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[cloud][contrib] Set missing default values for EC2 inventory (#28375)

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* Set missing default values for EC2 inventory

* Make it run even with no ec2.ini file

* Fixing INI file reading

* Refactor how defaults are handeled

Define defaults in a dictionary and use .get rather than if statements with has_option

* Removing double keys and fixing logic for instance_filter

* Removing one more doubled key
This commit is contained in:
Jiri Tyr 2017-09-29 15:48:48 +01:00 committed by Ryan Brown
parent 916e6be888
commit d35ef1fc21
1 changed files with 108 additions and 129 deletions
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237
contrib/inventory/ec2.py
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@ -139,7 +139,7 @@ from ansible.module_utils import ec2 as ec2_utils
HAS_BOTO3 = False HAS_BOTO3 = False
try: try:
import boto3 import boto3 # noqa
HAS_BOTO3 = True HAS_BOTO3 = True
except ImportError: except ImportError:
pass pass
@ -152,6 +152,60 @@ try:
except ImportError: except ImportError:
import simplejson as json import simplejson as json
DEFAULTS = {
'all_elasticache_clusters': 'False',
'all_elasticache_nodes': 'False',
'all_elasticache_replication_groups': 'False',
'all_instances': 'False',
'all_rds_instances': 'False',
'aws_access_key_id': None,
'aws_secret_access_key': None,
'aws_security_token': None,
'boto_profile': None,
'cache_max_age': '300',
'cache_path': '~/.ansible/tmp',
'destination_variable': 'public_dns_name',
'elasticache': 'True',
'eucalyptus': 'False',
'eucalyptus_host': None,
'expand_csv_tags': 'False',
'group_by_ami_id': 'True',
'group_by_availability_zone': 'True',
'group_by_aws_account': 'False',
'group_by_elasticache_cluster': 'True',
'group_by_elasticache_engine': 'True',
'group_by_elasticache_parameter_group': 'True',
'group_by_elasticache_replication_group': 'True',
'group_by_instance_id': 'True',
'group_by_instance_state': 'False',
'group_by_instance_type': 'True',
'group_by_key_pair': 'True',
'group_by_platform': 'True',
'group_by_rds_engine': 'True',
'group_by_rds_parameter_group': 'True',
'group_by_region': 'True',
'group_by_route53_names': 'True',
'group_by_security_group': 'True',
'group_by_tag_keys': 'True',
'group_by_tag_none': 'True',
'group_by_vpc_id': 'True',
'hostname_variable': None,
'iam_role': None,
'include_rds_clusters': 'False',
'nested_groups': 'False',
'pattern_exclude': None,
'pattern_include': None,
'rds': 'False',
'regions': 'all',
'regions_exclude': 'us-gov-west-1, cn-north-1',
'replace_dash_in_groups': 'True',
'route53': 'False',
'route53_excluded_zones': '',
'route53_hostnames': None,
'stack_filters': 'False',
'vpc_destination_variable': 'ip_address'
}
class Ec2Inventory(object): class Ec2Inventory(object):
@ -232,24 +286,32 @@ class Ec2Inventory(object):
} }
if six.PY3: if six.PY3:
config = configparser.ConfigParser() config = configparser.ConfigParser(DEFAULTS)
else: else:
config = configparser.SafeConfigParser() config = configparser.SafeConfigParser(DEFAULTS)
ec2_ini_path = os.environ.get('EC2_INI_PATH', defaults['ec2']['ini_path']) ec2_ini_path = os.environ.get('EC2_INI_PATH', defaults['ec2']['ini_path'])
ec2_ini_path = os.path.expanduser(os.path.expandvars(ec2_ini_path)) ec2_ini_path = os.path.expanduser(os.path.expandvars(ec2_ini_path))
if not os.path.isfile(ec2_ini_path): if not os.path.isfile(ec2_ini_path):
ec2_ini_path = os.path.expanduser(defaults['ec2']['ini_fallback']) ec2_ini_path = os.path.expanduser(defaults['ec2']['ini_fallback'])
config.read(ec2_ini_path) if os.path.isfile(ec2_ini_path):
config.read(ec2_ini_path)
# Add empty sections if they don't exist
try:
config.add_section('ec2')
except configparser.DuplicateSectionError:
pass
try:
config.add_section('credentials')
except configparser.DuplicateSectionError:
pass
# is eucalyptus? # is eucalyptus?
self.eucalyptus_host = None self.eucalyptus = config.getboolean('ec2', 'eucalyptus')
self.eucalyptus = False self.eucalyptus_host = config.get('ec2', 'eucalyptus_host')
if config.has_option('ec2', 'eucalyptus'):
self.eucalyptus = config.getboolean('ec2', 'eucalyptus')
if self.eucalyptus and config.has_option('ec2', 'eucalyptus_host'):
self.eucalyptus_host = config.get('ec2', 'eucalyptus_host')
# Regions # Regions
self.regions = [] self.regions = []
@ -259,6 +321,7 @@ class Ec2Inventory(object):
self.regions.append(boto.connect_euca(host=self.eucalyptus_host).region.name, **self.credentials) self.regions.append(boto.connect_euca(host=self.eucalyptus_host).region.name, **self.credentials)
else: else:
configRegions_exclude = config.get('ec2', 'regions_exclude') configRegions_exclude = config.get('ec2', 'regions_exclude')
for regionInfo in ec2.regions(): for regionInfo in ec2.regions():
if regionInfo.name not in configRegions_exclude: if regionInfo.name not in configRegions_exclude:
self.regions.append(regionInfo.name) self.regions.append(regionInfo.name)
@ -273,11 +336,7 @@ class Ec2Inventory(object):
# Destination addresses # Destination addresses
self.destination_variable = config.get('ec2', 'destination_variable') self.destination_variable = config.get('ec2', 'destination_variable')
self.vpc_destination_variable = config.get('ec2', 'vpc_destination_variable') self.vpc_destination_variable = config.get('ec2', 'vpc_destination_variable')
self.hostname_variable = config.get('ec2', 'hostname_variable')
if config.has_option('ec2', 'hostname_variable'):
self.hostname_variable = config.get('ec2', 'hostname_variable')
else:
self.hostname_variable = None
if config.has_option('ec2', 'destination_format') and \ if config.has_option('ec2', 'destination_format') and \
config.has_option('ec2', 'destination_format_tags'): config.has_option('ec2', 'destination_format_tags'):
@ -289,36 +348,22 @@ class Ec2Inventory(object):
# Route53 # Route53
self.route53_enabled = config.getboolean('ec2', 'route53') self.route53_enabled = config.getboolean('ec2', 'route53')
if config.has_option('ec2', 'route53_hostnames'): self.route53_hostnames = config.get('ec2', 'route53_hostnames')
self.route53_hostnames = config.get('ec2', 'route53_hostnames')
else:
self.route53_hostnames = None
self.route53_excluded_zones = [] self.route53_excluded_zones = []
if config.has_option('ec2', 'route53_excluded_zones'): self.route53_excluded_zones = [a for a in config.get('ec2', 'route53_excluded_zones').split(',') if a]
self.route53_excluded_zones.extend(
config.get('ec2', 'route53_excluded_zones', '').split(','))
# Include RDS instances? # Include RDS instances?
self.rds_enabled = True self.rds_enabled = config.get('ec2', 'rds')
if config.has_option('ec2', 'rds'):
self.rds_enabled = config.getboolean('ec2', 'rds')
# Include RDS cluster instances? # Include RDS cluster instances?
if config.has_option('ec2', 'include_rds_clusters'): self.include_rds_clusters = config.getboolean('ec2', 'include_rds_clusters')
self.include_rds_clusters = config.getboolean('ec2', 'include_rds_clusters')
else:
self.include_rds_clusters = False
# Include ElastiCache instances? # Include ElastiCache instances?
self.elasticache_enabled = True self.elasticache_enabled = config.getboolean('ec2', 'elasticache')
if config.has_option('ec2', 'elasticache'):
self.elasticache_enabled = config.getboolean('ec2', 'elasticache')
# Return all EC2 instances? # Return all EC2 instances?
if config.has_option('ec2', 'all_instances'): self.all_instances = config.getboolean('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'. # Instance states to be gathered in inventory. Default is 'running'.
# Setting 'all_instances' to 'yes' overrides this option. # Setting 'all_instances' to 'yes' overrides this option.
@ -343,49 +388,30 @@ class Ec2Inventory(object):
self.ec2_instance_states = ['running'] self.ec2_instance_states = ['running']
# Return all RDS instances? (if RDS is enabled) # 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')
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) # 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')
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) # 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')
self.all_elasticache_clusters = config.getboolean('ec2', 'all_elasticache_clusters')
else:
self.all_elasticache_clusters = False
# Return all ElastiCache nodes? (if ElastiCache is enabled) # 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')
self.all_elasticache_nodes = config.getboolean('ec2', 'all_elasticache_nodes')
else:
self.all_elasticache_nodes = False
# boto configuration profile (prefer CLI argument then environment variables then config file) # boto configuration profile (prefer CLI argument then environment variables then config file)
self.boto_profile = self.args.boto_profile or os.environ.get('AWS_PROFILE') self.boto_profile = self.args.boto_profile or \
if config.has_option('ec2', 'boto_profile') and not self.boto_profile: os.environ.get('AWS_PROFILE') or \
self.boto_profile = config.get('ec2', 'boto_profile') config.get('ec2', 'boto_profile')
# AWS credentials (prefer environment variables) # AWS credentials (prefer environment variables)
if not (self.boto_profile or os.environ.get('AWS_ACCESS_KEY_ID') or if not (self.boto_profile or os.environ.get('AWS_ACCESS_KEY_ID') or
os.environ.get('AWS_PROFILE')): os.environ.get('AWS_PROFILE')):
if config.has_option('credentials', 'aws_access_key_id'):
aws_access_key_id = config.get('credentials', 'aws_access_key_id') aws_access_key_id = config.get('credentials', 'aws_access_key_id')
else: aws_secret_access_key = config.get('credentials', 'aws_secret_access_key')
aws_access_key_id = None aws_security_token = config.get('credentials', 'aws_security_token')
if config.has_option('credentials', 'aws_secret_access_key'):
aws_secret_access_key = config.get('credentials', 'aws_secret_access_key')
else:
aws_secret_access_key = None
if config.has_option('credentials', 'aws_security_token'):
aws_security_token = config.get('credentials', 'aws_security_token')
else:
aws_security_token = None
if aws_access_key_id: if aws_access_key_id:
self.credentials = { self.credentials = {
'aws_access_key_id': aws_access_key_id, 'aws_access_key_id': aws_access_key_id,
@ -409,86 +435,39 @@ class Ec2Inventory(object):
self.cache_path_index = os.path.join(cache_dir, "%s.index" % cache_name) self.cache_path_index = os.path.join(cache_dir, "%s.index" % cache_name)
self.cache_max_age = config.getint('ec2', 'cache_max_age') self.cache_max_age = config.getint('ec2', 'cache_max_age')
if config.has_option('ec2', 'expand_csv_tags'): self.expand_csv_tags = config.getboolean('ec2', 'expand_csv_tags')
self.expand_csv_tags = config.getboolean('ec2', 'expand_csv_tags')
else:
self.expand_csv_tags = False
# Configure nested groups instead of flat namespace. # Configure nested groups instead of flat namespace.
if config.has_option('ec2', 'nested_groups'): self.nested_groups = config.getboolean('ec2', 'nested_groups')
self.nested_groups = config.getboolean('ec2', 'nested_groups')
else:
self.nested_groups = False
# Replace dash or not in group names # 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')
self.replace_dash_in_groups = config.getboolean('ec2', 'replace_dash_in_groups')
else:
self.replace_dash_in_groups = True
# IAM role to assume for connection # IAM role to assume for connection
if config.has_option('ec2', 'iam_role'): self.iam_role = config.get('ec2', 'iam_role')
self.iam_role = config.get('ec2', 'iam_role')
else:
self.iam_role = None
# Configure which groups should be created. # Configure which groups should be created.
group_by_options = [
'group_by_instance_id', group_by_options = [a for a in DEFAULTS if a.startswith('group_by')]
'group_by_region',
'group_by_availability_zone',
'group_by_ami_id',
'group_by_instance_type',
'group_by_instance_state',
'group_by_platform',
'group_by_key_pair',
'group_by_vpc_id',
'group_by_security_group',
'group_by_tag_keys',
'group_by_tag_none',
'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',
'group_by_aws_account',
]
for option in group_by_options: for option in group_by_options:
if config.has_option('ec2', option): setattr(self, option, config.getboolean('ec2', option))
setattr(self, option, config.getboolean('ec2', option))
else:
setattr(self, option, True)
# Do we need to just include hosts that match a pattern? # Do we need to just include hosts that match a pattern?
try: self.pattern_include = config.get('ec2', 'pattern_include')
pattern_include = config.get('ec2', 'pattern_include') if self.pattern_include:
if pattern_include and len(pattern_include) > 0: self.pattern_include = re.compile(self.pattern_include)
self.pattern_include = re.compile(pattern_include)
else:
self.pattern_include = None
except configparser.NoOptionError:
self.pattern_include = None
# Do we need to exclude hosts that match a pattern? # Do we need to exclude hosts that match a pattern?
try: self.pattern_exclude = config.get('ec2', 'pattern_exclude')
pattern_exclude = config.get('ec2', 'pattern_exclude') if self.pattern_exclude:
if pattern_exclude and len(pattern_exclude) > 0: self.pattern_exclude = re.compile(self.pattern_exclude)
self.pattern_exclude = re.compile(pattern_exclude)
else:
self.pattern_exclude = None
except configparser.NoOptionError:
self.pattern_exclude = None
# Do we want to stack multiple filters? # Do we want to stack multiple filters?
if config.has_option('ec2', 'stack_filters'): self.stack_filters = config.getboolean('ec2', 'stack_filters')
self.stack_filters = config.getboolean('ec2', 'stack_filters')
else:
self.stack_filters = False
# Instance filters (see boto and EC2 API docs). Ignore invalid filters. # Instance filters (see boto and EC2 API docs). Ignore invalid filters.
self.ec2_instance_filters = [] self.ec2_instance_filters = []
if config.has_option('ec2', 'instance_filters'): if config.has_option('ec2', 'instance_filters'):
filters = config.get('ec2', 'instance_filters') filters = config.get('ec2', 'instance_filters')