Docker and WeeWx

WeeWX - Weather Station Data Gathering

Note, I eventually gave up on installing the weatherflow-udp extention under docker, and just wrote a UDP-to-CGI bridge tool, documented later.  However, I opted to post this anyway because of what I ran into and it could be useful for someone out there (I got fairly close, actually).

This is an interesting tool to accept data for the weather system. I'm using a weatherflow tempest, which means I have a UDP port I have to translate.  Plus, it is a little more complicated than the others we've dealt with.  First, let's create a pre-run form of docker-connect.yaml :

services:
  weewx:
    image: felddy/weewx:latest
    container_name: tempest
    restart: unless-stopped
    ports:
      - "50222:50222/udp" # Map WeatherFlow UDP port
    environment:
      - TZ=America/Boise
    volumes:
      - type: bind
        source: ./weewx-data
        target: /data 

Then, let's create our data directory to grab configuarion files from :

mkdir weewx-data/
chown 1000:1000 weewx-data

Now we can run a "fake" start of the docker image to get the configurations we need :

docker compose run --rm weewx

At this point, the weewx-data/weewx.conf file is ready for manipulation.  Copy the weewx.conf into the docker image directory, then modify it by changing the station name, the latitude and longitude, etc.  Once ready, change your docker-compose.yml file by adding the bind volume for the weewx.conf file, e.g. :

    volumes:
      - type: bind
        source: ./weewx-data
        target: /data

becomes :

    volumes:
      - type: bind
        source: ./weewx-data
        target: /data

Then, start the docker (usual "docker compose up -d").

It is now possible to run and install extensions.  First, just to make sure it's showing, run :

docker exec -it tempest weectl extension list

Then install with : 

docker compose run --rm weewx extension install --yes https://github.com/captain-coredump/weatherflow-udp/archive/refs/heads/master.zip 

Now, it was right about here that I gave up on getting the extension installed.  I'm leaving my notes, just in case.  But really, all I need is a UDP translator, anyway.  I'm not trying to do anything fancy like serve weather data (that will all happen through Grafana, so, yeah).\

On giving up, I just wrote a UDP listener.