openstack-ansible/playbooks/library/provider_networks
Kevin Carter d31e0f69c2 Adds new provider_networks module and reformats ml2_conf.ini
The ml2_conf.ini has been reformatted to work with the new data type
provided from the `provider_networks` module.

The new module parses and provides useful information from the
`provider_network` list as found within the base user config. The data
type has been documented within the defaults so that it can be used in
the role as stand alone, outside that of the OSAD project. The module
replaces functionality found in top of the ml2_conf.ini file that was
built using jinja2 syntax and flow control. The purpose is to allow
for more configuration possibilities while also being faster.

Closes-Bug: 1434942
Change-Id: If48267ba6f552eaf1535b8ecee6d26b2c6592b31
2015-03-24 15:07:28 +00:00

281 lines
8.8 KiB
Python

#!/usr/bin/python
# (c) 2014, Kevin Carter <kevin.carter@rackspace.com>
#
# Copyright 2014, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
DOCUMENTATION = """
---
module: provider_networks
version_added: "1.8.4"
short_description:
- Parse a list of networks and return data that Ansible can use
description:
- Parse a list of networks and return data that Ansible can use
options:
provider_networks:
description:
- List of networks to parse
required: true
is_metal:
description:
- Enable handling of on metal hosts
required: false
bind_prefix:
description:
- Add a prefix to all network interfaces.
required: false
author: Kevin Carter
"""
EXAMPLES = """
## This is what the provider_networks list should look like.
# provider_networks:
# - network:
# container_bridge: "br-mgmt"
# container_type: "veth"
# container_interface: "eth1"
# ip_from_q: "container"
# type: "raw"
# group_binds:
# - all_containers
# - hosts
# is_container_address: true
# is_ssh_address: true
# - network:
# container_bridge: "br-vxlan"
# container_type: "veth"
# container_interface: "eth10"
# ip_from_q: "tunnel"
# type: "vxlan"
# range: "1:1000"
# net_name: "vxlan"
# group_binds:
# - neutron_linuxbridge_agent
# - network:
# container_bridge: "br-vlan"
# container_type: "veth"
# container_interface: "eth12"
# host_bind_override: "eth12"
# type: "flat"
# net_name: "flat"
# group_binds:
# - neutron_linuxbridge_agent
# - network:
# container_bridge: "br-vlan"
# container_type: "veth"
# container_interface: "eth11"
# host_bind_override: "eth11"
# type: "vlan"
# range: "1:1, 101:101"
# net_name: "vlan"
# group_binds:
# - neutron_linuxbridge_agent
# - network:
# container_bridge: "br-storage"
# container_type: "veth"
# container_interface: "eth2"
# ip_from_q: "storage"
# type: "raw"
# group_binds:
# - glance_api
# - cinder_api
# - cinder_volume
# - nova_compute
# - swift_proxy
- name: Test provider networks
provider_networks:
provider_networks: "{{ provider_networks }}"
register: pndata1
- name: Test provider networks is metal
provider_networks:
provider_networks: "{{ provider_networks }}"
is_metal: true
register: pndata2
- name: Test provider networks with prfix
provider_networks:
provider_networks: "{{ provider_networks }}"
bind_prefix: "brx"
is_metal: true
register: pndata3
## Module output:
# {
# "network_flat_networks": "flat",
# "network_flat_networks_list": [
# "flat"
# ],
# "network_mappings": "flat:brx-eth12,vlan:brx-eth11",
# "network_mappings_list": [
# "flat:brx-eth12",
# "vlan:brx-eth11"
# ],
# "network_types": "vxlan,flat,vlan",
# "network_types_list": [
# "vxlan",
# "flat",
# "vlan"
# ],
# "network_vlan_ranges": "vlan:1:1,vlan:1024:1025",
# "network_vlan_ranges_list": [
# "vlan:1:1",
# "vlan:1024:1025"
# ],
# "network_vxlan_ranges": "1:1000",
# "network_vxlan_ranges_list": [
# "1:1000"
# ]
# }
"""
class ProviderNetworksParsing(object):
def __init__(self, module):
"""Generate an integer from a name.
:param module: Load the ansible module
:type module: ``object``
"""
self.module = module
self.network_vlan_ranges = list()
self.network_vxlan_ranges = list()
self.network_flat_networks = list()
self.network_mappings = list()
self.network_types = list()
def load_networks(self, provider_networks, is_metal=False,
bind_prefix=None):
"""Load the lists of network and network data types.
:param provider_networks: list of networks defined in user_config
:type provider_networks: ``list``
:param is_metal: Enable of disable handling of on metal nodes
:type is_metal: ``bol``
:param bind_prefix: Pre-interface prefix forced within the network map
:type bind_prefix: ``str``
"""
for net in provider_networks:
if net['network']['type'] == "vlan":
if "vlan" not in self.network_types:
self.network_types.append('vlan')
for vlan_range in net['network']['range'].split(','):
self.network_vlan_ranges.append(
'%s:%s' % (
net['network']['net_name'], vlan_range.strip()
)
)
elif net['network']['type'] == "vxlan":
if "vxlan" not in self.network_types:
self.network_types.append('vxlan')
self.network_vxlan_ranges.append(net['network']['range'])
elif net['network']['type'] == "flat":
if "flat" not in self.network_types:
self.network_types.append('flat')
self.network_flat_networks.append(
net['network']['net_name']
)
# Create the network mappings
if net['network']['type'] not in ['raw', 'vxlan']:
if 'net_name' in net['network']:
if is_metal:
if 'host_bind_override' in net['network']:
bind_device = net['network']['host_bind_override']
else:
bind_device = net['network']['container_bridge']
else:
bind_device = net['network']['container_interface']
if bind_prefix:
bind_device = '%s-%s' % (bind_prefix, bind_device)
self.network_mappings.append(
'%s:%s' % (
net['network']['net_name'],
bind_device
)
)
def main():
# Add in python True False
BOOLEANS.extend(['False', 'True'])
BOOLEANS_TRUE.append('True')
BOOLEANS_FALSE.append('False')
module = AnsibleModule(
argument_spec=dict(
provider_networks=dict(
type='list',
required=True
),
is_metal=dict(
choices=BOOLEANS,
default='false'
),
bind_prefix=dict(
type='str',
required=False,
default=None
)
),
supports_check_mode=False
)
try:
is_metal = module.params.get('is_metal')
if is_metal in BOOLEANS_TRUE:
module.params['is_metal'] = True
else:
module.params['is_metal'] = False
pnp = ProviderNetworksParsing(module=module)
pnp.load_networks(
provider_networks=module.params.get('provider_networks'),
is_metal=module.params.get('is_metal'),
bind_prefix=module.params.get('bind_prefix')
)
# Response dictionary, this adds commas to all list items in string
# format as well as preserves the list functionality for future data
# processing.
resp = {
'network_vlan_ranges': ','.join(pnp.network_vlan_ranges),
'network_vlan_ranges_list': pnp.network_vlan_ranges,
'network_vxlan_ranges': ','.join(pnp.network_vxlan_ranges),
'network_vxlan_ranges_list': pnp.network_vxlan_ranges,
'network_flat_networks': ','.join(pnp.network_flat_networks),
'network_flat_networks_list': pnp.network_flat_networks,
'network_mappings': ','.join(pnp.network_mappings),
'network_mappings_list': pnp.network_mappings,
'network_types': ','.join(pnp.network_types),
'network_types_list': pnp.network_types
}
module.exit_json(changed=True, **resp)
except Exception as exp:
resp = {'stderr': exp}
module.fail_json(msg='Failed Process', **resp)
# import module snippets
from ansible.module_utils.basic import *
if __name__ == '__main__':
main()