Modify healthcheck to get port from config.json instead of hard-coding to 5150

Dockerfile

@@ -47,7 +47,8 @@ USER node
 EXPOSE 5150 5151
 
 # Healthcheck: perform lightweight HTTP request to ensure app responding
+COPY docker/healthcheck.js /usr/local/bin/healthcheck.js
 HEALTHCHECK --interval=30s --timeout=5s --start-period=45s --retries=5 \
-    CMD curl -fsS http://127.0.0.1:5150/config/appVersion?health || exit 1
+    CMD node /usr/local/bin/healthcheck.js
 
 ENTRYPOINT ["node", "dist/app.js"]

docker-compose.yml

@@ -28,7 +28,7 @@ services:
       - njspc-dash-logs:/app/logs
       - njspc-dash-uploads:/app/uploads
     healthcheck:
-      test: [ "CMD", "node", "-e", "require('net').createConnection({host:'127.0.0.1',port:5150},c=>{c.end();process.exit(0)}).on('error',()=>process.exit(1))" ]
+      test: ["CMD", "node", "/usr/local/bin/healthcheck.js"]
       interval: 60s
       timeout: 5s
       start_period: 30s

docker/healthcheck.js

@@ -0,0 +1,43 @@
+const fs = require("fs");
+const http = require("http");
+
+const CONFIG_FILE = "/app/config.json";
+const DEFAULT_PORT = 5150;
+const HEALTH_PATH = "/config/appVersion?health";
+
+let port = DEFAULT_PORT;
+
+try {
+    const config = JSON.parse(fs.readFileSync(CONFIG_FILE, "utf8"));
+
+    port = config.web?.servers?.http?.port ?? DEFAULT_PORT;
+} catch {
+    // Use the default port if the config is unavailable or invalid.
+}
+
+const request = http.get(
+    {
+        host: "127.0.0.1",
+        port,
+        path: HEALTH_PATH,
+        timeout: 5000,
+    },
+    (response) => {
+        response.resume();
+
+        if (response.statusCode >= 200 && response.statusCode < 300) {
+            process.exit(0);
+        }
+
+        process.exit(1);
+    }
+);
+
+request.on("error", () => {
+    process.exit(1);
+});
+
+request.on("timeout", () => {
+    request.destroy();
+    process.exit(1);
+});