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Developing against the source

This app is comprised of 4 Docker containers:

  • rtsp-server: mediamtx
    • This is what serves the converted rtsps stream into a WebRTC stream for the browser
  • rtsp-clients: Uses a Node.js container to lauch the streams with ffmpeg and publish them to rtsp-server
  • mqtt: Connects to the printers to their local MQTT server
    • It then parses the topics and cleans up some of the data, then publishes a WebSocket server for the browser to listen to
  • app: Node.js Express web app that serves the page, loads the streams and listens to the WebSocket server.

What I do

Comment out the app portion of the docker-compose.yaml file:

#  app:
#    build:
#      dockerfile: ./app/Dockerfile
#    depends_on:
#      - rtsp-server
#      - rtsp-clients
#      - mqtt
#    ports:
#      - "9000:9000"

Now start the containers: docker-compose up --build

In another terminal, cd app && ./index.js

This way you can work on the Express app without having to build to container all the time.

Each of the containers can pretty much run by themselves as well if you want to work on them too.