Dump all pod YAML to file

Backup/inspect entire pod state in a namespace

kubectl get pods -n <ns> -o yaml > pods-dump.yaml
tool
kubectl73 commands
tags
debugpods

More kubectl commands

  • Jsonpath — all container images
    kubectl get pods -A -o jsonpath='{range .items[*]}{.metadata.namespace}{"\t"}{.metadata.name}{"\t"}{range .spec.containers[*]}{.image}{"\n"}{end}{end}'

    Enumerate every container image running in the cluster

  • Switch kubeconfig context
    kubectl config use-context <context>

    Switch the active cluster context

  • List kubeconfig contexts
    kubectl config get-contexts

    Show all contexts in current kubeconfig

  • Merge kubeconfigs
    KUBECONFIG=~/.kube/config:~/.kube/cluster2.yaml kubectl config view --flatten > ~/.kube/merged.yaml

    Combine multiple kubeconfig files into one

  • Set default namespace for context
    kubectl config set-context --current --namespace=<ns>

    Avoid typing -n on every command for this context

all 73 kubectl commands