registry: Add redis as cache

services/registry/config/config.yml

@@ -1,21 +1,24 @@
 version: 0.1
+
 log:
+  level: debug
   fields:
     service: registry
+
 storage:
   cache:
-    blobdescriptor: inmemory
+    blobdescriptor: redis
   {{ registry_storage|to_nice_yaml(indent=2, width=140)|indent(2) }}
+
+redis:
+  addr: redis:6379
+
 http:
   addr: :5000
   headers:
     X-Content-Type-Options: [nosniff]
+
 auth:
   htpasswd:
-    realm: basic-realm
+    realm: Kadet's private registry
     path: /etc/docker/registry/htpasswd
-health:
-  storagedriver:
-    enabled: true
-    interval: 10s
-    threshold: 3

services/registry/stack.yml

@@ -1,6 +1,13 @@
 version: "{{ compose_version }}"
 
 services:
+  redis:
+    image: redis:latest
+    deploy:
+      resources:
+        limits:
+          memory: 256M
+
   registry:
     image: registry:2
     secrets: