Mflavell: Created page with "'''Kubernetes Command-Line Cheat Sheet''' is a reference guide for standard operations using the `kubectl` command-line interface to manage Kubernetes clusters, workloads, and node infrastructure. == Cluster Context & Namespaces == {| class="wikitable" ! Command !! Description |- | `kubectl config get-contexts` || List all available cluster contexts. |- | `kubectl config use-context <context-name>` || Switch active cluster context...."

2026-09-10T00:14:12Z

Created page with "'''Kubernetes Command-Line Cheat Sheet''' is a reference guide for standard operations using the <code>kubectl</code> command-line interface to manage Kubernetes clusters, workloads, and node infrastructure. == Cluster Context & Namespaces == {| class="wikitable" ! Command !! Description |- | <code>kubectl config get-contexts</code> || List all available cluster contexts. |- | <code>kubectl config use-context <context-name></code> || Switch active cluster context...."

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'''Kubernetes Command-Line Cheat Sheet''' is a reference guide for standard operations using the <code>kubectl</code> command-line interface to manage Kubernetes clusters, workloads, and node infrastructure.

== Cluster Context & Namespaces ==
{| class="wikitable"
! Command !! Description
|-
| <code>kubectl config get-contexts</code> || List all available cluster contexts.
|-
| <code>kubectl config use-context <context-name></code> || Switch active cluster context.
|-
| <code>kubectl config set-context --current --namespace=<ns></code> || Set default namespace for current context.
|-
| <code>kubectl get ns</code> || List all namespaces in the cluster.
|}

== Viewing & Inspecting Resources ==
{| class="wikitable"
! Command !! Description
|-
| <code>kubectl get pods -A</code> || List all pods across all namespaces.
|-
| <code>kubectl get pods -o wide</code> || List pods with IP addresses and node assignments.
|-
| <code>kubectl get all -n <namespace></code> || Show all active resources in a specific namespace.
|-
| <code>kubectl describe <resource>/<name></code> || View detailed state, events, and configuration.
|-
| <code>kubectl get <resource> <name> -o yaml</code> || Export resource manifest to YAML format.
|}

== Deploying & Managing Workloads ==
{| class="wikitable"
! Command !! Description
|-
| <code>kubectl apply -f <file.yaml></code> || Create or update resources declaratively.
|-
| <code>kubectl delete -f <file.yaml></code> || Delete resources defined in a YAML manifest.
|-
| <code>kubectl scale deploy/<name> --replicas=<N></code> || Scale the replica count of a Deployment.
|-
| <code>kubectl rollout restart deploy/<name></code> || Perform a zero-downtime rolling restart.
|-
| <code>kubectl rollout undo deploy/<name></code> || Roll back to the previous deployment revision.
|}

== Debugging & Observability ==
{| class="wikitable"
! Command !! Description
|-
| <code>kubectl logs -f <pod-name></code> || Stream real-time logs from a pod container.
|-
| <code>kubectl logs -p <pod-name></code> || View logs from a previous crashed container instance.
|-
| <code>kubectl exec -it <pod-name> -- /bin/sh</code> || Open an interactive shell inside a running pod.
|-
| <code>kubectl port-forward svc/<name> 8080:80</code> || Forward local port 8080 to cluster service port 80.
|-
| <code>kubectl get events --sort-by='.metadata.creationTimestamp'</code> || List recent cluster events sorted by timestamp.
|-
| <code>kubectl top pods</code> / <code>kubectl top nodes</code> || Display live CPU and memory metrics.
|}

== Node Operations & Maintenance ==
{| class="wikitable"
! Command !! Description
|-
| <code>kubectl get nodes</code> || List all cluster nodes and their current status.
|-
| <code>kubectl cordon <node-name></code> || Mark a node as unschedulable.
|-
| <code>kubectl drain <node-name> --ignore-daemonsets</code> || Safely evict all pods before node maintenance.
|-
| <code>kubectl uncordon <node-name></code> || Mark a node as schedulable again.
|}

== Essential Productivity Shell Shortcuts ==
Add these shortcuts to your shell profile (<code>~/.bashrc</code> or <code>~/.zshrc</code>) to speed up workflow:

<syntaxhighlight lang="bash">
alias k='kubectl'
alias kgp='kubectl get pods'
alias kgs='kubectl get svc'
alias kgd='kubectl get deployments'
alias kdp='kubectl describe pod'
alias kl='kubectl logs -f'
</syntaxhighlight>

== See Also ==
* [[Kubernetes]]
* [[Secure Shell]]

[[Category:Kubernetes]]
[[Category:Cheat Sheets]]
[[Category:System Administration]]

Computer Notes/Kubernetes/Kubernetes Command-Line Cheat Sheet - Revision history