Add multiple kernels to jupyterlab

FROM jupyter/scipy-notebook:latest

RUN conda create -n myenv3 -q
RUN source activate myenv3; pip install ipykernel; 
RUN python -m ipykernel install --user --name myenv3 --display-name "myenv3 from docker"

I used this dockerfile to create a conda environment and add it in the kernel. The conda environment is getting added in the location but it is not showing up on the kernel.

image

How should we add it in the kernel ?