Describe the possible Kubernetes deployment scenarios in more detail

[dadrus]

... and which further steps should be done after the deployment of heimdall

[netthier]

It might be useful to mention https://cert-manager.io/docs/projects/trust-manager/ for getting the CAs to mount into the container, should connectivity to external services be required. It's cleaner than manually creating and maintaining ConfigMaps containing 3rd party certificates.