Synnefo

New management command for creating a network

Create a management command for creating networks. Also remove
the initial_data.json, since it is currently not necessary.

Implement IP management

Delegate IP management to synnefo, in order to be able to allocate IP
addresses accross multiple Ganeti backends. This is achieved by creating a
Pool of IPs for each Network, in the form of a bitarray, which is stored
in the DB as a base64 string....

Filter deleted entries when changes-since is used

Modify list_networks and list_servers to filter deleted entries when
if-modified-since HTTP header is used, because deleted entries can be
updated after deletion through the reconciliation mechanism.

Encrypt Backend password

Use cipher to encrypt the passwords of the Ganeti backends in the DB.
Encryption/decryption is based on a configurable key, defined by the
ENCRYPTION_KEY setting. After modifying this setting, synnefo will be
unable to decrypt already stored passwords, and passwords must be...

Add dirty bit to NetworkInterface

Extend NetworkInterface model with a dirty bit, indicating whether
the index of the NIC is consistent with the one in Ganeti. This flag is
set when deleting a NIC, and is switched off after processing the
notification from Ganeti. Removing a NIC with the dirty bit on is not...