Hands on 1 - Discovering

    The goal of this hands-on is to:

    • Locally run a Flatcar instance
    • Boot the instance and SSH into
    • Run Nginx container on the instance

    Step-by-step

    Create a working directory:

    mkdir flatcar; cd flatcar

    Get the qemu helper:

    wget https://stable.release.flatcar-linux.net/amd64-usr/current/flatcar_production_qemu.sh

    Get the latest stable release for qemu:

    wget https://stable.release.flatcar-linux.net/amd64-usr/current/flatcar_production_qemu_image.img

    Create a backup to always have a fresh image around:

    mv flatcar_production_qemu_image.img flatcar_production_qemu_image.img.fresh

    Make the qemu helper executable:

    chmod +x flatcar_production_qemu.sh

    Before starting, make sure you boot a fresh image:

    cp -i --reflink=auto flatcar_production_qemu_image.img.fresh flatcar_production_qemu_image.img

    Starts the flatcar image in console mode:

    ./flatcar_production_qemu.sh -- -display curses

    NOTE: it’s possible to connect to the instance via SSH:

    $ cat ~/.ssh/config
Host flatcar
	User core
	StrictHostKeyChecking no
	UserKnownHostsFile /dev/null
	HostName 127.0.0.1
	Port 2222
$ ssh flatcar

    Once on the instance, you can try things and run a docker image:

    docker run --rm -p 80:80 -d nginx

    Assert it works:

    curl localhost

    Resources

    Demo

    Edit this page File documentation issue