Running ansible in a docker container

Building ansible container:

git clone https://github.com/openshift/openshift-ansible.git
cd openshift-ansible
docker build --rm -t ansible .

Create /etc/ansible directory on the host machine and copy inventory file (hosts) into it.
Copy ssh public key of the host machine to master and nodes machines in the cluster.

Running the ansible container:

docker run -it --rm --privileged --net=host -v ~/.ssh:/root/.ssh -v /etc/ansible:/etc/ansible ansible