def __init__(self, core):
Bcfg2.Server.Plugin.Plugin.__init__(self, core)
Bcfg2.Server.Plugin.ClientRunHooks.__init__(self)
Bcfg2.Server.Plugin.Connector.__init__(self)
try:
key_id = self.core.setup.cfp.get("awstags", "access_key_id")
secret_key = self.core.setup.cfp.get("awstags",
"secret_access_key")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
err = sys.exc_info()[1]
raise Bcfg2.Server.Plugin.PluginInitError(
"AWSTags is not configured in bcfg2.conf: %s" % err)
self.debug_log("%s: Connecting to EC2" % self.name)
self._ec2 = connect_ec2(aws_access_key_id=key_id,
aws_secret_access_key=secret_key)
self._tagcache = Cache()
try:
self._keep_cache = self.core.setup.cfp.getboolean(
"awstags", "cache")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
self._keep_cache = True
self.config = PatternFile(os.path.join(self.data, 'config.xml'),
core=core)
def __init__(self, core):
Bcfg2.Server.Plugin.Plugin.__init__(self, core)
Bcfg2.Server.Plugin.ClientRunHooks.__init__(self)
Bcfg2.Server.Plugin.Connector.__init__(self)
try:
key_id = self.core.setup.cfp.get("awstags", "access_key_id")
secret_key = self.core.setup.cfp.get("awstags",
"secret_access_key")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
err = sys.exc_info()[1]
raise Bcfg2.Server.Plugin.PluginInitError(
"AWSTags is not configured in bcfg2.conf: %s" % err)
self.debug_log("%s: Connecting to EC2" % self.name)
self._ec2 = connect_ec2(aws_access_key_id=key_id,
aws_secret_access_key=secret_key)
self._tagcache = Cache()
try:
self._keep_cache = self.core.setup.cfp.getboolean("awstags",
"cache")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
self._keep_cache = True
self.config = PatternFile(os.path.join(self.data, 'config.xml'),
core=core)
class AWSTags(Bcfg2.Server.Plugin.Plugin,
Bcfg2.Server.Plugin.ClientRunHooks,
Bcfg2.Server.Plugin.Connector):
""" Query tags from AWS via boto, optionally setting group membership """
__rmi__ = Bcfg2.Server.Plugin.Plugin.__rmi__ + ['expire_cache']
def __init__(self, core):
Bcfg2.Server.Plugin.Plugin.__init__(self, core)
Bcfg2.Server.Plugin.ClientRunHooks.__init__(self)
Bcfg2.Server.Plugin.Connector.__init__(self)
try:
key_id = self.core.setup.cfp.get("awstags", "access_key_id")
secret_key = self.core.setup.cfp.get("awstags",
"secret_access_key")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
err = sys.exc_info()[1]
raise Bcfg2.Server.Plugin.PluginInitError(
"AWSTags is not configured in bcfg2.conf: %s" % err)
self.debug_log("%s: Connecting to EC2" % self.name)
self._ec2 = connect_ec2(aws_access_key_id=key_id,
aws_secret_access_key=secret_key)
self._tagcache = Cache()
try:
self._keep_cache = self.core.setup.cfp.getboolean("awstags",
"cache")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
self._keep_cache = True
self.config = PatternFile(os.path.join(self.data, 'config.xml'),
core=core)
def _load_instance(self, hostname):
""" Load an instance from EC2 whose private DNS name matches
the given hostname """
self.debug_log("AWSTags: Loading instance with private-dns-name=%s" %
hostname)
filters = {'private-dns-name': hostname}
reservations = self._ec2.get_all_instances(filters=filters)
if reservations:
res = reservations[0]
if res.instances:
return res.instances[0]
raise NoInstanceFound(
"AWSTags: No instance found with private-dns-name=%s" %
hostname)
def _get_tags_from_ec2(self, hostname):
""" Get tags for the given host from EC2. This does not use
the local caching layer. """
self.debug_log("AWSTags: Getting tags for %s from AWS" %
hostname)
try:
return self._load_instance(hostname).tags
except NoInstanceFound:
self.debug_log(sys.exc_info()[1])
return dict()
def get_tags(self, metadata):
""" Get tags for the given host. This caches the tags locally
if 'cache' in the ``[awstags]`` section of ``bcfg2.conf`` is
true. """
if not self._keep_cache:
return self._get_tags_from_ec2(metadata)
if metadata.hostname not in self._tagcache:
self._tagcache[metadata.hostname] = \
self._get_tags_from_ec2(metadata.hostname)
return self._tagcache[metadata.hostname]
def expire_cache(self, key=None):
""" Expire the cache for one host, or for all hosts. This is
exposed as an XML-RPC RMI. """
self._tagcache.expire(key=key)
def start_client_run(self, metadata):
self.expire_cache(key=metadata.hostname)
def get_additional_data(self, metadata):
return self.get_tags(metadata)
def get_additional_groups(self, metadata):
return self.config.get_groups(self.get_tags(metadata))
class AWSTags(Bcfg2.Server.Plugin.Plugin, Bcfg2.Server.Plugin.ClientRunHooks,
Bcfg2.Server.Plugin.Connector):
""" Query tags from AWS via boto, optionally setting group membership """
__rmi__ = Bcfg2.Server.Plugin.Plugin.__rmi__ + ['expire_cache']
def __init__(self, core):
Bcfg2.Server.Plugin.Plugin.__init__(self, core)
Bcfg2.Server.Plugin.ClientRunHooks.__init__(self)
Bcfg2.Server.Plugin.Connector.__init__(self)
try:
key_id = self.core.setup.cfp.get("awstags", "access_key_id")
secret_key = self.core.setup.cfp.get("awstags",
"secret_access_key")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
err = sys.exc_info()[1]
raise Bcfg2.Server.Plugin.PluginInitError(
"AWSTags is not configured in bcfg2.conf: %s" % err)
self.debug_log("%s: Connecting to EC2" % self.name)
self._ec2 = connect_ec2(aws_access_key_id=key_id,
aws_secret_access_key=secret_key)
self._tagcache = Cache()
try:
self._keep_cache = self.core.setup.cfp.getboolean(
"awstags", "cache")
except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
self._keep_cache = True
self.config = PatternFile(os.path.join(self.data, 'config.xml'),
core=core)
def _load_instance(self, hostname):
""" Load an instance from EC2 whose private DNS name matches
the given hostname """
self.debug_log("AWSTags: Loading instance with private-dns-name=%s" %
hostname)
filters = {'private-dns-name': hostname}
reservations = self._ec2.get_all_instances(filters=filters)
if reservations:
res = reservations[0]
if res.instances:
return res.instances[0]
raise NoInstanceFound(
"AWSTags: No instance found with private-dns-name=%s" % hostname)
def _get_tags_from_ec2(self, hostname):
""" Get tags for the given host from EC2. This does not use
the local caching layer. """
self.debug_log("AWSTags: Getting tags for %s from AWS" % hostname)
try:
return self._load_instance(hostname).tags
except NoInstanceFound:
self.debug_log(sys.exc_info()[1])
return dict()
def get_tags(self, metadata):
""" Get tags for the given host. This caches the tags locally
if 'cache' in the ``[awstags]`` section of ``bcfg2.conf`` is
true. """
if not self._keep_cache:
return self._get_tags_from_ec2(metadata)
if metadata.hostname not in self._tagcache:
self._tagcache[metadata.hostname] = \
self._get_tags_from_ec2(metadata.hostname)
return self._tagcache[metadata.hostname]
def expire_cache(self, key=None):
""" Expire the cache for one host, or for all hosts. This is
exposed as an XML-RPC RMI. """
self._tagcache.expire(key=key)
def start_client_run(self, metadata):
self.expire_cache(key=metadata.hostname)
if self.core.metadata_cache_mode == 'aggressive':
self.logger.warning("AWSTags is incompatible with aggressive "
"client metadata caching, try 'cautious' "
"or 'initial'")
self.core.metadata_cache.expire(metadata.hostname)
def get_additional_data(self, metadata):
return self.get_tags(metadata)
def get_additional_groups(self, metadata):
return self.config.get_groups(self.get_tags(metadata))
def expire(self, key=None):
self.rpc_q.publish(self.method, args=[key])
Cache.expire(self, key=key)
def __init__(self, *args, **kwargs):
self.rpc_q = kwargs.pop("queue")
Bcfg2.Server.Plugin.Debuggable.__init__(self)
Cache.__init__(self, *args, **kwargs)
