terraform-docker-packer/examples/raspios/README.md

RaspiOS

Build a ARM64 device image based on RaspiOS.
The Packer config will run some scripts located at ./scripts through the Shell provisioner in order to setup and configure the device image.
In addition, Firstboot will be configured to run an additional setup scripts during first boot of the device.

Provisioning

# run the Packer build
terraform init
terraform apply

# show build progress
docker logs -f $(docker ps -q -f name=packer-builder-arm)

The image will have ssh enabled and user pi configured with password raspberry.
To change password for the user, modify ./scripts/pi.sh. Generate another password with:

openssl passwd -6

Firstboot

This example contains a Systemd service and script that will run at first boot and sets the hostname to rpi-SERIAL so that each device gets a unique hostname.
Adopted from https://github.com/nmcclain/raspberian-firstboot