As a starting point, here's what we currently have in EL8:

Five packages comprise the guest environment. Below shows the package name, along with its source repo. The READMEs give an overview of each package.

Packages:
# google-guest-agent:
* Repo: https://github.com/GoogleCloudPlatform/guest-agent
* Spec: https://github.com/GoogleCloudPlatform/guest-agent/blob/master/packaging/google-guest-agent.spec

# google-compute-engine-oslogin:
* Repo: https://github.com/GoogleCloudPlatform/guest-oslogin
* Spec: https://github.com/GoogleCloudPlatform/guest-oslogin/blob/master/packaging/google-compute-engine-oslogin.spec

# google-compute-engine:
* Repo: https://github.com/GoogleCloudPlatform/guest-configs
* Spec: https://github.com/GoogleCloudPlatform/guest-configs/blob/master/packaging/google-compute-engine.spec

# gce-disk-expand:
* Repo: https://github.com/GoogleCloudPlatform/guest-diskexpand
* Spec: https://github.com/GoogleCloudPlatform/guest-diskexpand/blob/master/packaging/gce-disk-expand.spec

# google-osconfig-agent:
* Repo: https://github.com/GoogleCloudPlatform/osconfig
* Spec: https://github.com/GoogleCloudPlatform/osconfig/blob/master/packaging/google-osconfig-agent.spec

This shows the dependency structure: https://packages.cloud.google.com/yum/repos/google-compute-engine-el8-x86_64-stable/repodata/primary.xml

logging package request: https://bugzilla.redhat.com/show_bug.cgi?id=1920606

Update:
- Common logging package is done: https://src.fedoraproject.org/rpms/golang-github-googlecloudplatform-guest-logging
- In-review:
- systemd presets: https://bugzilla.redhat.com/show_bug.cgi?id=1926331
- google-guest-agent: https://bugzilla.redhat.com/show_bug.cgi?id=1925322
- google-compute-engine: https://bugzilla.redhat.com/show_bug.cgi?id=1925323

This is the MVP. After this, we have the opportunity for:
1. Updating oslogin: https://src.fedoraproject.org/fork/ericedens/rpms/google-compute-engine-oslogin
2. Upstreaming osconfig and disk-expand

All done with the core agents! I'm good to close this.

@ericedens - next step to get it into the built image - should we wait on that before we close?

sounds good; here's the PR for putting the agents in the GCP kickstart: https://pagure.io/fedora-kickstarts/pull-request/812

This is basically done now, with Rawhide images now using them.