python-coreos

This role installs python and some packages for using Ansible

Configure your project

[coreos]
123.432.12.123

[coreos:vars]
ansible_ssh_user=core
ansible_python_interpreter=/opt/bin/python

This will configure ansible to use the python interpreter at /home/core/bin/python which will be created by the coreos-bootstrap role.

Bootstrap Playbook

Now you can simply add the following to your playbook file and include it in your site.yml so that it runs on all hosts in the coreos group.

- hosts: coreos
  gather_facts: False
  roles:
    - hesidoryn.python-coreos

Make sure that gather_facts is set to false, otherwise ansible will try to first gather system facts using python which is not yet installed!

Example Playbook

After bootstrap, you can use ansible as usual to manage system services, install python modules (via pip), and run containers. Below is a basic example that starts the etcd2 service and then uses the ansible docker module to pull and start a basic nginx container.

- name: Nginx Example
  hosts: coreos
  sudo: true
  tasks:
    - name: Start etcd2
      service: name=etcd2.service state=started

    - name: pull container
      raw: docker pull nginx:latest

    - name: launch nginx container
      docker:
        image="nginx:latest"
        name="example-nginx"
        ports="8080:80"
        state=running