restart registry

Change-Id: I3541b2465b481b10800add114677843080697e2f
diff --git a/roles/registry/templates/registry-compose.yml.j2 b/roles/registry/templates/registry-compose.yml.j2
index 61bccc4..90bacc9 100644
--- a/roles/registry/templates/registry-compose.yml.j2
+++ b/roles/registry/templates/registry-compose.yml.j2
@@ -6,6 +6,7 @@
    - /docker-registry/conf:/conf
   ports:
     - "5000:5000"
+  restart: unless-stopped
 
 registry-mirror:
   image: registry:2.4.0