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Fix the AMI creation/modification logic thus making it idempotent

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This commit is contained in:
Filipe Niero Felisbino 2016-06-02 16:36:19 -03:00 committed by Matt Clay
parent bc55db2ff0
commit f8314c3e61
1 changed files with 56 additions and 68 deletions
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124
lib/ansible/modules/extras/cloud/amazon/ec2_eni.py
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@ -18,7 +18,9 @@ DOCUMENTATION = '''
module: ec2_eni
short_description: Create and optionally attach an Elastic Network Interface (ENI) to an instance
description:
- Create and optionally attach an Elastic Network Interface (ENI) to an instance. If an ENI ID is provided, an attempt is made to update the existing ENI. By passing 'None' as the instance_id, an ENI can be detached from an instance.
- Create and optionally attach an Elastic Network Interface (ENI) to an
instance. If an ENI ID is provided, an attempt is made to update the
existing ENI. By passing state=detached, an ENI can be detached from its instance.
version_added: "2.0"
author: "Rob White (@wimnat)"
options:
@ -29,7 +31,8 @@ options:
default: null
instance_id:
description:
- Instance ID that you wish to attach ENI to. To detach an ENI from an instance, use 'None'.
- Instance ID that you wish to attach ENI to, if None the new ENI will be
created in detached state, existing ENI will keep current attachment state.
required: false
default: null
private_ip_address:
@ -54,10 +57,10 @@ options:
default: null
state:
description:
- Create or delete ENI.
- Create, delete or detach ENI from its instance.
required: false
default: present
choices: [ 'present', 'absent' ]
choices: [ 'present', 'absent', 'detached' ]
device_index:
description:
- The index of the device for the network interface attachment on the instance.
@ -129,7 +132,7 @@ EXAMPLES = '''
eni_id: eni-yyyyyyyy
state: present
secondary_private_ip_addresses:
-
-
# Destroy an ENI, detaching it from any instance if necessary
- ec2_eni:
@ -239,7 +242,7 @@ def create_eni(connection, vpc_id, module):
changed = False
try:
eni = compare_eni(connection, module)
eni = find_eni(connection, module)
if eni is None:
eni = connection.create_network_interface(subnet_id, private_ip_address, description, security_groups)
if instance_id is not None:
@ -274,21 +277,13 @@ def create_eni(connection, vpc_id, module):
module.exit_json(changed=changed, interface=get_eni_info(eni))
def modify_eni(connection, vpc_id, module, looked_up_eni_id):
def modify_eni(connection, vpc_id, module, eni):
if looked_up_eni_id is None:
eni_id = module.params.get("eni_id")
else:
eni_id = looked_up_eni_id
instance_id = module.params.get("instance_id")
if instance_id == 'None':
instance_id = None
do_detach = True
else:
do_detach = False
do_detach = module.params.get('state') == 'detached'
device_index = module.params.get("device_index")
description = module.params.get('description')
security_groups = get_ec2_security_group_ids_from_names(module.params.get('security_groups'), connection, vpc_id=vpc_id, boto3=False)
security_groups = module.params.get('security_groups')
force_detach = module.params.get("force_detach")
source_dest_check = module.params.get("source_dest_check")
delete_on_termination = module.params.get("delete_on_termination")
@ -297,28 +292,23 @@ def modify_eni(connection, vpc_id, module, looked_up_eni_id):
changed = False
try:
# Get the eni with the eni_id specified
eni_result_set = connection.get_all_network_interfaces(eni_id)
eni = eni_result_set[0]
if description is not None:
if eni.description != description:
connection.modify_network_interface_attribute(eni.id, "description", description)
changed = True
if security_groups is not None:
if sorted(get_sec_group_list(eni.groups)) != sorted(security_groups):
connection.modify_network_interface_attribute(eni.id, "groupSet", security_groups)
if len(security_groups) > 0:
groups = get_ec2_security_group_ids_from_names(security_groups, connection, vpc_id=vpc_id, boto3=False)
if sorted(get_sec_group_list(eni.groups)) != sorted(groups):
connection.modify_network_interface_attribute(eni.id, "groupSet", groups)
changed = True
if source_dest_check is not None:
if eni.source_dest_check != source_dest_check:
connection.modify_network_interface_attribute(eni.id, "sourceDestCheck", source_dest_check)
changed = True
if delete_on_termination is not None:
if eni.attachment is not None:
if eni.attachment.delete_on_termination is not delete_on_termination:
connection.modify_network_interface_attribute(eni.id, "deleteOnTermination", delete_on_termination, eni.attachment.id)
changed = True
else:
module.fail_json(msg="Can not modify delete_on_termination as the interface is not attached")
if delete_on_termination is not None and eni.attachment is not None:
if eni.attachment.delete_on_termination is not delete_on_termination:
connection.modify_network_interface_attribute(eni.id, "deleteOnTermination", delete_on_termination, eni.attachment.id)
changed = True
current_secondary_addresses = [i.private_ip_address for i in eni.private_ip_addresses if not i.primary]
if secondary_private_ip_addresses is not None:
@ -337,15 +327,10 @@ def modify_eni(connection, vpc_id, module, looked_up_eni_id):
secondary_addresses_to_remove_count = current_secondary_address_count - secondary_private_ip_address_count
connection.unassign_private_ip_addresses(network_interface_id=eni.id, private_ip_addresses=current_secondary_addresses[:secondary_addresses_to_remove_count], dry_run=False)
if eni.attachment is not None and instance_id is None and do_detach is True:
eni.detach(force_detach)
wait_for_eni(eni, "detached")
if instance_id is not None:
eni.attach(instance_id, device_index)
wait_for_eni(eni, "attached")
changed = True
else:
if instance_id is not None:
eni.attach(instance_id, device_index)
wait_for_eni(eni, "attached")
changed = True
except BotoServerError as e:
module.fail_json(msg=e.message)
@ -384,21 +369,36 @@ def delete_eni(connection, module):
module.fail_json(msg=e.message)
def compare_eni(connection, module):
def detach_eni(connection, module):
eni = find_eni(connection, module)
if eni.attachment is not None:
eni.detach(force_detach)
wait_for_eni(eni, "detached")
eni.update()
module.exit_json(changed=True, interface=get_eni_info(eni))
else:
module.exit_json(changed=False, interface=get_eni_info(eni))
def find_eni(connection, module):
eni_id = module.params.get("eni_id")
subnet_id = module.params.get('subnet_id')
private_ip_address = module.params.get('private_ip_address')
description = module.params.get('description')
security_groups = module.params.get('security_groups')
try:
all_eni = connection.get_all_network_interfaces(eni_id)
filters = {}
if private_ip_address:
filters['private-ip-address'] = private_ip_address
if subnet_id:
filters['subnet-id'] = subnet_id
for eni in all_eni:
remote_security_groups = get_sec_group_list(eni.groups)
if (eni.subnet_id == subnet_id) and (eni.private_ip_address == private_ip_address) and (eni.description == description) and (sorted(remote_security_groups) == sorted(security_groups)):
return eni
eni_result = connection.get_all_network_interfaces(eni_id, filters=filters)
if len(eni_result) > 0:
return eni_result[0]
else:
return None
except BotoServerError as e:
module.fail_json(msg=e.message)
@ -424,22 +424,6 @@ def _get_vpc_id(connection, module, subnet_id):
module.fail_json(msg=e.message)
def get_eni_id_by_ip(connection, module):
subnet_id = module.params.get('subnet_id')
private_ip_address = module.params.get('private_ip_address')
try:
all_eni = connection.get_all_network_interfaces(filters={'private-ip-address': private_ip_address, 'subnet-id': subnet_id})
except BotoServerError as e:
module.fail_json(msg=e.message)
if all_eni:
return all_eni[0].id
else:
return None
def main():
argument_spec = ec2_argument_spec()
argument_spec.update(
@ -451,7 +435,7 @@ def main():
description=dict(type='str'),
security_groups=dict(default=[], type='list'),
device_index=dict(default=0, type='int'),
state=dict(default='present', choices=['present', 'absent']),
state=dict(default='present', choices=['present', 'absent', 'detached']),
force_detach=dict(default='no', type='bool'),
source_dest_check=dict(default=None, type='bool'),
delete_on_termination=dict(default=None, type='bool'),
@ -467,6 +451,7 @@ def main():
required_if=([
('state', 'present', ['subnet_id']),
('state', 'absent', ['eni_id']),
('state', 'detached', ['eni_id']),
])
)
@ -491,16 +476,19 @@ def main():
if state == 'present':
subnet_id = module.params.get("subnet_id")
vpc_id = _get_vpc_id(vpc_connection, module, subnet_id)
# If private_ip_address is not None, look up to see if an ENI already exists with that IP
if eni_id is None and private_ip_address is not None:
eni_id = get_eni_id_by_ip(connection, module)
if eni_id is None:
eni = find_eni(connection, module)
if eni is None:
create_eni(connection, vpc_id, module)
else:
modify_eni(connection, vpc_id, module, eni_id)
modify_eni(connection, vpc_id, module, eni)
elif state == 'absent':
delete_eni(connection, module)
elif state == 'detached':
detach_eni(connection, module)
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *