This Terraform recipes simplifies creation of Container Linux Ignition configs.
Typically CoreOS ignition scripts ran once right after installation on clean machines.
coreos-customkit allows wiping root partition and rerun new scripts again to cut development cycle.
It simulates fast, automated and reproducible CoreOS development environment using iPXE provisioning with Qemu and Matchbox.
- Linux host machine with KVM
- Terraform +provider-libvirt +provider-matchbox
- LibVirt with QEmu configured (virt-manager is also recommended)
- Docker and Docker-Machine
- Download CoreOS assets:
data/get-coreos - Generate Matchbox RPC certificates:
( cd cert; ./cert-gen ) - Put your ssh key into
terraform.tfvars - Initialize Terraform plugins:
terraform init - Launch matchbox first:
terraform apply -target docker_container.matchbox - Run everything else:
terraform apply - Wait until CoreOS installed:
ssh 172.50.0.21 journalctl -u installer.service --follow docker-machine create --driver generic --generic-ip-address=172.50.0.21 --generic-ssh-user=core coreos-display
- Edit your CL config:
cl/display.yaml.tmpl - Apply it into matchbox:
terraform apply - Reboot VM to GRUB
- Press 'e' and add
coreos.first_boot=1to kernel cmdline - Update certs:
docker-machine regenerate-certs coreos-display
Stock CoreOS distribution have no graphics enable by default.
Using this custom CL config we enabled /dev/fb0 and ALSA devices on CoreOS to play videos.
terraform apply example will launch mplayer container that streams Big Buck Bounty into VM framebuffer.
Open virt-manager to view it.