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digital_ocean.py enhancements

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* Always refresh droplet information (versus getting it from cache) for
  --list, --host, --droplets, and --all.   All the DigitalOcean calls are
  pretty fast and without this change, inventory was often stale/incorrect.
  For example, previously if you destroyed a droplet, the inventory
  script would still find it and attempt to act on it.

* Added --force-cache option

* Added some option shortcuts -d, -r

* Added more value sanitization
This commit is contained in:
Evan Wies 2013-07-02 15:49:43 -04:00
parent 25aaee4c38
commit 3f6bc3f664
1 changed files with 41 additions and 9 deletions
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42
plugins/inventory/digital_ocean.py
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@ -14,6 +14,12 @@ location is /tmp/ansible-digital_ocean.cache).
The --pretty (-p) option pretty-prints the output for better human readability.
----
Although the cache stores all the information received from DigitalOcean,
the cache is not used for current droplet information (in --list, --host,
--all, and --droplets). This is so that accurate droplet information is always
found. You can force this script to use the cache with --force-cache.
----
Configuration is read from `digital_ocean.ini`, then from environment variables,
then and command-line arguments.
@ -178,12 +184,21 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
self.cache_filename = self.cache_path + "/ansible-digital_ocean.cache"
self.cache_refreshed = False
if self.args.refresh_cache or not self.is_cache_valid():
if not self.args.force_cache and self.args.refresh_cache or not self.is_cache_valid():
self.load_all_data_from_digital_ocean()
else:
self.load_from_cache()
if len(self.data) == 0:
if self.args.force_cache:
print '''Cache is empty and --force-cache was specified'''
sys.exit(-1)
self.load_all_data_from_digital_ocean()
else:
# We always get fresh droplets for --list, --host, --all, and --droplets
# unless --force-cache is specified
if not self.args.force_cache and (
self.args.list or self.args.host or self.args.all or self.args.droplets):
self.load_droplets_from_digital_ocean()
# Pick the json_data to print based on the CLI command
if self.args.droplets: json_data = { 'droplets': self.data['droplets'] }
@ -242,7 +257,7 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
parser.add_argument('--host', action='store', help='Get all Ansible inventory variables about a specific Droplet')
parser.add_argument('--all', action='store_true', help='List all DigitalOcean information as JSON')
parser.add_argument('--droplets', action='store_true', help='List Droplets as JSON')
parser.add_argument('--droplets','-d', action='store_true', help='List Droplets as JSON')
parser.add_argument('--regions', action='store_true', help='List Regions as JSON')
parser.add_argument('--images', action='store_true', help='List Images as JSON')
parser.add_argument('--sizes', action='store_true', help='List Sizes as JSON')
@ -253,7 +268,8 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
parser.add_argument('--cache-path', action='store', help='Path to the cache files (default: .)')
parser.add_argument('--cache-max_age', action='store', help='Maximum age of the cached items (default: 0)')
parser.add_argument('--refresh-cache', action='store_true', default=False, help='Force refresh of cache by making API requests to DigitalOcean (default: False - use cache files)')
parser.add_argument('--force-cache', action='store_true', default=False, help='Only use data from the cache')
parser.add_argument('--refresh-cache','-r', action='store_true', default=False, help='Force refresh of cache by making API requests to DigitalOcean (default: False - use cache files)')
parser.add_argument('--env','-e', action='store_true', help='Display DO_CLIENT_ID and DO_API_KEY')
parser.add_argument('--client-id','-c', action='store', help='DigitalOcean Client ID')
@ -266,6 +282,11 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
if self.args.cache_path: self.cache_path = self.args.cache_path
if self.args.cache_max_age: self.cache_max_age = self.args.cache_max_age
# Make --list default if none of the other commands are specified
if (not self.args.droplets and not self.args.regions and not self.args.images and
not self.args.sizes and not self.args.ssh_keys and not self.args.domains and
not self.args.all and not self.args.host):
self.args.list = True
###########################################################################
@ -296,11 +317,21 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
self.write_to_cache()
def load_droplets_from_digital_ocean(self):
''' Use dopy to get droplet information from DigitalOcean and save data in cache files '''
manager = DoManager( self.client_id, self.api_key )
self.data['droplets'] = self.sanitize_list( manager.all_active_droplets() )
self.index['host_to_droplet'] = self.build_index( self.data['droplets'], 'ip_address', 'id', False )
self.build_inventory()
self.write_to_cache()
def build_index(self, source_seq, key_from, key_to, use_slug=True):
dest_dict = {}
for item in source_seq:
name = (use_slug and item.has_key('slug')) and item['slug'] or item[key_to]
dest_dict[item[key_from]] = name
key = item[key_from]
dest_dict[key] = name
return dest_dict
@ -338,6 +369,7 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
if not host in self.index['host_to_droplet']:
# try updating cache
if not self.args.force_cache:
self.load_all_data_from_digital_ocean()
if not host in self.index['host_to_droplet']:
# host might not exist anymore
@ -347,7 +379,7 @@ or environment variables (DO_CLIENT_ID and DO_API_KEY)'''
if self.cache_refreshed:
for drop in self.data['droplets']:
if drop['ip_address'] == host:
droplet = drop
droplet = self.sanitize_dict( drop )
break
else:
# Cache wasn't refreshed this run, so hit DigitalOcean API