README: mention purpose of k0
diff --git a/README b/README
index cc7a27a..a4110a9 100644
--- a/README
+++ b/README
@@ -16,3 +16,19 @@
echo "185.236.240.36 k0.hswaw.net" >> /etc/hosts # temporary hack until we get loadbalancers working
clustercfg admincreds $(whoami)-admin # get administrative creds (valid for 5 days)
kubectl version
+
+Clusters
+========
+
+The following kubernetes clusters are available:
+
+k0.hswaw.net
+------------
+
+3 nodes (bc01n{01,02,03}.hswaw.net), mixed worker/master.
+
+No persistent storage (yet).
+
+Temporary development cluster. Will become base production cluster once configuration is done, but will *likely be fully cleared*.
+
+Feel free to use for tests, but your pods might disappear at any time.