---
- hosts: app_servers
  user: "{{deploy_user}}"

  tasks:
    - name: Ensure vendor path exists
      file: path="{{vendor_path}}" owner="{{deploy_user}}" group="{{deploy_user}}" state=directory
      sudo: yes
      notify: restart uwsgi

    - name: Upload the SSH key
      copy: src=~/.ssh/id_rsa dest=/tmp/id_rsa_deployment mode=600

    - name: Configure GIT_SSH script file
      copy: dest=/tmp/git_ssh.sh mode=700
        content='exec /usr/bin/ssh -o StrictHostKeyChecking=no -i /tmp/id_rsa_deployment "$@"'

    - name: Backup PostgreSQL DB data
      shell: "python /usr/local/bin/psl_backup_postgresql.py"
      sudo: yes
      sudo_user: postgres

    - name: Checkout app from git repo
      git: repo="ssh://git@bitbucket.org/greenden/psl_server.git" dest="{{vendor_path}}" force=yes
        update=yes version="{{branch_name_to_deploy}}" accept_hostkey=yes
      environment:
        GIT_SSH: /tmp/git_ssh.sh
      notify: reload uwsgi

    - name: Generate app settings file psl_settings.cfg
      template: src=templates/psl_settings.cfg dest=/etc/psl_settings.cfg mode=0751
        owner=www-data group=www-data
      sudo: yes
      notify: reload uwsgi

    - name: Ensure log path exists
      file: path="{{vendor_path}}"/logs owner=www-data group=www-data state=directory
      sudo: yes

    - name: install PostgreSQL dev environment
      apt: pkg=libpq-dev update_cache=yes state=present
      sudo: yes

    - name: clean pip build cache
      command: "rm -rf /tmp/pip-build-root"
      sudo: yes

    - name: Install requirements via pip
      pip: requirements="{{vendor_path}}"/requirements.txt
      sudo: yes
      notify: reload uwsgi

    - name: create celery config for supervisord
      template: src=templates/supervisor_celeryd.conf dest=/etc/supervisor/conf.d/celeryd.conf
      sudo: yes
      notify: reload supervisor


  handlers:
    - name: reload uwsgi
      command: touch "{{vendor_path}}"/serv.py
      sudo: yes
      notify:
        - post-deployment hook
        - reload celery

    - name: restart uwsgi
      service: name=uwsgi state=restarted
      sudo: yes
      notify:
        - post-deployment hook
        - reload celery

    - name: post-deployment hook
      shell: "cd {{vendor_path}} && PSL_SERVER_SETTINGS='/etc/psl_settings.cfg' python -c 'import serv; serv.post_deployment_hook()'"
      sudo: yes
      sudo_user: www-data

    - name: reload supervisor
      shell: supervisorctl reread && supervisorctl update
      sudo: yes
      notify: reload celery

    - name: reload celery
      command: supervisorctl reload celery
      sudo: yes