Kubernetes Shortcuts
Common kubectl alias
alias k=kubectl
alias kns="kubectl config set-context --current --namespace"
alias kdr="kubectl --dry-run=client -o yaml"
Tools for Multiple Kubernetes clusters management
k9s
- A terminal-based UI to interact with your Kubernetes clusters.
- Installation
brew install derailed/k9s/k9s
kubecm
- Faster kubeconfig context and namespace switching.
- Enable merging of multiple kubeconfig files.
- Installation.
brew install kubecm
Useful k8s commands
Get all deployment image version
❯ kubectl get deployments -o=jsonpath='{range .items[*]}{.metadata.namespace}{"\t"}{.metadata.name}{"\t"}{range .spec.template.spec.containers[*]}{.image}{"\n"}{end}{end}'
monitoring kube-prom-stack-grafana quay.io/kiwigrid/k8s-sidecar:1.30.0 quay.io/kiwigrid/k8s-sidecar:1.30.0 docker.io/grafana/grafana:11.6.0
monitoring kube-prom-stack-grafana-image-renderer docker.io/grafana/grafana-image-renderer:v4.0.11
monitoring kube-prom-stack-kube-prome-operator quay.io/prometheus-operator/prometheus-operator:v0.81.0
monitoring kube-prom-stack-kube-state-metrics registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.15.0
monitoring loki-gateway docker.io/nginxinc/nginx-unprivileged:1.27-alpine
Network Debugging pod
Creating a temporary netshoot pod for network troubleshooting
kubectl run netshoot --rm -i --tty --image nicolaka/netshoot
Get decode secret
Get and decode kubernetes secret values
❯ kubectl get secret secret -o json | jq -r '.data | map_values(@base64d)'
{
"PAPERLESS_CSRF_TRUSTED_ORIGINS": "********",
"PAPERLESS_DBENGINE": "********",
"PAPERLESS_DBHOST": "********",
"PAPERLESS_DBNAME": "********",
"PAPERLESS_DBPASS": "********",
}
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