Easy way to start novnc.

docker-compose.yml

name: novnc

services:
  novnc:
    build:
      context: .
      dockerfile: ./Dockerfile
    ports:
      - 127.0.0.1:6080:6080
    restart: always
    healthcheck:
      test: ['CMD', 'curl', '-f', 'http://127.0.0.1:6080/vnc.html']
      interval: 2s
      timeout: 10s
      retries: 5

Dockerfile-novnc

FROM alpine:3.14 AS installer

RUN apk update && apk add --no-cache git python2 procps && \
    mkdir -p /app && \
    wget -qO- https://github.com/novnc/noVNC/archive/v1.6.0.tar.gz | tar xz --strip 1 -C /app && \
    chmod +x /app/utils/novnc_proxy && \
    git clone https://github.com/novnc/websockify /app/utils/websockify

FROM python:3.14.0a5-bullseye

WORKDIR /app
COPY --from=installer /app /app

RUN pip3 install --no-cache-dir numpy

CMD /app/utils/novnc_proxy --vnc host.docker.internal:5900