k8s: PersistentVolumeClaim satisfier

#!/bin/sh -e

PVROOTDIR=/srv/tmp-volumes

# Volumes will be places under $PVROOTDIR/$NAMESPACE/$PVC-NAME

makevol() {

cat <<EOF
apiVersion: v1
kind: PersistentVolume
metadata:
  name: $2
  namespace: $1
spec:
  accessModes:
  - ReadWriteOnce
  capacity:
    storage: $3
  # volumeMode: Filesystem
  hostPath:
    path: $PVROOTDIR/$1/$2
EOF

}

kubectl get pvc --all-namespaces | grep Pending | while read pvc; do
  namespace=$(echo $pvc | awk '{ print $1 }')
  name=$(echo $pvc | awk '{ print $2 }')
  size=$(kubectl get pvc/$name -n $namespace -o=yaml | grep -A1 "requests" | grep "storage:" | awk '{ print $2}')
  echo "PVC: $name@$namespace"
  makevol $namespace $name $size | kubectl apply -f -
done