Add OpenStack Subnet module

Also deprecated old quantum_subnet module

cloud/openstack/os_subnet

@@ -0,0 +1,213 @@
+#!/usr/bin/python
+#coding: utf-8 -*-
+
+# (c) 2013, Benno Joy <benno@ansible.com>
+#
+# This module 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.
+#
+# This software 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 this software.  If not, see <http://www.gnu.org/licenses/>.
+
+try:
+    import shade
+    HAS_SHADE = True
+except ImportError:
+    HAS_SHADE = False
+
+
+DOCUMENTATION = '''
+---
+module: os_subnet
+short_description: Add/Remove subnet to an OpenStack network
+extends_documentation_fragment: openstack
+version_added: "1.10"
+description:
+   - Add or Remove a subnet to an OpenStack network
+options:
+   state:
+     description:
+        - Indicate desired state of the resource
+     choices: ['present', 'absent']
+     default: present
+   network_name:
+     description:
+        - Name of the network to which the subnet should be attached
+     required: true
+     default: None
+   name:
+     description:
+       - The name of the subnet that should be created
+     required: true
+     default: None
+   cidr:
+     description:
+        - The CIDR representation of the subnet that should be assigned to the subnet
+     required: true
+     default: None
+   ip_version:
+     description:
+        - The IP version of the subnet 4 or 6
+     required: false
+     default: 4
+   enable_dhcp:
+     description:
+        - Whether DHCP should be enabled for this subnet.
+     required: false
+     default: true
+   gateway_ip:
+     description:
+        - The ip that would be assigned to the gateway for this subnet
+     required: false
+     default: None
+   dns_nameservers:
+     description:
+        - DNS nameservers for this subnet, comma-separated
+     required: false
+     default: None
+     version_added: "1.4"
+   allocation_pool_start:
+     description:
+        - From the subnet pool the starting address from which the IP should be allocated
+     required: false
+     default: None
+   allocation_pool_end:
+     description:
+        - From the subnet pool the last IP that should be assigned to the virtual machines
+     required: false
+     default: None
+requirements: ["shade"]
+'''
+
+EXAMPLES = '''
+# Create a subnet with the specified network
+- os_subnet: state=present username=admin password=admin
+             project_name=admin
+             network_name=network1 name=net1subnet cidr=192.168.0.0/24"
+'''
+
+_os_network_id = None
+
+def _get_net_id(neutron, module):
+    kwargs = {
+        'name': module.params['network_name'],
+    }
+    try:
+        networks = neutron.list_networks(**kwargs)
+    except Exception, e:
+        module.fail_json("Error in listing neutron networks: %s" % e.message)
+    if not networks['networks']:
+            return None
+    return networks['networks'][0]['id']
+
+
+def _get_subnet_id(module, neutron):
+    global _os_network_id
+    subnet_id = None
+    _os_network_id = _get_net_id(neutron, module)
+    if not _os_network_id:
+        module.fail_json(msg = "network id of network not found.")
+    else:
+        kwargs = {
+            'name': module.params['name'],
+        }
+        try:
+            subnets = neutron.list_subnets(**kwargs)
+        except Exception, e:
+            module.fail_json( msg = " Error in getting the subnet list:%s " % e.message)
+        if not subnets['subnets']:
+            return None
+        return subnets['subnets'][0]['id']
+
+def _create_subnet(module, neutron):
+    neutron.format = 'json'
+    subnet = {
+            'name':            module.params['name'],
+            'ip_version':      module.params['ip_version'],
+            'enable_dhcp':     module.params['enable_dhcp'],
+            'gateway_ip':      module.params['gateway_ip'],
+            'dns_nameservers': module.params['dns_nameservers'],
+            'network_id':      _os_network_id,
+            'cidr':            module.params['cidr'],
+    }
+    if module.params['allocation_pool_start'] and module.params['allocation_pool_end']:
+        allocation_pools = [
+            {
+                'start' : module.params['allocation_pool_start'],
+                'end'   :  module.params['allocation_pool_end']
+            }
+        ]
+        subnet.update({'allocation_pools': allocation_pools})
+    if not module.params['gateway_ip']:
+        subnet.pop('gateway_ip')
+    if module.params['dns_nameservers']:
+        subnet['dns_nameservers'] = module.params['dns_nameservers'].split(',')
+    else:
+        subnet.pop('dns_nameservers')
+    try:
+        new_subnet = neutron.create_subnet(dict(subnet=subnet))
+    except Exception, e:
+        module.fail_json(msg = "Failure in creating subnet: %s" % e.message)
+    return new_subnet['subnet']['id']
+
+
+def _delete_subnet(module, neutron, subnet_id):
+    try:
+        neutron.delete_subnet(subnet_id)
+    except Exception, e:
+        module.fail_json( msg = "Error in deleting subnet: %s" % e.message)
+    return True
+
+
+def main():
+
+    argument_spec = openstack_full_argument_spec(
+        name                    = dict(required=True),
+        network_name            = dict(required=True),
+        cidr                    = dict(required=True),
+        ip_version              = dict(default='4', choices=['4', '6']),
+        enable_dhcp             = dict(default='true', type='bool'),
+        gateway_ip              = dict(default=None),
+        dns_nameservers         = dict(default=None),
+        allocation_pool_start   = dict(default=None),
+        allocation_pool_end     = dict(default=None),
+    )
+    module_kwargs = openstack_module_kwargs()
+    module = AnsibleModule(argument_spec, **module_kwargs)
+
+    if not HAS_SHADE:
+        module.fail_json(msg='shade is required for this module')
+
+    try:
+        cloud = shade.openstack_cloud(**module.params)
+        neutron = cloud.neutron_client
+        if module.params['state'] == 'present':
+            subnet_id = _get_subnet_id(module, neutron)
+            if not subnet_id:
+                subnet_id = _create_subnet(module, neutron)
+                module.exit_json(changed = True, result = "Created" , id = subnet_id)
+            else:
+                module.exit_json(changed = False, result = "success" , id = subnet_id)
+        else:
+            subnet_id = _get_subnet_id(module, neutron)
+            if not subnet_id:
+                module.exit_json(changed = False, result = "success")
+            else:
+                _delete_subnet(module, neutron, subnet_id)
+                module.exit_json(changed = True, result = "deleted")
+    except shade.OpenStackCloudException as e:
+        module.fail_json(msg=e.message)
+
+
+# this is magic, see lib/ansible/module_common.py
+from ansible.module_utils.basic import *
+from ansible.module_utils.openstack import *
+main()
+