nxos cliconf plugin refactor (#43203)

* nxos cliconf plugin refactor

Fixes #39056

*  Refactor nxos cliconf plugin as per new api definition
*  Minor changes in ios, eos, vyos cliconf plugin
*  Change nxos httpapi plugin edit_config method to be in sync with
   nxos cliconf edit_config

* Fix CI failure

* Fix unit test failure and review comment
This commit is contained in:
Ganesh Nalawade 2018-07-27 11:05:40 +05:30 committed by GitHub
parent e215f842ba
commit af3f510316
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16 changed files with 426 additions and 245 deletions

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@ -19,6 +19,7 @@
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import collections
import json
import re
@ -27,30 +28,30 @@ from itertools import chain
from ansible.errors import AnsibleConnectionFailure
from ansible.module_utils._text import to_bytes, to_text
from ansible.module_utils.connection import ConnectionError
from ansible.module_utils.network.common.config import NetworkConfig, dumps
from ansible.module_utils.network.common.utils import to_list
from ansible.plugins.cliconf import CliconfBase
from ansible.plugins.cliconf import CliconfBase, enable_mode
from ansible.plugins.connection.network_cli import Connection as NetworkCli
from ansible.plugins.connection.httpapi import Connection as HttpApi
class Cliconf(CliconfBase):
def send_command(self, command, prompt=None, answer=None, sendonly=False, newline=True, prompt_retry_check=False):
def __init__(self, *args, **kwargs):
super(Cliconf, self).__init__(*args, **kwargs)
def send_command(self, command, **kwargs):
"""Executes a cli command and returns the results
This method will execute the CLI command on the connection and return
the results to the caller. The command output will be returned as a
string
"""
kwargs = {'command': to_bytes(command), 'sendonly': sendonly,
'newline': newline, 'prompt_retry_check': prompt_retry_check}
if prompt is not None:
kwargs['prompt'] = to_bytes(prompt)
if answer is not None:
kwargs['answer'] = to_bytes(answer)
if isinstance(self._connection, NetworkCli):
resp = self._connection.send(**kwargs)
else:
resp = super(Cliconf, self).send_command(command, **kwargs)
elif isinstance(self._connection, HttpApi):
resp = self._connection.send_request(command, **kwargs)
else:
raise ValueError("Invalid connection type")
return resp
def get_device_info(self):
@ -101,66 +102,169 @@ class Cliconf(CliconfBase):
return device_info
def get_config(self, source='running', format='text', flags=None):
def get_diff(self, candidate=None, running=None, diff_match='line', diff_ignore_lines=None, path=None, diff_replace='line'):
diff = {}
device_operations = self.get_device_operations()
option_values = self.get_option_values()
if candidate is None and device_operations['supports_generate_diff']:
raise ValueError("candidate configuration is required to generate diff")
if diff_match not in option_values['diff_match']:
raise ValueError("'match' value %s in invalid, valid values are %s" % (diff_match, ', '.join(option_values['diff_match'])))
if diff_replace not in option_values['diff_replace']:
raise ValueError("'replace' value %s in invalid, valid values are %s" % (diff_replace, ', '.join(option_values['diff_replace'])))
# prepare candidate configuration
candidate_obj = NetworkConfig(indent=2)
candidate_obj.load(candidate)
if running and diff_match != 'none' and diff_replace != 'config':
# running configuration
running_obj = NetworkConfig(indent=2, contents=running, ignore_lines=diff_ignore_lines)
configdiffobjs = candidate_obj.difference(running_obj, path=path, match=diff_match, replace=diff_replace)
else:
configdiffobjs = candidate_obj.items
diff['config_diff'] = dumps(configdiffobjs, 'commands') if configdiffobjs else ''
return diff
def get_config(self, source='running', format='text', filter=None):
options_values = self.get_option_values()
if format not in options_values['format']:
raise ValueError("'format' value %s is invalid. Valid values are %s" % (format, ','.join(options_values['format'])))
lookup = {'running': 'running-config', 'startup': 'startup-config'}
if source not in lookup:
return self.invalid_params("fetching configuration from %s is not supported" % source)
cmd = 'show {0} '.format(lookup[source])
if flags:
cmd += ' '.join(flags)
if format and format is not 'text':
cmd += '| %s ' % format
if filter:
cmd += ' '.join(to_list(filter))
cmd = cmd.strip()
return self.send_command(cmd)
def edit_config(self, command):
responses = []
for cmd in chain(['configure'], to_list(command), ['end']):
responses.append(self.send_command(cmd))
resp = responses[1:-1]
return json.dumps(resp)
def edit_config(self, candidate=None, commit=True, replace=None, comment=None):
resp = {}
operations = self.get_device_operations()
self.check_edit_config_capabiltiy(operations, candidate, commit, replace, comment)
results = []
requests = []
def get(self, command, prompt=None, answer=None, sendonly=False):
if replace:
candidate = 'config replace {0}'.format(replace)
if commit:
self.send_command('configure terminal')
for line in to_list(candidate):
if not isinstance(line, collections.Mapping):
line = {'command': line}
cmd = line['command']
if cmd != 'end':
results.append(self.send_command(**line))
requests.append(cmd)
self.send_command('end')
else:
raise ValueError('check mode is not supported')
resp['request'] = requests
resp['response'] = results
return resp
def get(self, command, prompt=None, answer=None, sendonly=False, output=None):
if output:
command = self._get_command_with_output(command, output)
return self.send_command(command, prompt=prompt, answer=answer, sendonly=sendonly)
def get_capabilities(self):
result = {}
result['rpc'] = self.get_base_rpc()
result['device_info'] = self.get_device_info()
if isinstance(self._connection, NetworkCli):
result['network_api'] = 'cliconf'
else:
result['network_api'] = 'nxapi'
return json.dumps(result)
def run_commands(self, commands=None, check_rc=True):
if commands is None:
raise ValueError("'commands' value is required")
# Migrated from module_utils
def run_commands(self, commands, check_rc=True):
"""Run list of commands on remote device and return results
"""
responses = list()
for cmd in to_list(commands):
if not isinstance(cmd, collections.Mapping):
cmd = {'command': cmd}
for item in to_list(commands):
if item['output'] == 'json' and not item['command'].endswith('| json'):
cmd = '%s | json' % item['command']
elif item['output'] == 'text' and item['command'].endswith('| json'):
cmd = item['command'].rsplit('|', 1)[0]
else:
cmd = item['command']
output = cmd.pop('output', None)
if output:
cmd['command'] = self._get_command_with_output(cmd['command'], output)
try:
out = self.get(cmd)
out = self.send_command(**cmd)
except AnsibleConnectionFailure as e:
if check_rc:
raise
out = getattr(e, 'err', e)
try:
out = to_text(out, errors='surrogate_or_strict').strip()
except UnicodeError:
raise ConnectionError(msg=u'Failed to decode output from %s: %s' % (cmd, to_text(out)))
if out is not None:
try:
out = to_text(out, errors='surrogate_or_strict').strip()
except UnicodeError:
raise ConnectionError(msg=u'Failed to decode output from %s: %s' % (cmd, to_text(out)))
try:
out = json.loads(out)
except ValueError:
pass
try:
out = json.loads(out)
except ValueError:
out = to_text(out, errors='surrogate_or_strict').strip()
responses.append(out)
responses.append(out)
return responses
def get_device_operations(self):
return {
'supports_diff_replace': True,
'supports_commit': False,
'supports_rollback': False,
'supports_defaults': True,
'supports_onbox_diff': False,
'supports_commit_comment': False,
'supports_multiline_delimiter': False,
'supports_diff_match': True,
'supports_diff_ignore_lines': True,
'supports_generate_diff': True,
'supports_replace': True
}
def get_option_values(self):
return {
'format': ['text', 'json'],
'diff_match': ['line', 'strict', 'exact', 'none'],
'diff_replace': ['line', 'block', 'config'],
'output': ['text', 'json']
}
def get_capabilities(self):
result = {}
result['rpc'] = self.get_base_rpc()
result['device_info'] = self.get_device_info()
result.update(self.get_option_values())
if isinstance(self._connection, NetworkCli):
result['network_api'] = 'cliconf'
elif isinstance(self._connection, HttpApi):
result['network_api'] = 'nxapi'
else:
raise ValueError("Invalid connection type")
return json.dumps(result)
def _get_command_with_output(self, command, output):
options_values = self.get_option_values()
if output not in options_values['output']:
raise ValueError("'output' value %s is invalid. Valid values are %s" % (output, ','.join(options_values['output'])))
if output == 'json' and not command.endswith('| json'):
cmd = '%s | json' % command
elif output == 'text' and command.endswith('| json'):
cmd = command.rsplit('|', 1)[0]
else:
cmd = command
return cmd