For years, /etc/rc.local has been a staple in Linux administration, providing a straightforward means to execute scripts or commands automatically upon system startup. However, with the transition to newer init systems like systemd, the /etc/rc.local script is no longer executed at boot time.

Ansible tasks that restore the /etc/rc.local script

The following Ansible tasks will create and configure /etc/rc.local and also ensure its execution by Systemd at boot time.

---
# Description: Reintegrate /etc/rc.local in Linux systems that use Systemd 
#              as their init system.
# Author: James Cherti
# License: MIT
# URL: https://www.jamescherti.com/ansible-config-etc-rc-local-linux-systemd/

- name: Check if /etc/rc.local exists
  stat:
    path: "/etc/rc.local"
  register: etc_rc_local_file

- name: Create the file /etc/rc.local should it not already exist
  copy:
    dest: /etc/rc.local
    owner: root
    group: root
    mode: 0750
    content: |
      #!/usr/bin/env bash
  when: not etc_rc_local_file.stat.exists

- name: Create the systemd service rc-local.service
  register: rc_local
  copy:
    dest: /etc/systemd/system/rc-local.service
    owner: root
    group: root
    mode: 0644
    content: |
      [Unit]
      Description=/etc/rc.local compatibility

      [Service]
      Type=oneshot
      ExecStart=/etc/rc.local
      TimeoutSec=0
      RemainAfterExit=yes
      SysVStartPriority=99

      [Install]
      WantedBy=multi-user.target

- name: Reload systemd daemon
  systemd:
    daemon_reload: yes
  when: rc_local.changed|bool

- name: Enable rc-local.service
  systemd:
    name: rc-local
    enabled: true
Code language: YAML (yaml)