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Docker
10 short modules. Each one: a simple lesson, two quick games and a 8-question quiz for its own free certificate. Finish them all, then take the full Docker certificate.
0 of 10 module certificates
- What is a container?Containers package an app with everything it needs so it runs the same everywhere.0/4
- Images and the DockerfileAn image is a read-only template; a Dockerfile is the recipe that builds it.0/4
- Running containersdocker run starts a container from an image; a few commands manage its life.0/4
- Ports and networkingContainers have their own network; you publish ports so others can reach them.0/4
- Volumes and dataData inside a container is lost when it is removed; volumes keep it safe.0/4
- Environment variables and configPass settings into containers instead of baking them into images.0/4
- Docker ComposeCompose starts a whole multi-container app from one file.0/4
- Registries and sharing imagesRegistries store and share images, like GitHub for containers.0/4
- Smaller and safer imagesSmall, non-root images are faster to ship and harder to attack.0/4
- Docker in the real worldContainers power CI/CD pipelines, Kubernetes and cloud deployments.0/4
🏆 Full Docker certificate
20 questions from basic to advanced, 60% to pass. Best taken after the modules.