260 Zeilen
8.7 KiB
Python
260 Zeilen
8.7 KiB
Python
#!/usr/bin/python3
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import pathlib
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from typing import List, Union
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try:
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from ansible_collections.sebastian.systemd.plugins.module_utils.generic import SYSTEMD_SERVICE_CONFIG, Types
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from ansible_collections.sebastian.systemd.plugins.module_utils.module import SystemdReloadMixin, SystemdUnitModule, installable
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except ImportError:
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from plugins.module_utils.generic import SYSTEMD_SERVICE_CONFIG, Types
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from plugins.module_utils.module import SystemdReloadMixin, SystemdUnitModule, installable
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@installable
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class Module(SystemdUnitModule, SystemdReloadMixin):
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"""Creates System Services units"""
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name = "system_service"
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module_spec = dict(
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argument_spec=dict(
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name=Types.str(required=True, help="Name of the service"),
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serviceuser=Types.str(help="Username of under which the commands run at.", default="root"),
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servicegroup=Types.str(help="Group of under which the commands run at.", default="root"),
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type=Types.str(
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choices=("simple", "exec", "forking", "oneshot", "dbus", "notify", "notify-reload", "idle"),
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default="simple",
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help="Type of the systemd service.\n"
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"simple and exec start long running services that run in the same process over the whole time, exec is waiting until the process was started completly.\n"
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"forking does some things in the foreground, starts an background process and then exits to leave the work to the background process.\n"
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"oneshot processes are started by systemd, do their work and then exit, similar to cronjobs.\n"
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"dbus services will be considered started up once they aquire the specified dbus bus"
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"notify and notify-reload notify systemd about the start up via sd_notify. notify-reload needs also inform systemd on reloads and when it is ready again after an reload.\n"
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"idle is similar to simple, but it can delay the start up by a few seconds.",
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),
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pre=Types.list(str, help="command or list of commands that are started before the main command(Types.str)"),
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start=Types.list(
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str,
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True,
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help="command or list of commands that are started as main programm. Multiple commands are only allowed in a oneshot command",
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),
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post=Types.list(str, help="Command or list of commands that are started after the main command(s) stopped without problems."),
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environmentfile=Types.list(
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str, help="List of file that are containing environment variables. They are evaluated before each pre/start/post command"
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),
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environment=Types.list(
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Types.dict(
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name=Types.str(help="name of the Environment variable", required=True),
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value=Types.str(help="value of the Environment variable", required=True),
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),
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help="List of environment variables that are set to each command before they run",
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),
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workingdirectory=Types.str(help="The Directory that is used for the processes as current working directory"),
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),
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)
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def prepare(self):
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self.unitfile = (SYSTEMD_SERVICE_CONFIG / self.get("name")).with_suffix(".service")
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self.__unit = None
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if self.get("type", "simple") != "oneshot" and len(self.get("start")) > 1:
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self.module.fail_json("only oneshot services are allowed to have multiple start commands", **self.result)
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def service(self):
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section = "[Service]\n"
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section += "".join(
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self.map_param(
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type="Type",
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pre="ExecStartPre",
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start="ExecStart",
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post="ExecStartPost",
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serviceuser="User",
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servicegroup="Group",
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workingdirectory="WorkingDirectory",
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)
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)
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return section
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def unit(self) -> str:
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if self.__unit is None:
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self.__unit = "\n".join(
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(
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self.header(),
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self.service(),
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self.install(),
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)
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)
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return self.__unit
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DOCUMENTATION = """---
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description:
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- Creates System Services units
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module: system_service
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options:
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after:
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default: []
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description:
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- list of units that this unit wants to be started after this unit
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elements: str
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required: false
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type: list
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before:
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default: []
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description:
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- list of units that this unit needs to be started before this unit.
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elements: str
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required: false
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type: list
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description:
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description:
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- An description for programs that access systemd
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required: false
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type: str
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documentation:
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default: []
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description:
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- Paths where documentation can be found
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elements: str
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required: false
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type: list
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environment:
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default: []
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description:
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- List of environment variables that are set to each command before they run
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elements: dict
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options:
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name:
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description:
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- name of the Environment variable
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required: true
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type: str
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value:
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description:
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- value of the Environment variable
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required: true
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type: str
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required: false
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type: list
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environmentfile:
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default: []
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description:
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- List of file that are containing environment variables. They are evaluated before
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each pre/start/post command
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elements: str
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required: false
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type: list
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name:
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description:
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- Name of the service
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required: true
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type: str
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partof:
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default: []
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description:
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- list of units that this unit is part of.
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- If the restart this unit does it too, but if this restarts it does not affect
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the other units.
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elements: str
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required: false
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type: list
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post:
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default: []
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description:
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- Command or list of commands that are started after the main command(s) stopped
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without problems.
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elements: str
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required: false
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type: list
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pre:
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default: []
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description:
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- command or list of commands that are started before the main command(Types.str)
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elements: str
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required: false
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type: list
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required_by:
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default: []
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description:
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- systemd units that require this mount
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elements: str
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required: false
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type: list
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requires:
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default: []
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description:
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- list of units that this unit requires. If it fails or can't be started this
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unit fails. without before/after this is started at the same time
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elements: str
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required: false
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type: list
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servicegroup:
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default: root
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description:
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- Group of under which the commands run at.
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required: false
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type: str
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serviceuser:
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default: root
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description:
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- Username of under which the commands run at.
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required: false
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type: str
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start:
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description:
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- command or list of commands that are started as main programm. Multiple commands
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are only allowed in a oneshot command
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elements: str
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required: true
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type: list
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type:
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choices:
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- simple
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- exec
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- forking
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- oneshot
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- dbus
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- notify
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- notify-reload
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- idle
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default: simple
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description:
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- Type of the systemd service.
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- simple and exec start long running services that run in the same process over
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the whole time, exec is waiting until the process was started completly.
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- forking does some things in the foreground, starts an background process and
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then exits to leave the work to the background process.
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- oneshot processes are started by systemd, do their work and then exit, similar
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to cronjobs.
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- dbus services will be considered started up once they aquire the specified dbus
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busnotify and notify-reload notify systemd about the start up via sd_notify.
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notify-reload needs also inform systemd on reloads and when it is ready again
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after an reload.
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- idle is similar to simple, but it can delay the start up by a few seconds.
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required: false
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type: str
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wanted_by:
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default: []
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description:
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- systemd units that want the mount, but not explicitly require it. Commonly used
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for target if not service explicitly require it.
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elements: str
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required: false
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type: list
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wants:
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default: []
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description:
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- list of units that this unit wants. If it fails or can't be started it does
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not affect this unit
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elements: str
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required: false
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type: list
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workingdirectory:
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description:
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- The Directory that is used for the processes as current working directory
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required: false
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type: str
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short_description: Creates System Services units
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"""
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if __name__ == "__main__":
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Module()()
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