Dockerfile and related SystemD unit file for running rtl_433 inside Docker on a Raspberry Pi (or other arm32v7 system). By default the SystemD unit file is set up to send output over MQTT. Useful for easily getting the output of 433MHz temperature sensors into Home Assistant.
Just copy rtl_433.service to /etc/systemd/system/rtl_433.service on your Pi. Modify HOST, USER, PORT, and PASS to match your setup. You'll probably also want to modify the -R 20 line for whatever sensors you want to read. johnboiles/rtl_433 should be pulled from Docker Hub automatically.