Calico Node Pods in CrashLoopBackOff: "Unable to get Typha service endpoints from Kubernetes"

Problem

The calico-node pod(s) are in CrashLoopBackOff state and/or constantly restarting.

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NAME                                              READY   STATUS             RESTARTS   AGEcalico-kube-controllers-f6b98779-qfmhh            1/1     Running            1          101dcalico-node-69nk4                                 0/1     CrashLoopBackOff   131        7h37mcalico-node-g7pz7                                 0/1     CrashLoopBackOff   131        7h37mcalico-node-mngnc                                 0/1     Running            130        7h37mcalico-node-p4ktd                                 0/1     CrashLoopBackOff   129        7h37mcalico-node-wlv9t                                 0/1     CrashLoopBackOff   130        7h37mcalico-node-zl5ng                                 0/1     CrashLoopBackOff   129        7h37mcalico-typha-95b7898f5-g559h                      1/1     Running            0          8hcalico-typha-95b7898f5-lmxbw                      1/1     Running            0          8hcalico-typha-95b7898f5-zmn2x                      1/1     Running            0          8h
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The pod log (via kubectl logs) for the calico-node pod(s) shows the following error related to calico-typha .

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[ERROR][68] confd/discovery.go 126: Unable to get Typha service endpoints from Kubernetes. error=endpoints "calico-typha" not found
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Similarly, the following error is recorded in the calico-typha pod(s).

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[ERROR][7] lookup.go 65: Failed to get Typha endpoint from Kubernetes error=endpoints "calico-typha" not found[WARNING][7] rebalance.go 55: Failed to get number of Typhas error=<nil> numTyphas=0 thread="k8s-poll"
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No calico-typha service (separate from the DaemonSet and Deployment objects) exists in the kube-system namespace.

Environment

Platform9 Managed Kubernetes – v5.5
Calico

Cause

The calico-typha service is missing from the kube-system namespace.

Resolution

Create a file calico-typha.yaml with the following content.

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# Source: calico/templates/calico-typha.yaml# This manifest creates a Service, which will be backed by Calico's Typha daemon.# Typha sits in between Felix and the API server, reducing Calico's load on the API server. apiVersion: v1kind: Servicemetadata:  name: calico-typha  namespace: kube-system  labels:    k8s-app: calico-typhaspec:  ports:    - port: 5473      protocol: TCP      targetPort: calico-typha      name: calico-typha  selector:    k8s-app: calico-typha
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Apply the YAML to the affected cluster.

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kubectl apply -f calico-typha.yaml
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Additional Information

Calico – Install Typha

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