arnaudblancher.docker_provisionning

Goal : take an ansible inventory and create one docker container for each listed hosts.

After you can deploy your favorite ansible playbook on theses docker-inventory and make easily and safely full tests in a new and clean environnement without new virtual machines.

Afer your tests, just destroy theses dockers with ansible role arnaudblancher.docker_unprovisonning

Requirements

• docker-engine

Make sure your have a docker-engine running, test with (probably as root ...)

docker info

If you need, install docker-engine

Here, docker-engine 1.11 on Debian Jessie

apt-get remove docker.io python-docker
apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
echo 'deb https://apt.dockerproject.org/repo debian-jessie main' > /etc/apt/sources.list.d/docker.list
apt-get update
apt-get install docker-engine python-docker

On Ubuntu Trusty,

replace python-docker

by :

sudo apt-get install python-pip
sudo pip install docker-py

Role Variables

please see defaults/main.yml

Dependencies

None

Example Playbook

Please see subdirectory ./demo/

cat demo/docker-provisionning.yml

- name: "create all docker image and containers for all hosts listed in inventory"
  hosts: localhost
  gather_facts: no

  roles:
    - { role : arnaudblancher.docker_provisionning,
      docker_provisionning_net: "ansible_myplateform" }

cat inventory/docker/000_hosts

[mysql]
# use the default docker_provisionning_image configure in defaults/main.yml
dock_mysql

[apache]
# specify a specific docker_provisionning_image for this container
dock_apache docker_provisionning_image="ubuntu1604"

[jmeter]
# Optionnal docker_provisionning_dockerfile specify an alternate dockerfile path outside the role;
# the path must be relative to roles/arnaudblancher.docker_provisionning/dockerfiles/
dock_jmeter docker_provisionning_image="jmeter2.13private"  docker_provisionning_dockerfile="../../../local_files/dockerfiles/jmeter2.13private"

[all:vars]
ansible_connection=docker

cat group_vars/all

# override the default/main.yml os for docker_provisionning
docker_provisionning_image: "ubuntu1404"

cat inventory/docker/group_vars/all

# add host aliases for containers
docker_provisionning_aliases:
  dock_mysql:
    - "bdd01"
    - "bdd02"
  dock_apache:
    - www01
    - www02
    - www03

call :

ansible-playbook  -i inventory/docker/ docker-provisionning.yml

License

GPLv3

Author Information

Arnaud Blancher

https://github.com/arnaudblancher/ansible-role-docker_provisionning