Build a DevOps practice plan around one application

A long list of tools can make it difficult to decide what to practise next. One useful approach is to follow a small application through several stages and keep a record of what you changed, checked and learned.

Start with an application you can explain

Choose a small practice application with a clear startup command. Write down its dependencies and how you know it is working. Keep its source and a short README in version control. Use sample data, not customer or production information.

Make the application repeatable

Docker's introductory learning path covers running a container, building an image and sharing a containerized application. Use that sequence to connect the application you know with the container workflow you are learning. Start with the official Docker learning material.

As a practice exercise, ask another learner to follow your README in their own environment. Record anything you had to explain outside the instructions. This gives you a concrete list of gaps to resolve.

Then practise deployment and change

The Kubernetes Basics tutorial introduces deploying, scaling, updating and debugging a containerized application. Work through it after you understand the application and its image. Follow Kubernetes Basics.

For each exercise, record the starting state, the change you made and the evidence that the application still works. An unsuccessful step can be useful too: explain the symptom, the check that helped and the correction.

Use your project to choose a learning path

Before joining a training batch, ask how the syllabus connects to practical work. Useful questions include:

• What should I know about Linux, networking and Git before starting?
• Which projects will I complete and how will feedback be provided?
• What equipment, cloud accounts and paid lab resources are needed?
• Who teaches the batch, and what are the class times and delivery mode?

A project record helps you discuss what you can do and where you need practice. It is evidence of learning, not a guarantee of a job or a certification.