[PATCH OSSTEST 11/12] Changes on test step of debain hvm guest install

[Robert Ho <robert.hu@intel.com>]

 This patch is to make ts-debian-hvm-install accomodate
 to nested L1 and L2 guest installation context. 1. Add an input param
 'nested' to indicate which installation    context is. and manipulating 'gn'
 accordingly. 2. increase disk size to accomodate to nested test requirment.
 3. increase root partition size in preseed generation. 4. in L2 installation
 context, need to explicitly get its MAC    address from run var. 5. in hvm
 guest configuration file, add '#nestedhvm=1', which will    later be
 uncommented by guest_editconfig_cd() after xen installed    in L1, and about
 to boot into a nested xen environment. 6. in L1 installation context, assign
 more memory to it; since it    acts as a nested hypervisor anyway. 7.
 allocate a vg (vollum group) from L0 disk space, and attach it    it to L1,
 used dedicatedly for L2 disk space. 8. In L1 installation context, need to
 store some run vars ( its IP,    name, ident), so that in later L2
 installation context, can fetch    these information. 9. In L2 installation,
 after it's created, installed and reboot    successfully, we then power it
 off.

---
 ts-debian-hvm-install | 63 +++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 10 deletions(-)

diff --git a/ts-debian-hvm-install b/ts-debian-hvm-install
index 37eade2..e905698 100755
--- a/ts-debian-hvm-install
+++ b/ts-debian-hvm-install
@@ -28,22 +28,30 @@ if (@ARGV && $ARGV[0] =~ m/^--stage(\d+)$/) { $stage=$1; shift @ARGV; }
 
 defined($r{bios}) or die "Need to define which bios to use";
 
-our ($whhost,$gn) = @ARGV;
+our ($whhost,$gn,$nested) = @ARGV;
 $whhost ||= 'host';
-$gn ||= 'debianhvm';
-
+$nested ||= '';
+our $guesthost;
+our $L1_IP;
+if ($nested eq 'nested_L1') {
+    $gn ||= 'nested';
+    $guesthost ||= "$gn.l1.osstest";
+} elsif ($nested eq 'nested_L2') {
+    $whhost = 'L1_host';
+    $gn ||= 'nested2';
+    $guesthost ||= "$gn.l2.osstest";
+} else {
+    $gn ||= 'debianhvm';
+    $guesthost= "$gn.guest.osstest";
+}
 our $ho= selecthost($whhost);
-
+our $disk_mb= 15000;
 # guest memory size will be set based on host free memory, see below
 our $ram_mb;
-our $disk_mb= 10000;
-
-our $guesthost= "$gn.guest.osstest";
 our $gho;
 
 our $toolstack= toolstack()->{Command};
 
-
 sub preseed () {
 
     my $preseed_file = preseed_base('wheezy','',());
@@ -63,7 +71,7 @@ d-i partman-auto/expert_recipe string \\
                         use_filesystem{ } filesystem{ vfat } \\
                         mountpoint{ /boot/efi } \\
                 . \\
-                5000 50 5000 ext4 \\
+                10000 50 10000 ext4 \\
                         method{ format } format{ } \\
                         use_filesystem{ } filesystem{ ext4 } \\
                         mountpoint{ / } \\
@@ -135,6 +143,7 @@ sub prep () {
     $gho= prepareguest($ho, $gn, $guesthost, 22,
                        $disk_mb + 1,
                        200);
+    $gho->{"${gn}_ether"} = select_ether($ho,"${gn}_ether") if $nested eq 'nested_L2';
     my $base = "/root/$flight.$job.$gn-";
     my $newiso= $base . "newiso";
     my $emptydir= $base . "empty-dir";
@@ -155,6 +164,7 @@ sub prep () {
     more_prepareguest_hvm($ho,$gho, $ram_mb, $disk_mb,
                           OnReboot => 'preserve',
                           Bios => $r{bios},
+                          ExtraConfig => '#nestedhvm=1',
                           PostImageHook => sub {
         my $cmds = iso_copy_content_from_image($gho, $newiso);
         $cmds .= prepare_initrd($initrddir,$newiso,$preseed_file_path);
@@ -176,11 +186,28 @@ my $ram_minslop = 100;
 my $ram_lots = 5000;
 if ($host_freemem_mb > $ram_lots * 2 + $ram_minslop) {
     $ram_mb = $ram_lots;
+} elsif ($nested eq 'nested_L1') {
+    $ram_mb = 3072;
 } else {
     $ram_mb = 768;
 }
 logm("Host has $host_freemem_mb MB free memory, setting guest memory size to $ram_mb MB");
 
+if ($nested eq 'nested_L2') {
+    my $L2_disk_mb = 20000;
+    my $L0= selecthost($r{'L0_Ident'});
+    my $vg = $L0->{Name};
+    $vg .= ".$c{TestHostDomain}" if ($L0->{Suite} =~ m/lenny/);
+    my $L1_domname = $r{"$ho->{Name}_domname"};
+    target_cmd_root($L0, "lvremove -f /dev/${vg}/${gn} ||:");
+    target_cmd_root($L0, "lvcreate -L ${L2_disk_mb}M -n ${gn} ${vg}");
+    target_cmd_root($L0, "dd if=/dev/zero of=/dev/${vg}/${gn} count=10");
+    target_cmd_root($L0, "xl block-attach $L1_domname /dev/${vg}/${gn},raw,sdb,rw");
+    target_install_packages_norec($ho, qw(lvm2 rsync genisoimage));
+    target_reboot($ho);
+    target_cmd_root($ho, "pvcreate /dev/sdb && vgcreate ${gn}_vg /dev/sdb");
+}
+
 if (!$stage) {
     prep();
     guest_create($gho,$toolstack);
@@ -192,7 +219,23 @@ if ($stage<2) {
     guest_destroy($ho,$gho);
 }
 
-guest_editconfig_nocd($gho,$emptyiso);
+if ($nested) {
+    guest_editconfig_cd($gho);
+} else {
+    guest_editconfig_nocd($gho,$emptyiso);
+}
 guest_create($gho,$toolstack);
 guest_await_dhcp_tcp($gho,300);
 guest_check_up($gho);
+
+if ($nested eq 'nested_L2') {
+    target_cmd_root($gho, "init 0");
+    target_await_down($gho,60);
+    target_ping_check_down($gho);
+}
+if ($nested eq 'nested_L1') {
+    store_runvar("L1_host", $gn);
+    store_runvar("L1_IP", $gho->{Ip});
+    store_runvar("L0_Ident", $whhost);
+    target_cmd_root($gho, "mkdir -p /home/osstest/.ssh && cp /root/.ssh/authorized_keys /home/osstest/.ssh/");
+}
-- 
1.8.3.1