245 lines
7.5 KiB
Python
245 lines
7.5 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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DOCUMENTATION = """
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---
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module: ops_template
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version_added: "2.1"
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author: "Peter Sprygada (@privateip)"
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short_description: Push configuration to OpenSwitch
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description:
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- The OpenSwitch platform provides a library for pushing JSON structured
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configuration files into the current running-config. This module
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will read the current configuration from OpenSwitch and compare it
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against a provided candidate configuration. If there are changes, the
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candidate configuration is merged with the current configuration and
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pushed into OpenSwitch
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extends_documentation_fragment: openswitch
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options:
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src:
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description:
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- The path to the config source. The source can be either a
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file with config or a template that will be merged during
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runtime. By default the task will search for the source
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file in role or playbook root folder in templates directory.
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required: true
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force:
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description:
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- The force argument instructs the module to not consider the
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current devices running-config. When set to true, this will
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cause the module to push the contents of I(src) into the device
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without first checking if already configured.
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required: false
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default: false
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choices: ['yes', 'no']
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backup:
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description:
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- When this argument is configured true, the module will backup
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the running-config from the node prior to making any changes.
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The backup file will be written to backups/ in
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the root of the playbook directory.
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required: false
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default: false
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choices: ['yes', 'no']
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config:
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description:
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- The module, by default, will connect to the remote device and
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retrieve the current running-config to use as a base for comparing
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against the contents of source. There are times when it is not
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desirable to have the task get the current running-config for
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every task in a playbook. The I(config) argument allows the
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implementer to pass in the configuruation to use as the base
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config for comparision.
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required: false
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default: null
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"""
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EXAMPLES = """
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- name: set hostname with file lookup
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ops_template:
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src: ./hostname.json
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backup: yes
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remote_user: admin
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become: yes
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- name: set hostname with var
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ops_template:
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src: "{{ config }}"
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remote_user: admin
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become: yes
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"""
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RETURN = """
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updates:
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description: The list of configuration updates to be merged
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retured: always
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type: dict
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sample: {obj, obj}
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responses:
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desription: returns the responses when configuring using cli
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returned: when transport == cli
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type: list
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sample: [...]
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"""
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import copy
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def compare(this, other):
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parents = [item.text for item in this.parents]
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for entry in other:
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if this == entry:
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return None
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return this
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def expand(obj, queue):
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block = [item.raw for item in obj.parents]
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block.append(obj.raw)
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current_level = queue
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for b in block:
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if b not in current_level:
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current_level[b] = collections.OrderedDict()
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current_level = current_level[b]
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for c in obj.children:
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if c.raw not in current_level:
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current_level[c.raw] = collections.OrderedDict()
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def flatten(data, obj):
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for k, v in data.items():
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obj.append(k)
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flatten(v, obj)
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return obj
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def get_config(module):
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config = module.params['config'] or dict()
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if not config and not module.params['force']:
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config = module.config
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return config
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def sort(val):
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if isinstance(val, (list, set)):
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return sorted(val)
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return val
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def diff(this, other, path=None):
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updates = list()
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path = path or list()
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for key, value in this.items():
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if key not in other:
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other_value = other.get(key)
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updates.append((list(path), key, value, other_value))
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else:
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if isinstance(this[key], dict):
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path.append(key)
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updates.extend(diff(this[key], other[key], list(path)))
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path.pop()
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else:
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other_value = other.get(key)
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if sort(this[key]) != sort(other_value):
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updates.append((list(path), key, value, other_value))
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return updates
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def merge(changeset, config=None):
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config = config or dict()
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for path, key, value, _ in changeset:
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current_level = config
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for part in path:
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if part not in current_level:
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current_level[part] = dict()
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current_level = current_level[part]
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current_level[key] = value
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return config
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def main():
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""" main entry point for module execution
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"""
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argument_spec = dict(
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src=dict(type='str'),
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force=dict(default=False, type='bool'),
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backup=dict(default=False, type='bool'),
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config=dict(type='dict'),
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)
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mutually_exclusive = [('config', 'backup'), ('config', 'force')]
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module = get_module(argument_spec=argument_spec,
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mutually_exclusive=mutually_exclusive,
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supports_check_mode=True)
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result = dict(changed=False)
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contents = get_config(module)
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result['_backup'] = copy.deepcopy(module.config)
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if module.params['transport'] in ['ssh', 'rest']:
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config = contents
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src = module.from_json(module.params['src'])
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changeset = diff(src, config)
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candidate = merge(changeset, config)
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updates = dict()
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for path, key, new_value, old_value in changeset:
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path = '%s.%s' % ('.'.join(path), key)
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updates[path] = new_value
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result['updates'] = updates
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if changeset:
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if not module.check_mode:
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module.configure(config)
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result['changed'] = True
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else:
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config = module.parse_config(config)
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candidate = module.parse_config(module.params['src'])
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commands = collections.OrderedDict()
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toplevel = [c.text for c in config]
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for line in candidate:
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if line.text in ['!', '']:
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continue
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if not line.parents:
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if line.text not in toplevel:
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expand(line, commands)
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else:
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item = compare(line, config)
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if item:
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expand(item, commands)
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commands = flatten(commands, list())
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if commands:
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if not module.check_mode:
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commands = [str(c).strip() for c in commands]
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response = module.configure(commands)
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result['responses'] = response
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result['changed'] = True
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result['updates'] = commands
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module.exit_json(**result)
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from ansible.module_utils.basic import *
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from ansible.module_utils.urls import *
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from ansible.module_utils.netcfg import *
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from ansible.module_utils.shell import *
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from ansible.module_utils.openswitch import *
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if __name__ == '__main__':
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main()
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