Add DST_NODE_OPT to cli.py to use for directly specifying the target node
during migration/failover.

gnt-instance failover/migrate also get passed an iallocator option.

gnt-node failover/migrate get only a target_node option.

Signed-off-by: Apollon Oikonomopoulos <apollon@noc.grnet.gr>
Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

This patch introduces core file storage support, consisting of the following:

A configure-time switch for enabling/disabling shared file storage
support and controlling the shared file storage location:
--with-shared-file-storage-dir=.  Shared file storage configuration is then
available as _autoconf.ENABLE_SHARED_FILE_STORAGE and
_autoconf.SHARED_FILE_STORAGE_DIR and there is a cluster-wide ssconf
key named "shared_file_storage_dir" for changing the file location.

A new disk template named "sharedfile" (DT_SHARED_FILE), using
ganeti.bdev.FileStorage.

Auxiliary functions in lib/config.py to handle shared file storage.

Signed-off-by: Apollon Oikonomopoulos <apollon@noc.grnet.gr>
[iustin@google.com: small style fixes]
Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

This isn't only used during cluster merge.

Signed-off-by: Stephen Shirley <diamond@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

And also enable verbose display via the, well, verbose option. Man
page and tests are updated, and the formatting is moved from 4 if
statements to a data structure.

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

This is needed so cluster-merge can add nodes from other clusters.

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

This adds a message and nice handling of ^C, especially useful for
``gnt-job watch``.

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

It's passed in by most users (daemons, CLI scripts) and for the others
(burnin, watcher) it certainly doesn't hurt, especially when using
syslog.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: René Nussbaumer <rn@google.com>

Also replace hardcoded “xenvg” with constant.

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

This patch renames QRFS_* to RS_* fields so they can be used in other
places (i.e. LUs) without confusion, as this was initially meant for
query operations.

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

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

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

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: René Nussbaumer <rn@google.com>

This function is useful for other cli-tools who need to display
a dict based parameter field.

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Adeodato Simo <dato@google.com>

Since the --master-netdev option is now used both at cluster init and at
cluster modify time, it cannot have a default value of DEFAULT_BRIDGE
(xen-br0) anymore. As such at cluster init we make the initialization
explicit if another value hasn't been passed. This fixes gnt-cluster
modify changing the master_netdev to xen-br0 if called without that
argument.

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

The hooks is due to me not checking the recent patch from David, and
the cli.py change is due to the utils.py split.

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

Signed-off-by: Adeodato Simo <dato@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

This allows “gnt-node list” to show the difference between modes marked
offline and nodes with e.g. RPC errors (“(nodata)”). node1 is the
master, node2's node daemon crashed and node3 is marked offline:

$ gnt-node list -o name,offline,dtotal,dfree
Node              Offline    DTotal     DFree
node1.example.com N            1.3T      1.3T
node2.example.com N        (nodata)  (nodata)
node3.example.com Y       (offline) (offline)

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

This should reduce the amount of damage in case of accidential copy &
paste.

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

Point out that jobs already submitted continue to run.

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

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

A new function for formatting the query results is added,
``FormatTable``. This was determined to be easier and safer than
modifying the existing ``GenerateTable`` function while keeping
backwards compatibility for code not yet converted. The new code makes
use of the enhanced information provided by query2.

Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: René Nussbaumer <rn@google.com>

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This can be set at group creation time and via OpSetGroupParams. The default
is "preferred", and existing node groups from previous Ganeti version will
get the attribute set to this value.

Signed-off-by: Adeodato Simo <dato@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

This implements `gnt-group list`.

Signed-off-by: Adeodato Simo <dato@google.com>
Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

The "I always wanted to do this" commit.

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

Changing the volume group is a lot less frequent than acting on a node
group. As such we drop the "-g" shortcut and require the long option to
be passed. In 2.3 the commands which used to accept the volume group as
"-g" won't have any node group option, so no confusion will arise. Later
on we may pass "-g" as the initial node group name to gnt-cluster init,
although that's not strictly necessary, as modifying it later is always
possible.

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

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

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

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

For consistency with other CLI options.

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

In some cases it can be useful to mark as an instance as started
or stopped while its primary node is offline. With this patch,
a new option, “--ignore-offline”, is introduced to “gnt-instance
start” and “… stop”.

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

This function will also be used in tools/move-instance.

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

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

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

They'll be used for job priorities. Also add an empty line to
gnt-os where it's missing.

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

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

We autocomplete both by nodegroup name and uuid.

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

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