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ansible/cloud/amazon/ec2_vpc_net.py

345 lines
12 KiB
Python

#!/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_net
short_description: configure AWS virtual private clouds
description:
- Create or terminates AWS virtual private clouds. This module has a dependency on python-boto.
version_added: "2.0"
options:
name:
description:
- The name to give your VPC. This is used in combination with the cidr_block paramater to determine if a VPC already exists.
required: yes
cidr_block:
description:
- The CIDR of the VPC
required: yes
aliases: []
tenancy:
description:
- Whether to be default or dedicated tenancy. This cannot be changed after the VPC has been created.
required: false
default: default
dns_support:
description:
- Whether to enable AWS DNS support.
required: false
default: true
dns_hostnames:
description:
- Whether to enable AWS hostname support.
required: false
default: true
dhcp_id:
description:
- the id of the DHCP options to use for this vpc
default: null
required: false
tags:
description:
- The tags you want attached to the VPC. This is independent of the name value, note if you pass a 'Name' key it would override the Name of the VPC if it's different.
default: None
required: false
state:
description:
- The state of the VPC. Either absent or present.
default: present
required: false
multi_ok:
description:
- By default the module will not create another VPC if there is another VPC with the same name and CIDR block. Specify this as true if you want duplicate VPCs created.
default: false
required: false
author: Jonathan Davila
extends_documentation_fragment: aws
'''
EXAMPLES = '''
# Create a VPC with dedicate tenancy and a couple of tags
- ec2_vpc:
name: Module_dev2
cidr_block: 170.10.0.0/16
region: us-east-1
tags:
new_vpc: ec2_vpc_module
this: works22
tenancy: dedicated
'''
import time
import sys
try:
import boto
import boto.ec2
import boto.vpc
from boto.exception import EC2ResponseError
HAS_BOTO=True
except ImportError:
HAS_BOTO=False
def boto_exception(err):
'''generic error message handler'''
if hasattr(err, 'error_message'):
error = err.error_message
elif hasattr(err, 'message'):
error = err.message
else:
error = '%s: %s' % (Exception, err)
return error
def vpc_exists(module, vpc, name, cidr_block, multi):
"""Returns True or False in regards to the existance of a VPC. When supplied
with a CIDR, it will check for matching tags to determine if it is a match
otherwise it will assume the VPC does not exist and thus return false.
"""
exists=False
matched_vpc=None
try:
matching_vpcs=vpc.get_all_vpcs(filters={'tag:Name' : name, 'cidr-block' : cidr_block})
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
if len(matching_vpcs) == 1 and not multi:
exists=True
matched_vpc=str(matching_vpcs).split(':')[1].split(']')[0]
elif len(matching_vpcs) > 1 and not multi:
module.fail_json(msg='Currently there are %d VPCs that have the same name and '
'CIDR block you specified. If you would like to create '
'the VPC anyways please pass True to the multi_ok param.' % len(matching_vpcs))
return exists, matched_vpc
def vpc_needs_update(module, vpc, vpc_id, dns_support, dns_hostnames, dhcp_id, tags):
"""This returns True or False. Intended to run after vpc_exists.
It will check all the characteristics of the parameters passed and compare them
to the active VPC. If any discrepancy is found, it will report true, meaning that
the VPC needs to be update in order to match the specified state in the params.
"""
update_dhcp=False
update_tags=False
dhcp_match=False
try:
dhcp_list=vpc.get_all_dhcp_options()
if dhcp_id is not None:
has_default=vpc.get_all_vpcs(filters={'dhcp-options-id' : 'default', 'vpc-id' : vpc_id})
for opts in dhcp_list:
if (str(opts).split(':')[1] == dhcp_id) or has_default:
dhcp_match=True
break
else:
pass
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
if not dhcp_match or (has_default and dhcp_id != 'default'):
update_dhcp=True
if dns_hostnames and dns_support == False:
module.fail_json('In order to enable DNS Hostnames you must have DNS support enabled')
else:
# Note: Boto currently doesn't currently provide an interface to ec2-describe-vpc-attribute
# which is needed in order to detect the current status of DNS options. For now we just update
# the attribute each time and is not used as a changed-factor.
try:
vpc.modify_vpc_attribute(vpc_id, enable_dns_support=dns_support)
vpc.modify_vpc_attribute(vpc_id, enable_dns_hostnames=dns_hostnames)
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
if tags:
try:
current_tags = dict((t.name, t.value) for t in vpc.get_all_tags(filters={'resource-id': vpc_id}))
if not set(tags.items()).issubset(set(current_tags.items())):
update_tags=True
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
return update_dhcp, update_tags
def update_vpc_tags(module, vpc, vpc_id, tags, name):
tags.update({'Name': name})
try:
vpc.create_tags(vpc_id, tags)
updated_tags=dict((t.name, t.value) for t in vpc.get_all_tags(filters={'resource-id': vpc_id}))
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
return updated_tags
def update_dhcp_opts(module, vpc, vpc_id, dhcp_id):
try:
vpc.associate_dhcp_options(dhcp_id, vpc_id)
dhcp_list=vpc.get_all_dhcp_options()
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
for opts in dhcp_list:
vpc_dhcp=vpc.get_all_vpcs(filters={'dhcp-options-id' : opts, 'vpc-id' : vpc_id})
matched=False
if opts == dhcp_id:
matched=True
return opts
if matched == False:
return dhcp_id
def main():
argument_spec=ec2_argument_spec()
argument_spec.update(dict(
name=dict(type='str', default=None, required=True),
cidr_block=dict(type='str', default=None, required=True),
tenancy=dict(choices=['default', 'dedicated'], default='default'),
dns_support=dict(type='bool', default=True),
dns_hostnames=dict(type='bool', default=True),
dhcp_opts_id=dict(type='str', default=None, required=False),
tags=dict(type='dict', required=False, default=None),
state=dict(choices=['present', 'absent'], default='present'),
region=dict(type='str', required=True),
multi_ok=dict(type='bool', default=False)
)
)
module = AnsibleModule(
argument_spec=argument_spec,
)
if not HAS_BOTO:
module.fail_json(msg='Boto is required for this module')
name=module.params.get('name')
cidr_block=module.params.get('cidr_block')
tenancy=module.params.get('tenancy')
dns_support=module.params.get('dns_support')
dns_hostnames=module.params.get('dns_hostnames')
dhcp_id=module.params.get('dhcp_opts_id')
tags=module.params.get('tags')
state=module.params.get('state')
multi=module.params.get('multi_ok')
changed=False
new_dhcp_opts=None
new_tags=None
update_dhcp=False
update_tags=False
region, ec2_url, aws_connect_kwargs=get_aws_connection_info(module)
try:
vpc=boto.vpc.connect_to_region(
region,
**aws_connect_kwargs
)
except boto.exception.NoAuthHandlerFound, e:
module.fail_json(msg=str(e))
already_exists, vpc_id=vpc_exists(module, vpc, name, cidr_block, multi)
if already_exists:
update_dhcp, update_tags=vpc_needs_update(module, vpc, vpc_id, dns_support, dns_hostnames, dhcp_id, tags)
if update_dhcp or update_tags:
changed=True
try:
e_tags=dict((t.name, t.value) for t in vpc.get_all_tags(filters={'resource-id': vpc_id}))
dhcp_list=vpc.get_all_dhcp_options()
has_default=vpc.get_all_vpcs(filters={'dhcp-options-id' : 'default', 'vpc-id' : vpc_id})
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
dhcp_opts=None
try:
for opts in dhcp_list:
if vpc.get_all_vpcs(filters={'dhcp-options-id' : opts, 'vpc-id' : vpc_id}):
dhcp_opts=opts
break
else:
pass
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
if not dhcp_opts and has_default:
dhcp_opts='default'
if state == 'present':
if not changed and already_exists:
module.exit_json(changed=changed, vpc_id=vpc_id)
elif changed:
if update_dhcp:
dhcp_opts=update_dhcp_opts(module, vpc, vpc_id, dhcp_id)
if update_tags:
e_tags=update_vpc_tags(module, vpc, vpc_id, tags, name)
module.exit_json(changed=changed, name=name, dhcp_options_id=dhcp_opts, tags=e_tags)
if not already_exists:
try:
vpc_id=str(vpc.create_vpc(cidr_block, instance_tenancy=tenancy)).split(':')[1]
vpc.create_tags(vpc_id, dict(Name=name))
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg=e_msg)
update_dhcp, update_tags=vpc_needs_update(module, vpc, vpc_id, dns_support, dns_hostnames, dhcp_id, tags)
if update_dhcp:
new_dhcp_opts=update_dhcp_opts(module, vpc, vpc_id, dhcp_id)
if update_tags:
new_tags=update_vpc_tags(module, vpc, vpc_id, tags, name)
module.exit_json(changed=True, name=name, vpc_id=vpc_id, dhcp_options=new_dhcp_opts, tags=new_tags)
elif state == 'absent':
if already_exists:
changed=True
try:
vpc.delete_vpc(vpc_id)
module.exit_json(changed=changed, vpc_id=vpc_id)
except Exception, e:
e_msg=boto_exception(e)
module.fail_json(msg="%s. You may want to use the ec2_vpc_subnet, ec2_vpc_igw, "
"and/or ec2_vpc_rt modules to ensure the other components are absent." % e_msg)
else:
module.exit_json(msg="VPC is absent")
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
main()