Synnefo

Merge branch 'devel-0.12' into ui-0.11

Implement basic_nack and basic_reject AMQP methods

Basic_nack method is not support by puka. We are implementing
basic_nack as basic_ack since they have the same effect when
multiple and requeue options are not used.

Detect and handle connection problems in amqp_puka

Use the TCP keepalive feature in amqp_puka in order to detect connection
errors to the RabbitMQ broker, and retry to a different one. Also setup
the keepalive parameters to relative small values, to detect failures...

Various fixes about logging

Fix logging from snf-manage commands. Modify snf-manage implementation
in order to setup the loggers for all snf-manage commands. Configuration
is based on SNF_MANAGE_LOGGING_SETUP setting from snf-common or on
basicConfig if that setting is missing....

Merge branch 'devel-0.11'

Merge branch 'devel-0.11' into ui-0.11

Conflicts:
snf-cyclades-app/synnefo/db/models.py
snf-cyclades-app/synnefo/logic/backend.py
snf-cyclades-app/synnefo/ui/static/snf/js/models.js

Fix bug in amqp_puka

Make AMQPConnectionError an exception

Merge branch 'devel-0.11' into ui-0.11

Conflicts:
snf-common/synnefo/lib/astakos.py
snf-cyclades-app/synnefo/ui/static/snf/js/models.js

Fix bug in http connection pool

Do not reset connetion _pool attribute, since it is not (yet?)
initialized when getting the object from the pool.

port pooled psycopg2 to new pool api

Enhance pooling API, implementation, and tests

- Verify objects (new and old) with a hook _pool_verify.
Discard objects from the pool that fail verification.
A newly created object failing verification is fatal.

- Remove all hooks from the pool set access critical section....

Move pooling psycopg2 wrapper to synnefo.lib.db

Move pooling psycopg2 wrapper to synnefo.lib.db,
please see commit e83ed1fb8fb4d0d19c2d3f86152fde60b3cadfd9 for all the
details on how to use the pooling wrapper for psycopg2.

simple http_request objects over connection pools

Make pool more robust on obj creation failure

Make ObjectPool handle failures during object creation more robustly,
and release the pool semaphore.

Rename ObjectPool methods to pool_{put(), get()}

Support timeout in ObjectPool.get(), fix tests

Support optional timeout argument in ObjectPool.get(),
if supported by the underlying Semaphore implementation.

Implement command-line argument for ObjectPool unit tests to run
inside gevent monkey-patched environment.

Add ObjectPool class in synnefo.lib

Add ObjectPool class in synnefo.lib.
The ObjectPool class is an abstract pool of objects,
based on Semaphore locks, as provided by the threading
package.

Tested to work with a gevent-monkey-patched threading package.
Uncomment the relevant lines in pool/tests.py to test with greenlet...

Implement Singleton pattern

Implement Singleton pattern inside synnefo.lib.singleton.

Whenever a class inherits from ArgBasedSingleton,
attempts to call the class do not always create a new
class instance, but return pre-existing, already made objects.
...

Merge branch 'simplequotas' into queues+minor_net

Fix authenticate

Refactor AMQP client

Minor fixes

Client for interaction with a RabbitMQ broker

Introduce a client implementing connection and communication with a RabbitMQ
broker.

This client silently handles connection failures an tries to connect to a
different node. Also uses publisher-confirms to guarantee delivery to the...

Provide a fallback token to user library.

RemoteAddr middleware

reusable middleware that sets the REMOTE_ADDR meta in request, if not
already set.

Common synnefo lib

Includes the following helpers to be used by synnefo django apps

- logging config initialization middlware
- astakos authentication helpers
- parse_http_date compat helper
- rabbitmq client using pika