Docker container for running molecule, with in-container support for the Docker driver.
I built this primarily to use with ConcourseCI, for testing roles in pipelines, using Docker in Docker.
It relies on the docker-lib.sh file for wrapping docker commands, provided by Concourse, and entrykit.
You might need to start up rsyslogd in your concourse task definition, depending on your configured molecule log_driver.
Here's an example task definition that works for me:
platform: linux
image_resource:
type: docker-image
source:
repository: gaahrdner/molecule
tag: "latest"
inputs:
- name: ansible
run:
path: /bin/sh
args:
- -exc
- |
rsyslogd
source /usr/local/bin/docker-lib.sh
start_docker
cd ansible || exit
ansible-galaxy install -r requirements.yml
cd roles/my_role || exit
molecule test