MQTT with Python and Pi: Labs

Install the nodered docker container: docker run -it --net="host" --privileged --device /dev/mem -v ~/node-red-data:/data --name nodered iotinafrica/node-red-docker:rpi

-i = interactive
-t = assign tty
-p = bind container-internal port to outside port (in this case, so we can view the webserver on p 1883)
--name
--net="host" = use host networking, so the docker container shares the networking stack with the docker host. means we don't need to mess around with bridge networking, port forwarding etc.
 -v ~/node-red-data:/data = binds the containers `data` directory to a `node-red-data` folder on the host so we can save configuration between docker sessions.

= docker create && docker start

ctrl-p ctrl-q to detach

docker start nodered docker attach nodered

sudo /etc/init.d/mosquitto start

(create repo in hub.docker.com) docker pull iotinafrica/nodered

update image: https://docs.docker.com/get-started/part2/#publish-the-image

docker build -t mylocalnodered .
docker run docker run -it --net="host" --privileged --device /dev/mem -v ~/node-red-data:/data mylocalnodered
docker tag mylocalnodered iotinafrica/node-red-docker:rpi
docker push iotinafrica/node-red-docker:rpi
docker run --net="host" -it iotinafrica/node-red-docker:rpi