/ansible-raspi

Ansible roles for my Raspberry Pi for home automation

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ansible-raspi

The setup of my Raspberry Pi used for home-automation:

  • Raspbian Lite (headless, no UI)
  • docker
  • piVCCU3 (Homematic IP)
  • ioBroker
  • MQTT for e.g. Tasmota plugs
  • InfluxDB for logging from ioBroker
  • Grafana for visualizations

Prepare the SD card

Install Raspbian Lite

  1. Download the image

    curl --location https://downloads.raspberrypi.org/raspbian_lite_latest --output raspbian.zip
unzip raspbian.zip
rm raspbian.zip

  2. Prepare SD card for flashing

    Insert SD card and check its device name and potentially mounted partitions with lsblk -p. Unmount partitions that got mounted automatically by the OS.

    Linux:

    # Find device assigned to the SD card, e.g. /dev/sdc.
lsblk -p
# Unmount.
umount /dev/<from above>

    macOS:

    # Look for something like /dev/disk2 (external, physical).
diskutil list
# Find mount point.
mount | grep /dev/<from above>
# Unmount.
diskutil unmount /Volumes/<path>

  3. Flash the SD card

    sudo dd if=*-raspbian-buster-lite.img of=/dev/<from above> bs=4M

  4. Enable SSH

    SSH is the major way to connect to the Pi, but it is not enabled by default.

    # The mount point may be /media/$USER or /Volumes/boot depending on your OS.
touch <boot volume mount point>/ssh

Optional: Boot from SSD

Connect your external drive or SSD to your computer and perform the same steps as above. You can omit creating the ssh file because the disk's boot partition will not be used.

First boot

Unmount all drives.

umount /dev/<SD card>
umount /dev/<external disk> # Optional.

diskutil unmount /Volumes/<SD card>
diskutil unmount /Volumes/<external disk> # Optional.

Remove the SD card, plug it into the Raspberry Pi. Do not connect the external drive if you want to boot from it (see below). Boot the Pi with connected ethernet. Check its reachability with ping.

ping raspberrypi

ssh pi@raspberrypi

You may run raspi-config to e.g. set up a Wi-Fi connection or a different hostname.

Enable Ansible

$ ssh-copy-id pi@raspberrypi

$ ansible raspberries -a '/bin/echo It works' --become
raspberrypi | CHANGED | rc=0 >>
It works

Optional: Boot from SSD

In order to boot the Raspberry Pi from an external disk we need to do some preparations that are packaged as an ansible role. The role is based on this guide.

  1. Connect the external drive

  2. Run the following command:

    ansible-playbook -t external-boot site.yml