# CodeBuild ECR Base

This module is the building blocks for the AWS CodeBuild projects.  It has the
foundational pieces for using codebuild to build Linux software / RPMs. You may
need to compile an RPM for a specific release of an OS, and CodeBuild by default only
has Docker images for Amazon Linux 2 and Ubuntu.  So part of this builds RHEL Docker
images so that you can compile software in a RHEL userspace.

It builds these resources:

* IAM role for Codebuild jobs to run and be launched by Eventbridge (codebuild-role)
* S3 bucket for holding Codebuild artifacts (xdr-codebuild-artifacts)
* ECR Repos for OS-specific containers
* Codebuild jobs to `docker build` containers for the OS-specific containers
  * RHEL 7
  * RHEL 8
  * RHEL 9 beta (not working right now)

The ECR repo and related codebuild jobs use a submodule.  The OS-specific containers are
rebuilt daily to keep them up to date with the latest RHEL patches.