From fb82e08e73fbe9b0f5a6ce380ec705964d54c87f Mon Sep 17 00:00:00 2001 From: Peter Sprygada Date: Fri, 12 Feb 2016 17:00:50 -0500 Subject: [PATCH] initial add of iosxr_template module This adds a new module, iosxr_template, that can be used to template configurations for IOS XR devices. Templates are then loaded into the target device over cli --- network/iosxr/iosxr_template.py | 193 ++++++++++++++++++++++++++++++++ 1 file changed, 193 insertions(+) create mode 100644 network/iosxr/iosxr_template.py diff --git a/network/iosxr/iosxr_template.py b/network/iosxr/iosxr_template.py new file mode 100644 index 00000000000..33a41f80ef8 --- /dev/null +++ b/network/iosxr/iosxr_template.py @@ -0,0 +1,193 @@ +#!/usr/bin/python +# +# This file is part of Ansible +# +# Ansible 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. +# +# Ansible 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 Ansible. If not, see . +# +DOCUMENTATION = """ +--- +module: iosxr_template +version_added: "2.1" +author: "Peter sprygada (@privateip)" +short_description: Manage Cisco IOS device configurations over SSH +description: + - Manages network device configurations over SSH. This module + allows implementors to work with the device running-config. It + provides a way to push a set of commands onto a network device + by evaluting the current running-config and only pushing configuration + commands that are not already configured. The config source can + be a set of commands or a template. +extends_documentation_fragment: ios +options: + src: + description: + - The path to the config source. The source can be either a + file with config or a template that will be merged during + runtime. By default the task will first search for the source + file in role or playbook root folder in templates unless a full + path to the file is given. + required: false + default: null + force: + description: + - The force argument instructs the module not to consider the + current device running-config. When set to true, this will + cause the module to push the contents of I(src) into the device + without first checking if already configured. + required: false + default: false + choices: BOOLEANS + backup: + description: + - When this argument is configured true, the module will backup + the running-config from the node prior to making any changes. + The backup file will be written to backup_{{ hostname }} in + the root of the playbook directory. + required: false + default: false + choices: BOOLEANS + config: + description: + - The module, by default, will connect to the remote device and + retrieve the current running-config to use as a base for comparing + against the contents of source. There are times when it is not + desirable to have the task get the current running-config for + every task. The I(config) argument allows the implementer to + pass in the configuruation to use as the base config for + comparision. + required: false + default: null +""" + +EXAMPLES = """ + +- name: push a configuration onto the device + net_config: + src: config.j2 + +- name: forceable push a configuration onto the device + net_config: + src: config.j2 + force: yes + +- name: provide the base configuration for comparision + net_config: + src: candidate_config.txt + config: current_config.txt + + +""" + +RETURN = """ + +commands: + description: The set of commands that will be pushed to the remote device + returned: always + type: list + sample: [...] + +""" + +def compare(this, other): + parents = [item.text for item in this.parents] + for entry in other: + if this == entry: + return None + return this + +def expand(obj, queue): + block = [item.raw for item in obj.parents] + block.append(obj.raw) + + current_level = queue + for b in block: + if b not in current_level: + current_level[b] = collections.OrderedDict() + current_level = current_level[b] + for c in obj.children: + if c.raw not in current_level: + current_level[c.raw] = collections.OrderedDict() + +def flatten(data, obj): + for k, v in data.items(): + obj.append(k) + flatten(v, obj) + return obj + +def get_config(module): + config = module.params['config'] or dict() + if not config and not module.params['force']: + config = module.config + return config + +def main(): + """ main entry point for module execution + """ + + argument_spec = dict( + src=dict(), + force=dict(default=False, type='bool'), + backup=dict(default=False, type='bool'), + config=dict(), + ) + + mutually_exclusive = [('config', 'backup'), ('config', 'force')] + + module = get_module(argument_spec=argument_spec, + mutually_exclusive=mutually_exclusive, + supports_check_mode=True) + + result = dict(changed=False) + + candidate = module.parse_config(module.params['src']) + + contents = get_config(module) + result['_backup'] = module.config + + config = module.parse_config(contents) + + commands = collections.OrderedDict() + toplevel = [c.text for c in config] + + for line in candidate: + if line.text in ['!', '']: + continue + + if not line.parents: + if line.text not in toplevel: + expand(line, commands) + else: + item = compare(line, config) + if item: + expand(item, commands) + + commands = flatten(commands, list()) + + if commands: + if not module.check_mode: + updates = [str(c).strip() for c in commands] + response = module.configure(updates) + result['changed'] = True + + result['updates'] = commands + return module.exit_json(**result) + + +from ansible.module_utils.basic import * +from ansible.module_utils.shell import * +from ansible.module_utils.netcfg import * +from ansible.module_utils.iosxr import * +if __name__ == '__main__': + main() +