When importing an instance with the same name as the exported one if the
mac address is "auto" we try to reuse the previous mac address. One can
still force generation of a new one with mac="generate".

Forward-port-of: r1887, Reviewed-by: iustinp

Reviewed-by: imsnah

VALUE_GENERATE is handled exactly the same as VALUE_AUTO and the mac
address is generated randomly.

Forward-port-of: r1886, Reviewed-by: iustinp

Reviewed-by: imsnah

Before 'auto' was the only allowed possibility

Forward-port-of: r1885, Reviewed-by: iustinp

Reviewed-by: imsnah

'auto' is used in multiple place in the code with a meaning similar to
'default', 'generate' will be used to force generation of mac addresses
when the default would be to reuse an old one.

Forward-port-of: r1884, Reviewed-by: iustinp

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

Reviewed-by: imsnah

Note that many uses of logger.Error were used in 1.2 for their
side-effect of logging to stderr, where the user will see the messages,
and not for having the entry in the log. As such, we need to go over and
review every use of logging.* and decide if it should use feedback_fn
instead of being a logging call.

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Reviewed-by: imsnah

Some names were wrong, and similar stuff detected by pylint.
gnt-debug.GenericOpCode is still broken.

Reviewed-by: imsnah

Currently the gnt-* scripts are using a mix of print, logger.ToStd* and
sys.stderr.write. We convert them all to using cli.ToStdout/err. This
way, we can easily change the implementation for all at once.

Reviewed-by: imsnah

We also add two function for printing messages, so that scripts won't
have to import logger to get these. They are a simple extension over the
logger ones, as they accept the call style from logging:
 ToStdout("Message: %s", msg)
(instead of requiring formatting by the client.

Reviewed-by: imsnah

The gnt-instance modify didn't work correctly w.r.t the be parameters.
There was also a typo in the corresponding LU.

Reviewed-by: imsnah

We no longer use a single, cluster-wide hypervisor, but configure the
actual to be used hypervisor on the instance level. The option has already
been removed from gnt-cluster.

Reviewed-by: imsnah

All users of this code have been migrated to the new and shiny HttpServer
class.

It also fixes a typo in the ApacheLogfile unittests. It has not yet been
decided whether we should keep ApacheLogfile or not, hence leaving it in.

Reviewed-by: ultrotter

We no longer use a single, cluster-wide hypervisor, but configure the
actual to be used hypervisor on the instance level.

Reviewed-by: imsnah

Reviewed-by: iustinp

Reviewed-by: iustinp

- remove now unused osdev and swapdev arguments from backend, noded,
  rpc, cmdlib
- convert docstrings to epydoc

Reviewed-by: iustinp

Since they're not converted to API 10 yet, we temporarily disable the
import/export functions.

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

This function calculates the basic environment for OS scripts in API
version 10.

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Plus update it with the real variable name

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: iustinp

Reviewed-by: imsnah

This fixes removals of the pid files and clean exit in the init script

Reviewed-by: iustinp

There is no point in initializing sigchld_handler as an empty dict, when
it will be overwritten by an instance of utils.SignalHandler
immediately after.

Reviewed-by: iustinp

I broke it with rev 1864. This patch also removes whitespace at
line endings.

Reviewed-by: amishchenko

This patch enables the cluster modify to change:
  - enabled hypervisor list
  - hvparams (per hypervisor)
  - beparams (only the default group)

Syntax:
  gnt-cluster modify -B vcpus=3 -H xen-pvm:no_initrd_path

Validation for parameters is somewhat missing - the individual
hypervisors will be checked for syntax and validation, but beparams
doesn't have validation yes (nowhere), it should be added here once we
have a global method (will come soon).

Reviewed-by: imsnah

Requests are no longer logged to a separate file.

Reviewed-by: amishchenko

In rst a final _ is used for linking. Escaping it prevents an error at
compile time on design-2.0-cluster-parameters.rst

Reviewed-by: iustinp

This is just a raw update without any special formatting.

Reviewed-by: imsnah

Reviewed-by: iustinp

Internally in ganeti we already have renamed the instance, so it's
better to pass the new name in INSTANCE_NAME and the old one in
OLD_INSTANCE_NAME rather than the old name in INSTANCE_NAME and the new
one in NEW_INSTANCE_NAME as this reflects what the cluster thinks.

Reviewed-by: iustinp