Accessing the GUI of a Docker container can be a bit tricky due to Docker’s architecture, which is optimized for isolating services and running them headlessly. However, it is possible although not always recommended as running a GUI applications inside Docker defies the purpose of having lightweight containers.
Still, if needed, a few approaches can involve:
1. Using Docker Volumes: This approach involves installing a Desktop Environment and a VNC server in your Docker container and then accessing that server can reveal the GUI. X11 Server can also be installed from docker host and can be shared with containers using docker volumes.
1. Using X11 Forwarding: One of the solutions is to use X11 and SSH. With X11, you could use the host X11 display from within the container.
1. Using a Web Server: You can install a web server on your Docker container that serves the GUI elements to a webpage, which you can then access.
Each of these techniques has its own requirements and caveats and their use depends on the specific needs of your project.
Remember that Docker is typically used for server-side applications, and GUI applications may not be the best fit for this technology.
