refactor: restructure registry with auth and agent guidelines

- Add built-in authentication with Apache utils
- Add AGENTS.md for coding guidelines
- Enhance security with authentication enabled by default
- Remove unnecessary template files
- Simplify configuration and setup process

docker-compose.yml

@@ -2,13 +2,15 @@ version: '3.8'
 
 services:
   registry:
-    image: registry:2
+    build: .
     container_name: registry
     restart: unless-stopped
     expose:
       - "5000"
     volumes:
       - registry-data:/var/lib/registry
+      - registry-auth:/etc/docker/registry/auth
+      - ./config.yml:/etc/docker/registry/config.yml
     networks:
       - registry-network
 
@@ -28,7 +30,7 @@ services:
       - CATALOG_MIN_BRANCHES=${CATALOG_MIN_BRANCHES:-1}
       - CATALOG_MAX_BRANCHES=${CATALOG_MAX_BRANCHES:-1}
       - TAGLIST_PAGE_SIZE=${TAGLIST_PAGE_SIZE:-100}
-      - REGISTRY_SECURED=${REGISTRY_SECURED:-false}
+      - REGISTRY_SECURED=${REGISTRY_SECURED:-true}
       - CATALOG_ELEMENTS_LIMIT=${CATALOG_ELEMENTS_LIMIT:-1000}
     depends_on:
       - registry
@@ -41,4 +43,6 @@ networks:
 
 volumes:
   registry-data:
+    driver: local
+  registry-auth:
     driver: local