This patch unifies the netutils functions dealing with IP addresses to
three classes:
- IPAddress: Common IP address functionality
- IPv4Address: IPv4 specific functionality
- IPv6address: IPv6-specific functionality

Furthermore it adds methods to check whether an address is a loopback
address, replacing the .startswith("127") for IPv4 and adding IPv6
support.

It also provides the basis for future IPv6 address handling. Methods to
convert IP strings to their corresponding interger values will allow to
canonicalize IPv6 addresses.

Signed-off-by: Manuel Franceschini <livewire@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

* devel-2.1:
  Fix path in ganeti-rapi man page
  Adjust message in case ~/.ssh is no directory

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This patch reintroduces the live parameter, for backwards compatibility
at the Luxi level. This way, clients can work transparently with both
2.1 and 2.2, even though sub-optimally.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This takes care of issue 116.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

The workerpool should not keep any reference to task arguments after
they were processed by RunTask. Doing so led to jobs being cached
by the job queue's WeakValueDictionary for longer than they should've
been.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Manuel Franceschini <livewire@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Manuel Franceschini <livewire@google.com>

“gnt-backup export” requires the target node. Until now, the master
daemon would complain that the “parameter
'OP_BACKUP_EXPORT.target_node' fails validation”. With this patch,
an additional check is done in the client program.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Manuel Franceschini <livewire@google.com>

_DiskTransferPrivate takes three parameters, not two.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Manuel Franceschini <livewire@google.com>

Use actual path, not something hardcoded.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

With this patch, a new PycURL object will be created for each request.
This should make the RAPI client safe for simultaneous calls from
multiple threads. Unittests are adjusted accordingly.

An unnecessary variable assignment is also removed from the unittest
script.

This patch survived a small QA and unittests.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

Signed-off-by: Manuel Franceschini <livewire@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This patch fixes a bug reported in [0]. Newer drbd versions can have
another digit beyond the regular major, minor and point release digits.
We modify the regex used to match that with an optional parts which is
not saved.

Furthermore it adds unittests that test for these different cases. Now
the data read from /proc is passed into the _GetVersion method, which
makes testing easier.

[0] http://code.google.com/p/ganeti/issues/detail?id=110



Signed-off-by: Manuel Franceschini <livewire@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Also add some assertions.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Before strict checking was implemented, NIC IP addresses could be set
to “None”. Commit bd061c35 added more strict checking, including
enforcing the IP address to be a string. With this new type, it
can again be set to None.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This patch fixes two issues with job archival. First, the
LoadJobFromDisk can return 'None' for no-such-job, and we shouldn't add
None to the job list; we can't anyway, as this raises an exception:

  node1# gnt-job archive foo
  Unhandled protocol error while talking to the master daemon:
  Caught exception: cannot create weak reference to 'NoneType' object

After fixing this, job archival of missing jobs will just continue
silently, so we modify gnt-job archive to log jobs which were not
archived and to return exit code 1 for any missing jobs.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

If we call burning with only existing instance, then it will fail to
create any of them, and thus in the removal phase it won't have anything
to remove. Since calling luxi.SUBMIT_MULTIPLE_JOBS with an empty job set
is an error (and will raise an exception), this creates a very strange
error in burnin (which is unfortunately hidden by ExecJobSet()).

As such, we modify CommitQueue to return immediately if it has an empty
op queue.

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Currently, we require both --force and --force-multiple for skipping the
confirmation on instance reinstalls. After offline conversations, this
has been deemed to be excessive, and this patch changes the meaning of
--force-multiple to be a “stronger” force, and not require both.

So, to skip the prompts:
- single instance reinstallation requires either --force or
  --force-multiple
- multiple instance reinstallation requires --force-multiple

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Currently, if a job execution raises a Ganeti-specific error (i.e.
subclass of GenericError), then we encode it as (error class, [error
args]). This matches the RAPI documentation.

However, if we get a non-Ganeti error, then we encode it as simply
str(err), a single string. This means that the opresult field is not
according to the RAPI docs, and thus it's hard to reliably parse the
job results.

This patch changes the encoding of a failed job (via failure) to always
be an OpExecError, so that we always encode it properly. For the command
line interface, the behaviour is the same, as any non-Ganeti errors get
re-encoded as OpExecError anyway. For the RAPI clients, it only means
that we always present the same type for results. The actual error value
is the same, since the err.args is either way str(original_error);
compare the original (doesn't contain the ValueError):

  "opresult": [
    "invalid literal for int(): aa"
  ],

with:

  "opresult": [
    [
      "OpExecError",
      [
        "invalid literal for int(): aa"
      ]
    ]
  ],

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This can be used from shell-scripts to quickly check the status of the
master node, before launching a series of jobs (and handling the failure
of the jobs due to masterd other issues).

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Since we don't support upgrades from 1.2.4 without restarting the
instance, the 'not restarted since 1.2.5' check/error is
wrong/misleading.

Since the live migration works anyway without the links (it recreates
them during the disk reconfiguration anyway), we remove the check and we
transform it into a warning (to the node daemon log only,
unfortunately).

For 2.3, we'll need to change the symlink creation from instance start
time to disk activation time (but that requires more RPC changes).

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

During a discussion in July 2010 it was decided that we'll stabilize on /2. See
message ID <20100716180012.GA9423@google.com> for reference.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

A lot of assertions are used in Ganeti's code. Some unittests even check
whether AssertionError is raised in some cases. Explicitely ensuring
assertions are evaluated makes sure those tests don't fail and
assertions are checked.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: David Knowles <dknowles@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

By changing it to a normal parameter, which must be a sequence, we can
start using keyword parameters.

Before this patch all arguments to “AddTask(self, *args)” were passed as
arguments to the worker's “RunTask” method. Priorities, which should be
optional and will be implemented in a future patch, must be passed as a keyword
parameter. This means “*args” can no longer be used as one can't combine *args
and keyword parameters in a clean way:

>>> def f(name=None, *args):
...   print "%r, %r" % (args, name)
...
>>> f("p1", "p2", "p3", name="thename")
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
 TypeError: f() got multiple values for keyword argument 'name'

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Document that it should only be called from within RunTask and
add an assertion for this. This means we can no longer use a
method on the pool and hence remove WorkerPool.ShouldWorkerTerminate.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>