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350 lines
13 KiB
Python
350 lines
13 KiB
Python
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#!/usr/bin/python
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#
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# Copyright (c) 2016 Matt Davis, <mdavis@ansible.com>
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# Chris Houseknecht, <house@redhat.com>
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#
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'certified'}
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DOCUMENTATION = '''
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---
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module: azure_rm_virtualnetwork
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version_added: "2.1"
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short_description: Manage Azure virtual networks.
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description:
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- Create, update or delete a virtual networks. Allows setting and updating the available IPv4 address ranges
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and setting custom DNS servers. Use the azure_rm_subnet module to associate subnets with a virtual network.
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options:
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resource_group:
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description:
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- name of resource group.
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required: true
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address_prefixes_cidr:
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description:
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- List of IPv4 address ranges where each is formatted using CIDR notation. Required when creating
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a new virtual network or using purge_address_prefixes.
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aliases:
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- address_prefixes
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dns_servers:
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description:
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- Custom list of DNS servers. Maximum length of two. The first server in the list will be treated
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as the Primary server. This is an explicit list. Existing DNS servers will be replaced with the
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specified list. Use the purge_dns_servers option to remove all custom DNS servers and revert to
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default Azure servers.
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location:
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description:
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- Valid azure location. Defaults to location of the resource group.
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name:
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description:
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- name of the virtual network.
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required: true
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purge_address_prefixes:
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description:
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- Use with state present to remove any existing address_prefixes.
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type: bool
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default: 'no'
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aliases:
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- purge
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purge_dns_servers:
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description:
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- Use with state present to remove existing DNS servers, reverting to default Azure servers. Mutually
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exclusive with dns_servers.
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type: bool
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default: 'no'
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state:
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description:
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- Assert the state of the virtual network. Use 'present' to create or update and
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'absent' to delete.
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default: present
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choices:
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- absent
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- present
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extends_documentation_fragment:
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- azure
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- azure_tags
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author:
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- "Chris Houseknecht (@chouseknecht)"
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- "Matt Davis (@nitzmahone)"
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'''
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EXAMPLES = '''
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- name: Create a virtual network
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azure_rm_virtualnetwork:
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name: foobar
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resource_group: Testing
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address_prefixes_cidr:
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- "10.1.0.0/16"
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- "172.100.0.0/16"
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dns_servers:
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- "127.0.0.1"
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- "127.0.0.2"
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tags:
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testing: testing
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delete: on-exit
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- name: Delete a virtual network
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azure_rm_virtualnetwork:
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name: foobar
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resource_group: Testing
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state: absent
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'''
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RETURN = '''
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state:
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description: Current state of the virtual network.
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returned: always
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type: dict
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sample: {
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"address_prefixes": [
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"10.1.0.0/16",
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"172.100.0.0/16"
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],
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"dns_servers": [
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"127.0.0.1",
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"127.0.0.3"
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],
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"etag": 'W/"0712e87c-f02f-4bb3-8b9e-2da0390a3886"',
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"id": "/subscriptions/XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX/resourceGroups/Testing/providers/Microsoft.Network/virtualNetworks/my_test_network",
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"location": "eastus",
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"name": "my_test_network",
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"provisioning_state": "Succeeded",
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"tags": null,
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"type": "Microsoft.Network/virtualNetworks"
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}
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'''
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try:
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from msrestazure.azure_exceptions import CloudError
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except ImportError:
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# This is handled in azure_rm_common
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pass
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from ansible.module_utils.azure_rm_common import AzureRMModuleBase, CIDR_PATTERN
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def virtual_network_to_dict(vnet):
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'''
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Convert a virtual network object to a dict.
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:param vnet: VirtualNet object
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:return: dict
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'''
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results = dict(
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id=vnet.id,
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name=vnet.name,
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location=vnet.location,
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type=vnet.type,
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tags=vnet.tags,
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provisioning_state=vnet.provisioning_state,
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etag=vnet.etag
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)
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if vnet.dhcp_options and len(vnet.dhcp_options.dns_servers) > 0:
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results['dns_servers'] = []
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for server in vnet.dhcp_options.dns_servers:
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results['dns_servers'].append(server)
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if vnet.address_space and len(vnet.address_space.address_prefixes) > 0:
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results['address_prefixes'] = []
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for space in vnet.address_space.address_prefixes:
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results['address_prefixes'].append(space)
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return results
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class AzureRMVirtualNetwork(AzureRMModuleBase):
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def __init__(self):
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self.module_arg_spec = dict(
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resource_group=dict(type='str', required=True),
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name=dict(type='str', required=True),
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state=dict(type='str', default='present', choices=['present', 'absent']),
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location=dict(type='str'),
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address_prefixes_cidr=dict(type='list', aliases=['address_prefixes']),
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dns_servers=dict(type='list',),
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purge_address_prefixes=dict(type='bool', default=False, aliases=['purge']),
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purge_dns_servers=dict(type='bool', default=False),
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)
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mutually_exclusive = [
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('dns_servers', 'purge_dns_servers')
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]
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required_if = [
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('purge_address_prefixes', True, ['address_prefixes_cidr'])
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]
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self.resource_group = None
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self.name = None
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self.state = None
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self.location = None
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self.address_prefixes_cidr = None
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self.purge_address_prefixes = None
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self.dns_servers = None
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self.purge_dns_servers = None
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self.results = dict(
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changed=False,
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state=dict()
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)
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super(AzureRMVirtualNetwork, self).__init__(self.module_arg_spec,
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mutually_exclusive=mutually_exclusive,
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required_if=required_if,
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supports_check_mode=True)
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def exec_module(self, **kwargs):
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for key in list(self.module_arg_spec.keys()) + ['tags']:
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setattr(self, key, kwargs[key])
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self.results['check_mode'] = self.check_mode
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resource_group = self.get_resource_group(self.resource_group)
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if not self.location:
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# Set default location
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self.location = resource_group.location
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if self.state == 'present' and self.purge_address_prefixes:
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for prefix in self.address_prefixes_cidr:
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if not CIDR_PATTERN.match(prefix):
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self.fail("Parameter error: invalid address prefix value {0}".format(prefix))
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if self.dns_servers and len(self.dns_servers) > 2:
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self.fail("Parameter error: You can provide a maximum of 2 DNS servers.")
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changed = False
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results = dict()
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try:
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self.log('Fetching vnet {0}'.format(self.name))
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vnet = self.network_client.virtual_networks.get(self.resource_group, self.name)
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results = virtual_network_to_dict(vnet)
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self.log('Vnet exists {0}'.format(self.name))
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self.log(results, pretty_print=True)
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self.check_provisioning_state(vnet, self.state)
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if self.state == 'present':
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if self.address_prefixes_cidr:
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existing_address_prefix_set = set(vnet.address_space.address_prefixes)
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requested_address_prefix_set = set(self.address_prefixes_cidr)
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missing_prefixes = requested_address_prefix_set - existing_address_prefix_set
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extra_prefixes = existing_address_prefix_set - requested_address_prefix_set
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if len(missing_prefixes) > 0:
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self.log('CHANGED: there are missing address_prefixes')
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changed = True
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if not self.purge_address_prefixes:
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# add the missing prefixes
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for prefix in missing_prefixes:
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results['address_prefixes'].append(prefix)
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if len(extra_prefixes) > 0 and self.purge_address_prefixes:
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self.log('CHANGED: there are address_prefixes to purge')
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changed = True
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# replace existing address prefixes with requested set
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results['address_prefixes'] = self.address_prefixes_cidr
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update_tags, results['tags'] = self.update_tags(results['tags'])
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if update_tags:
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changed = True
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if self.dns_servers:
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existing_dns_set = set(vnet.dhcp_options.dns_servers) if vnet.dhcp_options else set([])
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requested_dns_set = set(self.dns_servers)
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if existing_dns_set != requested_dns_set:
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self.log('CHANGED: replacing DNS servers')
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changed = True
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results['dns_servers'] = self.dns_servers
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if self.purge_dns_servers and vnet.dhcp_options and len(vnet.dhcp_options.dns_servers) > 0:
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self.log('CHANGED: purging existing DNS servers')
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changed = True
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results['dns_servers'] = []
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elif self.state == 'absent':
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self.log("CHANGED: vnet exists but requested state is 'absent'")
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changed = True
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except CloudError:
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self.log('Vnet {0} does not exist'.format(self.name))
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if self.state == 'present':
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self.log("CHANGED: vnet {0} does not exist but requested state is 'present'".format(self.name))
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changed = True
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self.results['changed'] = changed
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self.results['state'] = results
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if self.check_mode:
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return self.results
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if changed:
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if self.state == 'present':
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if not results:
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# create a new virtual network
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self.log("Create virtual network {0}".format(self.name))
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if not self.address_prefixes_cidr:
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self.fail('Parameter error: address_prefixes_cidr required when creating a virtual network')
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vnet = self.network_models.VirtualNetwork(
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location=self.location,
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address_space=self.network_models.AddressSpace(
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address_prefixes=self.address_prefixes_cidr
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)
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)
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if self.dns_servers:
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vnet.dhcp_options = self.network_models.DhcpOptions(
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dns_servers=self.dns_servers
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)
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if self.tags:
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vnet.tags = self.tags
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self.results['state'] = self.create_or_update_vnet(vnet)
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else:
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# update existing virtual network
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self.log("Update virtual network {0}".format(self.name))
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vnet = self.network_models.VirtualNetwork(
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location=results['location'],
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address_space=self.network_models.AddressSpace(
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address_prefixes=results['address_prefixes']
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),
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tags=results['tags']
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)
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if results.get('dns_servers'):
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vnet.dhcp_options = self.network_models.DhcpOptions(
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dns_servers=results['dns_servers']
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)
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self.results['state'] = self.create_or_update_vnet(vnet)
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elif self.state == 'absent':
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self.delete_virtual_network()
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self.results['state']['status'] = 'Deleted'
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return self.results
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def create_or_update_vnet(self, vnet):
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try:
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poller = self.network_client.virtual_networks.create_or_update(self.resource_group, self.name, vnet)
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new_vnet = self.get_poller_result(poller)
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except Exception as exc:
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self.fail("Error creating or updating virtual network {0} - {1}".format(self.name, str(exc)))
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return virtual_network_to_dict(new_vnet)
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def delete_virtual_network(self):
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try:
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poller = self.network_client.virtual_networks.delete(self.resource_group, self.name)
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result = self.get_poller_result(poller)
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except Exception as exc:
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self.fail("Error deleting virtual network {0} - {1}".format(self.name, str(exc)))
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return result
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def main():
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AzureRMVirtualNetwork()
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if __name__ == '__main__':
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main()
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