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307 lines
11 KiB
Python
307 lines
11 KiB
Python
#!/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': '1.0',
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'status': ['preview'],
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'supported_by': 'curated'}
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DOCUMENTATION = '''
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---
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module: azure_rm_subnet
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version_added: "2.1"
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short_description: Manage Azure subnets.
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description:
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- Create, update or delete a subnet within a given virtual network. Allows setting and updating the address
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prefix CIDR, which must be valid within the context of the virtual network. Use the azure_rm_networkinterface
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module to associate interfaces with the subnet and assign specific IP addresses.
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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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name:
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description:
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- Name of the subnet.
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required: true
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address_prefix_cidr:
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description:
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- CIDR defining the IPv4 address space of the subnet. Must be valid within the context of the
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virtual network.
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required: true
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aliases:
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- address_prefix
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security_group_name:
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description:
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- Name of an existing security group with which to associate the subnet.
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required: false
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default: null
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aliases:
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- security_group
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state:
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description:
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- Assert the state of the subnet. Use 'present' to create or update a subnet and
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'absent' to delete a subnet.
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required: false
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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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virtual_network_name:
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description:
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- Name of an existing virtual network with which the subnet is or will be associated.
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required: true
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aliases:
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- virtual_network
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extends_documentation_fragment:
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- azure
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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 subnet
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azure_rm_subnet:
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name: foobar
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virtual_network_name: My_Virtual_Network
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resource_group: Testing
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address_prefix_cidr: "10.1.0.0/24"
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- name: Delete a subnet
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azure_rm_subnet:
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name: foobar
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virtual_network_name: My_Virtual_Network
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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 subnet.
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returned: success
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type: complex
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contains:
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address_prefix:
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description: IP address CIDR.
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type: str
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example: "10.1.0.0/16"
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id:
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description: Subnet resource path.
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type: str
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example: "/subscriptions/XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX/resourceGroups/Testing/providers/Microsoft.Network/virtualNetworks/My_Virtual_Network/subnets/foobar"
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name:
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description: Subnet name.
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type: str
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example: "foobar"
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network_security_group:
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type: complex
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contains:
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id:
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description: Security group resource identifier.
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type: str
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example: "/subscriptions/XXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXX/resourceGroups/Testing/providers/Microsoft.Network/networkSecurityGroups/secgroupfoo"
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name:
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description: Name of the security group.
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type: str
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example: "secgroupfoo"
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provisioning_state:
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description: Success or failure of the provisioning event.
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type: str
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example: "Succeeded"
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''' # NOQA
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from ansible.module_utils.azure_rm_common import AzureRMModuleBase, CIDR_PATTERN, azure_id_to_dict
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try:
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from msrestazure.azure_exceptions import CloudError
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from azure.mgmt.network.models import Subnet, NetworkSecurityGroup
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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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def subnet_to_dict(subnet):
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result = dict(
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id=subnet.id,
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name=subnet.name,
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provisioning_state=subnet.provisioning_state,
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address_prefix=subnet.address_prefix,
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network_security_group=dict(),
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)
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if subnet.network_security_group:
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id_keys = azure_id_to_dict(subnet.network_security_group.id)
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result['network_security_group']['id'] = subnet.network_security_group.id
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result['network_security_group']['name'] = id_keys['networkSecurityGroups']
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return result
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class AzureRMSubnet(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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virtual_network_name=dict(type='str', required=True, aliases=['virtual_network']),
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address_prefix_cidr=dict(type='str', aliases=['address_prefix']),
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security_group_name=dict(type='str', aliases=['security_group']),
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)
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required_if = [
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('state', 'present', ['address_prefix_cidr'])
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]
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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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self.resource_group = None
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self.name = None
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self.state = None
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self.virtual_etwork_name = None
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self.address_prefix_cidr = None
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self.security_group_name = None
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super(AzureRMSubnet, self).__init__(self.module_arg_spec,
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supports_check_mode=True,
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required_if=required_if)
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def exec_module(self, **kwargs):
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nsg = None
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subnet = None
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for key in self.module_arg_spec:
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setattr(self, key, kwargs[key])
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if self.state == 'present' and not CIDR_PATTERN.match(self.address_prefix_cidr):
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self.fail("Invalid address_prefix_cidr value {0}".format(self.address_prefix_cidr))
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if self.security_group_name:
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nsg = self.get_security_group(self.security_group_name)
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results = dict()
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changed = False
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try:
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self.log('Fetching subnet {0}'.format(self.name))
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subnet = self.network_client.subnets.get(self.resource_group,
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self.virtual_network_name,
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self.name)
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self.check_provisioning_state(subnet, self.state)
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results = subnet_to_dict(subnet)
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if self.state == 'present':
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if self.address_prefix_cidr:
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if results['address_prefix'] != self.address_prefix_cidr:
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self.log("CHANGED: subnet {0} address_prefix_cidr".format(self.name))
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changed = True
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results['address_prefix'] = self.address_prefix_cidr
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if self.security_group_name:
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if results['network_security_group'].get('id') != nsg.id:
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self.log("CHANGED: subnet {0} network security group".format(self.name))
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changed = True
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results['network_security_group']['id'] = nsg.id
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results['network_security_group']['name'] = nsg.name
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elif self.state == 'absent':
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changed = True
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except CloudError:
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# the subnet does not exist
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if self.state == 'present':
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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 not self.check_mode:
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if self.state == 'present' and changed:
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if not subnet:
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# create new subnet
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self.log('Creating subnet {0}'.format(self.name))
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subnet = Subnet(
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address_prefix=self.address_prefix_cidr
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)
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if nsg:
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subnet.network_security_group = NetworkSecurityGroup(id=nsg.id,
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location=nsg.location,
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resource_guid=nsg.resource_guid)
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else:
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# update subnet
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self.log('Updating subnet {0}'.format(self.name))
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subnet = Subnet(
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address_prefix=results['address_prefix']
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)
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if results['network_security_group'].get('id'):
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nsg = self.get_security_group(results['network_security_group']['name'])
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subnet.network_security_group = NetworkSecurityGroup(id=nsg.id,
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location=nsg.location,
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resource_guid=nsg.resource_guid)
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self.results['state'] = self.create_or_update_subnet(subnet)
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elif self.state == 'absent':
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# delete subnet
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self.delete_subnet()
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# the delete does not actually return anything. if no exception, then we'll assume
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# it worked.
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self.results['state']['status'] = 'Deleted'
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return self.results
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def create_or_update_subnet(self, subnet):
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try:
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poller = self.network_client.subnets.create_or_update(self.resource_group,
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self.virtual_network_name,
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self.name,
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subnet)
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new_subnet = self.get_poller_result(poller)
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except Exception as exc:
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self.fail("Error creating or updating subnet {0} - {1}".format(self.name, str(exc)))
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self.check_provisioning_state(new_subnet)
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return subnet_to_dict(new_subnet)
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def delete_subnet(self):
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self.log('Deleting subnet {0}'.format(self.name))
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try:
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poller = self.network_client.subnets.delete(self.resource_group,
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self.virtual_network_name,
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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 subnet {0} - {1}".format(self.name, str(exc)))
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return result
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def get_security_group(self, name):
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self.log("Fetching security group {0}".format(name))
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nsg = None
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try:
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nsg = self.network_client.network_security_groups.get(self.resource_group, name)
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except Exception as exc:
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self.fail("Error: fetching network security group {0} - {1}.".format(name, str(exc)))
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return nsg
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def main():
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AzureRMSubnet()
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if __name__ == '__main__':
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main()
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