Kubectl

kubectl delete pods --field-selector status.phase=Failed --all-namespaces

kubectl describe node foo

kubectl run my-testshell --rm -i --tty --image ubuntu -- bash

kubectl delete pods --field-selector status.phase=Failed --all-namespaces

https://gist.github.com/zparnold/0e72d7d3563da2704b900e3b953a8229

kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}" |\
tr -s '[[:space:]]' '\n' |\
sort |\
uniq -c

kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}"

On Microk8s Quick

mkdir $HOME/.kube
microk8s config > $HOME/.kube/config
snap install kubectl --classic
kubectl get nodes

or alias

alias kubectl='sudo microk8s.kubectl'
alias k='sudo microk8s.kubectl'

clean-up non-running/evicted/ContainerStatusUnknown pods in example namespace

for i in $(kubectl -n zabbix-prod get pods --no-headers | grep -v "Run" | awk '{print $1}'); do kubectl -n example delete pod $i; done

sudo zfs create zfspv-pool/bkp
sudo kubectl cp postgres0-0:/var/lib/postgresql/data /zfspv-pool/bkp/data -n postgres-dev

Delete all from namespace

kubectl delete all --all -n default

Delete all replicate sets

kubectl delete replicaset $(kubectl get replicaset -o jsonpath='{ .items[?(@.spec.replicas==0)].metadata.name }')