Kubernetes aggregated API has reported errors. It has appeared unavailable X times averaged over the past 10m.
From minor such as inability to see cluster metrics to more severe such as unable to use custom metrics to scale or even unable to use cluster.
- Check networking on the node.
- Check firewall on the node.
- Investigate additional API logs.
- Investigate NetworkPolicies if kubeApi - additional API was not filtered out.
- Investigate NetworkPolicies if prometheus/additional api was not filtered out.