Containers

11 skills in 3 steps, from “Build and run containers” to “Understand what isolates a container”.

Start · Run containers, persist data and connect them All skills

11 skills to acquire in this domain
3 steps in the order you learn them
0/11 acquired from your progress, in this browser
1 prerequisite domain to know before starting here

Your path

The domain's steps

In the order you learn them: each step builds on the previous one. Your status is computed in your browser, from what you have read and passed (quizzes, labs).

1

Build and run containers

5 skills
See the 5 skills
- Run containers, persist data and connect them 5 lessons · ~3 h 45 · then its quiz
- Build an OCI image 4 lessons · ~3 h 15 · then its quiz
- Operate and troubleshoot Docker containers: lifecycle, logs, inspection and daemon 2 lessons · ~1 h 35 · then its quiz
- Secure the installation and the containers 3 lessons · ~2 h 35 · then its quiz
- Publish an image to a registry: access token, tag, digest and publishing from CI 1 lesson · ~40 min · then its quiz
2

Containerize without a daemon or root with Podman

3 skills
See the 3 skills
- Set up rootless Podman and explain its daemonless model 2 lessons · ~1 h 10
- Group containers into pods and replay a Kubernetes manifest locally 2 lessons · ~1 h 20
- Run Podman containers as systemd services with Quadlet 1 lesson · ~1 h 20
3

Understand what isolates a container

3 skills
See the 3 skills
- Explain and inspect a Linux container's isolation: namespaces, cgroups, capabilities, seccomp 3 lessons · ~1 h 55 · then its quiz
- Read an OCI image and check its integrity: index, manifest, config, layers and digests 3 lessons · ~2 h 05 · then its quiz
- Place and drive a container's execution layers: OCI runtime, engine and orchestrator 3 lessons · ~1 h 30 · then its quiz

The domain's steps

Build and run containers

Containerize without a daemon or root with Podman

Understand what isolates a container