Add healthcheck

README.md

@@ -39,6 +39,7 @@ curl -H "X-Cache: 1" http://localhost:3000/?url=https://api.example.com/data
 - Cache validity: 365 days for 200 responses
 - Cache key: Based on scheme, host, URI, and query parameters
 - Cache status header: `X-Cache-Status` shows cache hit/miss status
+- Health endpoint: `GET /health` returns "healthy" for container health checks
 
 ## In n8n
 

docker-compose.yml

@@ -6,9 +6,9 @@ services:
     expose:
       - 3000
     volumes:
-      - nginx_cache:/var/cache/nginx
+      - ./nginx_cache:/var/cache/nginx
     healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:3000/?url=http://httpbin.org/get"]
+      test: ["CMD-SHELL", "curl -f http://localhost:3000/health || exit 1"]
       interval: 30s
       timeout: 10s
       retries: 3

nginx.conf

@@ -2,6 +2,11 @@ http {
     proxy_cache_path /var/cache/nginx levels=1:2 keys_zone=api_cache:10m max_size=1g inactive=365d;
     server {
         listen 3000;
+        location /health {
+            return 200 "healthy\n";
+            add_header Content-Type text/plain;
+        }
+
         location / {
             proxy_cache api_cache;
             proxy_cache_valid 200 365d;