rolling_execute.yml

# Playbook that executes a shell command using a rolling restart approach.
# This can be useful to apply a rolling docker restart or to download/pull a new docker image.
#
# Example:
#   ansible-playbook -i nau-data/envs/<env>/hosts.ini rolling_execute.yml --limit <group> -e command='ls /tmp'
#
# Example that executes multiple commands:
#   ansible-playbook -i nau-data/envs/<env>/hosts.ini rolling_execute.yml --limit openedx_docker_servers -e "command='docker pull overhangio/openedx-forum:14.0.0 && docker pull overhangio/openedx-notes:14.0.1 && docker pull overhangio/openedx-discovery:14.0.2 && docker pull nauedu/openedx-analytics-data-api:nau-nutmeg.master-XXXXXX-build-yy && docker pull nauedu/openedx-insights:nau-nutmeg.master-XXXXX-build-yy && docker pull nauedu/openedx:nau-nutmeg.master-build-XXX-YYYYYYY'"
#
# Example that restarts the Open edX LMS and Studio:
#   ansible-playbook -i nau-data/envs/<env>/hosts.ini rolling_execute.yml --limit openedx_docker_servers -e "command='make -C /nau/ops/openedx restart-lms restart-cms'"
---
- hosts: all
  serial: "{{ serial_number | default(1) }}"
  become: True
  gather_facts: True
  vars:
    rolling_deploy_enabled: true
  tasks:
    - name: Check if 'command' is defined
      assert:
        that: command is defined
        fail_msg: You need to add a 'command' parameter
        quiet: true

    - import_tasks: tasks/close_node.yml

    - name: Print stdout of command output
      debug:
        msg: "Executing command: {{ command }}"

    # Real execute the command
    - name: Real execute command
      shell: "{{ command }}"
      register: exec_output

    - name: Print stdout of command output
      debug:
        msg: "{{ exec_output.stdout_lines }}"
      when: exec_output is defined and exec_output.stdout_lines is defined

    - name: Print stderr of command output
      debug:
        msg: "{{ exec_output.stderr_lines }}"
      when: exec_output is defined and exec_output.stderr_lines is defined

    - import_tasks: tasks/healthcheck.yml
    - import_tasks: tasks/open_node.yml