This patch changes the iallocator framework to work with and properly
export to plugins offline nodes. It does this by only exporting the
static configuration data for those nodes, and not attempting to parse
the runtime data.

The patch also fixes bugs in iallocator related to the RpcResult
conversion, changes the should_run to admin_up attribute name (as per
the internals change), and adds “-I” as a short option for
“--iallocator” in gnt-instance, gnt-backup and burnin.

Reviewed-by: ultrotter

This patch changes (significantly) the execution model in burnin:
  - for all runs, (almost) all instance mods in a single Burn* procedure
    are done as part of a job; so for example add disk, stop, remove
    disk, start are no longer done as separate jobs but as a single job
    consisting of four opcodes
  - for parallel runs, all Burn* procedures except the rename (which
    uses a single target name) run in parallel; before, only the
    creation was done in parallel
  - due to the single-job execution and also parallel execution, the
    logging messages are no longer happening synchronously with the
    execution, so they are more informative than an actual execution log

The end result is that burnin now tests properly multi-opcode jobs and
also tests all opcodes (except rename) for parallel execution.

Note: On a test cluster, parallelization reduces burnin time from 23m to
15m.

Reviewed-by: ultrotter

The urllib2 module has very bad error handling. This patch changes to urllib
which is simpler, and we derive a custom class from the FancyURLopener. Burning
is no longer keeping sockets in CLOSE_WAIT state with this patch.

Reviewed-by: ultrotter

In case we pass --disk-grow 0[,0..] then we should not call GrowDisks as it
prints confusing log lines.

Reviewed-by: imsnah

This patch adds a burnin option to keep instances at the end, so that
debugging after a burnin failure is easier.

Also, we reorder the command line parsing and client query so that one
can use ./tools/burnin --help even on non-ganeti machines.

Reviewed-by: ultrotter

Reviewed-by: ultrotter

This is again a copy of the latest 1.2 burnin code related to migration.

Reviewed-by: ultrotter

Since we added many more tests in burnin, the output became almost
unreadable. This patch changes the output to an indented one, so that
the different phases and operations of burnin are more easily
understood.

Reviwed-by: ultrotter

Traditionally the start/stop test was the last, so move it back to there
(added as last option in commit 854).

Reviewed-by: amishchenko

This patch adds instance alive checks after most start operations. The
check is done in a custom way:
  - the instance is expected to have an http server up and running
  - and it should server the '/hostname.txt' resource containing the
    hostname of the instance

This allows checking that:
  - creation is working OK
  - start after failover (and in the future migrate) is ok
  - rename works correctly

By default, the check is disabled since one needs a custom OS for this
check.

The patch also fixes a wrong variable name from a previous burnin patch.

Reviewed-by: ultrotter

This patch adds testing of add/remove disks and NICs to the burnin.

Reviewed-by: imsnah

Reviewed-by: imsnah

This patch updates burnin to the latest replace disks constant, and
changes the constants' values to be more accurate.

Reviewed-by: imsnah

This patch makes burnin skip the offline nodes in it's builtin node
selection. It also removes an extra line.

Reviewed-by: imsnah

These two operations were missing from burnin. The reboot is done with
all valid modes (a new constant is added), and the reinstall is done
both with and without specifying the OS (to account for the two code
paths in the LU).

Reviewed-by: imsnah

This is currently not supported, so don't try to do export/import in
this case.

Reviewed-by: imsnah

This allows burnin to work with diskless instances (since we cannot pass
right now no disks to it).

Reviewed-by: imsnah

Update the call to CreateInstance used in ImportExport to the new API for
multidisk/nic.

Reviewed-by: iustinp

This looks beter than '0 disk'.

Reviewed-by: ultrotter

Reviewed-by: ultrotter

This patch adds support for mult-disk/multi-nic in:
  - instance add
  - burnin

The start/stop/failover/cluster verify work as expected. Replace disk
and grow disk are TODO.

There's also a change gnt-job to allow dictionaries to be listed in
gnt-job info.

Reviewed-by: imsnah

Since now we use only one function from the logger module
(SetupLogging), we move it to utils.py (which is already imported by all
users of this function), and we remove the module.

Reviewed-by: imsnah

The patch adds a new ‘--no-wait-for-sync’ parameter to grow-disk similar
to the one in instance add, and changes the default to wait.

This is cleaner as at the moment when the command returns, we either
have a fully synced disk or there is an error.

This is a forward-port of rev 1183 on the 1.2 branch.

Reviewed-by: ultrotter

With this patch both the os and the swap disk are grown during
burnin. You can pass an increase size of 0 to skip this operation.

and:

burnin: don't try to grow diskless instances

    When burnin is run on a diskless instance, it fails when trying
    GrowDisk, because a non-existant disk cannot be grown. This patch
    disables the test for that disk template.

This is a forward-port of revisions 1181 and 1606 on the 1.2 branch.

Original author: ultrotter
Reviewed-by: ultrotter

This big patch changes the master code to use the beparams. Errors might
have crept in, but it passes a small burnin.

Reviewed-by: ultrotter

Since the objects read from the config file are passed to the various
threads, it's unsafe to re-read the config file (and throw away
ConfigWriter._config_data). As such, we disable the re-reading of the
file (since now the master is the owner the file, it makes not sense to
re-read it), and any modifications to the file must be done offline,
otherwise they will be overwritten.

Reviewed-by: imsnah

This patch introduces a simple framework for executing jobs in parallel
in burnin (the ExecJobSet function) and the "--parallel" command line
flag.

The patch also changes the instance creation to run in parallel when the
above flag is given. Error handling/instance removal is currently flacky
with this options if there are errors in the instance creation.

We also modify burnin to reuse a single client.

Reviewed-by: imsnah

There is no such feature in trunk yet.

Reviewed-by: iustinp

Merged from branches/ganeti/ganeti-1.2 r1648
Use static values for new hvm instance flags

Reviewed-by: iustinp

This is a result of the log timestamp changes.

Reviewed-by: imsnah

The 'old-style' info, error, debug logs do not make much sense. This
patch unifies the SetupLogging and SetupDaemon functions. As a result,
all the commands logs to a 'commands.log' file.

The patch also changes the log setup to keep going if there's an error
in setting up the file logging but we're logging to stderr.

Also, burnin now logs to its own file (burnin.log).

Reviewed-by: ultrotter

Currently, the feedback_fn argument to SubmitOpCode is no longer used.
We still need it in burnin, so we re-enable it by making the code call
that function with the msg argument in case feedback_fn is callable. The
patch also modifies burnin to accept the new argument format (msg is not
a triple instead of a string).

The patch also removes the ‘proc’ argument as it's obsolete; instead we
can accept a luxi.Client instance (noone uses this right now).

Reviewed-by: ultrotter

In 2.0 burnin submits job to the master daemon, so it doesn't need to
create an internal Processor anymore. Even if the processor is not used
anywhere in the burnin code it was still initialized as a leftover of
how burnin used to work. Fixing this.

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

This change allows us to use cleaner dependencies between
directories. The build system is basically rewritten in large parts
and may contain bugs.

Reviewed-by: iustinp

Currently the iallocator option is ignored by burnin at import/export
time even if passed in. With this patch it becomes used. The log message
used by the importer is also changed to reflect this.

This patch also improves import/export on the non-iallocator case:
  - The secondary node is not passed anymore on non-mirrored templates
  - On mirrored templates the secondary node is logged

Reviewed-by: imsnah

- Shorter code
- Reorder arguments to logger.SetupLogging calls to make more sense

Reviewed-by: iustinp

Currently: the LURemoveInstance.Exec() method uses the ignore_failures
attribute of the OpRemoveInstance opcode, but it doesn't check for its
existence. The patch adds this attribute to _OP_REQP and to all the
places where this opcode was created.

This attributes is always passed by gnt-instance, but burnin didn't pass
it so it can fail if it enters the 'fail to remove disks' branch of the
method (which is why it was not triggered until now).

Reviewed-by: ultrotter, imsnah