NS=<namespace of the ceph cluster>
POOL=<pool name>
# Filter by date to exclude volumes in the process of creation and deletion.
RECENT_DATE=2023-11
WORK_FILE=/tmp/omapval
PVS_FILE=/tmp/pvs
OBJS_FILE=/tmp/objs
kubectl get pv -o json | jq -r ".items[] | select(.metadata.creationTimestamp | contains(\"${RECENT_DATE}\") | not) | select(.spec.storageClassName | contains(\"ceph\")) | .metadata.name" > ${PVS_FILE}
kubectl exec -n ${NS} deploy/rook-ceph-tools -- rados ls -p ${POOL} > ${OBJS_FILE}
KEYS=$(kubectl exec -n ${NS} deploy/rook-ceph-tools -- rados listomapkeys csi.volumes.default -p ${POOL})
for KEY in ${KEYS}; do
    kubectl exec -n ${NS} deploy/rook-ceph-tools -- rados getomapval csi.volumes.default -p ${POOL} ${KEY} ${WORK_FILE} > /dev/null 2>&1
    OBJ_SUB=$(kubectl exec -n ${NS} deploy/rook-ceph-tools -- cat ${WORK_FILE})
    kubectl exec -n ${NS} deploy/rook-ceph-tools -- rm ${WORK_FILE}

    # Filter by date.
    using="false"
    for OBJ in $(cat ${OBJS_FILE} | grep ${OBJ_SUB}); do
        kubectl exec -n ${NS} deploy/rook-ceph-tools -- rados stat -p ${POOL} ${OBJ} | grep ${RECENT_DATE} > /dev/null
        if [ $? -eq 0 ]; then
            using="true"
            break
        fi
    done
    if [ ${using} = "true" ]; then
        continue
    fi

    # Looking for PV
    PV_NAME=$(echo $KEY | cut -d'.' -f3)
    pv_exists=false
    cat ${PVS_FILE} | grep ${PV_NAME} > /dev/null
    if [ $? -eq 0 ]; then
        pv_exists=true
    fi

    echo "PV:${PV_NAME} OBJ_SUB:${OBJ_SUB} exists?:${pv_exists}"
done

rm ${PVS_FILE} ${OBJS_FILE}