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ec2_vpc_net refactor

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reviewable/pr18780/r1
whiter 10 years ago
parent 4ee18957dc
commit 786ec1dca1
1 changed files with 137 additions and 187 deletions
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266
cloud/amazon/ec2_vpc_net.py
Unescape Escape View File

@ -17,10 +17,11 @@
DOCUMENTATION = '''
---
module: ec2_vpc_net
short_description: configure AWS virtual private clouds
short_description: Configure AWS virtual private clouds
description:
- Create or terminates AWS virtual private clouds. This module has a dependency on python-boto.
- Create or terminate AWS virtual private clouds. This module has a dependency on python-boto.
version_added: "2.0"
author: Jonathan Davila (@defionscode)
options:
name:
description:
@ -30,23 +31,25 @@ options:
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
choices: [ 'default', 'dedicated' ]
dns_support:
description:
- Whether to enable AWS DNS support.
required: false
default: true
default: yes
choices: [ 'yes', 'no' ]
dns_hostnames:
description:
- Whether to enable AWS hostname support.
required: false
default: true
dhcp_id:
default: yes
choices: [ 'yes', 'no' ]
dhcp_opts_id:
description:
- the id of the DHCP options to use for this vpc
default: null
@ -61,30 +64,32 @@ options:
- The state of the VPC. Either absent or present.
default: present
required: false
choices: [ 'present', 'absent' ]
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 = '''
# Note: These examples do not set authentication details, see the AWS Guide for details.
# Create a VPC with dedicate tenancy and a couple of tags
- ec2_vpc:
- ec2_vpc_net:
name: Module_dev2
cidr_block: 170.10.0.0/16
cidr_block: 10.10.0.0/16
region: us-east-1
tags:
new_vpc: ec2_vpc_module
this: works22
module: ec2_vpc_net
this: works
tenancy: dedicated
'''
import time
import sys
@ -92,8 +97,7 @@ try:
import boto
import boto.ec2
import boto.vpc
from boto.exception import EC2ResponseError
from boto.exception import BotoServerError
HAS_BOTO=True
except ImportError:
HAS_BOTO=False
@ -110,11 +114,10 @@ def boto_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
"""Returns True or False in regards to the existence 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:
@ -123,100 +126,56 @@ def vpc_exists(module, vpc, name, cidr_block, multi):
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:
if len(matching_vpcs) == 1:
matched_vpc = matching_vpcs[0]
elif len(matching_vpcs) > 1:
if 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))
'the VPC anyway please pass True to the multi_ok param.' % len(matching_vpcs))
return exists, matched_vpc
return 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
def update_vpc_tags(vpc, module, vpc_obj, tags, name):
try:
dhcp_list=vpc.get_all_dhcp_options()
if tags is None:
tags = dict()
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}))
current_tags = dict((t.name, t.value) for t in vpc.get_all_tags(filters={'resource-id': vpc_obj.id}))
if sorted(current_tags) != sorted(tags):
vpc.create_tags(vpc_obj.id, tags)
return True
else:
return False
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)
def update_dhcp_opts(connection, module, vpc_obj, dhcp_id):
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
if vpc_obj.dhcp_options_id != dhcp_id:
connection.associate_dhcp_options(dhcp_id, vpc_obj.id)
return True
else:
return False
def get_vpc_values(vpc_obj):
if vpc_obj is not None:
vpc_values = vpc_obj.__dict__
if "region" in vpc_values:
vpc_values.pop("region")
if "item" in vpc_values:
vpc_values.pop("item")
if "connection" in vpc_values:
vpc_values.pop("connection")
return vpc_values
else:
return None
def main():
argument_spec=ec2_argument_spec()
@ -229,7 +188,6 @@ def main():
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)
)
)
@ -239,7 +197,7 @@ def main():
)
if not HAS_BOTO:
module.fail_json(msg='Boto is required for this module')
module.fail_json(msg='boto is required for this module')
name=module.params.get('name')
cidr_block=module.params.get('cidr_block')
@ -252,91 +210,83 @@ def main():
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)
region, ec2_url, aws_connect_params = get_aws_connection_info(module)
if region:
try:
vpc=boto.vpc.connect_to_region(
region,
**aws_connect_kwargs
)
except boto.exception.NoAuthHandlerFound, e:
connection = connect_to_aws(boto.vpc, region, **aws_connect_params)
except (boto.exception.NoAuthHandlerFound, StandardError), e:
module.fail_json(msg=str(e))
else:
module.fail_json(msg="region must be specified")
if dns_hostnames and not dns_support:
module.fail_json('In order to enable DNS Hostnames you must also enable DNS support')
if state == 'present':
# Check if VPC exists
vpc_obj = vpc_exists(module, connection, name, cidr_block, multi)
already_exists, vpc_id=vpc_exists(module, vpc, name, cidr_block, multi)
if vpc_obj is None:
try:
vpc_obj = connection.create_vpc(cidr_block, instance_tenancy=tenancy)
changed = True
except BotoServerError, e:
module.fail_json(msg=e)
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:
if dhcp_id is not None:
try:
if update_dhcp_opts(connection, module, vpc_obj, dhcp_id):
changed = True
except BotoServerError, e:
module.fail_json(msg=e)
if tags is not None or name is not None:
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)
if update_vpc_tags(connection, module, vpc_obj, tags, name):
changed = True
except BotoServerError, e:
module.fail_json(msg=e)
dhcp_opts=None
# 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:
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:
connection.modify_vpc_attribute(vpc_obj.id, enable_dns_support=dns_support)
connection.modify_vpc_attribute(vpc_obj.id, enable_dns_hostnames=dns_hostnames)
except BotoServerError, 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:
# get the vpc obj again in case it has changed
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:
vpc_obj = connection.get_all_vpcs(vpc_obj.id)[0]
except BotoServerError, 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)
module.exit_json(changed=changed, vpc=get_vpc_values(vpc_obj))
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
# Check if VPC exists
vpc_obj = vpc_exists(module, connection, name, cidr_block, multi)
if vpc_obj is not None:
try:
vpc.delete_vpc(vpc_id)
module.exit_json(changed=changed, vpc_id=vpc_id)
except Exception, e:
connection.delete_vpc(vpc_obj.id)
vpc_obj = None
changed = True
except BotoServerError, 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")
"and/or ec2_vpc_route_table modules to ensure the other components are absent." % e_msg)
module.exit_json(changed=changed, vpc=get_vpc_values(vpc_obj))
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *

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