feat: add CoreOS-based immutable image for remote test labs#213
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feat: add CoreOS-based immutable image for remote test labs#213
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Add containerized infrastructure for running labgrid coordinator and exporter on Fedora CoreOS with automatic updates. Components: - Container images for labgrid, pdudaemon, dnsmasq, ser2net - Quadlet systemd units for container management - Butane/Ignition configuration generator - Simple YAML config template for lab setup - GitHub Actions workflow for container builds Features: - Immutable OS with automatic updates via Zincati - Container auto-updates via Podman - VLAN-based device isolation - USB serial device passthrough - TFTP/DHCP for device provisioning
Add simplified lab node setup for Raspberry Pi using Docker Compose: - docker-compose.yml with all services (labgrid, pdudaemon, dnsmasq) - cloud-init user-data for automatic first-boot configuration - setup.sh for manual installation - Watchtower for automatic container updates This provides an easier alternative to Fedora CoreOS for Raspberry Pi based lab nodes, with the same containerized architecture.
Add flash-coreos.sh that: - Downloads Fedora CoreOS aarch64 image - Installs RPi4 UEFI firmware automatically - Generates Ignition from lab-config.yaml - Handles all setup in one command Update README to make CoreOS the primary approach for Raspberry Pi, with Docker/RPi OS as fallback option.
- Add flash-sd.sh: simpler script that just flashes + adds ignition - Update README with multiple methods (coreos-installer, script, manual) - Add -o flag to build-ignition.sh for output file - Remove overcomplicated flash-coreos.sh The key insight: just flash the official image and drop ignition file into /mnt/ignition/config.ign - no complex tooling needed.
No need to install coreos-installer - run it via container: podman run quay.io/coreos/coreos-installer:release install ... flash-sd.sh now: - Uses podman (or docker) to run coreos-installer - Downloads CoreOS image automatically - Adds UEFI firmware for Raspberry Pi - Only requires: podman + unzip + curl
Split into two steps: 1. build-image.sh - generates .img file (no root needed) 2. dd - user flashes manually (only root operation) Image manipulation runs inside fedora container via podman, so no root/sudo needed on the host for building. User workflow: ./build-image.sh config.ign -o labnode.img sudo dd if=labnode.img of=/dev/sdX bs=4M status=progress
build-image.sh now just downloads files to a directory: - fcos.raw.xz (CoreOS image) - uefi/ (RPi firmware) - config.ign (if provided) - flash.sh (simple script user can inspect) No containers, no --privileged. User runs sudo only on flash.sh which they can review first. Workflow: ./build-image.sh config.ign # no root cd coreos-rpi cat flash.sh # inspect if desired sudo ./flash.sh /dev/sdX # user controls this
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Add containerized infrastructure for running labgrid coordinator and
exporter on Fedora CoreOS with automatic updates.
Components:
Features: