Kubernetes tricks

Kubernetes tricks

Get container last termination message:
kubectl get pod gotest-app-morty-5d6f6667c4-8bffb -o go-template="{{range .status.containerStatuses}}{{.lastState.terminated.message}}{{end}}"

Get events sorted by date:
kubectl get event --sort-by .lastTimestamp

Get events sorted, filtered by deployment name:
kubectl get event --sort-by .lastTimestamp --field-selector involvedObject.name=go-static-files-rick

Get logs filtered by label (suitable for deployments):
kubectl logs -l app=elasticsearch
kubectl logs deployment/gotest-app-morty --since=10m

Create opaque secret:
kubectl create secret generic backend-user --from-literal=backend-username='backend-admin'