Check etcd health via apiserver kubectl
Verify etcd connectivity through the apiserver health endpoint
kubectl get --raw '/healthz/etcd?verbose'
more kubectl
all 73 commands →
Node metrics from metrics.k8s.io API
kubectl get --raw '/apis/metrics.k8s.io/v1beta1/nodes' | jq '.items[] | {name:.metadata.name, cpu:.usage.cpu, mem:.usage.memory}'
Ephemeral debug copy with shared PIDs
kubectl debug <pod> -n <ns> --copy-to=<pod>-dbg --share-processes --image=nicolaka/netshoot -- sleep infinity
Explain deployment spec recursively
kubectl explain deploy.spec --recursive | less
Pause and resume a rollout
kubectl rollout pause deploy/<name> -n <ns>; kubectl rollout resume deploy/<name> -n <ns>
View last applied configuration
kubectl apply view-last-applied deploy/<name> -n <ns> -o yaml