Ansible playbook to deploy Drupal

deploy.yml

---
- hosts: all
  gather_facts: no
  tasks:
   - name: Backup database
     shell: "{{ item }}"
     with_items:
      - mkdir -p ~jenkins/dbbackups
      - drush @{{ shortname }}_{{ env }} sql-dump --skip-tables-key=common | gzip > ~jenkins/dbbackups/{{ shortname }}_{{ env }}_prior_to_{{ build }}.sql.gz

   - name: Clone repo as new build
     git:
      repo: "{{ repo }}"
      dest: /home/jenkins/{{ shortname}}_{{ env }}_{{ build }}
      version: "{{ branch }}"
      accept_hostkey: yes

   - name: Move build into position
     command: mv /home/jenkins/{{ shortname}}_{{ env }}_{{ build }} /var/www/{{ shortname}}_{{ env }}_{{ build }}
     sudo: true

   - name: Assign symlinks
     command: "{{ item }} chdir=/var/www/{{ shortname}}_{{ env }}_{{ build }}/www/sites/{{ url }}"
     with_items:
      - ln -s /var/www/shared/{{ shortname }}_{{ env}}.settings.inc settings.php
      - ln -s /var/www/shared/{{ shortname }}_{{ env}}_files files

   - name: Harden permissions
     shell: "{{ item }}"
     with_items:
      - find /var/www/{{ shortname}}_{{ env }}_{{ build }} -type d -print0 | xargs -0 -r chmod 555
      - find /var/www/{{ shortname}}_{{ env }}_{{ build }} -type f -print0 | xargs -0 -r chmod 444
     sudo: true

   - name: Test new build
     shell: chdir=/var/www/{{ shortname}}_{{ env }}_{{ build }}/www/sites/{{ url }} drush status

   - name: Maintenance mode on
     command: drush @{{ shortname }}_{{ env }} -y vset maintenance_mode 1

   - name: Apply updates
     shell: chdir=/var/www/{{ shortname}}_{{ env }}_{{ build }}/www/sites/{{ url }} drush -y updatedb
     register: result
     ignore_errors: true
   - debug: var=result.stderr.split('\n')

   - name: Revert database
     shell: if [ -f ~jenkins/dbbackups/{{ shortname}}_{{ env }}_prior_to_{{ build }}.sql.gz ]; then drush -y @{{ shortname }}_{{ env }} sql-drop; zcat ~jenkins/dbbackups/{{ shortname}}_{{ env }}_prior_to_{{ build }}.sql.gz | drush @{{ shortname }}_{{ env }} sql-cli; exit 1; fi
     when: result|failed

   - name: Maintenance mode off
     command: drush @{{ shortname }}_{{ env }} -y vset maintenance_mode 0

   - name: Clear cache
     command: drush @{{ shortname }}_{{ env }} -y cc all

   - name: Take new build live
     command: "{{ item }} chdir=/var/www"
     with_items:
      - unlink live.{{ shortname }}.{{ env }}
      - ln -s {{ shortname}}_{{ env }}_{{ build }} live.{{ shortname }}.{{ env }}
      - drush @{{ shortname }}_{{ env }} cc all
     sudo: true

   - name: Remove old builds to conserve disk space
     command: /usr/local/bin/remove_old_builds.sh -d /var/www -r {{ shortname }} -b {{ env }} -k 5
     sudo: true