K8s debug script

k8s-debug

NAMESPACE=my-namespace
cat <<EOF | kubectl apply -n $NAMESPACE -f -
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: debug
spec:
  podSelector:
    matchLabels:
      app: debug
  policyTypes:
  - Egress
  egress:
  - {}
EOF
kubectl run -i --tty -n $NAMESPACE --rm debug -l app=debug --image=busybox --restart=Never -- sh
kubectl -n $NAMESPACE delete networkpolicy debug