Utility scripts to add new kernels into JupyterLab docker extension. Before start, install the extension as it described here.
To add the desired kernel, launch a terminal and execute the following:
~ % docker exec -ti --user root jupyter_embedded_dd_vm /bin/sh -c "curl -s https://raw.githubusercontent.com/CaptainApollo/jupyter/main/addJava.sh | bash"
~ % docker exec -ti --user root jupyter_embedded_dd_vm /bin/sh -c "curl -s https://raw.githubusercontent.com/CaptainApollo/jupyter/main/addGo.sh | bash"
Finally, restart the extension (close, then reopen) to complete installation.