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Added Command and Config modules to support Dell Networking OS10 device

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Senthil Kumar Ganesan 2016-08-29 21:10:29 -07:00 committed by Matt Clay
parent 0f4446166b
commit 90cb4710d7
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208
lib/ansible/modules/network/dnos10_command.py Normal file
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#!/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 <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = """
---
module: dnos10_command
version_added: "2.2"
author: "Senthil Kumar Ganesan (@skg_net)
short_description: Run commands on remote devices running Dell OS10
description:
- Sends arbitrary commands to an Dell OS10 node and returns the results
read from the device. This module includes an
argument that will cause the module to wait for a specific condition
before returning or timing out if the condition is not met.
- This module does not support running commands in configuration mode.
Please use M(dnos10_config) to configure Dell OS10 devices.
extends_documentation_fragment: dnos10
options:
commands:
description:
- List of commands to send to the remote dnos10 device over the
configured provider. The resulting output from the command
is returned. If the I(wait_for) argument is provided, the
module is not returned until the condition is satisfied or
the number of retries has expired.
required: true
wait_for:
description:
- List of conditions to evaluate against the output of the
command. The task will wait for each condition to be true
before moving forward. If the conditional is not true
within the configured number of retries, the task fails.
See examples.
required: false
default: null
aliases: ['waitfor']
retries:
description:
- Specifies the number of retries a command should by tried
before it is considered failed. The command is run on the
target device every retry and evaluated against the
I(wait_for) conditions.
required: false
default: 10
interval:
description:
- Configures the interval in seconds to wait between retries
of the command. If the command does not pass the specified
conditions, the interval indicates how long to wait before
trying the command again.
required: false
default: 1
"""
EXAMPLES = """
# Note: examples below use the following provider dict to handle
# transport and authentication to the node.
vars:
cli:
host: "{{ inventory_hostname }}"
username: admin
password: admin
transport: cli
tasks:
- name: run show version on remote devices
dnos10_command:
commands: show version
provider "{{ cli }}"
- name: run show version and check to see if output contains OS10
dnos10_command:
commands: show version
wait_for: result[0] contains OS10
provider "{{ cli }}"
- name: run multiple commands on remote nodes
dnos10_command:
commands:
- show version
- show interface
provider "{{ cli }}"
- name: run multiple commands and evaluate the output
dnos10_command:
commands:
- show version
- show interface
wait_for:
- result[0] contains OS10
- result[1] contains Ethernet
provider: "{{ cli }}"
"""
RETURN = """
stdout:
description: The set of responses from the commands
returned: always
type: list
sample: ['...', '...']
stdout_lines:
description: The value of stdout split into a list
returned: always
type: list
sample: [['...', '...'], ['...'], ['...']]
failed_conditions:
description: The list of conditionals that have failed
returned: failed
type: list
sample: ['...', '...']
warnings:
description: The list of warnings (if any) generated by module based on arguments
returned: always
type: list
sample: ['...', '...']
"""
from ansible.module_utils.basic import get_exception
from ansible.module_utils.netcli import CommandRunner, FailedConditionsError
from ansible.module_utils.dnos10 import NetworkModule, NetworkError
def to_lines(stdout):
for item in stdout:
if isinstance(item, basestring):
item = str(item).split('\n')
yield item
def main():
spec = dict(
commands=dict(type='list', required=True),
wait_for=dict(type='list', aliases=['waitfor']),
retries=dict(default=10, type='int'),
interval=dict(default=1, type='int')
)
module = NetworkModule(argument_spec=spec,
connect_on_load=False,
supports_check_mode=True)
commands = module.params['commands']
conditionals = module.params['wait_for'] or list()
warnings = list()
runner = CommandRunner(module)
for cmd in commands:
if module.check_mode and not cmd.startswith('show'):
warnings.append('only show commands are supported when using '
'check mode, not executing `%s`' % cmd)
else:
if cmd.startswith('conf'):
module.fail_json(msg='dnos10_command does not support running '
'config mode commands. Please use '
'dnos10_config instead')
runner.add_command(cmd)
for item in conditionals:
runner.add_conditional(item)
runner.retries = module.params['retries']
runner.interval = module.params['interval']
try:
runner.run()
except FailedConditionsError:
exc = get_exception()
module.fail_json(msg=str(exc), failed_conditions=exc.failed_conditions)
except NetworkError:
exc = get_exception()
module.fail_json(msg=str(exc))
result = dict(changed=False)
result['stdout'] = list()
for cmd in commands:
try:
output = runner.get_command(cmd)
except ValueError:
output = 'command not executed due to check_mode, see warnings'
result['stdout'].append(output)
result['warnings'] = warnings
result['stdout_lines'] = list(to_lines(result['stdout']))
module.exit_json(**result)
if __name__ == '__main__':
main()

260
lib/ansible/modules/network/dnos10_config.py Normal file
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#!/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 <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = """
---
module: dnos10_config
version_added: "2.2"
author: "Senthil Kumar Ganesan (@skg_net)
short_description: Manage Dell OS10 configuration sections
description:
- Dell OS10 configurations use a simple block indent file sytanx
for segementing configuration into sections. This module provides
an implementation for working with Dell OS10 configuration sections in
a deterministic way.
extends_documentation_fragment: dnos10
options:
lines:
description:
- The ordered set of commands that should be configured in the
section. The commands must be the exact same commands as found
in the device running-config. Be sure to note the configuration
command syntax as some commands are automatically modified by the
device config parser.
required: false
default: null
aliases: ['commands']
parents:
description:
- The ordered set of parents that uniquely identify the section
the commands should be checked against. If the parents argument
is omitted, the commands are checked against the set of top
level or global commands.
required: false
default: null
src:
description:
- Specifies the source path to the file that contains the configuration
or configuration template to load. The path to the source file can
either be the full path on the Ansible control host or a relative
path from the playbook or role root dir. This argument is mutually
exclusive with O(lines).
required: false
default: null
before:
description:
- The ordered set of commands to push on to the command stack if
a change needs to be made. This allows the playbook designer
the opportunity to perform configuration commands prior to pushing
any changes without affecting how the set of commands are matched
against the system
required: false
default: null
after:
description:
- The ordered set of commands to append to the end of the command
stack if a changed needs to be made. Just like with I(before) this
allows the playbook designer to append a set of commands to be
executed after the command set.
required: false
default: null
match:
description:
- Instructs the module on the way to perform the matching of
the set of commands against the current device config. If
match is set to I(line), commands are matched line by line. If
match is set to I(strict), command lines are matched with respect
to position. If match is set to I(exact), command lines
must be an equal match. Finally, if match is set to I(none), the
module will not attempt to compare the source configuration with
the running configuration on the remote device.
required: false
default: line
choices: ['line', 'strict', 'exact', 'none']
replace:
description:
- Instructs the module on the way to perform the configuration
on the device. If the replace argument is set to I(line) then
the modified lines are pushed to the device in configuration
mode. If the replace argument is set to I(block) then the entire
command block is pushed to the device in configuration mode if any
line is not correct
required: false
default: line
choices: ['line', 'block']
update_config:
description:
- This arugment will either cause or prevent the changed commands
from being sent to the remote device. The set to true, the
remote Dell OS10 device will be configured with the updated commands
and when set to false, the remote device will not be updated.
required: false
default: yes
choices: ['yes', 'no']
backup_config:
description:
- This argument will cause the module to create a full backup of
the current C(running-config) from the remote device before any
changes are made. The backup file is written to the C(backup)
folder in the playbook root directory. If the directory does not
exist, it is created.
required: false
default: no
choices: ['yes', 'no']
"""
EXAMPLES = """
- dnos10_config:
lines: ['hostname {{ inventory_hostname }}']
force: yes
- dnos10_config:
lines:
- 10 permit ip host 1.1.1.1 any log
- 20 permit ip host 2.2.2.2 any log
- 30 permit ip host 3.3.3.3 any log
- 40 permit ip host 4.4.4.4 any log
- 50 permit ip host 5.5.5.5 any log
parents: ['ip access-list extended test']
before: ['no ip access-list extended test']
match: exact
- dnos10_config:
lines:
- 10 permit ip host 1.1.1.1 any log
- 20 permit ip host 2.2.2.2 any log
- 30 permit ip host 3.3.3.3 any log
- 40 permit ip host 4.4.4.4 any log
parents: ['ip access-list extended test']
before: ['no ip access-list extended test']
replace: block
- dnos10_config:
commands: "{{lookup('file', 'datcenter1.txt')}}"
parents: ['ip access-list test']
before: ['no ip access-list test']
replace: block
"""
RETURN = """
updates:
description: The set of commands that will be pushed to the remote device
returned: always
type: list
sample: ['...', '...']
responses:
description: The set of responses from issuing the commands on the device
retured: when not check_mode
type: list
sample: ['...', '...']
"""
from ansible.module_utils.netcfg import NetworkConfig, dumps, ConfigLine
from ansible.module_utils.dnos10 import NetworkModule, dnos10_argument_spec
from ansible.module_utils.dnos10 import get_config, get_sublevel_config
def get_candidate(module):
candidate = NetworkConfig(indent=1)
if module.params['src']:
candidate.load(module.params['src'])
elif module.params['lines']:
parents = module.params['parents'] or list()
candidate.add(module.params['lines'], parents=parents)
return candidate
def main():
argument_spec = dict(
lines=dict(aliases=['commands'], type='list'),
parents=dict(type='list'),
src=dict(type='path'),
before=dict(type='list'),
after=dict(type='list'),
match=dict(default='line',
choices=['line', 'strict', 'exact', 'none']),
replace=dict(default='line', choices=['line', 'block']),
update_config=dict(type='bool', default=True),
backup_config=dict(type='bool', default=False)
)
argument_spec.update(dnos10_argument_spec)
mutually_exclusive = [('lines', 'src')]
module = NetworkModule(argument_spec=argument_spec,
connect_on_load=False,
mutually_exclusive=mutually_exclusive,
supports_check_mode=True)
module.check_mode = not module.params['update_config']
parents = module.params['parents'] or list()
match = module.params['match']
replace = module.params['replace']
before = module.params['before']
result = dict(changed=False, saved=False)
candidate = get_candidate(module)
if module.params['match'] != 'none':
config = get_config(module)
if parents:
contents = get_sublevel_config(config, module)
config = NetworkConfig(contents=contents, indent=1)
configobjs = candidate.difference(config, match=match, replace=replace)
else:
configobjs = candidate.items
if module.params['backup_config']:
result['__backup__'] = module.cli('show running-config')[0]
commands = list()
if configobjs:
commands = dumps(configobjs, 'commands')
commands = commands.split('\n')
if module.params['before']:
commands[:0] = module.params['before']
if module.params['after']:
commands.extend(module.params['after'])
if not module.check_mode:
response = module.config.load_config(commands)
result['responses'] = response
if module.params['save_config']:
module.config.save_config()
result['saved'] = True
result['changed'] = True
result['updates'] = commands
result['connected'] = module.connected
module.exit_json(**result)
if __name__ == '__main__':
main()