WeatherClockV2

Same, but better. This time with a raspberry pi and Go

Dev notes

Build for the pi

env GOOS=linux GOARCH=arm GOARM=5 go build -o wc-pi ./cmd/weatherclock/weatherclock.go

Install on pi w

• Create a file called wc.json (note, that file is in our .gitignore b/c of the token). It should have this content

  {
      "DARKSKY_TOKEN": "DARKSKY_TOKEN_GOES_HERE",
      "LATITUDE": 0.00000,
      "LONGITUDE": -0.00000,
      "DARKSKY_POLL_SEC": 120
  }

• Copy files to the raspberry pi. Everything below assumes the pi w has ssh enabled already

  • the executable you just built above

    scp wc-pi [email protected]:~

  • the fcserver executable

    scp fcserver-rpi [email protected]:~

  • the configuration file that has our environment variables

    scp wc.json [email protected]:~

  • the service configuration for fcserver

    scp fcserver.service [email protected]:~

  • the service configuration for weatherclock

    scp weatherclock.service [email protected]:~

  • TODO: the onoff shim stuff...

• move files on the pi w to their correct locations

  • ssh to the pi w

    ssh [email protected]

  • move the files (you'll need to be root to do this so...)

    # become root
    sudo -i
    
    # place the executables. yeah root is gonna run it all. should come back this later...
    mkdir /usr/weatherclock
    mv /home/pi/fcserver-rpi /usr/weatherclock/
    mv /home/pi/wc-pi /usr/weatherclock/
    chmod a+x /usr/weatherclock/*
    chown -R root:root /usr/weatherclock
    
    # place the configuration file
    mv /home/pi/wc.json /etc/default
    chown -R root:root /etc/default/wc.json
    
    # setup both of our executables to run as services
    mv /home/pi/fcserver.service /etc/systemd/system/
    mv /home/pi/weatherclock.service /etc/systemd/system/
    chown root:root /etc/systemd/system/fcserver.service
    chown root:root /etc/systemd/system/weatherclock.service
    
    # run the services at startup
    systemctl enable fcserver
    systemctl enable weatherclock
    systemctl start fcserver.service
    systemctl start weatherclock.service