- name: Backup MongoDB Databases
  hosts: all
  become: yes
  tasks:
    - name: Backup MongoDB databases
      command: >
        docker exec {{ mongodb_container }} mongodump
        --db {{ item }}
        --username {{ mongodb_user }}
        --password {{ mongodb_password }}
        --authenticationDatabase admin
        --out {{ backup_dir }}
      with_items: "{{ db_names }}"