x509

Kubernetes: fixing x509 certificate errors from metric-server on K3s cluster


Categories: Kubernetes

K3s is deployed by default with a metrics-server, but if you have a multi-node cluster it will fail unless you add the names of all the nodes to the kube-apiserver certificate.  Symptoms of this problem include: metrics-server deployment will throw x509 errors in its log Error when you try to run “kubectl top pods” No … Kubernetes: fixing x509 certificate errors from metric-server on K3s cluster

Kubernetes: ingress-nginx-controller-admission error, x509 certificate signed by unknown authority


Categories: Containers

If you delete the entire nginx namespace and reinstall again via helm chart, your nginx admission controller may throw a “x509 certificate signed by unknown authority” message when you attempt to create an nginx ingress. This will happen regardless if the ingress is using http only or secure https.  And also whether or not the … Kubernetes: ingress-nginx-controller-admission error, x509 certificate signed by unknown authority