Ansible

This is an ansible playbook that deploys docker and a single-node kubernetes cluster on a remote host and deploys and smaple application on it.

For the roles we use the ones from user geerlingguy from github:

• docker role: https://github.com/geerlingguy/ansible-role-docker.git
• kubernetes role: https://github.com/geerlingguy/ansible-role-kubernetes.git

The custom role (deploy role) does the following:

• Installs the python dependencies for k8s and docker_image ansible modules
• Pulls the code from github and build a docker image
• Deploys the pods on kubernetes as a replica set of 2
• deploys a service with the nodeport configuration (uses round-robin load balancing by default)

The app is accessible via http://YOUR_SERVER_IP:30080

To run the playbook, get the code:

git clone https://github.com/ravenolf/soramitsu-test-ansible --recursive
cd soramitsu-test-ansible

Add the private key as keys/id_ansible_rsa or remove this line from ansible.cfg if you want to use your host private key:

private_key_file = keys/id_rsa_ansible

Change the host on hosts.ini.

Run the playbook:

ansible-playbook main.yml

Variables can be changed in main.yml

Sources

• https://github.com/geerlingguy
• https://github.com/geerlingguy/ansible-for-devops