ehashman / molecule-demo

Molecule for Ansible Role Testing Demonstration for AnsibleFest 2017

AnsibleFest 2017 Molecule Demo

Let's learn how to use Molecule!

The recording of this talk and demo is available on the AnsibleFest 2017 website.

Installation

We'll need a working python installation (including development headers), virtualenv, and any system dependencies of Ansible (namely, OpenSSL).

On Debian-based systems, you can run:

$ sudo apt-get install gcc python-dev python-pip python-virtualenv \
                       python-vagrant libssl-dev libffi-dev

Then we'll need to create a virtual environment:

~/ansible-role$ virtualenv ~/virtualenvs/ansiblefest
New python executable in /home/elana/virtualenvs/ansiblefest/bin/python
Installing setuptools, pip...done.

And activate it:

~/ansible-role$ source ~/virtualenvs/molecule/bin/activate
(molecule) ~/ansible-role$

Now we can install molecule. I recommend that we install the latest stable release of v1; otherwise, v2 will install by default, and this presentation is based around v1.

(molecule) ~/ansible-role$ pip install molecule==1.25.0
...
Successfully installed ansible-2.3.2.0 ansible-lint-3.4.12 anyconfig-0.7.0
  arrow-0.10.0 binaryornot-0.4.4 chardet-3.0.4 click-6.7 colorama-0.3.7
  cookiecutter-1.5.1 flake8-3.3.0 future-0.16.0 jinja2-time-0.2.0 mccabe-0.6.1
  molecule-1.25.0 pbr-2.1.0 pexpect-4.2.1 poyo-0.4.1 ptyprocess-0.5.2 py-1.4.34
  pycodestyle-2.3.1 pycrypto-2.6.1 pyflakes-1.5.0 pytest-3.2.1
  python-dateutil-2.6.1 sh-1.12.13 tabulate-0.7.7 testinfra-1.5.5
  whichcraft-0.4.1