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community.general/plugins/modules/monitoring/logstash_plugin.py

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2020-03-09 10:11:07 +01:00
#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2017, Loic Blot <loic.blot@unix-experience.fr>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
DOCUMENTATION = '''
---
module: logstash_plugin
short_description: Manage Logstash plugins
description:
- Manages Logstash plugins.
author: Loic Blot (@nerzhul)
options:
name:
description:
- Install plugin with that name.
required: True
state:
description:
- Apply plugin state.
choices: ["present", "absent"]
default: present
plugin_bin:
description:
- Specify logstash-plugin to use for plugin management.
default: /usr/share/logstash/bin/logstash-plugin
proxy_host:
description:
- Proxy host to use during plugin installation.
proxy_port:
description:
- Proxy port to use during plugin installation.
version:
description:
- Specify plugin Version of the plugin to install.
If plugin exists with previous version, it will NOT be updated.
'''
EXAMPLES = '''
- name: Install Logstash beats input plugin
logstash_plugin:
state: present
name: logstash-input-beats
- name: Install specific version of a plugin
logstash_plugin:
state: present
name: logstash-input-syslog
version: '3.2.0'
- name: Uninstall Logstash plugin
logstash_plugin:
state: absent
name: logstash-filter-multiline
- name: install Logstash plugin with alternate heap size
logstash_plugin:
state: present
name: logstash-input-beats
environment:
LS_JAVA_OPTS: "-Xms256m -Xmx256m"
'''
from ansible.module_utils.basic import AnsibleModule
PACKAGE_STATE_MAP = dict(
present="install",
absent="remove"
)
def is_plugin_present(module, plugin_bin, plugin_name):
cmd_args = [plugin_bin, "list", plugin_name]
rc, out, err = module.run_command(" ".join(cmd_args))
return rc == 0
def parse_error(string):
reason = "reason: "
try:
return string[string.index(reason) + len(reason):].strip()
except ValueError:
return string
def install_plugin(module, plugin_bin, plugin_name, version, proxy_host, proxy_port):
cmd_args = [plugin_bin, PACKAGE_STATE_MAP["present"], plugin_name]
if version:
cmd_args.append("--version %s" % version)
if proxy_host and proxy_port:
cmd_args.append("-DproxyHost=%s -DproxyPort=%s" % (proxy_host, proxy_port))
cmd = " ".join(cmd_args)
if module.check_mode:
rc, out, err = 0, "check mode", ""
else:
rc, out, err = module.run_command(cmd)
if rc != 0:
reason = parse_error(out)
module.fail_json(msg=reason)
return True, cmd, out, err
def remove_plugin(module, plugin_bin, plugin_name):
cmd_args = [plugin_bin, PACKAGE_STATE_MAP["absent"], plugin_name]
cmd = " ".join(cmd_args)
if module.check_mode:
rc, out, err = 0, "check mode", ""
else:
rc, out, err = module.run_command(cmd)
if rc != 0:
reason = parse_error(out)
module.fail_json(msg=reason)
return True, cmd, out, err
def main():
module = AnsibleModule(
argument_spec=dict(
name=dict(required=True),
state=dict(default="present", choices=PACKAGE_STATE_MAP.keys()),
plugin_bin=dict(default="/usr/share/logstash/bin/logstash-plugin", type="path"),
proxy_host=dict(default=None),
proxy_port=dict(default=None),
version=dict(default=None)
),
supports_check_mode=True
)
name = module.params["name"]
state = module.params["state"]
plugin_bin = module.params["plugin_bin"]
proxy_host = module.params["proxy_host"]
proxy_port = module.params["proxy_port"]
version = module.params["version"]
present = is_plugin_present(module, plugin_bin, name)
# skip if the state is correct
if (present and state == "present") or (state == "absent" and not present):
module.exit_json(changed=False, name=name, state=state)
if state == "present":
changed, cmd, out, err = install_plugin(module, plugin_bin, name, version, proxy_host, proxy_port)
elif state == "absent":
changed, cmd, out, err = remove_plugin(module, plugin_bin, name)
module.exit_json(changed=changed, cmd=cmd, name=name, state=state, stdout=out, stderr=err)
if __name__ == '__main__':
main()