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authorThomas Wiest <twiest@redhat.com>2015-08-21 16:01:33 -0400
committerThomas Wiest <twiest@redhat.com>2015-11-16 16:36:19 -0500
commit6f61581dcc89b33fec2fe3916b0d512378e370ca (patch)
treea5f8a83668afa1dd2deed3537801f4899dccd43a /inventory/aws/hosts
parent56bfd1e0cd39c0cc5b3bd52113e634f3588eb14f (diff)
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updating to the latest ec2.py (and re-patching with our changes).
Diffstat (limited to 'inventory/aws/hosts')
-rw-r--r--inventory/aws/hosts/ec2.ini97
-rwxr-xr-xinventory/aws/hosts/ec2.py645
2 files changed, 680 insertions, 62 deletions
diff --git a/inventory/aws/hosts/ec2.ini b/inventory/aws/hosts/ec2.ini
index eaab0a410..1f503b8cf 100644
--- a/inventory/aws/hosts/ec2.ini
+++ b/inventory/aws/hosts/ec2.ini
@@ -24,24 +24,61 @@ regions_exclude = us-gov-west-1,cn-north-1
# This is the normal destination variable to use. If you are running Ansible
# from outside EC2, then 'public_dns_name' makes the most sense. If you are
# running Ansible from within EC2, then perhaps you want to use the internal
-# address, and should set this to 'private_dns_name'.
+# address, and should set this to 'private_dns_name'. The key of an EC2 tag
+# may optionally be used; however the boto instance variables hold precedence
+# in the event of a collision.
destination_variable = public_dns_name
# For server inside a VPC, using DNS names may not make sense. When an instance
# has 'subnet_id' set, this variable is used. If the subnet is public, setting
# this to 'ip_address' will return the public IP address. For instances in a
# private subnet, this should be set to 'private_ip_address', and Ansible must
-# be run from with EC2.
+# be run from within EC2. The key of an EC2 tag may optionally be used; however
+# the boto instance variables hold precedence in the event of a collision.
+# WARNING: - instances that are in the private vpc, _without_ public ip address
+# will not be listed in the inventory until You set:
+# vpc_destination_variable = 'private_ip_address'
vpc_destination_variable = ip_address
# To tag instances on EC2 with the resource records that point to them from
# Route53, uncomment and set 'route53' to True.
route53 = False
+# To exclude RDS instances from the inventory, uncomment and set to False.
+#rds = False
+
+# To exclude ElastiCache instances from the inventory, uncomment and set to False.
+#elasticache = False
+
# Additionally, you can specify the list of zones to exclude looking up in
# 'route53_excluded_zones' as a comma-separated list.
# route53_excluded_zones = samplezone1.com, samplezone2.com
+# By default, only EC2 instances in the 'running' state are returned. Set
+# 'all_instances' to True to return all instances regardless of state.
+all_instances = False
+
+# By default, only EC2 instances in the 'running' state are returned. Specify
+# EC2 instance states to return as a comma-separated list. This
+# option is overriden when 'all_instances' is True.
+# instance_states = pending, running, shutting-down, terminated, stopping, stopped
+
+# By default, only RDS instances in the 'available' state are returned. Set
+# 'all_rds_instances' to True return all RDS instances regardless of state.
+all_rds_instances = False
+
+# By default, only ElastiCache clusters and nodes in the 'available' state
+# are returned. Set 'all_elasticache_clusters' and/or 'all_elastic_nodes'
+# to True return all ElastiCache clusters and nodes, regardless of state.
+#
+# Note that all_elasticache_nodes only applies to listed clusters. That means
+# if you set all_elastic_clusters to false, no node will be return from
+# unavailable clusters, regardless of the state and to what you set for
+# all_elasticache_nodes.
+all_elasticache_replication_groups = False
+all_elasticache_clusters = False
+all_elasticache_nodes = False
+
# API calls to EC2 are slow. For this reason, we cache the results of an API
# call. Set this to the path you want cache files to be written to. Two files
# will be written to this directory:
@@ -60,3 +97,59 @@ cache_max_age = 300
# destination_variable and vpc_destination_variable.
# destination_format = {0}.{1}.rhcloud.com
# destination_format_tags = Name,environment
+
+# Organize groups into a nested/hierarchy instead of a flat namespace.
+nested_groups = False
+
+# Replace - tags when creating groups to avoid issues with ansible
+replace_dash_in_groups = False
+
+# The EC2 inventory output can become very large. To manage its size,
+# configure which groups should be created.
+group_by_instance_id = True
+group_by_region = True
+group_by_availability_zone = True
+group_by_ami_id = True
+group_by_instance_type = True
+group_by_key_pair = True
+group_by_vpc_id = True
+group_by_security_group = True
+group_by_tag_keys = True
+group_by_tag_none = True
+group_by_route53_names = True
+group_by_rds_engine = True
+group_by_rds_parameter_group = True
+group_by_elasticache_engine = True
+group_by_elasticache_cluster = True
+group_by_elasticache_parameter_group = True
+group_by_elasticache_replication_group = True
+
+# If you only want to include hosts that match a certain regular expression
+# pattern_include = staging-*
+
+# If you want to exclude any hosts that match a certain regular expression
+# pattern_exclude = staging-*
+
+# Instance filters can be used to control which instances are retrieved for
+# inventory. For the full list of possible filters, please read the EC2 API
+# docs: http://docs.aws.amazon.com/AWSEC2/latest/APIReference/ApiReference-query-DescribeInstances.html#query-DescribeInstances-filters
+# Filters are key/value pairs separated by '=', to list multiple filters use
+# a list separated by commas. See examples below.
+
+# Retrieve only instances with (key=value) env=staging tag
+# instance_filters = tag:env=staging
+
+# Retrieve only instances with role=webservers OR role=dbservers tag
+# instance_filters = tag:role=webservers,tag:role=dbservers
+
+# Retrieve only t1.micro instances OR instances with tag env=staging
+# instance_filters = instance-type=t1.micro,tag:env=staging
+
+# You can use wildcards in filter values also. Below will list instances which
+# tag Name value matches webservers1*
+# (ex. webservers15, webservers1a, webservers123 etc)
+# instance_filters = tag:Name=webservers1*
+
+# A boto configuration profile may be used to separate out credentials
+# see http://boto.readthedocs.org/en/latest/boto_config_tut.html
+# boto_profile = some-boto-profile-name
diff --git a/inventory/aws/hosts/ec2.py b/inventory/aws/hosts/ec2.py
index f231ff4c2..8b878cafd 100755
--- a/inventory/aws/hosts/ec2.py
+++ b/inventory/aws/hosts/ec2.py
@@ -22,6 +22,12 @@ you need to define:
export EC2_URL=http://hostname_of_your_cc:port/services/Eucalyptus
+If you're using boto profiles (requires boto>=2.24.0) you can choose a profile
+using the --boto-profile command line argument (e.g. ec2.py --boto-profile prod) or using
+the AWS_PROFILE variable:
+
+ AWS_PROFILE=prod ansible-playbook -i ec2.py myplaybook.yml
+
For more details, see: http://docs.pythonboto.org/en/latest/boto_config_tut.html
When run against a specific host, this script returns the following variables:
@@ -121,8 +127,11 @@ from time import time
import boto
from boto import ec2
from boto import rds
+from boto import elasticache
from boto import route53
-import ConfigParser
+import six
+
+from six.moves import configparser
from collections import defaultdict
try:
@@ -145,9 +154,18 @@ class Ec2Inventory(object):
# Index of hostname (address) to instance ID
self.index = {}
+ # Boto profile to use (if any)
+ self.boto_profile = None
+
# Read settings and parse CLI arguments
- self.read_settings()
self.parse_cli_args()
+ self.read_settings()
+
+ # Make sure that profile_name is not passed at all if not set
+ # as pre 2.24 boto will fall over otherwise
+ if self.boto_profile:
+ if not hasattr(boto.ec2.EC2Connection, 'profile_name'):
+ self.fail_with_error("boto version must be >= 2.24 to use profile")
# Cache
if self.args.refresh_cache:
@@ -166,7 +184,7 @@ class Ec2Inventory(object):
else:
data_to_print = self.json_format_dict(self.inventory, True)
- print data_to_print
+ print(data_to_print)
def is_cache_valid(self):
@@ -184,10 +202,12 @@ class Ec2Inventory(object):
def read_settings(self):
''' Reads the settings from the ec2.ini file '''
-
- config = ConfigParser.SafeConfigParser()
+ if six.PY3:
+ config = configparser.ConfigParser()
+ else:
+ config = configparser.SafeConfigParser()
ec2_default_ini_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'ec2.ini')
- ec2_ini_path = os.environ.get('EC2_INI_PATH', ec2_default_ini_path)
+ ec2_ini_path = os.path.expanduser(os.path.expandvars(os.environ.get('EC2_INI_PATH', ec2_default_ini_path)))
config.read(ec2_ini_path)
# is eucalyptus?
@@ -236,18 +256,72 @@ class Ec2Inventory(object):
if config.has_option('ec2', 'rds'):
self.rds_enabled = config.getboolean('ec2', 'rds')
- # Return all EC2 and RDS instances (if RDS is enabled)
+ # Include ElastiCache instances?
+ self.elasticache_enabled = True
+ if config.has_option('ec2', 'elasticache'):
+ self.elasticache_enabled = config.getboolean('ec2', 'elasticache')
+
+ # Return all EC2 instances?
if config.has_option('ec2', 'all_instances'):
self.all_instances = config.getboolean('ec2', 'all_instances')
else:
self.all_instances = False
+
+ # Instance states to be gathered in inventory. Default is 'running'.
+ # Setting 'all_instances' to 'yes' overrides this option.
+ ec2_valid_instance_states = [
+ 'pending',
+ 'running',
+ 'shutting-down',
+ 'terminated',
+ 'stopping',
+ 'stopped'
+ ]
+ self.ec2_instance_states = []
+ if self.all_instances:
+ self.ec2_instance_states = ec2_valid_instance_states
+ elif config.has_option('ec2', 'instance_states'):
+ for instance_state in config.get('ec2', 'instance_states').split(','):
+ instance_state = instance_state.strip()
+ if instance_state not in ec2_valid_instance_states:
+ continue
+ self.ec2_instance_states.append(instance_state)
+ else:
+ self.ec2_instance_states = ['running']
+
+ # Return all RDS instances? (if RDS is enabled)
if config.has_option('ec2', 'all_rds_instances') and self.rds_enabled:
self.all_rds_instances = config.getboolean('ec2', 'all_rds_instances')
else:
self.all_rds_instances = False
+ # Return all ElastiCache replication groups? (if ElastiCache is enabled)
+ if config.has_option('ec2', 'all_elasticache_replication_groups') and self.elasticache_enabled:
+ self.all_elasticache_replication_groups = config.getboolean('ec2', 'all_elasticache_replication_groups')
+ else:
+ self.all_elasticache_replication_groups = False
+
+ # Return all ElastiCache clusters? (if ElastiCache is enabled)
+ if config.has_option('ec2', 'all_elasticache_clusters') and self.elasticache_enabled:
+ self.all_elasticache_clusters = config.getboolean('ec2', 'all_elasticache_clusters')
+ else:
+ self.all_elasticache_clusters = False
+
+ # Return all ElastiCache nodes? (if ElastiCache is enabled)
+ if config.has_option('ec2', 'all_elasticache_nodes') and self.elasticache_enabled:
+ self.all_elasticache_nodes = config.getboolean('ec2', 'all_elasticache_nodes')
+ else:
+ self.all_elasticache_nodes = False
+
+ # boto configuration profile (prefer CLI argument)
+ self.boto_profile = self.args.boto_profile
+ if config.has_option('ec2', 'boto_profile') and not self.boto_profile:
+ self.boto_profile = config.get('ec2', 'boto_profile')
+
# Cache related
cache_dir = os.path.expanduser(config.get('ec2', 'cache_path'))
+ if self.boto_profile:
+ cache_dir = os.path.join(cache_dir, 'profile_' + self.boto_profile)
if not os.path.exists(cache_dir):
os.makedirs(cache_dir)
@@ -261,6 +335,12 @@ class Ec2Inventory(object):
else:
self.nested_groups = False
+ # Replace dash or not in group names
+ if config.has_option('ec2', 'replace_dash_in_groups'):
+ self.replace_dash_in_groups = config.getboolean('ec2', 'replace_dash_in_groups')
+ else:
+ self.replace_dash_in_groups = True
+
# Configure which groups should be created.
group_by_options = [
'group_by_instance_id',
@@ -276,6 +356,10 @@ class Ec2Inventory(object):
'group_by_route53_names',
'group_by_rds_engine',
'group_by_rds_parameter_group',
+ 'group_by_elasticache_engine',
+ 'group_by_elasticache_cluster',
+ 'group_by_elasticache_parameter_group',
+ 'group_by_elasticache_replication_group',
]
for option in group_by_options:
if config.has_option('ec2', option):
@@ -290,7 +374,7 @@ class Ec2Inventory(object):
self.pattern_include = re.compile(pattern_include)
else:
self.pattern_include = None
- except ConfigParser.NoOptionError, e:
+ except configparser.NoOptionError:
self.pattern_include = None
# Do we need to exclude hosts that match a pattern?
@@ -300,7 +384,7 @@ class Ec2Inventory(object):
self.pattern_exclude = re.compile(pattern_exclude)
else:
self.pattern_exclude = None
- except ConfigParser.NoOptionError, e:
+ except configparser.NoOptionError:
self.pattern_exclude = None
# Instance filters (see boto and EC2 API docs). Ignore invalid filters.
@@ -325,6 +409,8 @@ class Ec2Inventory(object):
help='Get all the variables about a specific instance')
parser.add_argument('--refresh-cache', action='store_true', default=False,
help='Force refresh of cache by making API requests to EC2 (default: False - use cache files)')
+ parser.add_argument('--boto-profile', action='store',
+ help='Use boto profile for connections to EC2')
self.args = parser.parse_args()
@@ -338,30 +424,52 @@ class Ec2Inventory(object):
self.get_instances_by_region(region)
if self.rds_enabled:
self.get_rds_instances_by_region(region)
+ if self.elasticache_enabled:
+ self.get_elasticache_clusters_by_region(region)
+ self.get_elasticache_replication_groups_by_region(region)
self.write_to_cache(self.inventory, self.cache_path_cache)
self.write_to_cache(self.index, self.cache_path_index)
+ def connect(self, region):
+ ''' create connection to api server'''
+ if self.eucalyptus:
+ conn = boto.connect_euca(host=self.eucalyptus_host)
+ conn.APIVersion = '2010-08-31'
+ else:
+ conn = self.connect_to_aws(ec2, region)
+ return conn
+
+ def boto_fix_security_token_in_profile(self, connect_args):
+ ''' monkey patch for boto issue boto/boto#2100 '''
+ profile = 'profile ' + self.boto_profile
+ if boto.config.has_option(profile, 'aws_security_token'):
+ connect_args['security_token'] = boto.config.get(profile, 'aws_security_token')
+ return connect_args
+
+ def connect_to_aws(self, module, region):
+ connect_args = {}
+
+ # only pass the profile name if it's set (as it is not supported by older boto versions)
+ if self.boto_profile:
+ connect_args['profile_name'] = self.boto_profile
+ self.boto_fix_security_token_in_profile(connect_args)
+
+ conn = module.connect_to_region(region, **connect_args)
+ # connect_to_region will fail "silently" by returning None if the region name is wrong or not supported
+ if conn is None:
+ self.fail_with_error("region name: %s likely not supported, or AWS is down. connection to region failed." % region)
+ return conn
def get_instances_by_region(self, region):
''' Makes an AWS EC2 API call to the list of instances in a particular
region '''
try:
- if self.eucalyptus:
- conn = boto.connect_euca(host=self.eucalyptus_host)
- conn.APIVersion = '2010-08-31'
- else:
- conn = ec2.connect_to_region(region)
-
- # connect_to_region will fail "silently" by returning None if the region name is wrong or not supported
- if conn is None:
- print("region name: %s likely not supported, or AWS is down. connection to region failed." % region)
- sys.exit(1)
-
+ conn = self.connect(region)
reservations = []
if self.ec2_instance_filters:
- for filter_key, filter_values in self.ec2_instance_filters.iteritems():
+ for filter_key, filter_values in self.ec2_instance_filters.items():
reservations.extend(conn.get_all_instances(filters = { filter_key : filter_values }))
else:
reservations = conn.get_all_instances()
@@ -370,40 +478,130 @@ class Ec2Inventory(object):
for instance in reservation.instances:
self.add_instance(instance, region)
- except boto.exception.BotoServerError, e:
- if not self.eucalyptus:
- print "Looks like AWS is down again:"
- print e
- sys.exit(1)
+ except boto.exception.BotoServerError as e:
+ if e.error_code == 'AuthFailure':
+ error = self.get_auth_error_message()
+ else:
+ backend = 'Eucalyptus' if self.eucalyptus else 'AWS'
+ error = "Error connecting to %s backend.\n%s" % (backend, e.message)
+ self.fail_with_error(error, 'getting EC2 instances')
def get_rds_instances_by_region(self, region):
''' Makes an AWS API call to the list of RDS instances in a particular
region '''
try:
- conn = rds.connect_to_region(region)
+ conn = self.connect_to_aws(rds, region)
if conn:
instances = conn.get_all_dbinstances()
for instance in instances:
self.add_rds_instance(instance, region)
- except boto.exception.BotoServerError, e:
+ except boto.exception.BotoServerError as e:
+ error = e.reason
+
+ if e.error_code == 'AuthFailure':
+ error = self.get_auth_error_message()
if not e.reason == "Forbidden":
- print "Looks like AWS RDS is down: "
- print e
- sys.exit(1)
+ error = "Looks like AWS RDS is down:\n%s" % e.message
+ self.fail_with_error(error, 'getting RDS instances')
- def get_instance(self, region, instance_id):
- ''' Gets details about a specific instance '''
- if self.eucalyptus:
- conn = boto.connect_euca(self.eucalyptus_host)
- conn.APIVersion = '2010-08-31'
+ def get_elasticache_clusters_by_region(self, region):
+ ''' Makes an AWS API call to the list of ElastiCache clusters (with
+ nodes' info) in a particular region.'''
+
+ # ElastiCache boto module doesn't provide a get_all_intances method,
+ # that's why we need to call describe directly (it would be called by
+ # the shorthand method anyway...)
+ try:
+ conn = elasticache.connect_to_region(region)
+ if conn:
+ # show_cache_node_info = True
+ # because we also want nodes' information
+ response = conn.describe_cache_clusters(None, None, None, True)
+
+ except boto.exception.BotoServerError as e:
+ error = e.reason
+
+ if e.error_code == 'AuthFailure':
+ error = self.get_auth_error_message()
+ if not e.reason == "Forbidden":
+ error = "Looks like AWS ElastiCache is down:\n%s" % e.message
+ self.fail_with_error(error, 'getting ElastiCache clusters')
+
+ try:
+ # Boto also doesn't provide wrapper classes to CacheClusters or
+ # CacheNodes. Because of that wo can't make use of the get_list
+ # method in the AWSQueryConnection. Let's do the work manually
+ clusters = response['DescribeCacheClustersResponse']['DescribeCacheClustersResult']['CacheClusters']
+
+ except KeyError as e:
+ error = "ElastiCache query to AWS failed (unexpected format)."
+ self.fail_with_error(error, 'getting ElastiCache clusters')
+
+ for cluster in clusters:
+ self.add_elasticache_cluster(cluster, region)
+
+ def get_elasticache_replication_groups_by_region(self, region):
+ ''' Makes an AWS API call to the list of ElastiCache replication groups
+ in a particular region.'''
+
+ # ElastiCache boto module doesn't provide a get_all_intances method,
+ # that's why we need to call describe directly (it would be called by
+ # the shorthand method anyway...)
+ try:
+ conn = elasticache.connect_to_region(region)
+ if conn:
+ response = conn.describe_replication_groups()
+
+ except boto.exception.BotoServerError as e:
+ error = e.reason
+
+ if e.error_code == 'AuthFailure':
+ error = self.get_auth_error_message()
+ if not e.reason == "Forbidden":
+ error = "Looks like AWS ElastiCache [Replication Groups] is down:\n%s" % e.message
+ self.fail_with_error(error, 'getting ElastiCache clusters')
+
+ try:
+ # Boto also doesn't provide wrapper classes to ReplicationGroups
+ # Because of that wo can't make use of the get_list method in the
+ # AWSQueryConnection. Let's do the work manually
+ replication_groups = response['DescribeReplicationGroupsResponse']['DescribeReplicationGroupsResult']['ReplicationGroups']
+
+ except KeyError as e:
+ error = "ElastiCache [Replication Groups] query to AWS failed (unexpected format)."
+ self.fail_with_error(error, 'getting ElastiCache clusters')
+
+ for replication_group in replication_groups:
+ self.add_elasticache_replication_group(replication_group, region)
+
+ def get_auth_error_message(self):
+ ''' create an informative error message if there is an issue authenticating'''
+ errors = ["Authentication error retrieving ec2 inventory."]
+ if None in [os.environ.get('AWS_ACCESS_KEY_ID'), os.environ.get('AWS_SECRET_ACCESS_KEY')]:
+ errors.append(' - No AWS_ACCESS_KEY_ID or AWS_SECRET_ACCESS_KEY environment vars found')
else:
- conn = ec2.connect_to_region(region)
+ errors.append(' - AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment vars found but may not be correct')
- # connect_to_region will fail "silently" by returning None if the region name is wrong or not supported
- if conn is None:
- print("region name: %s likely not supported, or AWS is down. connection to region failed." % region)
- sys.exit(1)
+ boto_paths = ['/etc/boto.cfg', '~/.boto', '~/.aws/credentials']
+ boto_config_found = list(p for p in boto_paths if os.path.isfile(os.path.expanduser(p)))
+ if len(boto_config_found) > 0:
+ errors.append(" - Boto configs found at '%s', but the credentials contained may not be correct" % ', '.join(boto_config_found))
+ else:
+ errors.append(" - No Boto config found at any expected location '%s'" % ', '.join(boto_paths))
+
+ return '\n'.join(errors)
+
+ def fail_with_error(self, err_msg, err_operation=None):
+ '''log an error to std err for ansible-playbook to consume and exit'''
+ if err_operation:
+ err_msg = 'ERROR: "{err_msg}", while: {err_operation}'.format(
+ err_msg=err_msg, err_operation=err_operation)
+ sys.stderr.write(err_msg)
+ sys.exit(1)
+
+ def get_instance(self, region, instance_id):
+ conn = self.connect(region)
reservations = conn.get_all_instances([instance_id])
for reservation in reservations:
@@ -414,8 +612,8 @@ class Ec2Inventory(object):
''' Adds an instance to the inventory and index, as long as it is
addressable '''
- # Only want running instances unless all_instances is True
- if not self.all_instances and instance.state != 'running':
+ # Only return instances with desired instance states
+ if instance.state not in self.ec2_instance_states:
return
# Select the best destination address
@@ -502,18 +700,21 @@ class Ec2Inventory(object):
if self.nested_groups:
self.push_group(self.inventory, 'security_groups', key)
except AttributeError:
- print 'Package boto seems a bit older.'
- print 'Please upgrade boto >= 2.3.0.'
- sys.exit(1)
+ self.fail_with_error('\n'.join(['Package boto seems a bit older.',
+ 'Please upgrade boto >= 2.3.0.']))
# Inventory: Group by tag keys
if self.group_by_tag_keys:
- for k, v in instance.tags.iteritems():
- key = self.to_safe("tag_" + k + "=" + v)
+ for k, v in instance.tags.items():
+ if v:
+ key = self.to_safe("tag_" + k + "=" + v)
+ else:
+ key = self.to_safe("tag_" + k)
self.push(self.inventory, key, dest)
if self.nested_groups:
self.push_group(self.inventory, 'tags', self.to_safe("tag_" + k))
- self.push_group(self.inventory, self.to_safe("tag_" + k), key)
+ if v:
+ self.push_group(self.inventory, self.to_safe("tag_" + k), key)
# Inventory: Group by Route53 domain names if enabled
if self.route53_enabled and self.group_by_route53_names:
@@ -597,9 +798,9 @@ class Ec2Inventory(object):
self.push_group(self.inventory, 'security_groups', key)
except AttributeError:
- print 'Package boto seems a bit older.'
- print 'Please upgrade boto >= 2.3.0.'
- sys.exit(1)
+ self.fail_with_error('\n'.join(['Package boto seems a bit older.',
+ 'Please upgrade boto >= 2.3.0.']))
+
# Inventory: Group by engine
if self.group_by_rds_engine:
@@ -618,6 +819,243 @@ class Ec2Inventory(object):
self.inventory["_meta"]["hostvars"][dest] = self.get_host_info_dict_from_instance(instance)
+ def add_elasticache_cluster(self, cluster, region):
+ ''' Adds an ElastiCache cluster to the inventory and index, as long as
+ it's nodes are addressable '''
+
+ # Only want available clusters unless all_elasticache_clusters is True
+ if not self.all_elasticache_clusters and cluster['CacheClusterStatus'] != 'available':
+ return
+
+ # Select the best destination address
+ if 'ConfigurationEndpoint' in cluster and cluster['ConfigurationEndpoint']:
+ # Memcached cluster
+ dest = cluster['ConfigurationEndpoint']['Address']
+ is_redis = False
+ else:
+ # Redis sigle node cluster
+ # Because all Redis clusters are single nodes, we'll merge the
+ # info from the cluster with info about the node
+ dest = cluster['CacheNodes'][0]['Endpoint']['Address']
+ is_redis = True
+
+ if not dest:
+ # Skip clusters we cannot address (e.g. private VPC subnet)
+ return
+
+ # Add to index
+ self.index[dest] = [region, cluster['CacheClusterId']]
+
+ # Inventory: Group by instance ID (always a group of 1)
+ if self.group_by_instance_id:
+ self.inventory[cluster['CacheClusterId']] = [dest]
+ if self.nested_groups:
+ self.push_group(self.inventory, 'instances', cluster['CacheClusterId'])
+
+ # Inventory: Group by region
+ if self.group_by_region and not is_redis:
+ self.push(self.inventory, region, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'regions', region)
+
+ # Inventory: Group by availability zone
+ if self.group_by_availability_zone and not is_redis:
+ self.push(self.inventory, cluster['PreferredAvailabilityZone'], dest)
+ if self.nested_groups:
+ if self.group_by_region:
+ self.push_group(self.inventory, region, cluster['PreferredAvailabilityZone'])
+ self.push_group(self.inventory, 'zones', cluster['PreferredAvailabilityZone'])
+
+ # Inventory: Group by node type
+ if self.group_by_instance_type and not is_redis:
+ type_name = self.to_safe('type_' + cluster['CacheNodeType'])
+ self.push(self.inventory, type_name, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'types', type_name)
+
+ # Inventory: Group by VPC (information not available in the current
+ # AWS API version for ElastiCache)
+
+ # Inventory: Group by security group
+ if self.group_by_security_group and not is_redis:
+
+ # Check for the existence of the 'SecurityGroups' key and also if
+ # this key has some value. When the cluster is not placed in a SG
+ # the query can return None here and cause an error.
+ if 'SecurityGroups' in cluster and cluster['SecurityGroups'] is not None:
+ for security_group in cluster['SecurityGroups']:
+ key = self.to_safe("security_group_" + security_group['SecurityGroupId'])
+ self.push(self.inventory, key, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'security_groups', key)
+
+ # Inventory: Group by engine
+ if self.group_by_elasticache_engine and not is_redis:
+ self.push(self.inventory, self.to_safe("elasticache_" + cluster['Engine']), dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'elasticache_engines', self.to_safe(cluster['Engine']))
+
+ # Inventory: Group by parameter group
+ if self.group_by_elasticache_parameter_group:
+ self.push(self.inventory, self.to_safe("elasticache_parameter_group_" + cluster['CacheParameterGroup']['CacheParameterGroupName']), dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'elasticache_parameter_groups', self.to_safe(cluster['CacheParameterGroup']['CacheParameterGroupName']))
+
+ # Inventory: Group by replication group
+ if self.group_by_elasticache_replication_group and 'ReplicationGroupId' in cluster and cluster['ReplicationGroupId']:
+ self.push(self.inventory, self.to_safe("elasticache_replication_group_" + cluster['ReplicationGroupId']), dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'elasticache_replication_groups', self.to_safe(cluster['ReplicationGroupId']))
+
+ # Global Tag: all ElastiCache clusters
+ self.push(self.inventory, 'elasticache_clusters', cluster['CacheClusterId'])
+
+ host_info = self.get_host_info_dict_from_describe_dict(cluster)
+
+ self.inventory["_meta"]["hostvars"][dest] = host_info
+
+ # Add the nodes
+ for node in cluster['CacheNodes']:
+ self.add_elasticache_node(node, cluster, region)
+
+ def add_elasticache_node(self, node, cluster, region):
+ ''' Adds an ElastiCache node to the inventory and index, as long as
+ it is addressable '''
+
+ # Only want available nodes unless all_elasticache_nodes is True
+ if not self.all_elasticache_nodes and node['CacheNodeStatus'] != 'available':
+ return
+
+ # Select the best destination address
+ dest = node['Endpoint']['Address']
+
+ if not dest:
+ # Skip nodes we cannot address (e.g. private VPC subnet)
+ return
+
+ node_id = self.to_safe(cluster['CacheClusterId'] + '_' + node['CacheNodeId'])
+
+ # Add to index
+ self.index[dest] = [region, node_id]
+
+ # Inventory: Group by node ID (always a group of 1)
+ if self.group_by_instance_id:
+ self.inventory[node_id] = [dest]
+ if self.nested_groups:
+ self.push_group(self.inventory, 'instances', node_id)
+
+ # Inventory: Group by region
+ if self.group_by_region:
+ self.push(self.inventory, region, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'regions', region)
+
+ # Inventory: Group by availability zone
+ if self.group_by_availability_zone:
+ self.push(self.inventory, cluster['PreferredAvailabilityZone'], dest)
+ if self.nested_groups:
+ if self.group_by_region:
+ self.push_group(self.inventory, region, cluster['PreferredAvailabilityZone'])
+ self.push_group(self.inventory, 'zones', cluster['PreferredAvailabilityZone'])
+
+ # Inventory: Group by node type
+ if self.group_by_instance_type:
+ type_name = self.to_safe('type_' + cluster['CacheNodeType'])
+ self.push(self.inventory, type_name, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'types', type_name)
+
+ # Inventory: Group by VPC (information not available in the current
+ # AWS API version for ElastiCache)
+
+ # Inventory: Group by security group
+ if self.group_by_security_group:
+
+ # Check for the existence of the 'SecurityGroups' key and also if
+ # this key has some value. When the cluster is not placed in a SG
+ # the query can return None here and cause an error.
+ if 'SecurityGroups' in cluster and cluster['SecurityGroups'] is not None:
+ for security_group in cluster['SecurityGroups']:
+ key = self.to_safe("security_group_" + security_group['SecurityGroupId'])
+ self.push(self.inventory, key, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'security_groups', key)
+
+ # Inventory: Group by engine
+ if self.group_by_elasticache_engine:
+ self.push(self.inventory, self.to_safe("elasticache_" + cluster['Engine']), dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'elasticache_engines', self.to_safe("elasticache_" + cluster['Engine']))
+
+ # Inventory: Group by parameter group (done at cluster level)
+
+ # Inventory: Group by replication group (done at cluster level)
+
+ # Inventory: Group by ElastiCache Cluster
+ if self.group_by_elasticache_cluster:
+ self.push(self.inventory, self.to_safe("elasticache_cluster_" + cluster['CacheClusterId']), dest)
+
+ # Global Tag: all ElastiCache nodes
+ self.push(self.inventory, 'elasticache_nodes', dest)
+
+ host_info = self.get_host_info_dict_from_describe_dict(node)
+
+ if dest in self.inventory["_meta"]["hostvars"]:
+ self.inventory["_meta"]["hostvars"][dest].update(host_info)
+ else:
+ self.inventory["_meta"]["hostvars"][dest] = host_info
+
+ def add_elasticache_replication_group(self, replication_group, region):
+ ''' Adds an ElastiCache replication group to the inventory and index '''
+
+ # Only want available clusters unless all_elasticache_replication_groups is True
+ if not self.all_elasticache_replication_groups and replication_group['Status'] != 'available':
+ return
+
+ # Select the best destination address (PrimaryEndpoint)
+ dest = replication_group['NodeGroups'][0]['PrimaryEndpoint']['Address']
+
+ if not dest:
+ # Skip clusters we cannot address (e.g. private VPC subnet)
+ return
+
+ # Add to index
+ self.index[dest] = [region, replication_group['ReplicationGroupId']]
+
+ # Inventory: Group by ID (always a group of 1)
+ if self.group_by_instance_id:
+ self.inventory[replication_group['ReplicationGroupId']] = [dest]
+ if self.nested_groups:
+ self.push_group(self.inventory, 'instances', replication_group['ReplicationGroupId'])
+
+ # Inventory: Group by region
+ if self.group_by_region:
+ self.push(self.inventory, region, dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'regions', region)
+
+ # Inventory: Group by availability zone (doesn't apply to replication groups)
+
+ # Inventory: Group by node type (doesn't apply to replication groups)
+
+ # Inventory: Group by VPC (information not available in the current
+ # AWS API version for replication groups
+
+ # Inventory: Group by security group (doesn't apply to replication groups)
+ # Check this value in cluster level
+
+ # Inventory: Group by engine (replication groups are always Redis)
+ if self.group_by_elasticache_engine:
+ self.push(self.inventory, 'elasticache_redis', dest)
+ if self.nested_groups:
+ self.push_group(self.inventory, 'elasticache_engines', 'redis')
+
+ # Global Tag: all ElastiCache clusters
+ self.push(self.inventory, 'elasticache_replication_groups', replication_group['ReplicationGroupId'])
+
+ host_info = self.get_host_info_dict_from_describe_dict(replication_group)
+
+ self.inventory["_meta"]["hostvars"][dest] = host_info
def get_route53_records(self):
''' Get and store the map of resource records to domain names that
@@ -666,7 +1104,6 @@ class Ec2Inventory(object):
return list(name_list)
-
def get_host_info_dict_from_instance(self, instance):
instance_vars = {}
for key in vars(instance):
@@ -683,7 +1120,7 @@ class Ec2Inventory(object):
instance_vars['ec2_previous_state_code'] = instance.previous_state_code
elif type(value) in [int, bool]:
instance_vars[key] = value
- elif type(value) in [str, unicode]:
+ elif isinstance(value, six.string_types):
instance_vars[key] = value.strip()
elif type(value) == type(None):
instance_vars[key] = ''
@@ -692,7 +1129,7 @@ class Ec2Inventory(object):
elif key == 'ec2__placement':
instance_vars['ec2_placement'] = value.zone
elif key == 'ec2_tags':
- for k, v in value.iteritems():
+ for k, v in value.items():
key = self.to_safe('ec2_tag_' + k)
instance_vars[key] = v
elif key == 'ec2_groups':
@@ -712,6 +1149,91 @@ class Ec2Inventory(object):
return instance_vars
+ def get_host_info_dict_from_describe_dict(self, describe_dict):
+ ''' Parses the dictionary returned by the API call into a flat list
+ of parameters. This method should be used only when 'describe' is
+ used directly because Boto doesn't provide specific classes. '''
+
+ # I really don't agree with prefixing everything with 'ec2'
+ # because EC2, RDS and ElastiCache are different services.
+ # I'm just following the pattern used until now to not break any
+ # compatibility.
+
+ host_info = {}
+ for key in describe_dict:
+ value = describe_dict[key]
+ key = self.to_safe('ec2_' + self.uncammelize(key))
+
+ # Handle complex types
+
+ # Target: Memcached Cache Clusters
+ if key == 'ec2_configuration_endpoint' and value:
+ host_info['ec2_configuration_endpoint_address'] = value['Address']
+ host_info['ec2_configuration_endpoint_port'] = value['Port']
+
+ # Target: Cache Nodes and Redis Cache Clusters (single node)
+ if key == 'ec2_endpoint' and value:
+ host_info['ec2_endpoint_address'] = value['Address']
+ host_info['ec2_endpoint_port'] = value['Port']
+
+ # Target: Redis Replication Groups
+ if key == 'ec2_node_groups' and value:
+ host_info['ec2_endpoint_address'] = value[0]['PrimaryEndpoint']['Address']
+ host_info['ec2_endpoint_port'] = value[0]['PrimaryEndpoint']['Port']
+ replica_count = 0
+ for node in value[0]['NodeGroupMembers']:
+ if node['CurrentRole'] == 'primary':
+ host_info['ec2_primary_cluster_address'] = node['ReadEndpoint']['Address']
+ host_info['ec2_primary_cluster_port'] = node['ReadEndpoint']['Port']
+ host_info['ec2_primary_cluster_id'] = node['CacheClusterId']
+ elif node['CurrentRole'] == 'replica':
+ host_info['ec2_replica_cluster_address_'+ str(replica_count)] = node['ReadEndpoint']['Address']
+ host_info['ec2_replica_cluster_port_'+ str(replica_count)] = node['ReadEndpoint']['Port']
+ host_info['ec2_replica_cluster_id_'+ str(replica_count)] = node['CacheClusterId']
+ replica_count += 1
+
+ # Target: Redis Replication Groups
+ if key == 'ec2_member_clusters' and value:
+ host_info['ec2_member_clusters'] = ','.join([str(i) for i in value])
+
+ # Target: All Cache Clusters
+ elif key == 'ec2_cache_parameter_group':
+ host_info["ec2_cache_node_ids_to_reboot"] = ','.join([str(i) for i in value['CacheNodeIdsToReboot']])
+ host_info['ec2_cache_parameter_group_name'] = value['CacheParameterGroupName']
+ host_info['ec2_cache_parameter_apply_status'] = value['ParameterApplyStatus']
+
+ # Target: Almost everything
+ elif key == 'ec2_security_groups':
+
+ # Skip if SecurityGroups is None
+ # (it is possible to have the key defined but no value in it).
+ if value is not None:
+ sg_ids = []
+ for sg in value:
+ sg_ids.append(sg['SecurityGroupId'])
+ host_info["ec2_security_group_ids"] = ','.join([str(i) for i in sg_ids])
+
+ # Target: Everything
+ # Preserve booleans and integers
+ elif type(value) in [int, bool]:
+ host_info[key] = value
+
+ # Target: Everything
+ # Sanitize string values
+ elif isinstance(value, six.string_types):
+ host_info[key] = value.strip()
+
+ # Target: Everything
+ # Replace None by an empty string
+ elif type(value) == type(None):
+ host_info[key] = ''
+
+ else:
+ # Remove non-processed complex types
+ pass
+
+ return host_info
+
def get_host_info(self):
''' Get variables about a specific host '''
@@ -775,13 +1297,16 @@ class Ec2Inventory(object):
cache.write(json_data)
cache.close()
+ def uncammelize(self, key):
+ temp = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', key)
+ return re.sub('([a-z0-9])([A-Z])', r'\1_\2', temp).lower()
def to_safe(self, word):
- ''' Converts 'bad' characters in a string to underscores so they can be
- used as Ansible groups '''
-
- return re.sub("[^A-Za-z0-9\-]", "_", word)
-
+ ''' Converts 'bad' characters in a string to underscores so they can be used as Ansible groups '''
+ regex = "[^A-Za-z0-9\_"
+ if not self.replace_dash_in_groups:
+ regex += "\-"
+ return re.sub(regex + "]", "_", word)
def json_format_dict(self, data, pretty=False):
''' Converts a dict to a JSON object and dumps it as a formatted