Add dockerfile to build image for red hat certification

[FushuWang]

Motivation

The red hat container certification requires the container:

• To use the base image registry.access.redhat.com/ubi8/ubi from red hat.
• Have labels: name, vendor, maintainer, version, release, summary, description.
• Use a non-root user, but User nonroot:nonroot will cause pod error no users found.
• Have a directory licenses with licenses file under the root path.

Modifications

• Add a new dockerfile redhat.Dockerfile.
• Add an Apache 2.0 license file.
• Add a new docker build command in Makefile.

Verifying this change

I have tested the new image, it can pass the preflight check of the red hat container certification.

• Make sure that the change passes the CI checks.

Documentation

Check the box below.

Need to update docs?

• no-need-doc

[freeznet]

@nlu90 is it acceptable to use Apache 2.0 license?

[nlu90]

@nlu90 is it acceptable to use Apache 2.0 license?

It's okay to use it