fix: proper YAML config with printf

- Use printf for proper YAML formatting
- Add explicit config path to command
- Add config directory creation step

Dockerfile

@@ -0,0 +1,10 @@
+FROM registry:2
+
+# Use Alpine's apk package manager to install apache2-utils
+RUN apk --no-cache add apache2-utils
+
+# Create config directory
+RUN mkdir -p /etc/docker/registry
+
+# Create config file with proper YAML formatting
+RUN printf "version: 0.1\nstorage:\n  filesystem:\n    rootdirectory: /var/lib/registry\nhttp:\n  addr: :5000\n" > /etc/docker/registry/config.yml

config.yml

@@ -0,0 +1,18 @@
+version: 0.1
+log:
+  fields:
+    service: registry
+storage:
+  cache:
+    blobdescriptor: inmemory
+  filesystem:
+    rootdirectory: /var/lib/registry
+http:
+  addr: :5000
+  headers:
+    X-Content-Type-Options: [nosniff]
+health:
+  storagedriver:
+    enabled: true
+    interval: 10s
+    threshold: 3

docker-compose.yml

@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   registry:
-    image: registry:2
+    build: .
     container_name: registry
     restart: unless-stopped
     expose:
@@ -11,6 +11,7 @@ services:
       - registry-data:/var/lib/registry
     networks:
       - registry-network
+    command: ["/etc/docker/registry/config.yml"]
 
 networks:
   registry-network: