---
# This playbook backups the odroid docker containers.
- name: Backup odroid
  hosts: all
  become: false
  gather_facts: true

  tasks:
    - include_vars: vars/secret.yaml
    - include_vars: vars/variable.yaml

    - name: Check if directories exist
      stat:
        path: "{{ backup_dir }}/{{ item }}"
      register: dirs
      loop: "{{ systems }}"

    - name: Create not existing directories
      file:
        path: "{{ backup_dir }}/{{ item.item }}"
        state: directory
        mode: 0755
        group: chris
        owner: chris
      when: item.stat.exists == false
      with_items: "{{ dirs.results }}"
      loop_control:
        label: "{{ item.item }}"
    
    - name: Backup mysql databases
      shell: docker exec mysql8 mysqldump -u{{ mysql_user }} -p{{ mysql_password }} {{ item }} > {{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql
      loop: "{{ mysql_databases }}"
    
    - name: Backup postgres databases
      shell: docker exec psql14 pg_dump -U {{ postgres_user }} {{ item }} > {{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql
      loop: "{{ postgres_databases }}"
        
    - name: Compress database backup files
      shell: gzip {{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql
      loop: "{{ databases }}"

    - name: Check logrotate directories
      stat:
        path: "{{ backup_dir }}/{{ item[0] }}/{{ item[1] }}"
      register: subdirs
      with_nested:
        - "{{ systems }}"
        - ['daily', 'weekly', 'monthly', 'yearly']
      loop_control:
        label: "{{ item[0] }} {{ item[1] }}"

    - name: Create not existing logrotate directories
      file:
        path: "{{ backup_dir }}/{{ item.item[0] }}/{{ item.item[1] }}"
        state: directory
        mode: 0755
        group: chris
        owner: chris
      when: item.stat.exists == false
      with_items: "{{ subdirs.results }}"
      loop_control:
        label: "{{ item.item[0] }} {{ item.item[1] }}"

    - name: Store the yearly backups
      copy:
        remote_src: true
        src: "{{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
        dest: "{{ backup_dir }}/{{ item }}/yearly/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
      loop: "{{ databases }}"
      when: (ansible_date_time.day == "01" and ansible_data_time.month == "01")
    
    - name: Store the monthly backups
      copy:
        remote_src: true
        src: "{{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
        dest: "{{ backup_dir }}/{{ item }}/monthly/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
      loop: "{{ databases }}"
      when: (ansible_date_time.day == "01" and ansible_data_time.month != "01")
    
    - name: Store the weekly backups
      copy:
        remote_src: true
        src: "{{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
        dest: "{{ backup_dir }}/{{ item }}/weekly/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
      loop: "{{ databases }}"
      when: (ansible_date_time.weekday_number == "7")

    - name: Store the daily backups
      copy:
        remote_src: true
        src: "{{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
        dest: "{{ backup_dir }}/{{ item }}/daily/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
      loop: "{{ databases }}"
      when: (ansible_date_time.weekday_number != "7" and ansible_date_time.day != "01")
      
    - name: Cleanup original backup files
      file:
        path: "{{ backup_dir }}/{{ item }}/{{ ansible_date_time.iso8601_basic_short }}.sql.gz"
        state: absent
      loop: "{{ databases }}"

    - name: Find old daily backups
      find:
        paths: "{{ backup_dir }}/{{ item }}/daily"
        file_type: file
        age: 8d
        age_stamp: ctime
        patterns: '*.sql.gz'
        recurse: false
      register: oldBackups
      loop: "{{ databases }}"

    - name: Delete old daily backups
      file:
        path: "{{ item.path }}"
        state: absent
      with_items: "{{ oldBackups.results | map(attribute='files') | list }}"
      loop_control:
        label: "{{ item.path }}"

    - name: Find old weekly backups
      find:
        paths: "{{ backup_dir }}/{{ item }}/weekly"
        file_type: file
        age: 5w
        age_stamp: ctime
        patterns: '*.sql.gz'
        recurse: false
      register: oldBackups
      loop: "{{ databases }}"

    - name: Delete old weekly backups
      file:
        path: "{{ item.path }}"
        state: absent
      with_items: "{{ oldBackups.results | map(attribute='files') | list }}"
      loop_control:
        label: "{{ item.path }}"

    - name: Find old monthly backups
      find:
        paths: "{{ backup_dir }}/{{ item }}/monthly"
        file_type: file
        age: 56w
        age_stamp: ctime
        patterns: '*.sql.gz'
        recurse: false
      register: oldBackups
      loop: "{{ databases }}"

    - name: Delete old monthly backups
      file:
        path: "{{ item.path }}"
        state: absent
      with_items: "{{ oldBackups.results | map(attribute='files') | list }}"
      loop_control:
        label: "{{ item.path }}"