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Adding the ability to associate eips with network interfaces

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pull/18777/head
Evan Carter 9 years ago committed by Matt Clay
parent 316ccb0e65
commit c1526ff87b
1 changed files with 103 additions and 48 deletions
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135
lib/ansible/modules/cloud/amazon/ec2_eip.py
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@ -26,6 +26,11 @@ options:
description:
- The EC2 instance id
required: false
network_interface_id:
description:
- The Elastic Network Interface (ENI) id
required: false
version_added: "2.0"
public_ip:
description:
- The elastic IP address to associate with the instance.
@ -57,7 +62,6 @@ options:
required: false
default: false
version_added: "1.6"
extends_documentation_fragment: aws
author: "Lorin Hochstein (@lorin) <lorin@nimbisservices.com>"
notes:
@ -72,22 +76,21 @@ notes:
EXAMPLES = '''
- name: associate an elastic IP with an instance
ec2_eip: instance_id=i-1212f003 ip=93.184.216.119
- name: associate an elastic IP with a device
ec2_eip: network_interface_id=eni-c8ad70f3 ip=93.184.216.119
- name: disassociate an elastic IP from an instance
ec2_eip: instance_id=i-1212f003 ip=93.184.216.119 state=absent
- name: disassociate an elastic IP with a device
ec2_eip: network_interface_id=eni-c8ad70f3 ip=93.184.216.119 state=absent
- name: allocate a new elastic IP and associate it with an instance
ec2_eip: instance_id=i-1212f003
- name: allocate a new elastic IP without associating it to anything
action: ec2_eip
register: eip
- name: output the IP
debug: msg="Allocated IP is {{ eip.public_ip }}"
- name: another way of allocating an elastic IP without associating it to anything
ec2_eip: state='present'
- name: provision new instances with ec2
ec2: keypair=mykey instance_type=c1.medium image=emi-40603AD1 wait=yes'''
''' group=webserver count=3
@ -95,7 +98,6 @@ EXAMPLES = '''
- name: associate new elastic IPs with each of the instances
ec2_eip: "instance_id={{ item }}"
with_items: ec2.instance_ids
- name: allocate a new elastic IP inside a VPC in us-west-2
ec2_eip: region=us-west-2 in_vpc=yes
register: eip
@ -113,27 +115,27 @@ except ImportError:
class EIPException(Exception):
pass
def associate_ip_and_instance(ec2, address, instance_id, check_mode):
if address_is_associated_with_instance(ec2, address, instance_id):
def associate_ip_and_device(ec2, address, device_id, check_mode, isinstance=True):
if address_is_associated_with_device(ec2, address, device_id, isinstance):
return {'changed': False}
# If we're in check mode, nothing else to do
if not check_mode:
if address.domain == 'vpc':
res = ec2.associate_address(instance_id,
allocation_id=address.allocation_id)
if isinstance:
if address.domain == "vpc":
res = ec2.associate_address(device_id, allocation_id=address.allocation_id)
else:
res = ec2.associate_address(instance_id,
public_ip=address.public_ip)
res = ec2.associate_address(device_id, public_ip=address.public_ip)
else:
res = ec2.associate_address(network_interface_id=device_id, allocation_id=address.allocation_id)
if not res:
raise EIPException('association failed')
return {'changed': True}
def disassociate_ip_and_instance(ec2, address, instance_id, check_mode):
if not address_is_associated_with_instance(ec2, address, instance_id):
def disassociate_ip_and_device(ec2, address, device_id, check_mode, isinstance=True):
if not address_is_associated_with_device(ec2, address, device_id, isinstance):
return {'changed': False}
# If we're in check mode, nothing else to do
@ -158,24 +160,33 @@ def _find_address_by_ip(ec2, public_ip):
raise
def _find_address_by_instance_id(ec2, instance_id):
addresses = ec2.get_all_addresses(None, {'instance-id': instance_id})
def _find_address_by_device_id(ec2, device_id, isinstance=True):
if isinstance:
addresses = ec2.get_all_addresses(None, {'instance-id': device_id})
else:
addresses = ec2.get_all_addresses(None, {'network-interface-id': device_id})
if addresses:
return addresses[0]
def find_address(ec2, public_ip, instance_id):
def find_address(ec2, public_ip, device_id, isinstance=True):
""" Find an existing Elastic IP address """
if public_ip:
return _find_address_by_ip(ec2, public_ip)
elif instance_id:
return _find_address_by_instance_id(ec2, instance_id)
elif device_id and isinstance:
return _find_address_by_device_id(ec2, device_id)
elif device_id:
return _find_address_by_device_id(ec2, device_id, isinstance=False)
def address_is_associated_with_instance(ec2, address, instance_id):
""" Check if the elastic IP is currently associated with the instance """
def address_is_associated_with_device(ec2, address, device_id, isinstance=True):
""" Check if the elastic IP is currently associated with the device """
address = ec2.get_all_addresses(address.public_ip)
if address:
return address and address.instance_id == instance_id
if isinstance:
return address and address[0].instance_id == device_id
else:
return address and address[0].network_interface_id == device_id
return False
@ -186,7 +197,7 @@ def allocate_address(ec2, domain, reuse_existing_ip_allowed):
all_addresses = ec2.get_all_addresses(filters=domain_filter)
unassociated_addresses = [a for a in all_addresses
if not a.instance_id]
if not a.device_id]
if unassociated_addresses:
return unassociated_addresses[0]
@ -204,21 +215,33 @@ def release_address(ec2, address, check_mode):
return {'changed': True}
def find_instance(ec2, instance_id):
def find_device(ec2, device_id, isinstance=True):
""" Attempt to find the EC2 instance and return it """
reservations = ec2.get_all_reservations(instance_ids=[instance_id])
if isinstance:
try:
reservations = ec2.get_all_reservations(instance_ids=[device_id])
except boto.exception.EC2ResponseError, e:
module.fail_json(msg=str(e))
if len(reservations) == 1:
instances = reservations[0].instances
if len(instances) == 1:
return instances[0]
else:
try:
interfaces = ec2.get_all_network_interfaces(network_interface_ids=[device_id])
except boto.exception.EC2ResponseError, e:
module.fail_json(msg=str(e))
if len(interfaces) == 1:
return interfaces[0]
raise EIPException("could not find instance" + instance_id)
raise EIPException("could not find instance" + device_id)
def ensure_present(ec2, domain, address, instance_id,
reuse_existing_ip_allowed, check_mode):
def ensure_present(ec2, domain, address, device_id,
reuse_existing_ip_allowed, check_mode, isinstance=True):
changed = False
# Return the EIP object since we've been given a public IP
@ -229,28 +252,39 @@ def ensure_present(ec2, domain, address, instance_id,
address = allocate_address(ec2, domain, reuse_existing_ip_allowed)
changed = True
if instance_id:
if device_id:
# Allocate an IP for instance since no public_ip was provided
instance = find_instance(ec2, instance_id)
if isinstance:
instance = find_device(ec2, device_id)
# Associate address object (provided or allocated) with instance
assoc_result = associate_ip_and_device(ec2, address, device_id,
check_mode)
else:
instance = find_device(ec2, device_id, isinstance=False)
# Associate address object (provided or allocated) with instance
assoc_result = associate_ip_and_device(ec2, address, device_id,
check_mode, isinstance=False)
if instance.vpc_id:
domain = 'vpc'
# Associate address object (provided or allocated) with instance
assoc_result = associate_ip_and_instance(ec2, address, instance_id,
check_mode)
changed = changed or assoc_result['changed']
return {'changed': changed, 'public_ip': address.public_ip}
def ensure_absent(ec2, domain, address, instance_id, check_mode):
def ensure_absent(ec2, domain, address, device_id, check_mode, isinstance=True):
if not address:
return {'changed': False}
# disassociating address from instance
if instance_id:
return disassociate_ip_and_instance(ec2, address, instance_id,
if device_id:
if isinstance:
return disassociate_ip_and_device(ec2, address, device_id,
check_mode)
else:
return disassociate_ip_and_device(ec2, address, device_id,
check_mode, isinstance=False)
# releasing address
else:
return release_address(ec2, address, check_mode)
@ -260,6 +294,7 @@ def main():
argument_spec = ec2_argument_spec()
argument_spec.update(dict(
instance_id=dict(required=False),
network_interface_id=dict(required=False),
public_ip=dict(required=False, aliases=['ip']),
state=dict(required=False, default='present',
choices=['present', 'absent']),
@ -280,6 +315,7 @@ def main():
ec2 = ec2_connect(module)
instance_id = module.params.get('instance_id')
network_interface_id = module.params.get('network_interface_id')
public_ip = module.params.get('public_ip')
state = module.params.get('state')
in_vpc = module.params.get('in_vpc')
@ -287,20 +323,39 @@ def main():
reuse_existing_ip_allowed = module.params.get('reuse_existing_ip_allowed')
try:
if network_interface_id:
address = find_address(ec2, public_ip, network_interface_id, isinstance=False)
elif instance_id:
address = find_address(ec2, public_ip, instance_id)
else:
address = False
if state == 'present':
if instance_id:
result = ensure_present(ec2, domain, address, instance_id,
reuse_existing_ip_allowed,
module.check_mode)
elif network_interface_id:
result = ensure_present(ec2, domain, address, network_interface_id,
reuse_existing_ip_allowed,
module.check_mode, isinstance=False)
else:
address = allocate_address(ec2, domain, reuse_existing_ip_allowed)
result = {'changed': True, 'public_ip': address.public_ip}
else:
if network_interface_id:
result = ensure_absent(ec2, domain, address, network_interface_id, module.check_mode, isinstance=False)
elif instance_id:
result = ensure_absent(ec2, domain, address, instance_id, module.check_mode)
else:
address = find_address(ec2, public_ip, None)
result = release_address(ec2, address, module.check_mode)
except (boto.exception.EC2ResponseError, EIPException) as e:
module.fail_json(msg=str(e))
module.exit_json(**result)
# import module snippets
from ansible.module_utils.basic import * # noqa
from ansible.module_utils.ec2 import * # noqa

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