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Merge pull request #10211 from cchurch/tower_ec2_inventory

Update EC2 inventory script with changes from Tower.
This commit is contained in:
Brian Coca 2015-02-11 08:34:32 -05:00
commit a76a6ee726
2 changed files with 144 additions and 71 deletions

View file

@ -71,6 +71,22 @@ cache_max_age = 300
# Organize groups into a nested/hierarchy instead of a flat namespace.
nested_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
# If you only want to include hosts that match a certain regular expression
# pattern_include = stage-*

View file

@ -253,6 +253,28 @@ class Ec2Inventory(object):
else:
self.nested_groups = False
# Configure which groups should be created.
group_by_options = [
'group_by_instance_id',
'group_by_region',
'group_by_availability_zone',
'group_by_ami_id',
'group_by_instance_type',
'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',
]
for option in group_by_options:
if config.has_option('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?
try:
pattern_include = config.get('ec2', 'pattern_include')
@ -273,11 +295,16 @@ class Ec2Inventory(object):
except ConfigParser.NoOptionError, e:
self.pattern_exclude = None
# Instance filters (see boto and EC2 API docs)
# Instance filters (see boto and EC2 API docs). Ignore invalid filters.
self.ec2_instance_filters = defaultdict(list)
if config.has_option('ec2', 'instance_filters'):
for x in config.get('ec2', 'instance_filters', '').split(','):
filter_key, filter_value = x.split('=')
for instance_filter in config.get('ec2', 'instance_filters', '').split(','):
instance_filter = instance_filter.strip()
if not instance_filter or '=' not in instance_filter:
continue
filter_key, filter_value = [x.strip() for x in instance_filter.split('=', 1)]
if not filter_key:
continue
self.ec2_instance_filters[filter_key].append(filter_value)
def parse_cli_args(self):
@ -409,39 +436,55 @@ class Ec2Inventory(object):
self.index[dest] = [region, instance.id]
# Inventory: Group by instance ID (always a group of 1)
if self.group_by_instance_id:
self.inventory[instance.id] = [dest]
if self.nested_groups:
self.push_group(self.inventory, 'instances', instance.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)
else:
self.push(self.inventory, region, dest)
# Inventory: Group by availability zone
if self.group_by_availability_zone:
self.push(self.inventory, instance.placement, dest)
if self.nested_groups:
if self.group_by_region:
self.push_group(self.inventory, region, instance.placement)
self.push_group(self.inventory, 'zones', instance.placement)
# Inventory: Group by Amazon Machine Image (AMI) ID
if self.group_by_ami_id:
ami_id = self.to_safe(instance.image_id)
self.push(self.inventory, ami_id, dest)
if self.nested_groups:
self.push_group(self.inventory, 'images', ami_id)
# Inventory: Group by instance type
if self.group_by_instance_type:
type_name = self.to_safe('type_' + instance.instance_type)
self.push(self.inventory, type_name, dest)
if self.nested_groups:
self.push_group(self.inventory, 'types', type_name)
# Inventory: Group by key pair
if instance.key_name:
if self.group_by_key_pair and instance.key_name:
key_name = self.to_safe('key_' + instance.key_name)
self.push(self.inventory, key_name, dest)
if self.nested_groups:
self.push_group(self.inventory, 'keys', key_name)
# Inventory: Group by VPC
if instance.vpc_id:
self.push(self.inventory, self.to_safe('vpc_id_' + instance.vpc_id), dest)
if self.group_by_vpc_id and instance.vpc_id:
vpc_id_name = self.to_safe('vpc_id_' + instance.vpc_id)
self.push(self.inventory, vpc_id_name, dest)
if self.nested_groups:
self.push_group(self.inventory, 'vpcs', vpc_id_name)
# Inventory: Group by security group
if self.group_by_security_group:
try:
for group in instance.groups:
key = self.to_safe("security_group_" + group.name)
@ -454,6 +497,7 @@ class Ec2Inventory(object):
sys.exit(1)
# 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)
self.push(self.inventory, key, dest)
@ -462,7 +506,7 @@ class Ec2Inventory(object):
self.push_group(self.inventory, self.to_safe("tag_" + k), key)
# Inventory: Group by Route53 domain names if enabled
if self.route53_enabled:
if self.route53_enabled and self.group_by_route53_names:
route53_names = self.get_instance_route53_names(instance)
for name in route53_names:
self.push(self.inventory, name, dest)
@ -470,8 +514,10 @@ class Ec2Inventory(object):
self.push_group(self.inventory, 'route53', name)
# Global Tag: instances without tags
if len(instance.tags) == 0:
if self.group_by_tag_none and len(instance.tags) == 0:
self.push(self.inventory, 'tag_none', dest)
if self.nested_groups:
self.push_group(self.inventory, 'tags', 'tag_none')
# Global Tag: tag all EC2 instances
self.push(self.inventory, 'ec2', dest)
@ -488,10 +534,6 @@ class Ec2Inventory(object):
return
# Select the best destination address
#if instance.subnet_id:
#dest = getattr(instance, self.vpc_destination_variable)
#else:
#dest = getattr(instance, self.destination_variable)
dest = instance.endpoint[0]
if not dest:
@ -502,28 +544,41 @@ class Ec2Inventory(object):
self.index[dest] = [region, instance.id]
# Inventory: Group by instance ID (always a group of 1)
if self.group_by_instance_id:
self.inventory[instance.id] = [dest]
if self.nested_groups:
self.push_group(self.inventory, 'instances', instance.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)
else:
self.push(self.inventory, region, dest)
# Inventory: Group by availability zone
if self.group_by_availability_zone:
self.push(self.inventory, instance.availability_zone, dest)
if self.nested_groups:
if self.group_by_region:
self.push_group(self.inventory, region, instance.availability_zone)
self.push_group(self.inventory, 'zones', instance.availability_zone)
# Inventory: Group by instance type
if self.group_by_instance_type:
type_name = self.to_safe('type_' + instance.instance_class)
self.push(self.inventory, type_name, dest)
if self.nested_groups:
self.push_group(self.inventory, 'types', type_name)
# Inventory: Group by VPC
if self.group_by_vpc_id and instance.subnet_group and instance.subnet_group.vpc_id:
vpc_id_name = self.to_safe('vpc_id_' + instance.subnet_group.vpc_id)
self.push(self.inventory, vpc_id_name, dest)
if self.nested_groups:
self.push_group(self.inventory, 'vpcs', vpc_id_name)
# Inventory: Group by security group
if self.group_by_security_group:
try:
if instance.security_group:
key = self.to_safe("security_group_" + instance.security_group.name)
@ -537,11 +592,13 @@ class Ec2Inventory(object):
sys.exit(1)
# Inventory: Group by engine
if self.group_by_rds_engine:
self.push(self.inventory, self.to_safe("rds_" + instance.engine), dest)
if self.nested_groups:
self.push_group(self.inventory, 'rds_engines', self.to_safe("rds_" + instance.engine))
# Inventory: Group by parameter group
if self.group_by_rds_parameter_group:
self.push(self.inventory, self.to_safe("rds_parameter_group_" + instance.parameter_group.name), dest)
if self.nested_groups:
self.push_group(self.inventory, 'rds_parameter_groups', self.to_safe("rds_parameter_group_" + instance.parameter_group.name))