@Marvin What is clusterUid or PREFECT_KUBERNETES_CLUSTER_UID needed for? Can I just use fake value here. Currently I have issued deploying it to the cluster as the role in using doesn’t have access to live-system namespace

The

_PREFECT_KUBERNETES_CLUSTER_UID_

environment variable is used as a unique identifier for the Kubernetes cluster. Prefect uses the persistent UID of the

kube-system

namespace as this identifier because the

kube-system

namespace is immutable. Allowed Workarounds: - If the

kube-system

namespace cannot be accessed due to role limitations, you can manually set the

PREFECT_KUBERNETES_CLUSTER_UID

environment variable. This will prevent Prefect from attempting to read the

kube-system

namespace. For more details, see this GitHub issue discussion. Would you like to know how to set this variable in your deployment scripts?

@Marvin so I can set fake value? It is just a sanity check?

Yes, you can set a fake value for

PREFECT_KUBERNETES_CLUSTER_UID

if your role does not have access to the

kube-system

namespace. This setup acts as a workaround for identifying the cluster and allows Prefect to proceed without accessing the

kube-system

namespace. However, ensure that the value you set is consistent across all your Prefect deployments interacting with the same cluster to avoid any unexpected behavior. For example:

yaml
- name: PREFECT_KUBERNETES_CLUSTER_UID
  value: "your-fake-uid"

You can add this to your deployment configuration or environment variables. For more details, you can check this GitHub issue.