pn_ospf (New Module) (#4736)
* Add pn_ospf module * remove type from the options block
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amitsi
Matt Clay
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4ecab1e094
commit
d5d0949958
1 changed files with 289 additions and 0 deletions
289
lib/ansible/modules/network/netvisor/pn_ospf.py
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289
lib/ansible/modules/network/netvisor/pn_ospf.py
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#!/usr/bin/python
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""" PN-CLI vrouter-ospf-add/remove """
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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#
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import shlex
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DOCUMENTATION = """
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---
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module: pn_ospf
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author: "Pluribus Networks (@amitsi)"
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version_added: "2.2"
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version: 1.0
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short_description: CLI command to add/remove ospf protocol to a vRouter.
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description:
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- Execute vrouter-ospf-add, vrouter-ospf-remove command.
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- This command adds/removes Open Shortest Path First(OSPF) routing
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protocol to a virtual router(vRouter) service.
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options:
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pn_cliusername:
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description:
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- Provide login username if user is not root.
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required: False
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pn_clipassword:
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description:
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- Provide login password if user is not root.
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required: False
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pn_cliswitch:
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description:
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- Target switch to run the CLI on.
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required: False
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state:
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description:
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- Assert the state of the ospf. Use 'present' to add ospf
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and 'absent' to remove ospf.
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required: True
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default: present
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choices: ['present', 'absent']
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pn_vrouter_name:
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description:
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- Specify the name of the vRouter.
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required: True
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pn_network_ip:
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description:
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- Specify the network IP (IPv4 or IPv6) address.
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required: True
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pn_ospf_area:
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description:
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- Stub area number for the configuration. Required for vrouter-ospf-add.
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"""
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EXAMPLES = """
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- name: "Add OSPF to vrouter"
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pn_ospf:
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state: present
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pn_vrouter_name: name-string
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pn_network_ip: 192.168.11.2/24
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pn_ospf_area: 1.0.0.0
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- name: "Remove OSPF from vrouter"
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pn_ospf:
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state: absent
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pn_vrouter_name: name-string
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"""
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RETURN = """
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command:
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description: The CLI command run on the target node(s).
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stdout:
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description: The set of responses from the ospf command.
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returned: always
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type: list
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stderr:
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description: The set of error responses from the ospf command.
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returned: on error
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type: list
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changed:
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description: Indicates whether the CLI caused changes on the target.
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returned: always
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type: bool
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"""
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VROUTER_EXISTS = None
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NETWORK_EXISTS = None
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def pn_cli(module):
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"""
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This method is to generate the cli portion to launch the Netvisor cli.
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It parses the username, password, switch parameters from module.
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:param module: The Ansible module to fetch username, password and switch
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:return: returns the cli string for further processing
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"""
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username = module.params['pn_cliusername']
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password = module.params['pn_clipassword']
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cliswitch = module.params['pn_cliswitch']
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if username and password:
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cli = '/usr/bin/cli --quiet --user %s:%s ' % (username, password)
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else:
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cli = '/usr/bin/cli --quiet '
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if cliswitch == 'local':
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cli += ' switch-local '
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else:
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cli += ' switch ' + cliswitch
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return cli
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def check_cli(module, cli):
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"""
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This method checks if vRouter exists on the target node.
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This method also checks for idempotency using the vrouter-ospf-show command.
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If the given vRouter exists, return VROUTER_EXISTS as True else False.
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If an OSPF network with the given ip exists on the given vRouter,
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return NETWORK_EXISTS as True else False.
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:param module: The Ansible module to fetch input parameters
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:param cli: The CLI string
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:return Global Booleans: VROUTER_EXISTS, NETWORK_EXISTS
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"""
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vrouter_name = module.params['pn_vrouter_name']
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network_ip = module.params['pn_network_ip']
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# Global flags
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global VROUTER_EXISTS, NETWORK_EXISTS
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# Check for vRouter
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check_vrouter = cli + ' vrouter-show format name no-show-headers '
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check_vrouter = shlex.split(check_vrouter)
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out = module.run_command(check_vrouter)[1]
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out = out.split()
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if vrouter_name in out:
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VROUTER_EXISTS = True
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else:
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VROUTER_EXISTS = False
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# Check for OSPF networks
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show = cli + ' vrouter-ospf-show vrouter-name %s ' % vrouter_name
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show += 'format network no-show-headers'
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show = shlex.split(show)
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out = module.run_command(show)[1]
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out = out.split()
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if network_ip in out:
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NETWORK_EXISTS = True
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else:
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NETWORK_EXISTS = False
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def run_cli(module, cli):
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"""
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This method executes the cli command on the target node(s) and returns the
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output. The module then exits based on the output.
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:param cli: the complete cli string to be executed on the target node(s).
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:param module: The Ansible module to fetch command
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"""
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cliswitch = module.params['pn_cliswitch']
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state = module.params['state']
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command = get_command_from_state(state)
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cmd = shlex.split(cli)
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result, out, err = module.run_command(cmd)
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print_cli = cli.split(cliswitch)[1]
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# Response in JSON format
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if result != 0:
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module.exit_json(
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command=print_cli,
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stderr=err.strip(),
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msg="%s operation failed" % command,
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changed=False
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)
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if out:
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module.exit_json(
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command=print_cli,
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stdout=out.strip(),
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msg="%s operation completed" % command,
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changed=True
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)
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else:
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module.exit_json(
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command=print_cli,
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msg="%s operation completed" % command,
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changed=True
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)
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def get_command_from_state(state):
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"""
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This method gets appropriate command name for the state specified. It
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returns the command name for the specified state.
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:param state: The state for which the respective command name is required.
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"""
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command = None
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if state == 'present':
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command = 'vrouter-ospf-add'
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if state == 'absent':
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command = 'vrouter-ospf-remove'
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return command
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def main():
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""" This section is for arguments parsing """
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module = AnsibleModule(
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argument_spec=dict(
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pn_cliusername=dict(required=False, type='str'),
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pn_clipassword=dict(required=False, type='str', no_log=True),
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pn_cliswitch=dict(required=False, type='str', default='local'),
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state=dict(type='str', default='present', choices=['present',
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'absent']),
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pn_vrouter_name=dict(required=True, type='str'),
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pn_network_ip=dict(required=True, type='str'),
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pn_ospf_area=dict(type='str')
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),
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required_if=(
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['state', 'present',
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['pn_network_ip', 'pn_ospf_area']],
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['state', 'absent', ['pn_network_ip']]
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)
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)
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# Accessing the arguments
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state = module.params['state']
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vrouter_name = module.params['pn_vrouter_name']
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network_ip = module.params['pn_network_ip']
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ospf_area = module.params['pn_ospf_area']
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command = get_command_from_state(state)
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# Building the CLI command string
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cli = pn_cli(module)
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check_cli(module, cli)
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if state == 'present':
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if VROUTER_EXISTS is False:
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module.exit_json(
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skipped=True,
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msg='vRouter %s does not exist' % vrouter_name
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)
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if NETWORK_EXISTS is True:
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module.exit_json(
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skipped=True,
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msg=('OSPF with network ip %s already exists on %s'
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% (network_ip, vrouter_name))
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)
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cli += (' %s vrouter-name %s network %s ospf-area %s'
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% (command, vrouter_name, network_ip, ospf_area))
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if state == 'absent':
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if VROUTER_EXISTS is False:
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module.exit_json(
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skipped=True,
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msg='vRouter %s does not exist' % vrouter_name
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)
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if NETWORK_EXISTS is False:
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module.exit_json(
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skipped=True,
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msg=('OSPF with network ip %s already exists on %s'
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% (network_ip, vrouter_name))
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)
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cli += (' %s vrouter-name %s network %s'
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% (command, vrouter_name, network_ip))
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run_cli(module, cli)
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# AnsibleModule boilerplate
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from ansible.module_utils.basic import AnsibleModule
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if __name__ == '__main__':
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main()
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