feat: add runtime policy and observability

docker/.env.production.example

@@ -7,7 +7,7 @@ DEBIAN_MIRROR=http://deb.debian.org/debian
 CARGO_REGISTRY_MIRROR=
 
 # Public listener and URL
-IMAGEFORGE_BIND_ADDRESS=0.0.0.0
+IMAGEFORGE_BIND_ADDRESS=127.0.0.1
 IMAGEFORGE_PORT=8080
 PUBLIC_BASE_URL=http://192.0.2.10:8080
 

docker/docker-compose.dev.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   postgres:
     image: postgres:16-alpine
@@ -8,14 +6,14 @@ services:
       POSTGRES_PASSWORD: devpassword
       POSTGRES_DB: imageforge
     ports:
-      - "5432:5432"
+      - "127.0.0.1:5432:5432"
     volumes:
       - postgres_data:/var/lib/postgresql/data
 
   redis:
     image: redis:7-alpine
     ports:
-      - "6379:6379"
+      - "127.0.0.1:6379:6379"
     volumes:
       - redis_data:/data
 

docker/docker-compose.prod.yml

@@ -83,7 +83,7 @@ services:
       MAIL_SMTP_PORT: "${MAIL_SMTP_PORT:-}"
       MAIL_SMTP_ENCRYPTION: "${MAIL_SMTP_ENCRYPTION:-}"
     ports:
-      - "${IMAGEFORGE_BIND_ADDRESS:-0.0.0.0}:${IMAGEFORGE_PORT:-8080}:8080"
+      - "${IMAGEFORGE_BIND_ADDRESS:-127.0.0.1}:${IMAGEFORGE_PORT:-8080}:8080"
     volumes:
       - uploads:/app/uploads
     tmpfs:

docker/nginx.conf

@@ -22,6 +22,12 @@ http {
     listen 80;
     server_name _;
 
+    add_header X-Content-Type-Options "nosniff" always;
+    add_header X-Frame-Options "SAMEORIGIN" always;
+    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+    add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
+    add_header Content-Security-Policy "default-src 'self'; base-uri 'self'; object-src 'none'; frame-ancestors 'self'; form-action 'self'; img-src 'self' data: blob: https:; font-src 'self' data:; style-src 'self' 'unsafe-inline'; script-src 'self'; connect-src 'self' https:" always;
+
     root /usr/share/nginx/html;
 
     location /api/ {
@@ -44,6 +50,11 @@ http {
       proxy_pass http://imageforge_api;
     }
 
+    # Prometheus should scrape the API container directly on the private network.
+    location = /metrics {
+      return 404;
+    }
+
     # SPA fallback
     location / {
       try_files $uri $uri/ /index.html;