This patch adds support for specifying and changing the boot device order for
HVM instances. The boot device order specification is ignored for non HVM
instances.

Reviewed-by: iustinp

The second paramenter of --node was not described in gnt-backup. Add
information about it.

Reviewed-by: imsnah

Copy it from gnt-instance(8) for uniformity

Reviewed-by: imsnah

Reviewed-by: imsnah

Since it's an import the os is implied to be the one which performed the
export. No -o option is accepted. Reflect this in the manpage.

Reviewed-by: imsnah

Update gnt-backup import to be in line with gnt-instance add about the os disk
size option. Thanks to Gunnar Wagenknecht for spotting the issue.

Reviewed-by: imsnah

First step to support custom boot device order for HVM instances, add a
location to actually store that information for the instance.

Reviewed-by: iustinp

Reviewed-by: schreiberal

Reviewed-by: schreiberal

This patch modifes the ‘gnt-instance’ instance manpage with the new
‘--kernel’ and ‘--initrd’ options.

Reviewed-by: imsnah

This patch changes the hypervisor to use the new kernel and initrd
instance attributes. They kernel is handled as expected (use the custom
or the default one), but the initrd is treated a little bit special, in
order to keep compatibility with previous behaviour:
  - if customized and not found, raise an error
  - if default and not found, do not use one

Reviewed-by: imsnah

This patch changes the info subcommand to nicely show the kernel and
initrd paths.

Reviewed-by: imsnah

This patch adds support for defining the kernel/initrd at instance
creation time, using the same interface as in instance modify.

Reviewed-by: imsnah

This patch adds support in ‘gnt-instance modify’ to set the kernel and
initrd paths. The user can pass either 'default' or 'none' (none is not
valid for kernel).

Reviewed-by: imsnah

This patch adds two new attributes to the instance object:
  - kernel_path
  - object_path

The code ignores them and the configuration handling is not broken by
this addition.

Reviewed-by: imsnah

Reviewed-by: schreiberal

This patch fixes the ‘make distcheck’ breakage caused by missing test data in
the archive and missing handling of builddir!=srcdir case.

Reviewed-by: schreiberal

This patch improves the ‘gnt-cluster verify-disks’ command by adding
support for detecting broken volume groups and missing logical volume
names.

As such, we don't try anymore to activate disks for instances that are
not likely to succeed anyway, and instead report them.

Reviewed-by: schreiberal

This patch changes the Assemble() method for logical volumes from a noop
to do a `lvchange -ay` on the logical volume; this ensures that if the
logical volume is not active, we are able to activate and use it.

Reviewed-by: imsnah

This patch fixes the double attach operation in bdev.AttachOrAssemble,
which was an indentation mistake in the first place.

Reviewed-by: imsnah

This patch changes the bdev.DRBD8._GetDevInfo to take a string instead
of a minor, separates the `drbdsetup show` invocation into a new
separate method (bdev.DRBD8._GetShowData) and modifies the rest of the
DRBD8 class to make the appropriate calls.

It also adds a unittest script and data files for testing various cases
of device output.

Reviewed-by: imsnah

Document the ability to set and change the MAC address for instances.

Reviewed-by: iustinp

Allow the MAC address of an instance to be specified optionally during
instance creation and later to be changed via instance modify.

Reviewed-by: iustinp

Update documentation to document the HVM proof-of-concept.

Reviewed-by: iustinp

This patch implements a first proof-of-concept for HVM support in Ganeti.
Due to the nature of this patch, it is intended for test environments
only.

Reviewed-by: iustinp

Wrap error handling around creating the instance config file.

Reviewed-by: iustinp

Abstract the parts of the Xen hypervisor interface shared by both PVM and
HVM into a generic interface, subclass the special case PVM from that.

Prepatch for adding HVM support.


Reviewed-by: iustinp

Currently, RunCmd is written with the assumption that programs will have
a small stderr output, therefore we read the child's stdout (which can
be big, so we don't want to block the child) and then the stderr (which
is small, so it shouldn't block).

However, with the ‘gnt-cluster verify-disks’ command, we ourselves
generate heavy stderr, therefore we break the ganeti-watcher which runs
the verify-disks via utils.RunCmd.

This patch turns the RunCmd command into an poll-based one, which means
any kind of interleaved output by a child on stdout/stderr will be
handled correctly. Of course, since the output is buffered in memory,
there are other ways to break RunCmd(). But at least this should fix the
common case.

Reviewed-by: hansmi

Change the internal hypervisor API for GetShellCommandForConsole, we
now call it with the instance instead of just the instance name.

This is a prep patch for HVM, since HVM needs more than just the instance
name to determine a way of console access.

(this is a resend due to mail adress tyop)

Reviewed-by: iustinp

Move constant definitions for hypervisor into constants.py

Reviewed-by: ultrotter

hint is declared as a named argument for the LogWarning function. Make its
caller pass it naming it.

Reviewed-by: iustinp

Extends the instance object by adding a port item, also adds changes
to print this port via gnt-instance info.

Reviewed-by: iustinp

Since 8.0.6 and lower have issues that break Ganeti's usage of drbd,
this patch notes the required version of DRBD.

Reviewed-by: ultrotter

When waiting for the lock and pressing ^C, the user will get a backtrace
as the KeyboardInterrupt exception is not handled. The patch adds a
simple method of handling it.

Note that this is not about ^C in any other place.

Reviewed-by: schreiberal,imsnah

This adds some information about the new ‘verify-disks’ command.

Reviewed-by: imsnah

This patch modifies the watcher to run the ‘gnt-cluster verify-disks’
command and to log its output (if any).

Reviewed-by: imsnah

This patch adds the OpVerifyDisks handling in mcpu.py and the
verify-disks command in the gnt-cluster script, which for every instance
computed by LUVerifyDisks submits a new OpActivateInstanceDisks request.

Reviewed-by: imsnah

This patch adds a new LUVerifyDisks that implements the OpVerifyDisks.
The algorithm is that by determining not-used logical volumes for
instances that are supposed to be running, we presume from there that
the DRBD devices are not online and therefore one should
‘activate-disks’ for those instances.

Reviewed-by: imsnah

This patch adds the definition of a new opcode that will be used to
compute the list of instances with not-online disks.

Reviewed-by: imsnah

Currently, the volume_list call returns only the volume size. However,
it is useful to also have two other things: the 'inactive' state of the
volume (which might trigger a ‘vgchange -a y’ on the volume group) and
the online state (which shows if the volume is in use or not).

Since this modifies an RPC call, we also bump the protocol version,
although the single user of the call didn't care about the dictionary
values, only about the keys.

Reviewed-by: imsnah