The docker images on our trunk are very useful when building the native code for hadoop, it really helped me a lot.
But when using the Centos 7 image, I found that the final dist does not have isa-l support, then I realized that only the default Dockerfile(which is Ubuntu) and the Dockerfile for debian have isa-l installed. We do not install isa-l for Centos 7, Centos 8 and aarch64. I tried to install isa-l in the docker image and build hadoop, it could successfully build the native hadoop library with isa-l support. So here I want to know, is this difference(i.e, installing isa-l for Ubuntu and Debian but not for Centos) intentional, or just a simple typo so we can add it also to the Centos Dockerfile? Thanks.
