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Troubleshooting the web terminal

Web terminal and network policies

The web terminal might fail to start if the cluster has network policies configured. To start a web terminal instance, the Web Terminal Operator must communicate with the web terminal’s pod to verify it is running, and the OpenShift Dedicated web console needs to send information to automatically log in to the cluster within the terminal. If either step fails, the web terminal fails to start and the terminal panel is in a loading state until a context deadline exceeded error occurs.

To avoid this issue, ensure that the network policies for namespaces that are used for terminals allow ingress from the openshift-console and openshift-operators namespaces.

The following samples show NetworkPolicy objects for allowing ingress from the openshift-console and openshift-operators namespaces.

Allowing ingress from the openshift-console namespace
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-from-openshift-console
spec:
  ingress:
  - from:
    - namespaceSelector:
        matchLabels:
          kubernetes.io/metadata.name: openshift-console
  podSelector: {}
  policyTypes:
  - Ingress
Allowing ingress from the openshift-operators namespace
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-from-openshift-operators
spec:
  ingress:
  - from:
    - namespaceSelector:
        matchLabels:
          kubernetes.io/metadata.name: openshift-operators
  podSelector: {}
  policyTypes:
  - Ingress