cyclades: Do not delete networks with floating IPs
Forbid network deletion in case the network has allocated floating IPs,no matter whether they are used by instances or not. Update'allocate_floating_ip' API method, to take exclusive lock on networkbefore reserving a floating IP, to avoid race condition between deleting...
cyclades: Move common code to seperate function
Move common between API method and management command for creating aserver to a separate function.
Move cloud faults to 'snf_django.lib.api.faults'
Gather all faults from all synnefo projects into common'snf_django.lib.api.faults'.
Move UserCache from cyclades.common to lib.astakos
Move UserCache from synnefo.management.common to synnefo.lib.astakos.Also, update ListCommand with 'astakos_url' and 'astakos_token' classattributes, which must be declared only when 'user_uuid_field' is used.
snf-manage: Accept Ganeti server/network names
Make management commands relevant with servers and networks to acceptas arguments their Ganeti names, besides their database ID.
For example if BACKEND_PREFIX_ID='snf-', they following two commands areboth valid:...
Move common code for mngmt commands to webproject
Move cyclades functions that are useful for all managament commands, likepprint_table or parse_filters, to snf-webproject.
Fix bugs in UserCache
Fix an infinite loop bug in UserCache.fetch_names(), and correct the*-list commands to only call fetch_names(), when invoked with the--displayname option.
Fix print alignment for snf-mange cmds
pprint_table misbehaved when handling unicode 'strings', breaking thealignment of the output of several snf-manage cmds, and raising aunicode encode exception, when printing non 'ascii' unicode strings.
Calculate correctly the max column width by applying len() directly to...
Improve server-list usability
Refs #3375
Improve perf for snf-manage cyclades commands
When the snf-manage {server, network}-list commands are invoked with the--displayname option, batch the UUID-to-displayname requests to astakos,instead of issuing a request for each (unique) UUID.
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