I've investigated more and it seems that .DELETE_ON_ERROR not working
is a bug/regression in some versions of make; testing with make 3.82
from Debian experimental makes this special target work as
expected. Also, make 3.81 works on trivial Makefiles, but not on our
complex one.

In the meantime, let's improve the fix for the building of man pages:
make the removal implicit, instead of explicit, via the use of 'trap'
on EXIT. I just hope this behaves consistently across all bash
versions :)

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

This make it possible to load from an Ialloc file

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: Iustin Pop <iustin@google.com>

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

This makes it possible to reuse that function when we want to use IAlloc
as a data source backend

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: Iustin Pop <iustin@google.com>

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: Michael Hanselmann <hansmi@google.com>

Because .DELETE_ON_ERROR doesn't work consistently (works when the
target we're talking about is a final target, but not for
intermediates), I missed a lot of man checks.

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

This helper abstract away all the unlines and unwords call you've to do
after you got a formatTable back.

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

This fixes the prop_Node_rMem test, which cares about memory only;
otherwise we could fail due to other problems (e.g. not enough disk).

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

This is not perfect, as the override applies identical target test
values to both the 'fast' and 'slow' tests (making the slow tests take
a long time), but it allows a quick override for manual runs.

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

These just test that add/remove are idempotent. This is not perfect,
as we use unsorted lists for some values (instead of sets), so when
using non-empty nodes this would break (but for empty nodes, a
1-element list is sorted, so it's fine).

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

This makes balancing use the new metric.

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

This simply tracks the instance-used spindles (using hard-coded '1'
per instance), and additionally prevents additions in soft-mode when
we go over the limit.

Note: there's an assymetry between addSec and removeSec (basically
secondaries should only exist with DTDrbd8, so the check for uses_disk
is superflous), will be cleaned up later.

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

Since we use the functions always module-qualified, let's drop the
`instance` prefix and use a shorter one.

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

This patch adds two helper functions and uses them for a somewhat
simplified logic in the add/remove pri/sec node functions.

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

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

If missing, we'll default to 1 spindle.

This also updates the text file format with the ipolicy, which was
forgotten.

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

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

This adds the spindleCount, hiSpindles and instSpindles attributes.

The spindleCount is equivalent to spindle_count on the ganeti side (a
node parameter). hiSpindles is the maximum instance-used spindles, and
instSpindles will be used to track spindles as used by instances (in
later patches).

The patch also reads spindleCount from the live backends. The text and
simu backends currently set it to 1, hard-coded.

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

Just the usual data/type declarations, read/save in the text backend,
etc. Also does a bit of unit-test cleanup (the way we build
ipolicies).

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

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

Also rename some functions as they don't reflect their actions anymore

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

Adds an assert and fixes a typo.

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

It prints the information which hbal prints in a nice formatted manner and of
course without doing any actions. An example output looks like this:

$ hinfo -m xen.example.com
Loaded 4 nodes, 2 instances
Cluster has 1 node group(s)
Cluster coefficients:
   Field                Value Weight
   free_mem_cv     0.00195342  x1.00
   free_disk_cv    0.00000000  x1.00
   n1_cnt          0.00000000  x1.00
   reserved_mem_cv 0.00195342  x1.00
   offline_all_cnt 0.00000000  x4.00
   offline_pri_cnt 0.00000000 x16.00
   vcpu_ratio_cv   0.12500000  x1.00
   cpu_load_cv     0.50000000  x1.00
   mem_load_cv     0.50000000  x1.00
   disk_load_cv    0.00000000  x1.00
   net_load_cv     0.50000000  x1.00
   pri_tags_score  0.00000000  x2.00
Cluster score: 1.62890685

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

This checks to see if any man output has [em] in it, as that will not
be correctly show in ASCII. Unfortunately the check will depend on
whether the other man check is done, but I didn't want to introduce
yet another short script for this (can be done, no issue).

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

I've seen that man pages, as generated by the version of pandoc we
use, show single dashes in option names instead of double ones (-
versus --). After bringing it up with upstream
(http://groups.google.com/group/pandoc-discuss/browse_thread/thread/9c4589a4001d42f9/95ee8dae8932dc93

),
it seems that this is a known behaviour of pandoc that has been
improved in newer versions.

Until then, let's use correctly double dashes; from the two options in
the above thread, I chose to use \-- as that doesn't change the actual
output; whereas ``--nodes`` make this a code block, which will look
differently from a short option and could change how the output looks
(e.g. when in a bold span).

Additionally, I've removed two cases where unescape em was explicitly
intended, as that makes automated checking harder and we can use other
formatting.

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>

Since we run the post-hooks explicitly in the Exec() function (via
_RunPostHook) after we removed the target node from the config, we
will get a:

  WARNING Node 'node2', which is about to be removed, was not found in
  the list of all nodes

in the logs every time we remove a node. The patch just removes the
warning, as actually invalid configurations (for the pre hook) will be
checked correctly elsewhere.

Additionally, the docstrings for BuildHooksEnv and BuildHooksNodes are
corrected/switched.

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

There's no need to verify the field definitions on every query. They are
static for all intents and purposes anyway and verified at module load
time.

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

This splits even more parts of the request handling code into a separate
class. Doing so allows us to reuse this part of the code for tests (e.g.
mocks). Unlike before now the error handling can also be reused.

The patch became a bit more convoluted than intended, but the end result
is easier to read than the original code.

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

Like before this patch moves more functionality from the actual server
class into a separate handler class. At the same time the function is
changed to return both content-type and body instead of relying on a
class attribute.

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: René Nussbaumer <rn@google.com>

Until now HTTP requests were handled in the same class as incoming
connections (http.server.HttpServer). With this change the request
handling is delegated to a separate class which can be re-used in tests
without creating a socket, etc.

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

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

This has been deprecated since Ganeti 2.4 and hasn't been used by
Ganeti's code since. I'm not aware of any external users.

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: René Nussbaumer <rn@google.com>

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

In at least two cases "%s" is replaced with str(), too.

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