How can I set up GitLab CI/CD to automatically build and deploy a Dockerized Python application on every code push?

Automating a Dockerized Python app is relatively easy. Go over the steps below:

1. Start by creating a `.gitlab-ci.yml` file in your repository to define the CI/CD pipeline changes.
2. Configure the stages for building the Docker image, testing the application, and deploying it.
3. Then, use GitLab I/CD variables to store sensitive information like Docker Hub credentials or API keys securely. You can also set up a GitLab Runner to execute the CI/CD pipeline jobs.
4. Finally, use GitLab CI/CD triggers or webhooks to automatically start the pipeline on code pushes or merge requests.