678902');
+
+# Enough to fool inspection API.
+$g->mount_options('', '/dev/VG/Root', '/');
+$g->mkdir('/boot');
+$g->mount_options('', $bootdev, '/boot');
+$g->mkdir('/bin');
+$g->mkdir('/etc');
+$g->mkdir('/etc/sysconfig');
+$g->mkdir('/usr');
+$g->mkdir_p('/var/lib/rpm');
+
+$g->upload('fstab.tmp', '/etc/fstab');
+$g->write('/etc/redhat-release', 'Fedora release 14 (Phony)');
+$g->write('/etc/fedora-release', 'Fedora release 14 (Phony)');
+$g->write('/etc/sysconfig/network', 'HOSTNAME=fedora.invalid');
+
+if (-f 'mdadm.tmp') {
+  $g->upload('mdadm.tmp', '/etc/mdadm.conf');
+  unlink('mdadm.tmp') or die;
+}
+
+$g->upload('guest-aux/fedora-name.db', '/var/lib/rpm/Name');
+$g->upload('guest-aux/fedora-packages.db', '/var/lib/rpm/Packages');
+
+$g->upload($ENV{SRCDIR}.'/bin-x86_64-dynamic', '/bin/ls');
+
+$g->mkdir('/boot/grub');
+$g->touch('/boot/grub/grub.conf');
+
+# Test files.
+$g->write('/etc/test1', 'abcdefg');
+$g->write('/etc/test2', '');
+$g->write('/etc/test3',
+'a
+b
+c
+d
+e
+f');
+$g->write('/bin/test1', 'abcdefg');
+$g->write('/bin/test2', 'zxcvbnm');
+$g->write('/bin/test3', '1234567');
+$g->write('/bin/test4', '');
+$g->ln_s('/bin/test1', '/bin/test5');
+$g->mkfifo(0777, '/bin/test6');
+$g->mknod(0777, 10, 10, '/bin/test7');
+
+# Other filesystems.
+# Note that these should be empty, for testing virt-df.
+$g->mkfs_opts('ext2', '/dev/VG/LV1', blocksize => 4096);
+$g->mkfs_opts('ext2', '/dev/VG/LV2', blocksize => 1024);
+$g->mkfs_opts('ext2', '/dev/VG/LV3', blocksize => 2048);
+
+# Cleanup
+unlink('fstab.tmp') or die;
+foreach my $img (@images) {
+  $img =~ /^(.*)\.tmp$/ or die;
+  rename($img, $1) or die;
+}
diff --git a/images/guest-aux/make-fedora-img.sh b/images/guest-aux/make-fedora-img.sh
deleted file mode 100755
index b4c07e9..0000000
--- a/images/guest-aux/make-fedora-img.sh
+++ /dev/null
@@ -1,110 +0,0 @@
-#!/bin/bash -
-# libguestfs
-# Copyright (C) 2010-2011 Red Hat Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-# Make a standard test image which is used by all the tools test
-# scripts.  This test image is supposed to look like a Fedora
-# installation, or at least enough of one to fool the inspection API
-# heuristics.
-
-export LANG=C
-set -e
-
-# fstab file.
-cat > fstab.tmp <<EOF
-LABEL=BOOT /boot ext2 default 0 0
-LABEL=ROOT / ext2 default 0 0
-EOF
-
-# Create a disk image.
-../run ../fish/guestfish <<EOF
-sparse fedora.img.tmp 512M
-run
-
-# Format the disk.
-part-init /dev/sda mbr
-part-add /dev/sda p 64     524287
-part-add /dev/sda p 524288    -64
-
-pvcreate /dev/sda2
-vgcreate VG /dev/sda2
-lvcreate Root VG 32
-lvcreate LV1 VG 32
-lvcreate LV2 VG 32
-lvcreate LV3 VG 64
-
-# Phony /boot filesystem.
-mkfs-opts ext2 /dev/sda1 blocksize:4096
-set-e2label /dev/sda1 BOOT
-set-e2uuid /dev/sda1 01234567-0123-0123-0123-012345678901
-
-# Phony root filesystem.
-mkfs-opts ext2 /dev/VG/Root blocksize:4096
-set-e2label /dev/VG/Root ROOT
-set-e2uuid /dev/VG/Root 01234567-0123-0123-0123-012345678902
-
-# Enough to fool inspection API.
-mount-options "" /dev/VG/Root /
-mkdir /boot
-mount-options "" /dev/sda1 /boot
-mkdir /bin
-mkdir /etc
-mkdir /etc/sysconfig
-mkdir /usr
-mkdir-p /var/lib/rpm
-
-upload fstab.tmp /etc/fstab
-write /etc/redhat-release "Fedora release 14 (Phony)"
-write /etc/fedora-release "Fedora release 14 (Phony)"
-write /etc/sysconfig/network "HOSTNAME=fedora.invalid"
-
-upload guest-aux/fedora-name.db /var/lib/rpm/Name
-upload guest-aux/fedora-packages.db /var/lib/rpm/Packages
-
-upload ${SRCDIR}/bin-x86_64-dynamic /bin/ls
-
-mkdir /boot/grub
-touch /boot/grub/grub.conf
-
-# Test files.
-write /etc/test1 "abcdefg"
-write /etc/test2 ""
-upload -<<__end /etc/test3
-a
-b
-c
-d
-e
-f
-__end
-write /bin/test1 "abcdefg"
-write /bin/test2 "zxcvbnm"
-write /bin/test3 "1234567"
-write /bin/test4 ""
-ln-s /bin/test1 /bin/test5
-mkfifo 0777 /bin/test6
-mknod 0777 10 10 /bin/test7
-
-# Other filesystems.
-# Note that these should be empty, for testing virt-df.
-mkfs-opts ext2 /dev/VG/LV1 blocksize:4096
-mkfs-opts ext2 /dev/VG/LV2 blocksize:1024
-mkfs-opts ext2 /dev/VG/LV3 blocksize:2048
-EOF
-
-rm fstab.tmp
-mv fedora.img.tmp fedora.img

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