Cassandra salt formula first version.
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
new file mode 100644
index 0000000..4d3c596
--- /dev/null
+++ b/metadata/service/server/single.yml
@@ -0,0 +1,18 @@
+applications:
+- cassandra
+classes:
+- service.cassandra.support
+parameters:
+  cassandra:
+    server:
+      enabled: true
+      version: 2
+      name: 'cassandra'
+      data_dirs:
+      - /var/lib/cassandra
+      bind:
+        address: ${_param:single_address}
+        rpc_port: 9160
+        port: 9042
+      members:
+      - host: ${_param:single_address}
\ No newline at end of file