automation/deployer/roles/build/tasks/backup.yml

---
# Needs variables:
#   - site: dict describing the site install (cf group_vars/all/vars.yml)
#   - site_data_path: path of the site's data


- name: "Setup periodic site files backup"
  blockinfile:
    path: "/etc/logrotate.d/{{ site.slug }}"
    marker: "# {mark} DATA BACKUP"
    create: yes
    block: |
      {{ backups_path }}/{{ site.slug }}.tar.gz {
        prerotate
          tar czf {{ backups_path }}/{{ site.slug }}.tar.gz {{ site_data_path }}
        endscript
        weekly
        rotate 4
        nocompress
        dateext
        dateformat _%Y-%m-%d
        extension .tar.gz
        missingok
        su www-data www-data
        nocreate
      }
  become: yes
  when: site_data_path is defined

- name: "Setup periodic MySQL database backup"
  blockinfile:
    path: "/etc/logrotate.d/{{ site.slug }}"
    marker: "# {mark} DATABASE BACKUP"
    create: yes
    block: |
      {{ backups_path }}/{{ site.slug }}.sql.gz {
        prerotate
          mysqldump {{ site.mysql_database }} | gzip -c > {{ backups_path }}/{{ site.slug }}.sql.gz
        endscript
        weekly
        rotate 4
        nocompress
        dateext
        dateformat _%Y-%m-%d
        extension .sql.gz
        missingok
        su www-data www-data
        nocreate
      }
  become: yes
  when: site.mysql_database is defined

- name: "Setup periodic PostgreSQL database backup"
  blockinfile:
    path: "/etc/logrotate.d/{{ site.slug }}"
    marker: "# {mark} DATABASE BACKUP"
    create: yes
    block: |
      {{ backups_path }}/{{ site.slug }}.sql.gz {
        prerotate
          sudo -u postgres pg_dump {{ site.postgres_database }} | gzip -c > {{ backups_path }}/{{ site.slug }}.sql.gz
        endscript
        weekly
        rotate 4
        nocompress
        dateext
        dateformat _%Y-%m-%d
        extension .sql.gz
        missingok
        su www-data www-data
        nocreate
      }
  become: yes
  when: site.postgres_database is defined