provisioning.yml

---

# common
- hosts: all
  sudo: yes
  gather_facts: no

  tasks:
      - name: Install nginx.
        apt: name={{ item }} state=present update_cache=yes
        with_items:
          - nginx

      - name: Stop Nginx for now.
        service: name=nginx state=stopped enabled=yes

# webservers
- hosts: webservers
  sudo: yes

  tasks:
      - name: Install Node and apache.
        apt: name={{ item }} state=present update_cache=yes
        with_items:
          - nodejs
          - apache2
          - npm

      - name: Install Express.
        npm: name=express global=true

      - name: Make sure Apache is stopped.
        service: name=apache2 state=stopped enabled=yes

      - name: Make sure nginx is started and configure it to run at boot.
        service: name=nginx state=started enabled=yes

      - name: Write our nginx.conf.
        template: src=templates/nginx.conf.j2 dest=/etc/nginx/nginx.conf
        notify: restart nginx

      - name: Write our /etc/nginx/sites-available/default.
        template: src=templates/default-site.j2 dest=/etc/nginx/sites-available/default
        notify: restart nginx

      - name: Deploy website content.
        template: src=templates/index.html.j2 dest=/usr/share/nginx/html/index.html

  handlers:
      - name: restart nginx
        service: name=nginx state=restarted

# loadbalancer
- hosts: lb
  sudo: yes

  tasks:
      - name: Install HAProxy and socat.
        apt: name={{ item }} state=present update_cache=yes
        with_items:
          - haproxy
          - socat

      - name: enable haproxy
        lineinfile: dest=/etc/default/haproxy regexp="^ENABLED" line="ENABLED=1"
        notify: restart haproxy 

      - name: deploy haproxy config
        template: src=templates/haproxy.cfg.j2 dest=/etc/haproxy/haproxy.cfg
        notify: restart haproxy

  handlers:
      - name: restart haproxy
        service: name=haproxy state=restarted