---
# Sample Ansible Playbook: Rollback Docker Service
# =================================================
# Rollback playbook for undoing service deployments.
#
# Usage:
#   ansible-playbook rollback-service.yml -e service_name=myapp

- name: Rollback Docker Service
  hosts: localhost
  connection: local
  gather_facts: no

  vars:
    service_name: "{{ service_name | mandatory }}"
    remove_volumes: "{{ remove_volumes | default(false) }}"

  tasks:
    - name: Check if container exists
      command: "docker ps -a --filter name={{ service_name }} --format '{{ '{{' }}.Names{{ '}}' }}'"
      register: container_check
      changed_when: false

    - name: Stop container
      command: "docker stop {{ service_name }}"
      when: container_check.stdout != ""
      ignore_errors: yes

    - name: Remove container
      command: "docker rm {{ service_name }}"
      when: container_check.stdout != ""

    - name: Remove associated volumes (optional)
      command: "docker volume rm {{ service_name }}-data"
      when: remove_volumes | bool
      ignore_errors: yes

    - name: Confirm rollback
      debug:
        msg: "Service {{ service_name }} has been rolled back"