kubernetes command line incantations

kubectl-riffs.cheat

% kubectl

# get all pods in cluster and show what node they are deployed on
kubectl get pods -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.spec.nodeName}{"\n"}' --all-namespaces

# get all pods on a node and show what namespace they are in
kubectl get pods -o=jsonpath='{range .items[?(@.spec.nodeName=="<Node ID>")]}{.metadata.name}{"\t"}{.metadata.namespace}{"\n"}' --all-namespaces

# get all machines and show their associated node
kubectl get machines -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.status.nodeRef.name}{"\n"}'

# get all machines and show their annotations
kubectl get machines -o=jsonpath='{range .items[*]}{.metadata.name}{"\t"}{.metadata.annotations}{"\n"}'

# show taints on all nodes
kubectl get nodes -o=jsonpath='{range .items[*]}{.metadata.name}{"\n"}{range .spec.taints[*]}  [{.effect}, {.key}]{"\n"}{end}{end}'