deploy.yml

- name: Deploy incubator
  hosts: incubator107
  user: incubator

  tasks:
    - set_fact: application_folder=/usr/share/nginx/incubator107
      tags: cleanup
    - set_fact: timestamp={{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}
    - set_fact: release_path={{ application_folder }}/releases/{{ timestamp }}

    - name: checkout from git
      git: repo=https://github.com/cip123/incubator107  dest={{ release_path }}
    
    - name: Symlink shared files
      file:
              src: "{{ application_folder }}/shared/{{ item }}"
              dest: "{{ release_path }}/{{ item }}"
              state: link
              force: yes
      with_items:
        - config/database.yml
        - public/system  
        - pids  
        - log
        - tmp
        - vendor/bundle
    
    - name: Install bundle
      command: 'bundle install --deployment --without="development test"'
      args:
              chdir: "{{ release_path }}"
    
    - name: Precompile assets
      command: bundle exec rake assets:precompile chdir={{ release_path }}
      environment:
              RAILS_ENV: production
    
    - name: Migrate database
      command: bundle exec rake db:migrate chdir={{ release_path }}
      environment:
              RAILS_ENV: production 
    
    - name: Symlink new release
      file:
        src: "{{ release_path }}"
        dest: "{{ application_folder }}/current"
        state: link
        force: yes
    
    - name: Restart nginx
      command: sudo systemctl restart nginx
      tags: nginx
    
    - name: Cleanup
      shell: "ls -1t  {{ application_folder }}/releases | tail -n +5 | xargs rm -rf"
      args: 
        chdir: "{{ application_folder }}/releases"
      tags: cleanup