Fedora-devcontainer

devcontainer profile and docker file for Fedora 41 image (with podman) for vscode

Folder Structure

• .devcontainer/: Contains the devcontainer configuration files, including devcontainer.json and Dockerfile. These files define the development container environment and its dependencies.
• useful-files/: Contains miscellaneous files that are useful for the project but do not fit into the other categories. This may include configuration files, templates, or other resources.
• fedora-dev-build/: Contains files and configurations specific to building and developing with the Fedora environment. This includes Dockerfiles, build scripts, and other related resources.

Building the Image with Podman

To build the Docker image using Podman, navigate to the directory containing the Dockerfile and run the following command:

podman build -t ghcr.io/wheetazlab/ubi-devcontainer:latest .

or for multiarch

podman manifest create ghcr.io/wheetazlab/ubi-devcontainer:latest
podman buildx build --platform linux/amd64,linux/arm64 --manifest ghcr.io/wheetazlab/ubi-devcontainer:latest .

Pushing the Image to a Repository

To push the built image to a container registry, use the following command:

podman push ghcr.io/wheetazlab/ubi-devcontainer:latest

or for multiarch

podman manifest push ghcr.io/wheetazlab/ubi-devcontainer:latest

GitHub Workflow for Building and Pushing Multi-Arch Image

This repository includes a GitHub Actions workflow that automatically builds and pushes a multi-arch Docker image when a new release is created or the workflow is manually triggered.

The workflow file is located at .github/workflows/build-multi-arch-image-on-release.yml.

I have setup up arc-runners on my lab clusters (5 node RPI cm4 k3s cluster and a 4 node RK1 k3s cluster. The serve as my self-hosted runners and do multiarch builds). See the ansible folder for a sample playbook for creating Github Action Runner Controller for scale set and creating a ARC scale set that uses docker in docker for building.

To trigger the workflow manually, navigate to the "Actions" tab in your GitHub repository, select the "Build Multi-Arch Image on Release" workflow, and click the "Run workflow" button.

The workflow performs the following steps:

1. Checks out the code.
2. Sets up QEMU for multi-arch support.
3. Sets up Docker Buildx.
4. Logs in to the GitHub Container Registry.
5. Builds and pushes the multi-arch Docker image to the GitHub Container Registry.