Add 2i2c S3 storage to GESIS

as recommended by @yuvipanda

Author: rgaiacs

config/hetzner-gesis.yaml

@@ -1,8 +1,21 @@
 projectName: hetzner-gesis
 
-# We share the registry with 2i2c
 registry:
-  enabled: false
+  enabled: true
+  replicas: 1
+  config:
+    storage:
+      # We share the same S3 storage with 2i2c
+      s3:
+        regionendpoint: https://nbg1.your-objectstorage.com
+        bucket: mybinder-2i2c-registry
+        region: does-not-matter
+  storage:
+    filesystem:
+      storageClassName: "local-path"
+  ingress:
+    hosts:
+      - registry.gesis.mybinder.org
 
 cryptnono:
   detectors: