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Raspberry Pi Cluster

Flash OS​

  1. Set the Disable eMMC Boot Jumper on the Raspberry Pi
  2. Mount the eMMC storage on another linux PC
sudo apt install git libusb-1.0-0-dev pkg-config
git clone --depth=1 https://github.com/raspberrypi/usbboot
cd usbboot
make
sudo ./rpiboot

  1. Download the Raspberry Pi Os Image from here

  2. Unpack the image

unxz 2022-09-22-raspios-bullseye-arm64-lite.img.xz
  1. Copy the image
sudo dd bs=1M if=2022-09-22-raspios-bullseye-arm64-lite.img of=/dev/sda

To see dd's progress

sudo kill -USR1 $(pgrep ^dd$)
  1. Setup SSH Server and create a user
sudo mkdir -p /mount/boot
sudo mount /dev/sda1 /mount/boot
sudo touch /mount/boot/ssh
sudo nano /mount/boot/userconf
# put into this file: <user>:<encrypted_password>
# encrypted_password you get by running:
echo 'mypassword' | openssl passwd -6 -stdin

sudo umount /mount/boot

Docker​

From here.

sudo apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release
sudo mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose-plugin

Test it with

sudo docker run hello-world

Gitlab​

Setup A Gitlab instance:

docker run \
  --rm \
  -it \
  --name gitlab-ce \
  --privileged \
  --memory 4096M \
  --publish 23:22 \
  --publish 80:80 \
  --publish 443:443 \
  --hostname gitlab.example.com \
  --env GITLAB_OMNIBUS_CONFIG=" \
    nginx['redirect_http_to_https'] = true; "\
  --volume $HOME/gitlab/conf:/etc/gitlab:z \
  --volume $HOME/gitlab/logs:/var/log/gitlab:z \
  --volume $HOME/gitlab/data:/var/opt/gitlab:z \
  yrzr/gitlab-ce-arm64v8:latest

Change admin password

sudo docker exec -it <container-id> gitlab-rake "gitlab:password:reset[root]"

Gitlab Runner​

Official Installation Instructions

  • Configure
docker run \
  --rm \
  --network=host \
  -it \
  -v $HOME/gitlab-runner/etc:/etc/gitlab-runner \
  gitlab/gitlab-runner register
  • Run
docker run --name gitlab-runner -d \
  --network=host \
  -v $HOME/gitlab-runner/etc:/etc/gitlab-runner \
  -v $HOME/gitlab-runner/srv:/srv/gitlab-runner/config \
  -v /var/run/docker.sock:/var/run/docker.sock \
  gitlab/gitlab-runner:latest