---
- name: backup_ovh1
  hosts: localhost
  gather_facts: false
  vars_files: main.yml
  tasks: 
    - name: Assert environment variable is not empty
      ansible.builtin.include_tasks: "tasks/assert_env_var_not_empty.yml"
      with_items: "{{ BACKUP_OVH1_REQUIRED_ENV_VARS }}"

    - name: Create backup directory
      ansible.builtin.file:
        path: "{{ WORKDIR }}/backup"
        state: directory

    - name: Archive volumes
      ansible.builtin.command: "tar -czf {{ WORKDIR }}/backup/{{ item }}.tar.gz -C /mnt/volumes {{ item }}"
      with_items: "{{ BACKUP_OVH1_VOLUMES }}"

    - name: Find lastest MySQL DB dump
      ansible.builtin.shell: "ls -tr /mnt/volumes/mysql-server_dumps/data/mysql_dump-mysql_*"
      register: MySQL_dump

    - name: Find lastest applications DB dump
      ansible.builtin.shell: "ls -tr /mnt/volumes/mysql-server_dumps/data/mysql_dump_*"
      register: DBs_dump

    - name: Archive DB dumps
      ansible.builtin.command: "tar -czf {{ WORKDIR }}/backup/mysql-server_dumps.tar.gz -C /mnt/volumes {{ MySQL_dump.stdout_lines | last }} {{ DBs_dump.stdout_lines | last }}"
      with_items: "{{ BACKUP_OVH1_VOLUMES }}"

# python3-swiftclient is a requirement of duplicity
    - name: Install python3-swiftclient
      ansible.builtin.package:
        name: python3-swiftclient
        state: present

    - name: Backup with duplicity
      ansible.builtin.command: "duplicity --num-retries 3 --full-if-older-than 1M --progress --archive-dir {{ ARCHIVE_DIR }} --name {{ lookup('env','BACKUP_WORKFLOW') }} --allow-source-mismatch '{{ WORKDIR }}/backup' swift://{{ lookup('env','BACKUP_WORKFLOW') }}"
      environment: "{{ DUPLICITY_ENVIRONMENT }}"

    - name: Clean old duplicity backups
      ansible.builtin.command: "duplicity remove-older-than 2M --archive-dir {{ ARCHIVE_DIR }} --name {{ lookup('env','BACKUP_WORKFLOW') }} --allow-source-mismatch --force swift://{{ lookup('env','BACKUP_WORKFLOW') }}"
      environment: "{{ DUPLICITY_ENVIRONMENT }}"