mirror of https://github.com/ansible/ansible.git
rename systemd module to services only (#77644)
* rename systemd module to services only disambiguates what it handles since systemd is now much more that a service manager, but the module is specific to servicespull/77826/head
Brian Coca
3 years ago
committed by
GitHub
parent
c9ce7d08a2
commit
4706091a38
@ -0,0 +1,2 @@
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minor_changes:
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- systemd is now systemd_service to better reflect the scope of the module, systemd is kept as an alias for backwards compatibility.
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@ -1,569 +0,0 @@
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# -*- coding: utf-8 -*-
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# Copyright: (c) 2016, Brian Coca <bcoca@ansible.com>
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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DOCUMENTATION = '''
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module: systemd
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author:
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- Ansible Core Team
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version_added: "2.2"
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short_description: Manage systemd units
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description:
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- Controls systemd units (services, timers, and so on) on remote hosts.
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options:
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name:
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description:
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- Name of the unit. This parameter takes the name of exactly one unit to work with.
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- When no extension is given, it is implied to a C(.service) as systemd.
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- When using in a chroot environment you always need to specify the name of the unit with the extension. For example, C(crond.service).
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type: str
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aliases: [ service, unit ]
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state:
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description:
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- C(started)/C(stopped) are idempotent actions that will not run commands unless necessary.
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C(restarted) will always bounce the unit. C(reloaded) will always reload.
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type: str
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choices: [ reloaded, restarted, started, stopped ]
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enabled:
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description:
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- Whether the unit should start on boot. B(At least one of state and enabled are required.)
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type: bool
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force:
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description:
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- Whether to override existing symlinks.
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type: bool
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version_added: 2.6
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masked:
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description:
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- Whether the unit should be masked or not, a masked unit is impossible to start.
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type: bool
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daemon_reload:
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description:
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- Run daemon-reload before doing any other operations, to make sure systemd has read any changes.
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- When set to C(true), runs daemon-reload even if the module does not start or stop anything.
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type: bool
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default: no
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aliases: [ daemon-reload ]
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daemon_reexec:
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description:
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- Run daemon_reexec command before doing any other operations, the systemd manager will serialize the manager state.
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type: bool
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default: no
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aliases: [ daemon-reexec ]
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version_added: "2.8"
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scope:
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description:
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- Run systemctl within a given service manager scope, either as the default system scope C(system),
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the current user's scope C(user), or the scope of all users C(global).
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- "For systemd to work with 'user', the executing user must have its own instance of dbus started and accessible (systemd requirement)."
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- "The user dbus process is normally started during normal login, but not during the run of Ansible tasks.
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Otherwise you will probably get a 'Failed to connect to bus: no such file or directory' error."
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- The user must have access, normally given via setting the C(XDG_RUNTIME_DIR) variable, see example below.
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type: str
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choices: [ system, user, global ]
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default: system
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version_added: "2.7"
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no_block:
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description:
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- Do not synchronously wait for the requested operation to finish.
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Enqueued job will continue without Ansible blocking on its completion.
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type: bool
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default: no
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version_added: "2.3"
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extends_documentation_fragment: action_common_attributes
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attributes:
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check_mode:
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support: full
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diff_mode:
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support: none
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platform:
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platforms: posix
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notes:
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- Since 2.4, one of the following options is required C(state), C(enabled), C(masked), C(daemon_reload), (C(daemon_reexec) since 2.8),
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and all except C(daemon_reload) and (C(daemon_reexec) since 2.8) also require C(name).
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- Before 2.4 you always required C(name).
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- Globs are not supported in name, i.e C(postgres*.service).
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- The service names might vary by specific OS/distribution
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requirements:
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- A system managed by systemd.
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'''
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EXAMPLES = '''
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- name: Make sure a service unit is running
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ansible.builtin.systemd:
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state: started
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name: httpd
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- name: Stop service cron on debian, if running
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ansible.builtin.systemd:
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name: cron
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state: stopped
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- name: Restart service cron on centos, in all cases, also issue daemon-reload to pick up config changes
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ansible.builtin.systemd:
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state: restarted
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daemon_reload: yes
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name: crond
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- name: Reload service httpd, in all cases
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ansible.builtin.systemd:
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name: httpd.service
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state: reloaded
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- name: Enable service httpd and ensure it is not masked
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ansible.builtin.systemd:
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name: httpd
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enabled: yes
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masked: no
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- name: Enable a timer unit for dnf-automatic
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ansible.builtin.systemd:
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name: dnf-automatic.timer
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state: started
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enabled: yes
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- name: Just force systemd to reread configs (2.4 and above)
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ansible.builtin.systemd:
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daemon_reload: yes
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- name: Just force systemd to re-execute itself (2.8 and above)
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ansible.builtin.systemd:
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daemon_reexec: yes
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- name: Run a user service when XDG_RUNTIME_DIR is not set on remote login
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ansible.builtin.systemd:
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name: myservice
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state: started
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scope: user
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environment:
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XDG_RUNTIME_DIR: "/run/user/{{ myuid }}"
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'''
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RETURN = '''
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status:
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description: A dictionary with the key=value pairs returned from C(systemctl show).
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returned: success
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type: complex
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sample: {
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"ActiveEnterTimestamp": "Sun 2016-05-15 18:28:49 EDT",
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"ActiveEnterTimestampMonotonic": "8135942",
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"ActiveExitTimestampMonotonic": "0",
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"ActiveState": "active",
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"After": "auditd.service systemd-user-sessions.service time-sync.target systemd-journald.socket basic.target system.slice",
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"AllowIsolate": "no",
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"Before": "shutdown.target multi-user.target",
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"BlockIOAccounting": "no",
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"BlockIOWeight": "1000",
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"CPUAccounting": "no",
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"CPUSchedulingPolicy": "0",
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"CPUSchedulingPriority": "0",
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"CPUSchedulingResetOnFork": "no",
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"CPUShares": "1024",
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"CanIsolate": "no",
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"CanReload": "yes",
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"CanStart": "yes",
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"CanStop": "yes",
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"CapabilityBoundingSet": "18446744073709551615",
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"ConditionResult": "yes",
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"ConditionTimestamp": "Sun 2016-05-15 18:28:49 EDT",
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"ConditionTimestampMonotonic": "7902742",
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"Conflicts": "shutdown.target",
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"ControlGroup": "/system.slice/crond.service",
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"ControlPID": "0",
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"DefaultDependencies": "yes",
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"Delegate": "no",
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"Description": "Command Scheduler",
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"DevicePolicy": "auto",
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"EnvironmentFile": "/etc/sysconfig/crond (ignore_errors=no)",
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"ExecMainCode": "0",
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"ExecMainExitTimestampMonotonic": "0",
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"ExecMainPID": "595",
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"ExecMainStartTimestamp": "Sun 2016-05-15 18:28:49 EDT",
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"ExecMainStartTimestampMonotonic": "8134990",
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"ExecMainStatus": "0",
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"ExecReload": "{ path=/bin/kill ; argv[]=/bin/kill -HUP $MAINPID ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",
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"ExecStart": "{ path=/usr/sbin/crond ; argv[]=/usr/sbin/crond -n $CRONDARGS ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",
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"FragmentPath": "/usr/lib/systemd/system/crond.service",
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"GuessMainPID": "yes",
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"IOScheduling": "0",
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"Id": "crond.service",
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"IgnoreOnIsolate": "no",
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"IgnoreOnSnapshot": "no",
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"IgnoreSIGPIPE": "yes",
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"InactiveEnterTimestampMonotonic": "0",
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"InactiveExitTimestamp": "Sun 2016-05-15 18:28:49 EDT",
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"InactiveExitTimestampMonotonic": "8135942",
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"JobTimeoutUSec": "0",
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"KillMode": "process",
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"KillSignal": "15",
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"LimitAS": "18446744073709551615",
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"LimitCORE": "18446744073709551615",
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"LimitCPU": "18446744073709551615",
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"LimitDATA": "18446744073709551615",
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"LimitFSIZE": "18446744073709551615",
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"LimitLOCKS": "18446744073709551615",
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"LimitMEMLOCK": "65536",
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"LimitMSGQUEUE": "819200",
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"LimitNICE": "0",
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"LimitNOFILE": "4096",
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"LimitNPROC": "3902",
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"LimitRSS": "18446744073709551615",
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"LimitRTPRIO": "0",
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"LimitRTTIME": "18446744073709551615",
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"LimitSIGPENDING": "3902",
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"LimitSTACK": "18446744073709551615",
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"LoadState": "loaded",
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"MainPID": "595",
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"MemoryAccounting": "no",
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"MemoryLimit": "18446744073709551615",
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"MountFlags": "0",
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"Names": "crond.service",
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"NeedDaemonReload": "no",
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"Nice": "0",
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"NoNewPrivileges": "no",
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"NonBlocking": "no",
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"NotifyAccess": "none",
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"OOMScoreAdjust": "0",
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"OnFailureIsolate": "no",
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"PermissionsStartOnly": "no",
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"PrivateNetwork": "no",
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"PrivateTmp": "no",
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"RefuseManualStart": "no",
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"RefuseManualStop": "no",
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"RemainAfterExit": "no",
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"Requires": "basic.target",
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"Restart": "no",
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"RestartUSec": "100ms",
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"Result": "success",
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"RootDirectoryStartOnly": "no",
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"SameProcessGroup": "no",
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"SecureBits": "0",
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"SendSIGHUP": "no",
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"SendSIGKILL": "yes",
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"Slice": "system.slice",
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"StandardError": "inherit",
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"StandardInput": "null",
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"StandardOutput": "journal",
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"StartLimitAction": "none",
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"StartLimitBurst": "5",
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"StartLimitInterval": "10000000",
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"StatusErrno": "0",
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"StopWhenUnneeded": "no",
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"SubState": "running",
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"SyslogLevelPrefix": "yes",
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"SyslogPriority": "30",
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"TTYReset": "no",
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"TTYVHangup": "no",
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"TTYVTDisallocate": "no",
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"TimeoutStartUSec": "1min 30s",
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"TimeoutStopUSec": "1min 30s",
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"TimerSlackNSec": "50000",
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"Transient": "no",
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"Type": "simple",
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"UMask": "0022",
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"UnitFileState": "enabled",
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"WantedBy": "multi-user.target",
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"Wants": "system.slice",
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"WatchdogTimestampMonotonic": "0",
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"WatchdogUSec": "0",
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}
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''' # NOQA
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import os
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.facts.system.chroot import is_chroot
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from ansible.module_utils.service import sysv_exists, sysv_is_enabled, fail_if_missing
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from ansible.module_utils._text import to_native
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def is_running_service(service_status):
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return service_status['ActiveState'] in set(['active', 'activating'])
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def is_deactivating_service(service_status):
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return service_status['ActiveState'] in set(['deactivating'])
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def request_was_ignored(out):
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return '=' not in out and ('ignoring request' in out or 'ignoring command' in out)
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def parse_systemctl_show(lines):
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# The output of 'systemctl show' can contain values that span multiple lines. At first glance it
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# appears that such values are always surrounded by {}, so the previous version of this code
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# assumed that any value starting with { was a multi-line value; it would then consume lines
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# until it saw a line that ended with }. However, it is possible to have a single-line value
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# that starts with { but does not end with } (this could happen in the value for Description=,
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# for example), and the previous version of this code would then consume all remaining lines as
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# part of that value. Cryptically, this would lead to Ansible reporting that the service file
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# couldn't be found.
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#
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# To avoid this issue, the following code only accepts multi-line values for keys whose names
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# start with Exec (e.g., ExecStart=), since these are the only keys whose values are known to
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# span multiple lines.
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parsed = {}
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multival = []
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k = None
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for line in lines:
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if k is None:
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if '=' in line:
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k, v = line.split('=', 1)
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if k.startswith('Exec') and v.lstrip().startswith('{'):
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if not v.rstrip().endswith('}'):
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multival.append(v)
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continue
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parsed[k] = v.strip()
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k = None
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else:
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multival.append(line)
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if line.rstrip().endswith('}'):
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parsed[k] = '\n'.join(multival).strip()
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multival = []
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k = None
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return parsed
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# ===========================================
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# Main control flow
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def main():
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# initialize
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module = AnsibleModule(
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argument_spec=dict(
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name=dict(type='str', aliases=['service', 'unit']),
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state=dict(type='str', choices=['reloaded', 'restarted', 'started', 'stopped']),
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enabled=dict(type='bool'),
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force=dict(type='bool'),
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masked=dict(type='bool'),
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daemon_reload=dict(type='bool', default=False, aliases=['daemon-reload']),
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daemon_reexec=dict(type='bool', default=False, aliases=['daemon-reexec']),
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scope=dict(type='str', default='system', choices=['system', 'user', 'global']),
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no_block=dict(type='bool', default=False),
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),
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supports_check_mode=True,
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required_one_of=[['state', 'enabled', 'masked', 'daemon_reload', 'daemon_reexec']],
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required_by=dict(
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state=('name', ),
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enabled=('name', ),
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masked=('name', ),
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),
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)
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unit = module.params['name']
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if unit is not None:
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for globpattern in (r"*", r"?", r"["):
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if globpattern in unit:
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module.fail_json(msg="This module does not currently support using glob patterns, found '%s' in service name: %s" % (globpattern, unit))
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systemctl = module.get_bin_path('systemctl', True)
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if os.getenv('XDG_RUNTIME_DIR') is None:
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os.environ['XDG_RUNTIME_DIR'] = '/run/user/%s' % os.geteuid()
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''' Set CLI options depending on params '''
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# if scope is 'system' or None, we can ignore as there is no extra switch.
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# The other choices match the corresponding switch
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if module.params['scope'] != 'system':
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systemctl += " --%s" % module.params['scope']
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if module.params['no_block']:
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systemctl += " --no-block"
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if module.params['force']:
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systemctl += " --force"
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rc = 0
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out = err = ''
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result = dict(
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name=unit,
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changed=False,
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status=dict(),
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)
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# Run daemon-reload first, if requested
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if module.params['daemon_reload'] and not module.check_mode:
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(rc, out, err) = module.run_command("%s daemon-reload" % (systemctl))
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if rc != 0:
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module.fail_json(msg='failure %d during daemon-reload: %s' % (rc, err))
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# Run daemon-reexec
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if module.params['daemon_reexec'] and not module.check_mode:
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(rc, out, err) = module.run_command("%s daemon-reexec" % (systemctl))
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if rc != 0:
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module.fail_json(msg='failure %d during daemon-reexec: %s' % (rc, err))
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if unit:
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found = False
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is_initd = sysv_exists(unit)
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is_systemd = False
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# check service data, cannot error out on rc as it changes across versions, assume not found
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(rc, out, err) = module.run_command("%s show '%s'" % (systemctl, unit))
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if rc == 0 and not (request_was_ignored(out) or request_was_ignored(err)):
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# load return of systemctl show into dictionary for easy access and return
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if out:
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result['status'] = parse_systemctl_show(to_native(out).split('\n'))
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is_systemd = 'LoadState' in result['status'] and result['status']['LoadState'] != 'not-found'
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is_masked = 'LoadState' in result['status'] and result['status']['LoadState'] == 'masked'
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# Check for loading error
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if is_systemd and not is_masked and 'LoadError' in result['status']:
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module.fail_json(msg="Error loading unit file '%s': %s" % (unit, result['status']['LoadError']))
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# Workaround for https://github.com/ansible/ansible/issues/71528
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elif err and rc == 1 and 'Failed to parse bus message' in err:
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result['status'] = parse_systemctl_show(to_native(out).split('\n'))
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unit_base, sep, suffix = unit.partition('@')
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unit_search = '{unit_base}{sep}'.format(unit_base=unit_base, sep=sep)
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(rc, out, err) = module.run_command("{systemctl} list-unit-files '{unit_search}*'".format(systemctl=systemctl, unit_search=unit_search))
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is_systemd = unit_search in out
|
||||
|
||||
(rc, out, err) = module.run_command("{systemctl} is-active '{unit}'".format(systemctl=systemctl, unit=unit))
|
||||
result['status']['ActiveState'] = out.rstrip('\n')
|
||||
|
||||
else:
|
||||
# list taken from man systemctl(1) for systemd 244
|
||||
valid_enabled_states = [
|
||||
"enabled",
|
||||
"enabled-runtime",
|
||||
"linked",
|
||||
"linked-runtime",
|
||||
"masked",
|
||||
"masked-runtime",
|
||||
"static",
|
||||
"indirect",
|
||||
"disabled",
|
||||
"generated",
|
||||
"transient"]
|
||||
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s'" % (systemctl, unit))
|
||||
if out.strip() in valid_enabled_states:
|
||||
is_systemd = True
|
||||
else:
|
||||
# fallback list-unit-files as show does not work on some systems (chroot)
|
||||
# not used as primary as it skips some services (like those using init.d) and requires .service/etc notation
|
||||
(rc, out, err) = module.run_command("%s list-unit-files '%s'" % (systemctl, unit))
|
||||
if rc == 0:
|
||||
is_systemd = True
|
||||
else:
|
||||
# Check for systemctl command
|
||||
module.run_command(systemctl, check_rc=True)
|
||||
|
||||
# Does service exist?
|
||||
found = is_systemd or is_initd
|
||||
if is_initd and not is_systemd:
|
||||
module.warn('The service (%s) is actually an init script but the system is managed by systemd' % unit)
|
||||
|
||||
# mask/unmask the service, if requested, can operate on services before they are installed
|
||||
if module.params['masked'] is not None:
|
||||
# state is not masked unless systemd affirms otherwise
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s'" % (systemctl, unit))
|
||||
masked = out.strip() == "masked"
|
||||
|
||||
if masked != module.params['masked']:
|
||||
result['changed'] = True
|
||||
if module.params['masked']:
|
||||
action = 'mask'
|
||||
else:
|
||||
action = 'unmask'
|
||||
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
# some versions of system CAN mask/unmask non existing services, we only fail on missing if they don't
|
||||
fail_if_missing(module, found, unit, msg='host')
|
||||
|
||||
# Enable/disable service startup at boot if requested
|
||||
if module.params['enabled'] is not None:
|
||||
|
||||
if module.params['enabled']:
|
||||
action = 'enable'
|
||||
else:
|
||||
action = 'disable'
|
||||
|
||||
fail_if_missing(module, found, unit, msg='host')
|
||||
|
||||
# do we need to enable the service?
|
||||
enabled = False
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s' -l" % (systemctl, unit))
|
||||
|
||||
# check systemctl result or if it is a init script
|
||||
if rc == 0:
|
||||
enabled = True
|
||||
# Check if the service is indirect or alias and if out contains exactly 1 line of string 'indirect'/ 'alias' it's disabled
|
||||
if out.splitlines() == ["indirect"] or out.splitlines() == ["alias"]:
|
||||
enabled = False
|
||||
|
||||
elif rc == 1:
|
||||
# if not a user or global user service and both init script and unit file exist stdout should have enabled/disabled, otherwise use rc entries
|
||||
if module.params['scope'] == 'system' and \
|
||||
is_initd and \
|
||||
not out.strip().endswith('disabled') and \
|
||||
sysv_is_enabled(unit):
|
||||
enabled = True
|
||||
|
||||
# default to current state
|
||||
result['enabled'] = enabled
|
||||
|
||||
# Change enable/disable if needed
|
||||
if enabled != module.params['enabled']:
|
||||
result['changed'] = True
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
module.fail_json(msg="Unable to %s service %s: %s" % (action, unit, out + err))
|
||||
|
||||
result['enabled'] = not enabled
|
||||
|
||||
# set service state if requested
|
||||
if module.params['state'] is not None:
|
||||
fail_if_missing(module, found, unit, msg="host")
|
||||
|
||||
# default to desired state
|
||||
result['state'] = module.params['state']
|
||||
|
||||
# What is current service state?
|
||||
if 'ActiveState' in result['status']:
|
||||
action = None
|
||||
if module.params['state'] == 'started':
|
||||
if not is_running_service(result['status']):
|
||||
action = 'start'
|
||||
elif module.params['state'] == 'stopped':
|
||||
if is_running_service(result['status']) or is_deactivating_service(result['status']):
|
||||
action = 'stop'
|
||||
else:
|
||||
if not is_running_service(result['status']):
|
||||
action = 'start'
|
||||
else:
|
||||
action = module.params['state'][:-2] # remove 'ed' from restarted/reloaded
|
||||
result['state'] = 'started'
|
||||
|
||||
if action:
|
||||
result['changed'] = True
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
module.fail_json(msg="Unable to %s service %s: %s" % (action, unit, err))
|
||||
# check for chroot
|
||||
elif is_chroot(module) or os.environ.get('SYSTEMD_OFFLINE') == '1':
|
||||
module.warn("Target is a chroot or systemd is offline. This can lead to false positives or prevent the init system tools from working.")
|
||||
else:
|
||||
# this should not happen?
|
||||
module.fail_json(msg="Service is in unknown state", status=result['status'])
|
||||
|
||||
module.exit_json(**result)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
@ -0,0 +1 @@
|
||||
systemd_service.py
|
||||
@ -0,0 +1,569 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# Copyright: (c) 2016, Brian Coca <bcoca@ansible.com>
|
||||
# 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: systemd_service
|
||||
author:
|
||||
- Ansible Core Team
|
||||
version_added: "2.2"
|
||||
short_description: Manage systemd units
|
||||
description:
|
||||
- Controls systemd units (services, timers, and so on) on remote hosts.
|
||||
options:
|
||||
name:
|
||||
description:
|
||||
- Name of the unit. This parameter takes the name of exactly one unit to work with.
|
||||
- When no extension is given, it is implied to a C(.service) as systemd.
|
||||
- When using in a chroot environment you always need to specify the name of the unit with the extension. For example, C(crond.service).
|
||||
type: str
|
||||
aliases: [ service, unit ]
|
||||
state:
|
||||
description:
|
||||
- C(started)/C(stopped) are idempotent actions that will not run commands unless necessary.
|
||||
C(restarted) will always bounce the unit. C(reloaded) will always reload.
|
||||
type: str
|
||||
choices: [ reloaded, restarted, started, stopped ]
|
||||
enabled:
|
||||
description:
|
||||
- Whether the unit should start on boot. B(At least one of state and enabled are required.)
|
||||
type: bool
|
||||
force:
|
||||
description:
|
||||
- Whether to override existing symlinks.
|
||||
type: bool
|
||||
version_added: 2.6
|
||||
masked:
|
||||
description:
|
||||
- Whether the unit should be masked or not, a masked unit is impossible to start.
|
||||
type: bool
|
||||
daemon_reload:
|
||||
description:
|
||||
- Run daemon-reload before doing any other operations, to make sure systemd has read any changes.
|
||||
- When set to C(true), runs daemon-reload even if the module does not start or stop anything.
|
||||
type: bool
|
||||
default: no
|
||||
aliases: [ daemon-reload ]
|
||||
daemon_reexec:
|
||||
description:
|
||||
- Run daemon_reexec command before doing any other operations, the systemd manager will serialize the manager state.
|
||||
type: bool
|
||||
default: no
|
||||
aliases: [ daemon-reexec ]
|
||||
version_added: "2.8"
|
||||
scope:
|
||||
description:
|
||||
- Run systemctl within a given service manager scope, either as the default system scope C(system),
|
||||
the current user's scope C(user), or the scope of all users C(global).
|
||||
- "For systemd to work with 'user', the executing user must have its own instance of dbus started and accessible (systemd requirement)."
|
||||
- "The user dbus process is normally started during normal login, but not during the run of Ansible tasks.
|
||||
Otherwise you will probably get a 'Failed to connect to bus: no such file or directory' error."
|
||||
- The user must have access, normally given via setting the C(XDG_RUNTIME_DIR) variable, see example below.
|
||||
|
||||
type: str
|
||||
choices: [ system, user, global ]
|
||||
default: system
|
||||
version_added: "2.7"
|
||||
no_block:
|
||||
description:
|
||||
- Do not synchronously wait for the requested operation to finish.
|
||||
Enqueued job will continue without Ansible blocking on its completion.
|
||||
type: bool
|
||||
default: no
|
||||
version_added: "2.3"
|
||||
extends_documentation_fragment: action_common_attributes
|
||||
attributes:
|
||||
check_mode:
|
||||
support: full
|
||||
diff_mode:
|
||||
support: none
|
||||
platform:
|
||||
platforms: posix
|
||||
notes:
|
||||
- Since 2.4, one of the following options is required C(state), C(enabled), C(masked), C(daemon_reload), (C(daemon_reexec) since 2.8),
|
||||
and all except C(daemon_reload) and (C(daemon_reexec) since 2.8) also require C(name).
|
||||
- Before 2.4 you always required C(name).
|
||||
- Globs are not supported in name, i.e C(postgres*.service).
|
||||
- The service names might vary by specific OS/distribution
|
||||
requirements:
|
||||
- A system managed by systemd.
|
||||
'''
|
||||
|
||||
EXAMPLES = '''
|
||||
- name: Make sure a service unit is running
|
||||
ansible.builtin.systemd:
|
||||
state: started
|
||||
name: httpd
|
||||
|
||||
- name: Stop service cron on debian, if running
|
||||
ansible.builtin.systemd:
|
||||
name: cron
|
||||
state: stopped
|
||||
|
||||
- name: Restart service cron on centos, in all cases, also issue daemon-reload to pick up config changes
|
||||
ansible.builtin.systemd:
|
||||
state: restarted
|
||||
daemon_reload: yes
|
||||
name: crond
|
||||
|
||||
- name: Reload service httpd, in all cases
|
||||
ansible.builtin.systemd:
|
||||
name: httpd.service
|
||||
state: reloaded
|
||||
|
||||
- name: Enable service httpd and ensure it is not masked
|
||||
ansible.builtin.systemd:
|
||||
name: httpd
|
||||
enabled: yes
|
||||
masked: no
|
||||
|
||||
- name: Enable a timer unit for dnf-automatic
|
||||
ansible.builtin.systemd:
|
||||
name: dnf-automatic.timer
|
||||
state: started
|
||||
enabled: yes
|
||||
|
||||
- name: Just force systemd to reread configs (2.4 and above)
|
||||
ansible.builtin.systemd:
|
||||
daemon_reload: yes
|
||||
|
||||
- name: Just force systemd to re-execute itself (2.8 and above)
|
||||
ansible.builtin.systemd:
|
||||
daemon_reexec: yes
|
||||
|
||||
- name: Run a user service when XDG_RUNTIME_DIR is not set on remote login
|
||||
ansible.builtin.systemd:
|
||||
name: myservice
|
||||
state: started
|
||||
scope: user
|
||||
environment:
|
||||
XDG_RUNTIME_DIR: "/run/user/{{ myuid }}"
|
||||
'''
|
||||
|
||||
RETURN = '''
|
||||
status:
|
||||
description: A dictionary with the key=value pairs returned from C(systemctl show).
|
||||
returned: success
|
||||
type: complex
|
||||
sample: {
|
||||
"ActiveEnterTimestamp": "Sun 2016-05-15 18:28:49 EDT",
|
||||
"ActiveEnterTimestampMonotonic": "8135942",
|
||||
"ActiveExitTimestampMonotonic": "0",
|
||||
"ActiveState": "active",
|
||||
"After": "auditd.service systemd-user-sessions.service time-sync.target systemd-journald.socket basic.target system.slice",
|
||||
"AllowIsolate": "no",
|
||||
"Before": "shutdown.target multi-user.target",
|
||||
"BlockIOAccounting": "no",
|
||||
"BlockIOWeight": "1000",
|
||||
"CPUAccounting": "no",
|
||||
"CPUSchedulingPolicy": "0",
|
||||
"CPUSchedulingPriority": "0",
|
||||
"CPUSchedulingResetOnFork": "no",
|
||||
"CPUShares": "1024",
|
||||
"CanIsolate": "no",
|
||||
"CanReload": "yes",
|
||||
"CanStart": "yes",
|
||||
"CanStop": "yes",
|
||||
"CapabilityBoundingSet": "18446744073709551615",
|
||||
"ConditionResult": "yes",
|
||||
"ConditionTimestamp": "Sun 2016-05-15 18:28:49 EDT",
|
||||
"ConditionTimestampMonotonic": "7902742",
|
||||
"Conflicts": "shutdown.target",
|
||||
"ControlGroup": "/system.slice/crond.service",
|
||||
"ControlPID": "0",
|
||||
"DefaultDependencies": "yes",
|
||||
"Delegate": "no",
|
||||
"Description": "Command Scheduler",
|
||||
"DevicePolicy": "auto",
|
||||
"EnvironmentFile": "/etc/sysconfig/crond (ignore_errors=no)",
|
||||
"ExecMainCode": "0",
|
||||
"ExecMainExitTimestampMonotonic": "0",
|
||||
"ExecMainPID": "595",
|
||||
"ExecMainStartTimestamp": "Sun 2016-05-15 18:28:49 EDT",
|
||||
"ExecMainStartTimestampMonotonic": "8134990",
|
||||
"ExecMainStatus": "0",
|
||||
"ExecReload": "{ path=/bin/kill ; argv[]=/bin/kill -HUP $MAINPID ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",
|
||||
"ExecStart": "{ path=/usr/sbin/crond ; argv[]=/usr/sbin/crond -n $CRONDARGS ; ignore_errors=no ; start_time=[n/a] ; stop_time=[n/a] ; pid=0 ; code=(null) ; status=0/0 }",
|
||||
"FragmentPath": "/usr/lib/systemd/system/crond.service",
|
||||
"GuessMainPID": "yes",
|
||||
"IOScheduling": "0",
|
||||
"Id": "crond.service",
|
||||
"IgnoreOnIsolate": "no",
|
||||
"IgnoreOnSnapshot": "no",
|
||||
"IgnoreSIGPIPE": "yes",
|
||||
"InactiveEnterTimestampMonotonic": "0",
|
||||
"InactiveExitTimestamp": "Sun 2016-05-15 18:28:49 EDT",
|
||||
"InactiveExitTimestampMonotonic": "8135942",
|
||||
"JobTimeoutUSec": "0",
|
||||
"KillMode": "process",
|
||||
"KillSignal": "15",
|
||||
"LimitAS": "18446744073709551615",
|
||||
"LimitCORE": "18446744073709551615",
|
||||
"LimitCPU": "18446744073709551615",
|
||||
"LimitDATA": "18446744073709551615",
|
||||
"LimitFSIZE": "18446744073709551615",
|
||||
"LimitLOCKS": "18446744073709551615",
|
||||
"LimitMEMLOCK": "65536",
|
||||
"LimitMSGQUEUE": "819200",
|
||||
"LimitNICE": "0",
|
||||
"LimitNOFILE": "4096",
|
||||
"LimitNPROC": "3902",
|
||||
"LimitRSS": "18446744073709551615",
|
||||
"LimitRTPRIO": "0",
|
||||
"LimitRTTIME": "18446744073709551615",
|
||||
"LimitSIGPENDING": "3902",
|
||||
"LimitSTACK": "18446744073709551615",
|
||||
"LoadState": "loaded",
|
||||
"MainPID": "595",
|
||||
"MemoryAccounting": "no",
|
||||
"MemoryLimit": "18446744073709551615",
|
||||
"MountFlags": "0",
|
||||
"Names": "crond.service",
|
||||
"NeedDaemonReload": "no",
|
||||
"Nice": "0",
|
||||
"NoNewPrivileges": "no",
|
||||
"NonBlocking": "no",
|
||||
"NotifyAccess": "none",
|
||||
"OOMScoreAdjust": "0",
|
||||
"OnFailureIsolate": "no",
|
||||
"PermissionsStartOnly": "no",
|
||||
"PrivateNetwork": "no",
|
||||
"PrivateTmp": "no",
|
||||
"RefuseManualStart": "no",
|
||||
"RefuseManualStop": "no",
|
||||
"RemainAfterExit": "no",
|
||||
"Requires": "basic.target",
|
||||
"Restart": "no",
|
||||
"RestartUSec": "100ms",
|
||||
"Result": "success",
|
||||
"RootDirectoryStartOnly": "no",
|
||||
"SameProcessGroup": "no",
|
||||
"SecureBits": "0",
|
||||
"SendSIGHUP": "no",
|
||||
"SendSIGKILL": "yes",
|
||||
"Slice": "system.slice",
|
||||
"StandardError": "inherit",
|
||||
"StandardInput": "null",
|
||||
"StandardOutput": "journal",
|
||||
"StartLimitAction": "none",
|
||||
"StartLimitBurst": "5",
|
||||
"StartLimitInterval": "10000000",
|
||||
"StatusErrno": "0",
|
||||
"StopWhenUnneeded": "no",
|
||||
"SubState": "running",
|
||||
"SyslogLevelPrefix": "yes",
|
||||
"SyslogPriority": "30",
|
||||
"TTYReset": "no",
|
||||
"TTYVHangup": "no",
|
||||
"TTYVTDisallocate": "no",
|
||||
"TimeoutStartUSec": "1min 30s",
|
||||
"TimeoutStopUSec": "1min 30s",
|
||||
"TimerSlackNSec": "50000",
|
||||
"Transient": "no",
|
||||
"Type": "simple",
|
||||
"UMask": "0022",
|
||||
"UnitFileState": "enabled",
|
||||
"WantedBy": "multi-user.target",
|
||||
"Wants": "system.slice",
|
||||
"WatchdogTimestampMonotonic": "0",
|
||||
"WatchdogUSec": "0",
|
||||
}
|
||||
''' # NOQA
|
||||
|
||||
import os
|
||||
|
||||
from ansible.module_utils.basic import AnsibleModule
|
||||
from ansible.module_utils.facts.system.chroot import is_chroot
|
||||
from ansible.module_utils.service import sysv_exists, sysv_is_enabled, fail_if_missing
|
||||
from ansible.module_utils._text import to_native
|
||||
|
||||
|
||||
def is_running_service(service_status):
|
||||
return service_status['ActiveState'] in set(['active', 'activating'])
|
||||
|
||||
|
||||
def is_deactivating_service(service_status):
|
||||
return service_status['ActiveState'] in set(['deactivating'])
|
||||
|
||||
|
||||
def request_was_ignored(out):
|
||||
return '=' not in out and ('ignoring request' in out or 'ignoring command' in out)
|
||||
|
||||
|
||||
def parse_systemctl_show(lines):
|
||||
# The output of 'systemctl show' can contain values that span multiple lines. At first glance it
|
||||
# appears that such values are always surrounded by {}, so the previous version of this code
|
||||
# assumed that any value starting with { was a multi-line value; it would then consume lines
|
||||
# until it saw a line that ended with }. However, it is possible to have a single-line value
|
||||
# that starts with { but does not end with } (this could happen in the value for Description=,
|
||||
# for example), and the previous version of this code would then consume all remaining lines as
|
||||
# part of that value. Cryptically, this would lead to Ansible reporting that the service file
|
||||
# couldn't be found.
|
||||
#
|
||||
# To avoid this issue, the following code only accepts multi-line values for keys whose names
|
||||
# start with Exec (e.g., ExecStart=), since these are the only keys whose values are known to
|
||||
# span multiple lines.
|
||||
parsed = {}
|
||||
multival = []
|
||||
k = None
|
||||
for line in lines:
|
||||
if k is None:
|
||||
if '=' in line:
|
||||
k, v = line.split('=', 1)
|
||||
if k.startswith('Exec') and v.lstrip().startswith('{'):
|
||||
if not v.rstrip().endswith('}'):
|
||||
multival.append(v)
|
||||
continue
|
||||
parsed[k] = v.strip()
|
||||
k = None
|
||||
else:
|
||||
multival.append(line)
|
||||
if line.rstrip().endswith('}'):
|
||||
parsed[k] = '\n'.join(multival).strip()
|
||||
multival = []
|
||||
k = None
|
||||
return parsed
|
||||
|
||||
|
||||
# ===========================================
|
||||
# Main control flow
|
||||
|
||||
def main():
|
||||
# initialize
|
||||
module = AnsibleModule(
|
||||
argument_spec=dict(
|
||||
name=dict(type='str', aliases=['service', 'unit']),
|
||||
state=dict(type='str', choices=['reloaded', 'restarted', 'started', 'stopped']),
|
||||
enabled=dict(type='bool'),
|
||||
force=dict(type='bool'),
|
||||
masked=dict(type='bool'),
|
||||
daemon_reload=dict(type='bool', default=False, aliases=['daemon-reload']),
|
||||
daemon_reexec=dict(type='bool', default=False, aliases=['daemon-reexec']),
|
||||
scope=dict(type='str', default='system', choices=['system', 'user', 'global']),
|
||||
no_block=dict(type='bool', default=False),
|
||||
),
|
||||
supports_check_mode=True,
|
||||
required_one_of=[['state', 'enabled', 'masked', 'daemon_reload', 'daemon_reexec']],
|
||||
required_by=dict(
|
||||
state=('name', ),
|
||||
enabled=('name', ),
|
||||
masked=('name', ),
|
||||
),
|
||||
)
|
||||
|
||||
unit = module.params['name']
|
||||
if unit is not None:
|
||||
for globpattern in (r"*", r"?", r"["):
|
||||
if globpattern in unit:
|
||||
module.fail_json(msg="This module does not currently support using glob patterns, found '%s' in service name: %s" % (globpattern, unit))
|
||||
|
||||
systemctl = module.get_bin_path('systemctl', True)
|
||||
|
||||
if os.getenv('XDG_RUNTIME_DIR') is None:
|
||||
os.environ['XDG_RUNTIME_DIR'] = '/run/user/%s' % os.geteuid()
|
||||
|
||||
''' Set CLI options depending on params '''
|
||||
# if scope is 'system' or None, we can ignore as there is no extra switch.
|
||||
# The other choices match the corresponding switch
|
||||
if module.params['scope'] != 'system':
|
||||
systemctl += " --%s" % module.params['scope']
|
||||
|
||||
if module.params['no_block']:
|
||||
systemctl += " --no-block"
|
||||
|
||||
if module.params['force']:
|
||||
systemctl += " --force"
|
||||
|
||||
rc = 0
|
||||
out = err = ''
|
||||
result = dict(
|
||||
name=unit,
|
||||
changed=False,
|
||||
status=dict(),
|
||||
)
|
||||
|
||||
# Run daemon-reload first, if requested
|
||||
if module.params['daemon_reload'] and not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s daemon-reload" % (systemctl))
|
||||
if rc != 0:
|
||||
module.fail_json(msg='failure %d during daemon-reload: %s' % (rc, err))
|
||||
|
||||
# Run daemon-reexec
|
||||
if module.params['daemon_reexec'] and not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s daemon-reexec" % (systemctl))
|
||||
if rc != 0:
|
||||
module.fail_json(msg='failure %d during daemon-reexec: %s' % (rc, err))
|
||||
|
||||
if unit:
|
||||
found = False
|
||||
is_initd = sysv_exists(unit)
|
||||
is_systemd = False
|
||||
|
||||
# check service data, cannot error out on rc as it changes across versions, assume not found
|
||||
(rc, out, err) = module.run_command("%s show '%s'" % (systemctl, unit))
|
||||
|
||||
if rc == 0 and not (request_was_ignored(out) or request_was_ignored(err)):
|
||||
# load return of systemctl show into dictionary for easy access and return
|
||||
if out:
|
||||
result['status'] = parse_systemctl_show(to_native(out).split('\n'))
|
||||
|
||||
is_systemd = 'LoadState' in result['status'] and result['status']['LoadState'] != 'not-found'
|
||||
|
||||
is_masked = 'LoadState' in result['status'] and result['status']['LoadState'] == 'masked'
|
||||
|
||||
# Check for loading error
|
||||
if is_systemd and not is_masked and 'LoadError' in result['status']:
|
||||
module.fail_json(msg="Error loading unit file '%s': %s" % (unit, result['status']['LoadError']))
|
||||
|
||||
# Workaround for https://github.com/ansible/ansible/issues/71528
|
||||
elif err and rc == 1 and 'Failed to parse bus message' in err:
|
||||
result['status'] = parse_systemctl_show(to_native(out).split('\n'))
|
||||
|
||||
unit_base, sep, suffix = unit.partition('@')
|
||||
unit_search = '{unit_base}{sep}'.format(unit_base=unit_base, sep=sep)
|
||||
(rc, out, err) = module.run_command("{systemctl} list-unit-files '{unit_search}*'".format(systemctl=systemctl, unit_search=unit_search))
|
||||
is_systemd = unit_search in out
|
||||
|
||||
(rc, out, err) = module.run_command("{systemctl} is-active '{unit}'".format(systemctl=systemctl, unit=unit))
|
||||
result['status']['ActiveState'] = out.rstrip('\n')
|
||||
|
||||
else:
|
||||
# list taken from man systemctl(1) for systemd 244
|
||||
valid_enabled_states = [
|
||||
"enabled",
|
||||
"enabled-runtime",
|
||||
"linked",
|
||||
"linked-runtime",
|
||||
"masked",
|
||||
"masked-runtime",
|
||||
"static",
|
||||
"indirect",
|
||||
"disabled",
|
||||
"generated",
|
||||
"transient"]
|
||||
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s'" % (systemctl, unit))
|
||||
if out.strip() in valid_enabled_states:
|
||||
is_systemd = True
|
||||
else:
|
||||
# fallback list-unit-files as show does not work on some systems (chroot)
|
||||
# not used as primary as it skips some services (like those using init.d) and requires .service/etc notation
|
||||
(rc, out, err) = module.run_command("%s list-unit-files '%s'" % (systemctl, unit))
|
||||
if rc == 0:
|
||||
is_systemd = True
|
||||
else:
|
||||
# Check for systemctl command
|
||||
module.run_command(systemctl, check_rc=True)
|
||||
|
||||
# Does service exist?
|
||||
found = is_systemd or is_initd
|
||||
if is_initd and not is_systemd:
|
||||
module.warn('The service (%s) is actually an init script but the system is managed by systemd' % unit)
|
||||
|
||||
# mask/unmask the service, if requested, can operate on services before they are installed
|
||||
if module.params['masked'] is not None:
|
||||
# state is not masked unless systemd affirms otherwise
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s'" % (systemctl, unit))
|
||||
masked = out.strip() == "masked"
|
||||
|
||||
if masked != module.params['masked']:
|
||||
result['changed'] = True
|
||||
if module.params['masked']:
|
||||
action = 'mask'
|
||||
else:
|
||||
action = 'unmask'
|
||||
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
# some versions of system CAN mask/unmask non existing services, we only fail on missing if they don't
|
||||
fail_if_missing(module, found, unit, msg='host')
|
||||
|
||||
# Enable/disable service startup at boot if requested
|
||||
if module.params['enabled'] is not None:
|
||||
|
||||
if module.params['enabled']:
|
||||
action = 'enable'
|
||||
else:
|
||||
action = 'disable'
|
||||
|
||||
fail_if_missing(module, found, unit, msg='host')
|
||||
|
||||
# do we need to enable the service?
|
||||
enabled = False
|
||||
(rc, out, err) = module.run_command("%s is-enabled '%s' -l" % (systemctl, unit))
|
||||
|
||||
# check systemctl result or if it is a init script
|
||||
if rc == 0:
|
||||
enabled = True
|
||||
# Check if the service is indirect or alias and if out contains exactly 1 line of string 'indirect'/ 'alias' it's disabled
|
||||
if out.splitlines() == ["indirect"] or out.splitlines() == ["alias"]:
|
||||
enabled = False
|
||||
|
||||
elif rc == 1:
|
||||
# if not a user or global user service and both init script and unit file exist stdout should have enabled/disabled, otherwise use rc entries
|
||||
if module.params['scope'] == 'system' and \
|
||||
is_initd and \
|
||||
not out.strip().endswith('disabled') and \
|
||||
sysv_is_enabled(unit):
|
||||
enabled = True
|
||||
|
||||
# default to current state
|
||||
result['enabled'] = enabled
|
||||
|
||||
# Change enable/disable if needed
|
||||
if enabled != module.params['enabled']:
|
||||
result['changed'] = True
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
module.fail_json(msg="Unable to %s service %s: %s" % (action, unit, out + err))
|
||||
|
||||
result['enabled'] = not enabled
|
||||
|
||||
# set service state if requested
|
||||
if module.params['state'] is not None:
|
||||
fail_if_missing(module, found, unit, msg="host")
|
||||
|
||||
# default to desired state
|
||||
result['state'] = module.params['state']
|
||||
|
||||
# What is current service state?
|
||||
if 'ActiveState' in result['status']:
|
||||
action = None
|
||||
if module.params['state'] == 'started':
|
||||
if not is_running_service(result['status']):
|
||||
action = 'start'
|
||||
elif module.params['state'] == 'stopped':
|
||||
if is_running_service(result['status']) or is_deactivating_service(result['status']):
|
||||
action = 'stop'
|
||||
else:
|
||||
if not is_running_service(result['status']):
|
||||
action = 'start'
|
||||
else:
|
||||
action = module.params['state'][:-2] # remove 'ed' from restarted/reloaded
|
||||
result['state'] = 'started'
|
||||
|
||||
if action:
|
||||
result['changed'] = True
|
||||
if not module.check_mode:
|
||||
(rc, out, err) = module.run_command("%s %s '%s'" % (systemctl, action, unit))
|
||||
if rc != 0:
|
||||
module.fail_json(msg="Unable to %s service %s: %s" % (action, unit, err))
|
||||
# check for chroot
|
||||
elif is_chroot(module) or os.environ.get('SYSTEMD_OFFLINE') == '1':
|
||||
module.warn("Target is a chroot or systemd is offline. This can lead to false positives or prevent the init system tools from working.")
|
||||
else:
|
||||
# this should not happen?
|
||||
module.fail_json(msg="Service is in unknown state", status=result['status'])
|
||||
|
||||
module.exit_json(**result)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in New Issue