diff --git a/.docker/caosdb_client.json b/.docker/caosdb_client.json
new file mode 100644
index 0000000000000000000000000000000000000000..a3312af836c78756a57b1964711eeeaa50da1a81
--- /dev/null
+++ b/.docker/caosdb_client.json
@@ -0,0 +1,28 @@
+{
+  "connections": {
+    "default": "julialib-unittest",
+    "julialib-unittest": {
+      "host": "caosdb-server",
+      "port": 8443,
+      "server_certificate_path": "/cert/caosdb.cert.pem",
+      "authentication": {
+        "type": "plain",
+        "username": "admin",
+        "password": "caosdb"
+      }
+    },
+    "local-caosdb": {
+      "host": "localhost",
+      "port": 8443,
+      "server_certificate_path": "some/path/cacert.pem",
+      "authentication": {
+        "type": "plain",
+        "username": "me",
+        "password": "secret!"
+      }
+    }
+  },
+  "extension": {
+    "this is my": "special option"
+  }
+}