[FEA] Drop support for CentOS7

[sameerz]

Is your feature request related to a problem? Please describe.
Drop support for CentOS7, as it will be end of life mid-2024, per https://www.redhat.com/en/topics/linux/centos-linux-eol

Describe the solution you'd like
Support for Rocky 8, Ubuntu 20.04, 22.04 will continue

Describe alternatives you've considered
RAPIDS is dropping support per https://docs.rapids.ai/notices/rsn0037/ , so I am not sure there are many alternatives

Additional context
rapidsai/build-planning#23

[GaryShen2008]

Assign to myself first to figure out which OS we should use to run the build to support all the OSs. Mainly it's the problem about Glibc compatibility.

[bdice]

@GaryShen2008 After dropping CentOS 7, the oldest glibc of any OS supported by RAPIDS will be glibc 2.28, which is used by Rocky Linux 8. Ubuntu 20.04 uses 2.31 and Ubuntu 22.04 uses 2.35. (Also noted in this issue: rapidsai/build-planning#23)

Based on that, you'll probably want to build on Rocky Linux 8.

[sameerz]

@GaryShen2008 After dropping CentOS 7, the oldest glibc of any OS supported by RAPIDS will be glibc 2.28, which is used by Rocky Linux 8. Ubuntu 20.04 uses 2.31 and Ubuntu 22.04 uses 2.35. (Also noted in this issue: rapidsai/build-planning#23)

Is the glibc version valid for both x86 and ARM on Rocky8 and Ubuntu 20.04?

[bdice]

@sameerz Yes, each distro uses the same glibc version on x86-64 and ARM. The glibc version just varies with the OS version.

Also, I just merged rapidsai/shared-workflows#192 which removes CentOS 7 from the RAPIDS 24.06 build/test matrix.

[NvTimLiu]

Built out amd64/arm64 spark-rapids-jni jars on Rocky8, running integration tests with spark-rapids to see if any GLIBC issues.

[NvTimLiu]

PR to drop CentOS7 build for spark-rapids-jni: NVIDIA/spark-rapids-jni#2010

PR to drop CentOS7 build for cuDF JNI: rapidsai/cudf#15608