deploy.yaml

# Clones and builds the application on the server
# Assumes a working Play deployment (via pvm: https://github.com/kaiinkinen/pvm) and Git are available
# WARNING: if your server has low memory (like a Micro EC2 instance) the build step may fail due to the OOM manager killing it. Enable swap or add more memory to the server.
# Run with: ansible-playbook -i hosts.ini deploy.yaml -u ubuntu 
---
- hosts: ec2Instance
  vars:
  - ubuntu_release: quantal
  - user: ubuntu
  - group: ubuntu
  - home: /home/ubuntu
  - repo_url: git://github.com/pvillega/personal-page.git 
  - repo_remote: origin
  - repo_version: master
  - play_version: 2.1.0
  - pvm_path: ${home}/pvm/install/$play_version
  - dest: ${home}/projectClone
  - project_version: 1.2
  - project: personal-page-$project_version


  tasks:
   - name: Remove old checkouts (just in case they are still in there)
     action: file path=${dest} state=absent

   - name: Checkout project from Git
     action: git repo=$repo_url dest=$dest remote=$repo_remote version=$repo_version

   # Create distribution async, polling every 10s (Default) for a max of 15m (60s * 15m = 900s)
   - name: Create Dist deployment
     action: shell cd ${dest} && ${pvm_path}/play dist 
     async: 900

   # We ignore errors as there may be no running Java process	
   - name: Kill old processes to free ports and memory and so we can redeploy
     action: command killall java -q
     ignore_errors: yes

   - name: Remove old deployment folder
     action: file path=${home}/$project state=absent

   - name: Remove old zip file
     action: file path=${home}/$project.zip state=absent

   - name: Copy zip to home folder
     action: command cp ${dest}/dist/$project.zip ${home}/
 
   - name: Unpack project
     action: command unzip $project.zip chdir=${home} 
 
   - name: Copy start script from source
     action: command cp ${dest}/start ${home}/$project/start 
   
   - name: Chmod start script in project
     action: file path=${home}/$project/start mode=0755 

   - name: Remove old zip file (let's clean the house a bit)
     action: file path=${home}/$project.zip state=absent

   - name: Remove old checkouts (let's clean the house a bit)
     action: file path=${dest} state=absent
 
   # Launch project (asynchronously with fire-and-forget behaviour)
   - name: Launch project
     action: shell nohup ${home}/$project/start  
     async: 10
     poll: 0