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

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

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

This patch moves the FormatAddress helper function from daemon.py to
netutils.py. This enables its use in http.client as well as in
rapi.client. Furthermore this adds functionality to format IPv6
addresses according to RFC 3986.

It is required for use of literal IPv6 addresses in URLs in pycurl.
For some reason it worked also without the bracketing ("["<address>"]"),
but we do not want to rely on that.

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

This patch enables IPv6 name resolution by using socket.getaddrinfo
instead of socket.gethostbyname_ex.

It renames the HostInfo class to Hostname and unifies its use throughout
the code. This is achieved by using static calls where no object is
needed and removes some obsolete code.

For now, we just resolve to IPv4 addresses, but this will change once it
is needed.

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

In light of the upcoming IPv6 support, this patch enables the rpc.Client
to always use a node's address to connect to it. This is necessary as we
do not want to rely on name resolution to connect to the correct IP
address on a dual-stack machine.

Signed-off-by: Manuel Franceschini <livewire@google.com>
Reviewed-by: Guido Trotter <ultrotter@google.com>

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: 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>

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: 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>

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>

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>

Since the RAPI QA suite doesn't seem to offer easy testing of failed
creations, I didn't add this to the QA. Pointers on how to do it are
welcome.

The patch also changes the 'os' argument to be required, since that is
how the LU expects it, and without it we just fail later instead of
directly at submission time.

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

See the discussion on the previous patch about this. Basically unless we
want to a add a new 'feature' marking for the live migration parameter,
there is no simple way to handle this nicely in the client.

Given that the client was/is marked as experimental, this patch simply
replaces live with mode. This means that this client won't work with 2.1
clusters…

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

Instead of using our custom HTTP client, using PycURL's multi
interface allows us to get rid of the HTTP client threadpool.
The majority of the code is still in the ganeti.http.client
module.

A simple per-thread HTTP client pool gives cURL a chance to
cache and retain as much information as possible (e.g. SSL certs).
Unused HTTP clients (e.g. due to removed nodes) are deleted after
25 requests going through the pool.

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

This patch adds lock names to SharedLocks and LockSets, that can be used
later for displaying the actual locks being held/used in places where we
only have the lock, and not the entire context of the locking operation.

Since I realized that the production code doesn't call LockSet with the
proper members= syntax, but directly as positional parameters, I've
converted this (and the arguments to GlobalLockManager) into positional
arguments.

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

Also adds a generic ParseError exception.

Signed-off-by: Balazs Lecz <leczb@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

This new opcode and gnt-debug sub-command test some aspects of the
job queue, including the status of a job. The bug fixed in commit
2034c70d was identified using this test. A future patch will
run this test automatically from the QA scripts.

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

This patch converts hv_kvm to use utils.ShellWriter for writing
the network script. It also adds a few unittests (the first
for any hypervisor modules).

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

Also add unittest.

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

Usually our tests are named “Test…”.

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

By splitting the _WaitForJobChangesHelper class into multiple smaller
classes, we gain in several places:

- Simpler code, less interaction between functions and variables
- Easy to unittest (close to 100% coverage)
- Waiting for job changes has no direct knowledge of queue anymore (it
  doesn't references queue functions anymore, especially not private ones)
- Activate inotify only if there was no change at the beginning (and
  checking again right away to avoid race conditions)

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

Commit 8a47b447 implemented instance creation in the RAPI client,
but it left out support for the old instance creation request format.
This patch now implements the old format as good as possible. This
will only be used when talking to clusters before Ganeti 2.1.3.

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

These constants were added in commit bd061c35, but the parsing code
was not updated. This also fixes a bug where a NIC's MAC address
wasn't used.

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

Use RFC 5737 IP addresses and RFC 2606 domain names in all
unittests, docs, qa and docstrings.

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

By exposing mcpu's _Feedback function (now renamed to “Log”) to LU's,
methods like ExpandNames can also write to the job execution log.

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

Just calling utils.SafeEncode on the log message failed when it
wasn't of the type ELOG_MESSAGE and not a string. Now non-message
log entries are formatted using repr().

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

This patch series basically adds a new parameter 'family' to the constructors
of daemon.AsyncUDPSocket and confd.client.ConfdUDPClient. This enables the
users of these two classes to support IPv6.

In ganeti-confd.ConfdAsyncUDPClient a method to check the address families of
all peers is added.

Furthermore it adds unittests for the added functionality.

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

This patch moves network utility functions to a dedicated module.

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

Add unit tests to check the function of _CheckIAllocatorOrNode

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

Node daemon prints a lot of warnings if --no-mlock option is not specified and
ctypes module is not present.

With the following patch the warning is printed only at noded startup.

Signed-off-by: Luca Bigliardi <shammash@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

Signed-off-by: Balazs Lecz <leczb@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>