mirror of
https://github.com/thegeeklab/ansible-later.git
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316 lines
11 KiB
Python
316 lines
11 KiB
Python
#
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# (c) 2017 Red Hat Inc.
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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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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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DOCUMENTATION = """
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---
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author: Ansible Networking Team
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cliconf: eos
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short_description: Use eos cliconf to run command on eos platform
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description:
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- This eos plugin provides low level abstraction api's for
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sending and receiving CLI commands from eos network devices.
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version_added: "2.7"
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options:
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eos_use_sessions:
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type: int
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default: 1
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description:
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- Specifies if sessions should be used on remote host or not
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env:
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- name: ANSIBLE_EOS_USE_SESSIONS
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vars:
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- name: ansible_eos_use_sessions
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version_added: '2.7'
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"""
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import collections
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import json
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import time
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from ansible.errors import AnsibleConnectionFailure
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from ansible.module_utils._text import to_text
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from ansible.module_utils.network.common.utils import to_list
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from ansible.module_utils.network.common.config import NetworkConfig, dumps
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from ansible.plugins.cliconf import CliconfBase, enable_mode
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from ansible.plugins.connection.network_cli import Connection as NetworkCli
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from ansible.plugins.connection.httpapi import Connection as HttpApi
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class Cliconf(CliconfBase):
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def __init__(self, *args, **kwargs):
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super(Cliconf, self).__init__(*args, **kwargs)
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self._session_support = None
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def send_command(self, command, **kwargs):
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"""Executes a cli command and returns the results
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This method will execute the CLI command on the connection and return
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the results to the caller. The command output will be returned as a
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string
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"""
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if isinstance(self._connection, NetworkCli):
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resp = super(Cliconf, self).send_command(command, **kwargs)
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elif isinstance(self._connection, HttpApi):
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resp = self._connection.send_request(command, **kwargs)
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else:
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raise ValueError("Invalid connection type")
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return resp
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@enable_mode
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def get_config(self, source='running', format='text', flags=None):
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options_values = self.get_option_values()
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if format not in options_values['format']:
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raise ValueError("'format' value %s is invalid. Valid values are %s" % (format, ','.join(options_values['format'])))
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lookup = {'running': 'running-config', 'startup': 'startup-config'}
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if source not in lookup:
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raise ValueError("fetching configuration from %s is not supported" % source)
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cmd = 'show %s ' % lookup[source]
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if format and format is not 'text':
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cmd += '| %s ' % format
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cmd += ' '.join(to_list(flags))
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cmd = cmd.strip()
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return self.send_command(cmd)
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@enable_mode
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def edit_config(self, candidate=None, commit=True, replace=None, comment=None):
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operations = self.get_device_operations()
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self.check_edit_config_capability(operations, candidate, commit, replace, comment)
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if (commit is False) and (not self.supports_sessions):
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raise ValueError('check mode is not supported without configuration session')
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resp = {}
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session = None
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if self.supports_sessions:
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session = 'ansible_%s' % int(time.time())
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resp.update({'session': session})
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self.send_command('configure session %s' % session)
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if replace:
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self.send_command('rollback clean-config')
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else:
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self.send_command('configure')
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results = []
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requests = []
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multiline = False
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for line in to_list(candidate):
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if not isinstance(line, collections.Mapping):
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line = {'command': line}
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cmd = line['command']
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if cmd == 'end':
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continue
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elif cmd.startswith('banner') or multiline:
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multiline = True
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elif cmd == 'EOF' and multiline:
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multiline = False
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if multiline:
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line['sendonly'] = True
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if cmd != 'end' and cmd[0] != '!':
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try:
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results.append(self.send_command(**line))
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requests.append(cmd)
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except AnsibleConnectionFailure as e:
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self.discard_changes(session)
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raise AnsibleConnectionFailure(e.message)
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resp['request'] = requests
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resp['response'] = results
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if self.supports_sessions:
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out = self.send_command('show session-config diffs')
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if out:
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resp['diff'] = out.strip()
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if commit:
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self.commit()
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else:
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self.discard_changes(session)
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else:
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self.send_command('end')
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return resp
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def get(self, command, prompt=None, answer=None, sendonly=False, output=None, check_all=False):
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if output:
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command = self._get_command_with_output(command, output)
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return self.send_command(command, prompt=prompt, answer=answer, sendonly=sendonly, check_all=check_all)
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def commit(self):
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self.send_command('commit')
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def discard_changes(self, session=None):
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commands = ['end']
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if self.supports_sessions:
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# to close session gracefully execute abort in top level session prompt.
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commands.extend(['configure session %s' % session, 'abort'])
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for cmd in commands:
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self.send_command(cmd)
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def run_commands(self, commands=None, check_rc=True):
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if commands is None:
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raise ValueError("'commands' value is required")
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responses = list()
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for cmd in to_list(commands):
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if not isinstance(cmd, collections.Mapping):
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cmd = {'command': cmd}
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output = cmd.pop('output', None)
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if output:
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cmd['command'] = self._get_command_with_output(cmd['command'], output)
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try:
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out = self.send_command(**cmd)
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except AnsibleConnectionFailure as e:
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if check_rc:
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raise
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out = getattr(e, 'err', e)
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out = to_text(out, errors='surrogate_or_strict')
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if out is not None:
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try:
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out = json.loads(out)
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except ValueError:
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out = out.strip()
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responses.append(out)
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return responses
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def get_diff(self, candidate=None, running=None, diff_match='line', diff_ignore_lines=None, path=None, diff_replace='line'):
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diff = {}
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device_operations = self.get_device_operations()
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option_values = self.get_option_values()
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if candidate is None and device_operations['supports_generate_diff']:
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raise ValueError("candidate configuration is required to generate diff")
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if diff_match not in option_values['diff_match']:
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raise ValueError("'match' value %s in invalid, valid values are %s" % (diff_match, ', '.join(option_values['diff_match'])))
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if diff_replace not in option_values['diff_replace']:
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raise ValueError("'replace' value %s in invalid, valid values are %s" % (diff_replace, ', '.join(option_values['diff_replace'])))
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# prepare candidate configuration
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candidate_obj = NetworkConfig(indent=3)
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candidate_obj.load(candidate)
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if running and diff_match != 'none' and diff_replace != 'config':
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# running configuration
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running_obj = NetworkConfig(indent=3, contents=running, ignore_lines=diff_ignore_lines)
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configdiffobjs = candidate_obj.difference(running_obj, path=path, match=diff_match, replace=diff_replace)
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else:
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configdiffobjs = candidate_obj.items
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diff['config_diff'] = dumps(configdiffobjs, 'commands') if configdiffobjs else ''
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return diff
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@property
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def supports_sessions(self):
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use_session = self.get_option('eos_use_sessions')
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try:
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use_session = int(use_session)
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except ValueError:
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pass
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if not bool(use_session):
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self._session_support = False
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else:
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if self._session_support:
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return self._session_support
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response = self.get('show configuration sessions')
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self._session_support = 'error' not in response
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return self._session_support
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def get_device_info(self):
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device_info = {}
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device_info['network_os'] = 'eos'
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reply = self.get('show version | json')
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data = json.loads(reply)
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device_info['network_os_version'] = data['version']
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device_info['network_os_model'] = data['modelName']
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reply = self.get('show hostname | json')
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data = json.loads(reply)
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device_info['network_os_hostname'] = data['hostname']
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return device_info
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def get_device_operations(self):
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return {
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'supports_diff_replace': True,
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'supports_commit': True if self.supports_sessions else False,
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'supports_rollback': False,
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'supports_defaults': False,
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'supports_onbox_diff': True if self.supports_sessions else False,
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'supports_commit_comment': False,
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'supports_multiline_delimiter': False,
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'supports_diff_match': True,
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'supports_diff_ignore_lines': True,
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'supports_generate_diff': False if self.supports_sessions else True,
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'supports_replace': True if self.supports_sessions else False
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}
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def get_option_values(self):
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return {
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'format': ['text', 'json'],
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'diff_match': ['line', 'strict', 'exact', 'none'],
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'diff_replace': ['line', 'block', 'config'],
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'output': ['text', 'json']
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}
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def get_capabilities(self):
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result = {}
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rpc_list = ['commit', 'discard_changes', 'get_diff', 'run_commands', 'supports_sessions']
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result['rpc'] = self.get_base_rpc() + rpc_list
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result['device_info'] = self.get_device_info()
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result['device_operations'] = self.get_device_operations()
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result.update(self.get_option_values())
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if isinstance(self._connection, NetworkCli):
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result['network_api'] = 'cliconf'
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elif isinstance(self._connection, HttpApi):
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result['network_api'] = 'eapi'
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else:
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raise ValueError("Invalid connection type")
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return json.dumps(result)
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def _get_command_with_output(self, command, output):
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options_values = self.get_option_values()
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if output not in options_values['output']:
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raise ValueError("'output' value %s is invalid. Valid values are %s" % (output, ','.join(options_values['output'])))
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if output == 'json' and not command.endswith('| json'):
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cmd = '%s | json' % command
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else:
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cmd = command
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return cmd
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