An Ubuntu docker image running noVNC

Base Docker Image

Ubuntu 22.04 (x64)

Get the image from Docker Hub or build it locally

docker pull fullaxx/novnc
docker build -t="fullaxx/novnc" github.com/Fullaxx/novnc

Run the image (using fullaxx/ubuntu-desktop as working example)

noVNC will listen on port 8080 inside the container.
Run the image on 172.17.0.1, pointing to VNC server at 172.17.0.1:5901

docker run -d --rm -p 172.17.0.1:5901:5901 fullaxx/ubuntu-desktop
docker run -d -e VNCADDR=172.17.0.1:5901 -p 172.17.0.1:80:8080 fullaxx/novnc
Browse to http://172.17.0.1:80/

Run the image using an SSL cert called novnc.pem found in /tmp/cert
Make sure to volume mount the certificate in /cert

docker run -d --rm -p 172.17.0.1:5901:5901 fullaxx/ubuntu-desktop
docker run -d -e VNCADDR=172.17.0.1:5901 -p 172.17.0.1:80:8080 -e CERTFILE=novnc.pem -v /tmp/cert:/cert fullaxx/novnc
Browse to https://172.17.0.1:80/

Quick note on using localhost

In the above example we used the IP address of the docker0 interface (172.17.0.1)
This was done intentionally. You can substitute any IP address that is not localhost (127.0.0.1)
If you were to take the above example and replace 172.17.0.1 with 127.0.0.1 it would likely not work
because the localhost of the vnc server is not reachable from inside the novnc container.
You can use --network=host to avoid this issue, or bind to any non-localhost IP address.

Create a self-signed certificate

For a quick example on SSL certificate creation, go here

Posting Issues on Github

When posting issues, please provide the following:

• docker run line used to create the novnc container and the vnc server container
• output from docker logs
• screenshot showing the issue if not described in logs
• any other relevant networking information