• All credit for Pi.Alert goes to pucherot/Pi.Alert.
• The Docker image is available at jokobsk/Pi.Alert - Docker Hub.
• The source Docker file is available on GitHub jokob-sk/ Docker-Image-for-Pi.Alert.

• Network
  • You will have to probably run the container on the host network, e.g: sudo docker run --rm --net=host jokobsk/pi.alert
• Port
  • The container runs on the port :20211.
• UI URL
  • The UI is located on <host IP>:20211/pialert/

Please note - the cronjob is executed every 1, 5 and 15 minutes so wait that long for all of the scans to run.

1. Download pialert.conf and version.conf from here.

2. Backup your configuration by:

   • Mapping the container folder /home/pi/pialert/config to your own folder containing pialert.conf and version.conf.

   OR

   • Mapping the files individually pialert.conf:/home/pi/pialert/config/pialert.conf and version.conf:/home/pi/pialert/config/version.conf

3. In pialert.config specify your network adapter (will probably be eth0 or eth1) and the network filter, e.g. if your DHCP server assigns IPs in the 192.168.1.0 to 192.168.1.255 range specify it the following way:

   • SCAN_SUBNETS = '192.168.1.0/24 --interface=eth0'

4. Set the TZ environment variable to your current time zone (e.g.Europe/Paris). Find your time zone here.

5. Database backup

   • Automated copy The docker image creates a DB copy once every 30 min by copying the DB to /home/pi/pialert/config/pialert.db_bak.

     If you have a backup already available, make sure you rename this file if you want to keep older backups before starting a new container.

     • You can backup the DB by also ad-hoc by running the follow command in the container:

       • cp /home/pi/pialert/db/pialert.db /home/pi/pialert/config/pialert.db_bak

     • Restoring the DB:

       • cp /home/pi/pialert/config/pialert.db_bak /home/pi/pialert/db/pialert.db

   • Alternative approach: Storing the DB on your own volume

         volumes:
           - pialert_db:/home/pi/pialert/db

A full config example can be found below.

Courtesy of pbek. The volume pialert_db is used the db directory. The two config files are mounted directly from a local folder to their places in the config folder. You can backup the docker-compose.yaml folder and the docker volumes folder.

  pialert:
    image: jokobsk/pi.alert
    ports:
      - "80:20211/tcp"
    environment:
      - TZ=Europe/Vienna
    networks:
      local:
        ipv4_address: 192.168.1.2
    restart: unless-stopped
    volumes:
      - pialert_db:/home/pi/pialert/db
      - ./pialert/pialert.conf:/home/pi/pialert/config/pialert.conf
      - ./pialert/version.conf:/home/pi/pialert/config/version.conf

Disclaimer: This is my second container and I might have used unconventional hacks so if anyone is more experienced, feel free to fork/create pull requests. Also, please only donate if you don't have any debt yourself. Support yourself first, then others.