How to find out the base image for a docker image

Question

Easy way is to use

docker image history deno

This above command will give you output like this

enter image description here

Then just look at the IMAGE column and take that image ID which a24bb4013296 which is just above the first <missing>

Then just do the

For Linux

docker image ls | grep a24bb4013296

For Windows

docker image ls | findstr a24bb4013296

This will give you the base image name

enter image description here