bash
kubectl get pods -n payments -o jsonpath='{.items[*].metadata.name}'Notes
Print all pod names in a namespace.
Kubernetes JSONPath and Kustomize Cheat Sheet
JSONPath recipes, custom output patterns, jq/yq workflows, and Kustomize commands supported by kubectl.
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JSONPath Output Recipes
Common JSONPath patterns for kubectl output.
bash
kubectl get pods -n payments -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.containers[*].image}{"
"}{end}'Notes
Print pod names and container images.
bash
kubectl get nodes -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.status.addresses[?(@.type=="InternalIP")].address}{"
"}{end}'Notes
Print node names with internal IPs.
bash
kubectl get svc web -n payments -o jsonpath='{range .spec.ports[*]}{.name}{":"}{.port}{"->"}{.targetPort}{"
"}{end}'Notes
Print service port mappings.
bash
kubectl get secret app-secret -n payments -o jsonpath='{.data}'Notes
Print the secret data object keys and values.
bash
kubectl get pods -n payments -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.status.containerStatuses[*].restartCount}{"
"}{end}'Notes
Print pod restart counts.
bash
kubectl get ingress -n payments -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.rules[*].host}{"
"}{end}'Notes
Print ingress names and hosts.
bash
kubectl get pvc -n data -o jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.status.capacity.storage}{"
"}{end}'Notes
Print PVC names and bound storage sizes.
Go Templates, Custom Columns, and jq-Friendly Patterns
Alternative output strategies beyond JSONPath.
Node capacity custom columns
Show capacity data in a concise table.
bashANYoutputcustom-columnsnodes
bash
kubectl get nodes -o custom-columns=NAME:.metadata.name,CPU:.status.capacity.cpu,MEM:.status.capacity.memory,EPHEMERAL:.status.capacity.ephemeral-storageNotes
Show capacity data in a concise table.
bash
kubectl get pods -n payments -o go-template='{{range .items}}{{.metadata.name}}{{"\t"}}{{.status.phase}}{{"
"}}{{end}}'Notes
Render output using Go templates.
bash
kubectl get deployment web -n payments -o json | jqNotes
Pipe kubectl JSON into jq for flexible filtering.
bash
kubectl get deployment web -n payments -o yaml | yq '.spec.template.spec.containers[].image'Notes
Extract YAML fields with yq.
Kustomize with kubectl
Preview and apply overlays and generated resources.
bash
kubectl kustomize overlays/prodNotes
Build a kustomization without applying it.
bash
kubectl apply -k overlays/prodNotes
Apply resources from a kustomization directory.
bash
kubectl delete -k overlays/prodNotes
Delete resources generated by a kustomization.
bash
kubectl diff -k overlays/prodNotes
Preview the changes from a kustomization.
Apply and prune kustomization
Apply a kustomization and prune matching managed objects.
bashANYkustomizeprune
bash
kubectl apply -k overlays/prod --prune -l app.kubernetes.io/managed-by=kustomizeNotes
Apply a kustomization and prune matching managed objects.
Generate configmap YAML dry-run
Generate YAML that can be committed into Kustomize overlays.
bashANYkustomizedry-runyaml
bash
kubectl create configmap app-config --from-file=app.env -o yaml --dry-run=clientNotes
Generate YAML that can be committed into Kustomize overlays.
More in Kubernetes
kubeadm Cheat Sheet
Bootstrap, join, cert, kubeconfig, reset, phase, image, and upgrade commands for kubeadm-managed clusters.
Kubernetes Troubleshooting Cheat Sheet
Debugging, inspection, RBAC checks, rollout failures, node health, and maintenance-oriented kubectl workflows.
Kubernetes Networking, Storage, and Config Cheat Sheet
Services, ingress, EndpointSlices, network policies, PVCs, PVs, storage classes, ConfigMaps, Secrets, and nodes.
Kubernetes Workloads Cheat Sheet
Deployments, StatefulSets, DaemonSets, Jobs, CronJobs, autoscaling, rollouts, and workload maintenance.
Kubernetes & kubectl Cheat Sheet
Comprehensive kubectl commands for contexts, resources, apply flows, creation, deletion, logs, and cluster introspection.
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