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Manage AWS Nat Gateways

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* Create an AWS Nat Gateway.
* Delete an AWS Nat Gateway.
* If Nat Gateway exist in subnet and the option is passed to not create one, it will then return the Nat Gateway object.
This commit is contained in:
Allen Sanabria 2016-03-21 06:07:04 -07:00 committed by Matt Clay
parent c1fd6c6388
commit 0d7d778c82
1 changed files with 930 additions and 0 deletions
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lib/ansible/modules/extras/cloud/amazon/ec2_vpc_nat_gateway.py Normal file
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#!/usr/bin/python
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: ec2_vpc_nat_gateway
short_description: Manage AWS VPC NAT Gateways
description:
- Ensure the state of AWS VPC NAT Gateways based on their id, allocation and subnet ids.
version_added: "2.1"
requirements: [boto3, botocore]
options:
state:
description:
- Ensure NAT Gateway is present or absent
required: false
default: "present"
choices: ["present", "absent"]
nat_gateway_id:
description:
- The id AWS dynamically allocates to the NAT Gateway on creation.
This is required when the absent option is present.
required: false
default: None
subnet_id:
description:
- The id of the subnet to create the NAT Gateway in. This is required
with the present option.
required: false
default: None
allocation_id:
description:
- The id of the elastic IP allocation. If this is not passed and the
eip_address is not passed. An EIP is generated for this Nat Gateway
required: false
default: None
eip_address:
description:
- The elasti ip address of the EIP you want attached to this Nat Gateway.
If this is not passed and the allocation_id is not passed.
An EIP is generated for this Nat Gateway
required: false
if_exist_do_not_create:
description:
- if a Nat Gateway exists already in the subnet_id, then do not create a new one.
required: false
default: false
release_eip:
description:
- Deallocate the EIP from the VPC.
- Option is only valid with the absent state.
required: false
default: true
wait:
description:
- Wait for operation to complete before returning
required: false
default: true
wait_timeout:
description:
- How many seconds to wait for an operation to complete before timing out
required: false
default: 300
client_token:
description:
- Optional unique token to be used during create to ensure idempotency.
When specifying this option, ensure you specify the eip_address parameter
as well otherwise any subsequent runs will fail.
required: false
author:
- "Allen Sanabria (@linuxdynasty)"
- "Jon Hadfield (@jonhadfield)"
- "Karen Cheng(@Etherdaemon)"
extends_documentation_fragment:
- aws
- ec2
'''
EXAMPLES = '''
# Note: These examples do not set authentication details, see the AWS Guide for details.
- name: Create new nat gateway with client token
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
eip_address: 52.1.1.1
region: ap-southeast-2
client_token: abcd-12345678
register: new_nat_gateway
- name: Create new nat gateway allocation-id
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
allocation_id: eipalloc-12345678
region: ap-southeast-2
register: new_nat_gateway
- name: Create new nat gateway with when condition
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
eip_address: 52.1.1.1
region: ap-southeast-2
register: new_nat_gateway
when: existing_nat_gateways.result == []
- name: Create new nat gateway and wait for available status
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
eip_address: 52.1.1.1
wait: yes
region: ap-southeast-2
register: new_nat_gateway
- name: Create new nat gateway and allocate new eip
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
wait: yes
region: ap-southeast-2
register: new_nat_gateway
- name: Create new nat gateway and allocate new eip if a nat gateway does not yet exist in the subnet.
ec2_vpc_nat_gateway:
state: present
subnet_id: subnet-12345678
wait: yes
region: ap-southeast-2
if_exist_do_not_create: true
register: new_nat_gateway
- name: Delete nat gateway using discovered nat gateways from facts module
ec2_vpc_nat_gateway:
state: absent
region: ap-southeast-2
wait: yes
nat_gateway_id: "{{ item.NatGatewayId }}"
release_eip: yes
register: delete_nat_gateway_result
with_items: "{{ gateways_to_remove.result }}"
- name: Delete nat gateway and wait for deleted status
ec2_vpc_nat_gateway:
state: absent
nat_gateway_id: nat-12345678
wait: yes
wait_timeout: 500
region: ap-southeast-2
- name: Delete nat gateway and release EIP
ec2_vpc_nat_gateway:
state: absent
nat_gateway_id: nat-12345678
release_eip: yes
region: ap-southeast-2
'''
RETURN = '''
create_time:
description: The ISO 8601 date time formatin UTC.
returned: In all cases.
type: string
sample: "2016-03-05T05:19:20.282000+00:00'"
nat_gateway_id:
description: id of the VPC NAT Gateway
returned: In all cases.
type: string
sample: "nat-0d1e3a878585988f8"
subnet_id:
description: id of the Subnet
returned: In all cases.
type: string
sample: "subnet-12345"
state:
description: The current state of the Nat Gateway.
returned: In all cases.
type: string
sample: "available"
vpc_id:
description: id of the VPC.
returned: In all cases.
type: string
sample: "vpc-12345"
nat_gateway_addresses:
description: List of dictionairies containing the public_ip, network_interface_id, private_ip, and allocation_id.
returned: In all cases.
type: string
sample: [
{
'public_ip': '52.52.52.52',
'network_interface_id': 'eni-12345',
'private_ip': '10.0.0.100',
'allocation_id': 'eipalloc-12345'
}
]
'''
try:
import botocore
import boto3
HAS_BOTO3 = True
except ImportError:
HAS_BOTO3 = False
import time
import datetime
def convert_to_lower(data):
"""Convert all uppercase keys in dict with lowercase_
Args:
data (dict): Dictionary with keys that have upper cases in them
Example.. NatGatewayAddresses == nat_gateway_addresses
if a val is of type datetime.datetime, it will be converted to
the ISO 8601
Basic Usage:
>>> test = {'NatGatewaysAddresses': []}
>>> test = convert_to_lower(test)
{
'nat_gateways_addresses': []
}
Returns:
Dictionary
"""
results = dict()
for key, val in data.items():
key = re.sub('([A-Z]{1})', r'_\1', key).lower()[1:]
if isinstance(val, datetime.datetime):
results[key] = val.isoformat()
else:
results[key] = val
return results
def formatted_nat_gw_output(data):
"""Format the results of NatGateways into lowercase with underscores.
Args:
data (list): List of dictionaries with keys that have upper cases in
them. Example.. NatGatewayAddresses == nat_gateway_addresses
if a val is of type datetime.datetime, it will be converted to
the ISO 8601
Basic Usage:
>>> test = [
{
'VpcId': 'vpc-12345',
'State': 'available',
'NatGatewayId': 'nat-0b2f9f2ac3f51a653',
'SubnetId': 'subnet-12345',
'NatGatewayAddresses': [
{
'PublicIp': '52.52.52.52',
'NetworkInterfaceId': 'eni-12345',
'AllocationId': 'eipalloc-12345',
'PrivateIp': '10.0.0.100'
}
],
'CreateTime': datetime.datetime(2016, 3, 5, 5, 19, 20, 282000, tzinfo=tzutc())
}
]
>>> test = formatted_nat_gw_output(test)
[
{
'nat_gateway_id': 'nat-0b2f9f2ac3f51a653',
'subnet_id': 'subnet-12345',
'nat_gateway_addresses': [
{
'public_ip': '52.52.52.52',
'network_interface_id': 'eni-12345',
'private_ip': '10.0.0.100',
'allocation_id': 'eipalloc-12345'
}
],
'state': 'available',
'create_time': '2016-03-05T05:19:20.282000+00:00',
'vpc_id': 'vpc-12345'
}
]
Returns:
List
"""
results = list()
for gw in data:
output = dict()
ng_addresses = gw.pop('NatGatewayAddresses')
output = convert_to_lower(gw)
output['nat_gateway_addresses'] = []
for address in ng_addresses:
gw_data = convert_to_lower(address)
output['nat_gateway_addresses'].append(gw_data)
results.append(output)
return results
def get_nat_gateways(client, subnet_id=None, nat_gateway_id=None):
"""Retrieve a list of NAT Gateways
Args:
client (botocore.client.EC2): Boto3 client
Kwargs:
subnet_id (str): The subnet_id the nat resides in.
nat_gateway_id (str): The Amazon nat id.
Basic Usage:
>>> client = boto3.client('ec2')
>>> subnet_id = 'subnet-w4t12897'
>>> get_nat_gateways(client, subnet_id)
[
true,
"",
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
Returns:
Tuple (bool, str, list)
"""
params = dict()
err_msg = ""
gateways_retrieved = False
if nat_gateway_id:
params['NatGatewayIds'] = [nat_gateway_id]
else:
params['Filter'] = [
{
'Name': 'subnet-id',
'Values': [subnet_id]
}
]
try:
gateways = client.describe_nat_gateways(**params)['NatGateways']
existing_gateways = formatted_nat_gw_output(gateways)
gateways_retrieved = True
except botocore.exceptions.ClientError as e:
err_msg = str(e)
return gateways_retrieved, err_msg, existing_gateways
def wait_for_status(client, wait_timeout, nat_gateway_id, status):
"""Wait for the Nat Gateway to reach a status
Args:
client (botocore.client.EC2): Boto3 client
wait_timeout (int): Number of seconds to wait, until this timeout is reached.
nat_gateway_id (str): The Amazon nat id.
status (str): The status to wait for.
examples. status=available, status=deleted
Basic Usage:
>>> client = boto3.client('ec2')
>>> subnet_id = 'subnet-w4t12897'
>>> allocation_id = 'eipalloc-36014da3'
>>> wait_for_status(client, subnet_id, allocation_id)
[
true,
"",
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
]
Returns:
Tuple (bool, str, list)
"""
polling_increment_secs = 5
wait_timeout = time.time() + wait_timeout
status_achieved = False
nat_gateway = list()
err_msg = ""
while wait_timeout > time.time():
try:
gws_retrieved, err_msg, nat_gateway = (
get_nat_gateways(client, nat_gateway_id=nat_gateway_id)
)
if gws_retrieved and nat_gateway:
if nat_gateway[0].get('state') == status:
status_achieved = True
break
elif nat_gateway[0].get('state') == 'failed':
err_msg = nat_gateway[0].get('failure_message')
break
else:
time.sleep(polling_increment_secs)
except botocore.exceptions.ClientError as e:
err_msg = str(e)
if not status_achieved:
err_msg = "Wait time out reached, while waiting for results"
return status_achieved, err_msg, nat_gateway
def gateway_in_subnet_exists(client, subnet_id, allocation_id=None):
"""Retrieve all NAT Gateways for a subnet.
Args:
subnet_id (str): The subnet_id the nat resides in.
Kwargs:
allocation_id (str): The eip Amazon identifier.
default = None
Basic Usage:
>>> client = boto3.client('ec2')
>>> subnet_id = 'subnet-w4t12897'
>>> allocation_id = 'eipalloc-36014da3'
>>> gateway_in_subnet_exists(client, subnet_id, allocation_id)
(
[
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
],
False
)
Returns:
Tuple (list, bool)
"""
allocation_id_exists = False
gateways = []
gws_retrieved, _, gws = get_nat_gateways(client, subnet_id)
if not gws_retrieved:
return gateways, allocation_id_exists
for gw in gws:
for address in gw['nat_gateway_addresses']:
if gw.get('state') == 'available' or gw.get('state') == 'pending':
if allocation_id:
if address.get('allocation_id') == allocation_id:
allocation_id_exists = True
gateways.append(gw)
else:
gateways.append(gw)
return gateways, allocation_id_exists
def get_eip_allocation_id_by_address(client, eip_address, check_mode=False):
"""Release an EIP from your EIP Pool
Args:
client (botocore.client.EC2): Boto3 client
eip_address (str): The Elastic IP Address of the EIP.
Kwargs:
check_mode (bool): if set to true, do not run anything and
falsify the results.
Basic Usage:
>>> client = boto3.client('ec2')
>>> eip_address = '52.87.29.36'
>>> get_eip_allocation_id_by_address(client, eip_address)
'eipalloc-36014da3'
Returns:
Tuple (str, str)
"""
params = {
'PublicIps': [eip_address]
}
allocation_id = None
err_msg = ""
if check_mode:
return "eipalloc-123456", err_msg
try:
allocation = client.describe_addresses(**params)['Addresses'][0]
if not allocation.get('Domain') != 'vpc':
err_msg = (
"EIP provided is a non-VPC EIP, please allocate a VPC scoped EIP"
)
else:
allocation_id = allocation.get('AllocationId')
except botocore.exceptions.ClientError as e:
err_msg = str(e)
return allocation_id, err_msg
def allocate_eip_address(client, check_mode=False):
"""Release an EIP from your EIP Pool
Args:
client (botocore.client.EC2): Boto3 client
Kwargs:
check_mode (bool): if set to true, do not run anything and
falsify the results.
Basic Usage:
>>> client = boto3.client('ec2')
>>> allocate_eip_address(client)
True
Returns:
Tuple (bool, str)
"""
if check_mode:
return True, "eipalloc-123456"
ip_allocated = False
params = {
'Domain': 'vpc'
}
try:
new_eip = client.allocate_address(**params)
ip_allocated = True
except botocore.exceptions.ClientError:
pass
return ip_allocated, new_eip['AllocationId']
def release_address(client, allocation_id, check_mode=False):
"""Release an EIP from your EIP Pool
Args:
client (botocore.client.EC2): Boto3 client
allocation_id (str): The eip Amazon identifier.
Kwargs:
check_mode (bool): if set to true, do not run anything and
falsify the results.
Basic Usage:
>>> client = boto3.client('ec2')
>>> allocation_id = "eipalloc-123456"
>>> release_address(client, allocation_id)
True
Returns:
Boolean
"""
if check_mode:
return True
ip_released = False
params = {
'AllocationId': allocation_id,
}
try:
client.release_address(**params)
ip_released = True
except botocore.exceptions.ClientError:
pass
return ip_released
def create(client, subnet_id, allocation_id, client_token=None,
wait=False, wait_timeout=0, if_exist_do_not_create=False):
"""Create an Amazon NAT Gateway.
Args:
client (botocore.client.EC2): Boto3 client
subnet_id (str): The subnet_id the nat resides in.
allocation_id (str): The eip Amazon identifier.
Kwargs:
if_exist_do_not_create (bool): if a nat gateway already exists in this
subnet, than do not create another one.
default = False
wait (bool): Wait for the nat to be in the deleted state before returning.
default = False
wait_timeout (int): Number of seconds to wait, until this timeout is reached.
default = 0
client_token (str):
default = None
Basic Usage:
>>> client = boto3.client('ec2')
>>> subnet_id = 'subnet-w4t12897'
>>> allocation_id = 'eipalloc-36014da3'
>>> create(client, subnet_id, allocation_id, if_exist_do_not_create=True, wait=True, wait_timeout=500)
[
true,
"",
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
]
Returns:
Tuple (bool, str, list)
"""
params = {
'SubnetId': subnet_id,
'AllocationId': allocation_id
}
request_time = datetime.datetime.utcnow()
changed = False
token_provided = False
err_msg = ""
if client_token:
token_provided = True
params['ClientToken'] = client_token
try:
result = client.create_nat_gateway(**params)["NatGateway"]
changed = True
create_time = result['CreateTime'].replace(tzinfo=None)
if token_provided and (request_time > create_time):
changed = False
elif wait:
status_achieved, err_msg, result = (
wait_for_status(
client, wait_timeout, result['NatGatewayId'], 'available'
)
)
except botocore.exceptions.ClientError as e:
if "IdempotentParameterMismatch" in e.message:
err_msg = (
'NAT Gateway does not support update and token has already been provided'
)
else:
err_msg = str(e)
return changed, err_msg, result
def pre_create(client, subnet_id, allocation_id=None, eip_address=None,
if_exist_do_not_create=False, wait=False, wait_timeout=0,
client_token=None):
"""Create an Amazon NAT Gateway.
Args:
client (botocore.client.EC2): Boto3 client
subnet_id (str): The subnet_id the nat resides in.
Kwargs:
allocation_id (str): The eip Amazon identifier.
default = None
eip_address (str): The Elastic IP Address of the EIP.
default = None
if_exist_do_not_create (bool): if a nat gateway already exists in this
subnet, than do not create another one.
default = False
wait (bool): Wait for the nat to be in the deleted state before returning.
default = False
wait_timeout (int): Number of seconds to wait, until this timeout is reached.
default = 0
client_token (str):
default = None
Basic Usage:
>>> client = boto3.client('ec2')
>>> subnet_id = 'subnet-w4t12897'
>>> allocation_id = 'eipalloc-36014da3'
>>> pre_create(client, subnet_id, allocation_id, if_exist_do_not_create=True, wait=True, wait_timeout=500)
[
true,
"",
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
]
Returns:
Tuple (bool, str, list)
"""
changed = False
err_msg = ""
results = list()
if not allocation_id and not eip_address:
existing_gateways, allocation_id_exists = (
gateway_in_subnet_exists(client, subnet_id)
)
if len(existing_gateways) > 0 and if_exist_do_not_create:
results = existing_gateways
return changed, err_msg, results
else:
_, allocation_id = allocate_eip_address(client)
elif eip_address or allocation_id:
if eip_address and not allocation_id:
allocation_id = get_eip_allocation_id_by_address(client)
existing_gateways, allocation_id_exists = (
gateway_in_subnet_exists(client, subnet_id, allocation_id)
)
if len(existing_gateways) > 0 and (allocation_id_exists or if_exist_do_not_create):
results = existing_gateways
return changed, err_msg, results
changed, err_msg, results = create(
client, subnet_id, allocation_id, client_token,
wait, wait_timeout,if_exist_do_not_create
)
return changed, err_msg, results
def remove(client, nat_gateway_id, wait=False, wait_timeout=0, release_eip=False):
"""Delete an Amazon NAT Gateway.
Args:
client (botocore.client.EC2): Boto3 client
nat_gateway_id (str): The Amazon nat id.
Kwargs:
wait (bool): Wait for the nat to be in the deleted state before returning.
wait_timeout (int): Number of seconds to wait, until this timeout is reached.
release_eip (bool): Once the nat has been deleted, you can deallocate the eip from the vpc.
Basic Usage:
>>> client = boto3.client('ec2')
>>> nat_gw_id = 'nat-03835afb6e31df79b'
>>> remove(client, nat_gw_id, wait=True, wait_timeout=500, release_eip=True)
[
true,
"",
{
"nat_gateway_id": "nat-03835afb6e31df79b",
"subnet_id": "subnet-w4t12897",
"nat_gateway_addresses": [
{
"public_ip": "52.87.29.36",
"network_interface_id": "eni-5579742d",
"private_ip": "10.0.0.102",
"allocation_id": "eipalloc-36014da3"
}
],
"state": "deleted",
"create_time": "2016-03-05T00:33:21.209000+00:00",
"delete_time": "2016-03-05T00:36:37.329000+00:00",
"vpc_id": "vpc-w68571b5"
}
]
Returns:
Tuple (bool, str, list)
"""
params = {
'NatGatewayId': nat_gateway_id
}
changed = False
err_msg = ""
results = list()
try:
exist, _, gw = get_nat_gateways(client, nat_gateway_id=nat_gateway_id)
if exist and len(gw) == 1:
results = gw[0]
result = client.delete_nat_gateway(**params)
result = convert_to_lower(result)
allocation_id = (
results['nat_gateway_addresses'][0]['allocation_id']
)
changed = True
except botocore.exceptions.ClientError as e:
err_msg = str(e)
if wait and not err_msg:
status_achieved, err_msg, results = (
wait_for_status(client, wait_timeout, nat_gateway_id, 'deleted')
)
if release_eip:
eip_released = release_address(client, allocation_id)
if not eip_released:
err_msg = "Failed to release eip %s".format(allocation_id)
return changed, err_msg, results
def main():
argument_spec = ec2_argument_spec()
argument_spec.update(dict(
subnet_id=dict(),
eip_address=dict(),
allocation_id=dict(),
if_exist_do_not_create=dict(type='bool', default=False),
state=dict(default='present', choices=['present', 'absent']),
wait=dict(type='bool', default=True),
wait_timeout=dict(type='int', default=320, required=False),
release_eip=dict(type='bool', default=False),
nat_gateway_id=dict(),
client_token=dict(),
)
)
module = AnsibleModule(
argument_spec=argument_spec,
supports_check_mode=True,
mutually_exclusive=[
['allocation_id', 'eip_address']
]
)
# Validate Requirements
if not HAS_BOTO3:
module.fail_json(msg='botocore/boto3 is required.')
state = module.params.get('state').lower()
check_mode = module.check_mode
subnet_id = module.params.get('subnet_id')
allocation_id = module.params.get('allocation_id')
eip_address = module.params.get('eip_address')
nat_gateway_id = module.params.get('nat_gateway_id')
wait = module.params.get('wait')
wait_timeout = module.params.get('wait_timeout')
release_eip = module.params.get('release_eip')
client_token = module.params.get('client_token')
if_exist_do_not_create = module.params.get('if_exist_do_not_create')
try:
region, ec2_url, aws_connect_kwargs = (
get_aws_connection_info(module, boto3=True)
)
client = (
boto3_conn(
module, conn_type='client', resource='ec2',
region=region, endpoint=ec2_url, **aws_connect_kwargs
)
)
except botocore.exceptions.ClientError, e:
module.fail_json(msg="Boto3 Client Error - " + str(e.msg))
changed = False
err_msg = None
#Ensure resource is present
if state == 'present':
if not subnet_id:
module.fail_json(msg='subnet_id is required for creation')
elif check_mode:
changed = True
results = 'Would have created NAT Gateway if not in check mode'
else:
changed, err_msg, results = (
pre_create(
client, subnet_id, allocation_id, eip_address,
if_exist_do_not_create, wait, wait_timeout,
client_token
)
)
else:
if not nat_gateway_id:
module.fail_json(msg='nat_gateway_id is required for removal')
elif check_mode:
changed = True
results = 'Would have deleted NAT Gateway if not in check mode'
else:
changed, err_msg, results = (
remove(client, nat_gateway_id, wait, wait_timeout, release_eip)
)
if err_msg:
module.fail_json(msg=err_msg)
else:
module.exit_json(changed=changed, **results[0])
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
if __name__ == '__main__':
main()