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Configuration Management with Ansible

Create an Ansible playbook that build, push and then run the Docker image for the Python application. Let your playbook has the following variables:

  • image_name - contains the name of your image without the tag, i.e. vutoff/python-app
  • image_tag - contains the tag you tagged your image with, i.e. v0.2
  • listen_port - contains the listening port you're binding your app to.

Make sure that you set environment variable PORT when you define your container in the Ansible playbook that takes its value from listen_port variable.

Use Ansible modules. Do not shell out.

Requirements

  • Make sure you have Python installed. Any version above 3.8 would suffice.
  • The requirements.txt file in this directory contains the required Ansible version. Run
pip install -r requirements.txt
  • Make sure that Docker is running on your local machine.

Mind the following

  • If you're running Docker Desktop, mind the location of the docker.sock file. The location of the socket file is

    • Docker Desktop - ${HOME}/.docker/run/docker.sock

  • If you're using one of the above, when you write your Ansible playbook you must specify the path to the docker socket with the parameter docker_host, i.e. docker_host: "unix://{{ ansible_env.HOME }}/.rd/docker.sock".