Docker on the Pi

10 Lektionen in dieser Stufe

1. Containers Versus Virtual Machines Versus Virtual Environments
   Explain what a container isolates and what it shares with the host. · Lab: Compare the process list and filesystem inside and outside a running container.
2. Installing Docker Engine on Raspberry Pi OS
   Install from the vendor repository and run Docker without sudo. · Lab: Install Docker Engine, add your user to the docker group and run a test container.
3. Running, Stopping and Inspecting Containers
   Manage the container lifecycle and read logs and state. · Lab: Run a web server container, read its logs, open a shell inside it and remove it.
4. Volumes and Bind Mounts for Persistent Data
   Keep data when a container is replaced. · Lab: Run a database container, delete it and show the data survives in a named volume.
5. Ports, Bridge Networks and Container DNS
   Publish services and let containers find each other by name. · Lab: Create a network, run two containers and have one call the other by name.
6. Writing a Dockerfile for a Python App
   Build a small, cache-friendly image of your Flask project. · Lab: Write a Dockerfile, build the image and compare its size with a slimmer base.
7. Multi-Container Stacks with Docker Compose
   Describe a whole application in one file and bring it up together. · Lab: Write a Compose file for the app and a reverse proxy with restart policies.
8. Passing GPIO, I2C and Cameras into Containers
   Give a container access to specific devices without full privileges. · Lab: Read the BME280 from inside a container by mapping only the I2C device.
9. ARM64 Images and Multi-Architecture Builds
   Choose images that run on the Pi and build for it from a PC. · Lab: Build an arm64 image on a laptop with buildx and run it on the Pi.
10. Updating, Pruning and Limiting Containers
    Keep stacks current, reclaim space and cap resource use. · Lab: Update the stack to a new image tag, prune old images and set a memory limit.

Abschlussprojekt

Your dashboard, its database volume and a reverse proxy running as a Compose stack that survives reboots and updates with one command.

Teile für diese Stufe

• 1 × Raspberry Pi 5 or Pi 4 (4 GB or more recommended) set from Level 1
• 1 × Sensor node hardware from Level 11

In jeder Lektion legst du die passenden Teile direkt in den Warenkorb. Raspberry Pi →