Update the installer for CentOS 10.

Review Request #14878 — Created March 5, 2026 and updated

Information

rbinstall
master

Reviewers

This change adds support for CentOS 10. This is substantially the same
as CentOS 9, except there's no epel-next-release repo. Some of the newer
tgagor/centos images also don't include the right gpg keys, so I've
added a test step to turn off gpg verification for yum.

Ran centos install tests (currently arm64 only, will do amd64 once
everything is done).

Summary ID
Update the installer for CentOS 10.
This change adds support for CentOS 10. This is substantially the same as CentOS 9, except there's no epel-next-release repo. Some of the newer tgagor/centos images also don't include the right gpg keys, so I've added a test step to turn off gpg verification for yum. Testing Done: Ran centos install tests (currently arm64 only, will do amd64 once everything is done).
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flake8 passed.
JSHint passed.