Add module to run puppet
There is a growing pattern for using ansible to orchestrate runs of existing puppet code. For instance, the OpenStack Infrastructure team started using ansible for this very reason. It also turns out that successfully running puppet and interpreting success or failure is harder than you'd expect, thus warranting a module and not just a shell command. This is ported in from http://git.openstack.org/cgit/openstack-infra/ansible-puppet
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Monty Taylor
Matt Clay
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186
lib/ansible/modules/extras/system/puppet.py
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lib/ansible/modules/extras/system/puppet.py
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#!/usr/bin/python
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# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
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#
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# This module 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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# This software 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 this software. If not, see <http://www.gnu.org/licenses/>.
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import json
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import os
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import pipes
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DOCUMENTATION = '''
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---
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module: puppet
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short_description: Runs puppet
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description:
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- Runs I(puppet) agent or apply in a reliable manner
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version_added: "2.0"
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options:
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timeout:
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description:
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- How long to wait for I(puppet) to finish.
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required: false
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default: 30m
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puppetmaster:
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description:
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- The hostname of the puppetmaster to contact. Must have this or manifest
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required: false
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default: None
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manifest:
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desciption:
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- Path to the manifest file to run puppet apply on. Must have this or puppetmaster
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required: false
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default: None
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show_diff:
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description:
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- Should puppet return diffs of changes applied. Defaults to off to avoid leaking secret changes by default.
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required: false
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default: no
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choices: [ "yes", "no" ]
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facts:
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description:
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- A dict of values to pass in as persistent external facter facts
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required: false
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default: None
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facter_basename:
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desciption:
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- Basename of the facter output file
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required: false
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default: ansible
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requirements: [ puppet ]
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author: Monty Taylor
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'''
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EXAMPLES = '''
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# Run puppet and fail if anything goes wrong
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- puppet
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# Run puppet and timeout in 5 minutes
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- puppet: timeout=5m
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'''
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def _get_facter_dir():
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if os.getuid() == 0:
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return '/etc/facter/facts.d'
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else:
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return os.path.expanduser('~/.facter/facts.d')
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def _write_structured_data(basedir, basename, data):
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if not os.path.exists(basedir):
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os.makedirs(basedir)
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file_path = os.path.join(basedir, "{0}.json".format(basename))
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with os.fdopen(
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os.open(file_path, os.O_CREAT | os.O_WRONLY, 0o600),
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'w') as out_file:
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out_file.write(json.dumps(data).encode('utf8'))
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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timeout=dict(default="30m"),
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puppetmaster=dict(required=False, default=None),
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manifest=dict(required=False, default=None),
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show_diff=dict(
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default=False, aliases=['show-diff'], type='bool'),
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facts=dict(default=None),
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facter_basename=dict(default='ansible'),
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),
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required_one_of=[
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('puppetmaster', 'manifest'),
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],
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)
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p = module.params
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global PUPPET_CMD
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PUPPET_CMD = module.get_bin_path("puppet", False)
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if not PUPPET_CMD:
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module.fail_json(
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msg="Could not find puppet. Please ensure it is installed.")
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if p['manifest']:
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if not os.path.exists(p['manifest']):
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module.fail_json(
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msg="Manifest file %(manifest)s not found." % dict(
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manifest=p['manifest'])
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# Check if puppet is disabled here
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if p['puppetmaster']:
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rc, stdout, stderr = module.run_command(
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PUPPET_CMD + "config print agent_disabled_lockfile")
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if os.path.exists(stdout.strip()):
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module.fail_json(
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msg="Puppet agent is administratively disabled.", disabled=True)
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elif rc != 0:
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module.fail_json(
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msg="Puppet agent state could not be determined.")
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if module.params['facts']:
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_write_structured_data(
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_get_facter_dir(),
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module.params['facter_basename'],
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module.params['facts'])
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base_cmd = "timeout -s 9 %(timeout)s %(puppet_cmd)s" % dict(
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timeout=pipes.quote(p['timeout']), puppet_cmd=PUPPET_CMD)
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if p['puppetmaster']:
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cmd = ("%(base_cmd) agent --onetime"
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" --server %(puppetmaster)s"
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" --ignorecache --no-daemonize --no-usecacheonfailure --no-splay"
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" --detailed-exitcodes --verbose") % dict(
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base_cmd=base_cmd,
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puppetmaster=pipes.quote(p['puppetmaster']))
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if p['show_diff']:
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cmd += " --show-diff"
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else:
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cmd = ("%(base_cmd) apply --detailed-exitcodes %(manifest)s" % dict(
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base_cmd=base_cmd,
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manifest=pipes.quote(p['manifest']))
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rc, stdout, stderr = module.run_command(cmd)
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if rc == 0:
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# success
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module.exit_json(rc=rc, changed=False, stdout=stdout)
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elif rc == 1:
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# rc==1 could be because it's disabled
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# rc==1 could also mean there was a compilation failure
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disabled = "administratively disabled" in stdout
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if disabled:
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msg = "puppet is disabled"
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else:
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msg = "puppet did not run"
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module.exit_json(
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rc=rc, disabled=disabled, msg=msg,
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error=True, stdout=stdout, stderr=stderr)
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elif rc == 2:
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# success with changes
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module.exit_json(rc=0, changed=True)
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elif rc == 124:
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# timeout
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module.exit_json(
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rc=rc, msg="%s timed out" % cmd, stdout=stdout, stderr=stderr)
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else:
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# failure
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module.fail_json(
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rc=rc, msg="%s failed with return code: %d" % (cmd, rc),
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stdout=stdout, stderr=stderr)
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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