The default is Delete, which violates our no-surpises ambition

Author: solsson

README.md

@@ -52,6 +52,14 @@ For clients we tend to use [librdkafka](https://github.com/edenhill/librdkafka)-
 To use [Kafka Connect](http://kafka.apache.org/documentation/#connect) and [Kafka Streams](http://kafka.apache.org/documentation/streams/) you may want to take a look at our [sample](https://github.com/solsson/dockerfiles/tree/master/connect-files) [Dockerfile](https://github.com/solsson/dockerfiles/tree/master/streams-logfilter)s.
 Don't forget the [addon](https://github.com/Yolean/kubernetes-kafka/labels/addon)s.
 
+## Set "reclaim policy" for persistent volumes
+
+Caution: For each new kafka and pzoo pod you have to [manually set Reclaim Policy](https://kubernetes.io/docs/tasks/administer-cluster/change-pv-reclaim-policy/)
+to avoid losing your data if the [PVC](https://kubernetes.io/docs/concepts/storage/persistent-volumes/#persistentvolumeclaims)s or [PV](https://kubernetes.io/docs/concepts/storage/persistent-volumes/#persistent-volumes)s are deleted,
+including if the `kafka` namespace is deleted and recreated.
+
+See [feature#352](https://github.com/kubernetes/features/issues/352) [#38192](https://github.com/kubernetes/kubernetes/issues/38192) [#47987](https://github.com/kubernetes/kubernetes/pull/47987) for details on why this isn't supported (yet) in manifests.
+
 # Tests
 
 ```