add healthcheck

docker-compose.yml

@@ -14,6 +14,14 @@ services:
       # - ./repositories:/app/repositories
     ports:
       - 5000:$PORT
+    healthcheck:
+      test:
+        - CMD
+        - node
+        - healthcheck.js
+      interval: 10s
+      timeout: 10s
+      retries: 5
     links:
       - mongodb
       - redis
@@ -45,7 +53,7 @@ services:
   mongodb-backup:
     image: tiredofit/db-backup
     links:
-     - mongodb
+      - mongodb
     volumes:
       - ./db_backups:/backup
     environment:

healthcheck.js

@@ -0,0 +1,23 @@
+const http = require("http");
+const config = require("./config");
+
+const options = {
+  host: "localhost",
+  port: config.PORT,
+  timeout: 2000,
+};
+
+const request = http.request(options, (res) => {
+  if (res.statusCode == 200) {
+    process.exit(0);
+  } else {
+    process.exit(1);
+  }
+});
+
+request.on("error", (err) => {
+  console.log("ERROR");
+  process.exit(1);
+});
+
+request.end();