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Troubleshoot Traffic Director GKE service mesh deployments

This guide contains information for resolving issues with Gateway API service mesh deployments.

Information in the status field

All Gateway API resources have a status field that reflects the status of resources from the controller perspective. In addition to the status field, the controller appends events to Gateway API resources to provide information about its operations on those resources.

For example, use the following commands to inspect the status and events of a TDMesh:

kubectl describe tdmesh td-mesh

The output is similar to the following:

...
Status:
  Conditions:
    Last Transition Time:  1970-01-01T00:00:00Z
    Message:               Waiting for controller
    Reason:                NotReconciled
    Status:                False
    Type:                  Scheduled
Events:
...

The previous status indicates that the controller has not started to reconcile this particular mesh. If this status lasts for more than 5 minutes with no events appended, read the following section, Controller does not seem to reconcile a TDMesh resource to further troubleshoot the issue.

You can use a similar method to debug issues related to other resources, such as HTTPRoute, TCPRoute, and other routing resources.

Usually, the statuses and events indicate the underlying issue.

Controller does not seem to reconcile a TDMesh resource

To diagnose the issue, confirm that a gke-td GatewayClass exists:

kubectl get gatewayclasses

The output should include a GatewayClass named gke-td.

NAME             CONTROLLER
gke-td           networking.gke.io/gateway

If a GatewayClass with that name is not returned, follow Install the required custom resource definitions to confirm all required CRDs are installed in the config cluster, then reenable the hub feature for the Traffic Director Google Kubernetes Engine service mesh with the following commands:

  1. Disable the feature:

    gcloud container hub ingress disable
    
  2. Re-enable the feature:

    gcloud container hub ingress enable \
      --config-membership=/projects/PROJECT_ID/locations/global/memberships/gke-1