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715 lines
24 KiB
Python
715 lines
24 KiB
Python
#!/usr/bin/python
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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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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'network'}
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DOCUMENTATION = """
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---
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module: ios_vrf
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version_added: "2.3"
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author: "Peter Sprygada (@privateip)"
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short_description: Manage the collection of VRF definitions on Cisco IOS devices
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description:
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- This module provides declarative management of VRF definitions on
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Cisco IOS devices. It allows playbooks to manage individual or
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the entire VRF collection. It also supports purging VRF definitions from
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the configuration that are not explicitly defined.
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extends_documentation_fragment: ios
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notes:
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- Tested against IOS 15.6
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options:
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vrfs:
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description:
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- The set of VRF definition objects to be configured on the remote
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IOS device. Ths list entries can either be the VRF name or a hash
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of VRF definitions and attributes. This argument is mutually
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exclusive with the C(name) argument.
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name:
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description:
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- The name of the VRF definition to be managed on the remote IOS
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device. The VRF definition name is an ASCII string name used
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to uniquely identify the VRF. This argument is mutually exclusive
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with the C(vrfs) argument
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description:
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description:
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- Provides a short description of the VRF definition in the
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current active configuration. The VRF definition value accepts
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alphanumeric characters used to provide additional information
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about the VRF.
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rd:
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description:
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- The router-distinguisher value uniquely identifies the VRF to
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routing processes on the remote IOS system. The RD value takes
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the form of C(A:B) where C(A) and C(B) are both numeric values.
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interfaces:
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description:
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- Identifies the set of interfaces that
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should be configured in the VRF. Interfaces must be routed
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interfaces in order to be placed into a VRF.
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associated_interfaces:
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description:
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- This is a intent option and checks the operational state of the for given vrf C(name)
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for associated interfaces. If the value in the C(associated_interfaces) does not match with
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the operational state of vrf interfaces on device it will result in failure.
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version_added: "2.5"
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delay:
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description:
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- Time in seconds to wait before checking for the operational state on remote
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device.
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version_added: "2.4"
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default: 10
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purge:
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description:
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- Instructs the module to consider the
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VRF definition absolute. It will remove any previously configured
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VRFs on the device.
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default: false
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state:
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description:
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- Configures the state of the VRF definition
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as it relates to the device operational configuration. When set
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to I(present), the VRF should be configured in the device active
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configuration and when set to I(absent) the VRF should not be
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in the device active configuration
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default: present
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choices: ['present', 'absent']
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route_both:
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description:
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- Adds an export and import list of extended route target communities to the VRF.
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version_added: "2.5"
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route_export:
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description:
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- Adds an export list of extended route target communities to the VRF.
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version_added: "2.5"
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route_import:
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description:
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- Adds an import list of extended route target communities to the VRF.
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version_added: "2.5"
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route_both_ipv4:
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description:
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- Adds an export and import list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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route_export_ipv4:
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description:
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- Adds an export list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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route_import_ipv4:
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description:
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- Adds an import list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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route_both_ipv6:
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description:
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- Adds an export and import list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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route_export_ipv6:
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description:
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- Adds an export list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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route_import_ipv6:
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description:
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- Adds an import list of extended route target communities in address-family configuration submode to the VRF.
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version_added: "2.7"
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"""
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EXAMPLES = """
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- name: configure a vrf named management
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ios_vrf:
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name: management
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description: oob mgmt vrf
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interfaces:
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- Management1
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- name: remove a vrf named test
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ios_vrf:
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name: test
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state: absent
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- name: configure set of VRFs and purge any others
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ios_vrf:
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vrfs:
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- red
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- blue
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- green
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purge: yes
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- name: Creates a list of import RTs for the VRF with the same parameters
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ios_vrf:
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name: test_import
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rd: 1:100
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route_import:
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- 1:100
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- 3:100
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- name: Creates a list of import RTs in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_import_ipv4
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rd: 1:100
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route_import_ipv4:
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- 1:100
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- 3:100
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- name: Creates a list of import RTs in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_import_ipv6
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rd: 1:100
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route_import_ipv6:
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- 1:100
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- 3:100
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- name: Creates a list of export RTs for the VRF with the same parameters
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ios_vrf:
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name: test_export
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rd: 1:100
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route_export:
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- 1:100
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- 3:100
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- name: Creates a list of export RTs in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_export_ipv4
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rd: 1:100
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route_export_ipv4:
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- 1:100
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- 3:100
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- name: Creates a list of export RTs in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_export_ipv6
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rd: 1:100
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route_export_ipv6:
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- 1:100
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- 3:100
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- name: Creates a list of import and export route targets for the VRF with the same parameters
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ios_vrf:
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name: test_both
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rd: 1:100
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route_both:
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- 1:100
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- 3:100
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- name: Creates a list of import and export route targets in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_both_ipv4
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rd: 1:100
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route_both_ipv4:
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- 1:100
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- 3:100
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- name: Creates a list of import and export route targets in address-family configuration submode for the VRF with the same parameters
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ios_vrf:
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name: test_both_ipv6
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rd: 1:100
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route_both_ipv6:
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- 1:100
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- 3:100
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"""
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RETURN = """
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commands:
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description: The list of configuration mode commands to send to the device
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returned: always
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type: list
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sample:
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- vrf definition ansible
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- description management vrf
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- rd: 1:100
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start:
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description: The time the job started
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returned: always
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type: str
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sample: "2016-11-16 10:38:15.126146"
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end:
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description: The time the job ended
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returned: always
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type: str
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sample: "2016-11-16 10:38:25.595612"
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delta:
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description: The time elapsed to perform all operations
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returned: always
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type: str
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sample: "0:00:10.469466"
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"""
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import re
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import time
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from functools import partial
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.connection import exec_command
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from ansible.module_utils.network.ios.ios import load_config, get_config
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from ansible.module_utils.network.ios.ios import ios_argument_spec, check_args
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from ansible.module_utils.network.common.config import NetworkConfig
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from ansible.module_utils.six import iteritems
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def get_interface_type(interface):
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if interface.upper().startswith('ET'):
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return 'ethernet'
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elif interface.upper().startswith('VL'):
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return 'svi'
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elif interface.upper().startswith('LO'):
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return 'loopback'
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elif interface.upper().startswith('MG'):
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return 'management'
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elif interface.upper().startswith('MA'):
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return 'management'
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elif interface.upper().startswith('PO'):
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return 'portchannel'
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elif interface.upper().startswith('NV'):
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return 'nve'
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else:
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return 'unknown'
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def add_command_to_vrf(name, cmd, commands):
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if 'vrf definition %s' % name not in commands:
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commands.extend([
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'vrf definition %s' % name,
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'address-family ipv4', 'exit',
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'address-family ipv6', 'exit',
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])
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commands.append(cmd)
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def map_obj_to_commands(updates, module):
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commands = list()
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for update in updates:
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want, have = update
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def needs_update(want, have, x):
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if isinstance(want.get(x), list) and isinstance(have.get(x), list):
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return want.get(x) and (want.get(x) != have.get(x)) and not all(elem in have.get(x) for elem in want.get(x))
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return want.get(x) and (want.get(x) != have.get(x))
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if want['state'] == 'absent':
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commands.append('no vrf definition %s' % want['name'])
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continue
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if not have.get('state'):
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commands.extend([
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'vrf definition %s' % want['name'],
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'address-family ipv4', 'exit',
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'address-family ipv6', 'exit',
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])
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if needs_update(want, have, 'description'):
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cmd = 'description %s' % want['description']
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'rd'):
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cmd = 'rd %s' % want['rd']
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_import'):
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for route in want['route_import']:
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cmd = 'route-target import %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_export'):
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for route in want['route_export']:
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cmd = 'route-target export %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_import_ipv4'):
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cmd = 'address-family ipv4'
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add_command_to_vrf(want['name'], cmd, commands)
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for route in want['route_import_ipv4']:
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cmd = 'route-target import %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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cmd = 'exit-address-family'
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_export_ipv4'):
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cmd = 'address-family ipv4'
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add_command_to_vrf(want['name'], cmd, commands)
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for route in want['route_export_ipv4']:
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cmd = 'route-target export %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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cmd = 'exit-address-family'
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_import_ipv6'):
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cmd = 'address-family ipv6'
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add_command_to_vrf(want['name'], cmd, commands)
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for route in want['route_import_ipv6']:
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cmd = 'route-target import %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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cmd = 'exit-address-family'
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add_command_to_vrf(want['name'], cmd, commands)
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if needs_update(want, have, 'route_export_ipv6'):
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cmd = 'address-family ipv6'
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add_command_to_vrf(want['name'], cmd, commands)
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for route in want['route_export_ipv6']:
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cmd = 'route-target export %s' % route
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add_command_to_vrf(want['name'], cmd, commands)
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cmd = 'exit-address-family'
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add_command_to_vrf(want['name'], cmd, commands)
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if want['interfaces'] is not None:
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# handle the deletes
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for intf in set(have.get('interfaces', [])).difference(want['interfaces']):
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commands.extend(['interface %s' % intf,
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'no vrf forwarding %s' % want['name']])
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# handle the adds
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for intf in set(want['interfaces']).difference(have.get('interfaces', [])):
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cfg = get_config(module)
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configobj = NetworkConfig(indent=1, contents=cfg)
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children = configobj['interface %s' % intf].children
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intf_config = '\n'.join(children)
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commands.extend(['interface %s' % intf,
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'vrf forwarding %s' % want['name']])
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match = re.search('ip address .+', intf_config, re.M)
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if match:
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commands.append(match.group())
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return commands
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def parse_description(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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cfg = '\n'.join(cfg.children)
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match = re.search(r'description (.+)$', cfg, re.M)
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if match:
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return match.group(1)
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def parse_rd(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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cfg = '\n'.join(cfg.children)
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match = re.search(r'rd (.+)$', cfg, re.M)
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if match:
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return match.group(1)
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def parse_interfaces(configobj, name):
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vrf_cfg = 'vrf forwarding %s' % name
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interfaces = list()
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for intf in re.findall('^interface .+', str(configobj), re.M):
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if vrf_cfg in '\n'.join(configobj[intf].children):
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interfaces.append(intf.split(' ')[1])
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return interfaces
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def parse_import(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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cfg = '\n'.join(cfg.children)
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matches = re.findall(r'route-target\s+import\s+(.+)', cfg, re.M)
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return matches
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def parse_export(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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cfg = '\n'.join(cfg.children)
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matches = re.findall(r'route-target\s+export\s+(.+)', cfg, re.M)
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return matches
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def parse_both(configobj, name, address_family='global'):
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rd_pattern = re.compile('(?P<rd>.+:.+)')
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matches = list()
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export_match = None
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import_match = None
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if address_family == "global":
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export_match = parse_export(configobj, name)
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import_match = parse_import(configobj, name)
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elif address_family == "ipv4":
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export_match = parse_export_ipv4(configobj, name)
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import_match = parse_import_ipv4(configobj, name)
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elif address_family == "ipv6":
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export_match = parse_export_ipv6(configobj, name)
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import_match = parse_import_ipv6(configobj, name)
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if import_match and export_match:
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for ex in export_match:
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exrd = rd_pattern.search(ex)
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exrd = exrd.groupdict().get('rd')
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for im in import_match:
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imrd = rd_pattern.search(im)
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imrd = imrd.groupdict().get('rd')
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if exrd == imrd:
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matches.extend([exrd]) if exrd not in matches else None
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matches.extend([imrd]) if imrd not in matches else None
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return matches
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def parse_import_ipv4(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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try:
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subcfg = cfg['address-family ipv4']
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subcfg = '\n'.join(subcfg.children)
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matches = re.findall(r'route-target\s+import\s+(.+)', subcfg, re.M)
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return matches
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except KeyError:
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pass
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def parse_export_ipv4(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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try:
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subcfg = cfg['address-family ipv4']
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subcfg = '\n'.join(subcfg.children)
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matches = re.findall(r'route-target\s+export\s+(.+)', subcfg, re.M)
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return matches
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except KeyError:
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pass
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def parse_import_ipv6(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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try:
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subcfg = cfg['address-family ipv6']
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subcfg = '\n'.join(subcfg.children)
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matches = re.findall(r'route-target\s+import\s+(.+)', subcfg, re.M)
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return matches
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except KeyError:
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pass
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def parse_export_ipv6(configobj, name):
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cfg = configobj['vrf definition %s' % name]
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try:
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subcfg = cfg['address-family ipv6']
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subcfg = '\n'.join(subcfg.children)
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matches = re.findall(r'route-target\s+export\s+(.+)', subcfg, re.M)
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return matches
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except KeyError:
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pass
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def map_config_to_obj(module):
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config = get_config(module)
|
|
configobj = NetworkConfig(indent=1, contents=config)
|
|
match = re.findall(r'^vrf definition (\S+)', config, re.M)
|
|
if not match:
|
|
return list()
|
|
|
|
instances = list()
|
|
for item in set(match):
|
|
obj = {
|
|
'name': item,
|
|
'state': 'present',
|
|
'description': parse_description(configobj, item),
|
|
'rd': parse_rd(configobj, item),
|
|
'interfaces': parse_interfaces(configobj, item),
|
|
'route_import': parse_import(configobj, item),
|
|
'route_export': parse_export(configobj, item),
|
|
'route_both': parse_both(configobj, item),
|
|
'route_import_ipv4': parse_import_ipv4(configobj, item),
|
|
'route_export_ipv4': parse_export_ipv4(configobj, item),
|
|
'route_both_ipv4': parse_both(configobj, item, address_family='ipv4'),
|
|
'route_import_ipv6': parse_import_ipv6(configobj, item),
|
|
'route_export_ipv6': parse_export_ipv6(configobj, item),
|
|
'route_both_ipv6': parse_both(configobj, item, address_family='ipv6'),
|
|
}
|
|
instances.append(obj)
|
|
return instances
|
|
|
|
|
|
def get_param_value(key, item, module):
|
|
# if key doesn't exist in the item, get it from module.params
|
|
if not item.get(key):
|
|
value = module.params[key]
|
|
|
|
# if key does exist, do a type check on it to validate it
|
|
else:
|
|
value_type = module.argument_spec[key].get('type', 'str')
|
|
type_checker = module._CHECK_ARGUMENT_TYPES_DISPATCHER[value_type]
|
|
type_checker(item[key])
|
|
value = item[key]
|
|
|
|
# validate the param value (if validator func exists)
|
|
validator = globals().get('validate_%s' % key)
|
|
if validator:
|
|
validator(value, module)
|
|
|
|
return value
|
|
|
|
|
|
def map_params_to_obj(module):
|
|
vrfs = module.params.get('vrfs')
|
|
if not vrfs:
|
|
if not module.params['name'] and module.params['purge']:
|
|
return list()
|
|
elif not module.params['name']:
|
|
module.fail_json(msg='name is required')
|
|
collection = [{'name': module.params['name']}]
|
|
else:
|
|
collection = list()
|
|
for item in vrfs:
|
|
if not isinstance(item, dict):
|
|
collection.append({'name': item})
|
|
elif 'name' not in item:
|
|
module.fail_json(msg='name is required')
|
|
else:
|
|
collection.append(item)
|
|
|
|
objects = list()
|
|
for item in collection:
|
|
get_value = partial(get_param_value, item=item, module=module)
|
|
item['description'] = get_value('description')
|
|
item['rd'] = get_value('rd')
|
|
item['interfaces'] = get_value('interfaces')
|
|
item['state'] = get_value('state')
|
|
item['route_import'] = get_value('route_import')
|
|
item['route_export'] = get_value('route_export')
|
|
item['route_both'] = get_value('route_both')
|
|
item['route_import_ipv4'] = get_value('route_import_ipv4')
|
|
item['route_export_ipv4'] = get_value('route_export_ipv4')
|
|
item['route_both_ipv4'] = get_value('route_both_ipv4')
|
|
item['route_import_ipv6'] = get_value('route_import_ipv6')
|
|
item['route_export_ipv6'] = get_value('route_export_ipv6')
|
|
item['route_both_ipv6'] = get_value('route_both_ipv6')
|
|
both_addresses_family = ["", "_ipv6", "_ipv4"]
|
|
for address_family in both_addresses_family:
|
|
if item["route_both%s" % address_family]:
|
|
if not item["route_export%s" % address_family]:
|
|
item["route_export%s" % address_family] = list()
|
|
if not item["route_import%s" % address_family]:
|
|
item["route_import%s" % address_family] = list()
|
|
item["route_export%s" % address_family].extend(get_value("route_both%s" % address_family))
|
|
item["route_import%s" % address_family].extend(get_value("route_both%s" % address_family))
|
|
item['associated_interfaces'] = get_value('associated_interfaces')
|
|
objects.append(item)
|
|
|
|
return objects
|
|
|
|
|
|
def update_objects(want, have):
|
|
updates = list()
|
|
for entry in want:
|
|
item = next((i for i in have if i['name'] == entry['name']), None)
|
|
if all((item is None, entry['state'] == 'present')):
|
|
updates.append((entry, {}))
|
|
else:
|
|
for key, value in iteritems(entry):
|
|
if value:
|
|
try:
|
|
if isinstance(value, list):
|
|
if sorted(value) != sorted(item[key]):
|
|
if (entry, item) not in updates:
|
|
updates.append((entry, item))
|
|
elif value != item[key]:
|
|
if (entry, item) not in updates:
|
|
updates.append((entry, item))
|
|
except TypeError:
|
|
pass
|
|
return updates
|
|
|
|
|
|
def check_declarative_intent_params(want, module, result):
|
|
if module.params['associated_interfaces']:
|
|
|
|
if result['changed']:
|
|
time.sleep(module.params['delay'])
|
|
|
|
name = module.params['name']
|
|
rc, out, err = exec_command(module, 'show vrf | include {0}'.format(name))
|
|
|
|
if rc == 0:
|
|
data = out.strip().split()
|
|
# data will be empty if the vrf was just added
|
|
if not data:
|
|
return
|
|
vrf = data[0]
|
|
interface = data[-1]
|
|
|
|
for w in want:
|
|
if w['name'] == vrf:
|
|
if w.get('associated_interfaces') is None:
|
|
continue
|
|
for i in w['associated_interfaces']:
|
|
if get_interface_type(i) is not get_interface_type(interface):
|
|
module.fail_json(msg="Interface %s not configured on vrf %s" % (interface, name))
|
|
|
|
|
|
def main():
|
|
""" main entry point for module execution
|
|
"""
|
|
argument_spec = dict(
|
|
vrfs=dict(type='list'),
|
|
|
|
name=dict(),
|
|
description=dict(),
|
|
rd=dict(),
|
|
route_export=dict(type='list'),
|
|
route_import=dict(type='list'),
|
|
route_both=dict(type='list'),
|
|
route_export_ipv4=dict(type='list'),
|
|
route_import_ipv4=dict(type='list'),
|
|
route_both_ipv4=dict(type='list'),
|
|
route_export_ipv6=dict(type='list'),
|
|
route_import_ipv6=dict(type='list'),
|
|
route_both_ipv6=dict(type='list'),
|
|
|
|
|
|
interfaces=dict(type='list'),
|
|
associated_interfaces=dict(type='list'),
|
|
|
|
delay=dict(default=10, type='int'),
|
|
purge=dict(type='bool', default=False),
|
|
state=dict(default='present', choices=['present', 'absent'])
|
|
)
|
|
|
|
argument_spec.update(ios_argument_spec)
|
|
|
|
mutually_exclusive = [('name', 'vrfs')]
|
|
module = AnsibleModule(argument_spec=argument_spec,
|
|
mutually_exclusive=mutually_exclusive,
|
|
supports_check_mode=True)
|
|
|
|
result = {'changed': False}
|
|
|
|
warnings = list()
|
|
check_args(module, warnings)
|
|
result['warnings'] = warnings
|
|
|
|
want = map_params_to_obj(module)
|
|
have = map_config_to_obj(module)
|
|
commands = map_obj_to_commands(update_objects(want, have), module)
|
|
|
|
if module.params['purge']:
|
|
want_vrfs = [x['name'] for x in want]
|
|
have_vrfs = [x['name'] for x in have]
|
|
for item in set(have_vrfs).difference(want_vrfs):
|
|
cmd = 'no vrf definition %s' % item
|
|
if cmd not in commands:
|
|
commands.append(cmd)
|
|
|
|
result['commands'] = commands
|
|
|
|
if commands:
|
|
if not module.check_mode:
|
|
load_config(module, commands)
|
|
result['changed'] = True
|
|
|
|
check_declarative_intent_params(want, module, result)
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|