bitkeks / scs-bootstrap-clusterstacks-openstack

Automated setup script for Cluster Stacks on OpenStack

This script bootstraps Cluster Stacks on OpenStack, namely the SCS gx-scs environment.

Quick-start source: https://github.com/SovereignCloudStack/cluster-stacks/blob/f971bbaf53aef6231c1c0825f611259528a7593f/README.md

Run create_all.sh with bash or zsh and follow the displayed instructions.

Pre-requirements

CLI tools

As stated in the source README, you need the following CLI tools:

• kind (works with both Docker and Podman)
• kubectl
• helm
• clusterctl
• jq

Go with envsubst is not needed here because it is replaced with Python.

Config files

• gh-pat: plain text file that contains your Github PAT
• clouds.yaml: credentials from your OpenStack project
• cluster_def.yaml: from the repo ("Create the workload cluster resource (SCS-User/customer)")
• clusterstack_def.yaml: from the repo ("Create Cluster Stack definition (CSP/per tenant)")

Cleaning up

1. Delete the cluster resource like so (kubectl targets the Cluster Stacks management cluster): kubectl -n hkthn delete clusters hkthn-cluster
2. Delete the KinD cluster (run on local machine): kind delete clusters hkthn

Additional notes

OpenStack CLI client

If you have the OpenStack CLI client installed, you can also make use of the app-cred-*-openrc.sh file:

1. source <(openstack complete)
2. source app-cred-*-openrc.sh

The CLI tool helps with cleaning up OpenStack resources if something went wrong and the UI is too annoying.

Cilium in workload k8s cluster

The networking in the workload clusters is managed by Cilium.

Via kubectl, you can for example check the state with: kubectl -n kube-system exec -ti cilium-4ww5k -- cilium status.

Of course you can also install the cilium binary on your local machine and aim it at the workload cluster as well.