I have a pod in which i have image ubuntu desktop i connect to this image via xrdp what i want to do is to add eclipse image to this pod in other words when i connect to this ubuntu desktop i can find eclipse.
I am going to create platform based on kubernetes with image catalog. For example a profesor of java want only ubuntu desktop and eclipse. He gonna choose from catalog ubuntu and eclipse all backend i will do it myself. So when a student connect he will find eclipse on ubuntu desktop.
You have to create an image from a dockerfile recipe that includes a command for installing the eclipse package.
Then you can use your own image for the deployment into the cluster (instead of the ubuntu image you are using today).
Please read up how to create a docker container and dockerfile documentation.
You can also take a look at an example dockerfile.