docker-compose.yml

---
version: '3.4'

services:
  voctocore:
    image: c3voc/voctomix
    command: core
    container_name: voctocore
    networks:
      voctomix:
        aliases:
          - corehost
  source_cam1:
    image: c3voc/voctomix
    command: gstreamer/source-videotestsrc-as-cam1.sh
    container_name: source_cam1
    depends_on:
      - voctocore
    networks:
      - voctomix
  source_bg:
    image: c3voc/voctomix
    command: gstreamer/source-videotestsrc-as-background-loop.sh
    container_name: source_bg
    depends_on:
      - voctocore
    networks:
      - voctomix
  voctogui:
    image: c3voc/voctomix
    command: gui
    container_name: voctogui
    depends_on:
      - voctocore
    environment:
      DISPLAY: :0
      uid: ${UID}
      gid: ${GID}
    volumes:
      - type: bind
        source: /tmp/vocto/configgui.ini
        target: /opt/voctomix/voctogui/config.ini
      - type: bind
        source: /tmp/.X11-unix
        target: /tmp/.X11-unix
      - type: bind
        source: /tmp/.docker.xauth
        target: /tmp/.docker.xauth
    networks:
      - voctomix

networks:
  voctomix:
...