WIP: This will be improved upon to be platform-aware but the devops jobs will be automatically updated when that happens

Installation

Ansible is a Python application so it can be installed using Pip or Homebrew. To use Pip;

$ sudo pip install ansible

Once it has installed it should be possible to run the following command from $TIS-DEVOPS

$ ansible jenkins -i ansible/inventory/build -m ping
10.1.0.4 | SUCCESS => {
    "changed": false, 
    "ping": "pong"
}

Creating a new stack

Check out $TIS-DEVOPS
Create a new directory under docker/stacks/:stack_name
Add a docker-compose.yml in that new directory. If your application needs environment variables then use an env_file section, i.e.
```
env_file:
  - ./:stack_name.env
```
Create new playbook under ansible/ directory that matches your service name
Add the hosts to the Ansible inventory file for platforms you are targetting.
Create a Jinja template under ansible/roles/docker_compose/templates/:stack_name.env.j2
Commit and push your changes to Github.
Create a deploy job in Jenkins by copying the 'revalidation-dev-deploy' job and changing the export STACK=revalidation to match your stack name.