chore(deploy): implements Health Checker

Author: renancvitor

.github/workflows/cd.yml

@@ -70,3 +70,12 @@ jobs:
           ssh -i ~/.ssh/ec2.pem \
           ${{ secrets.EC2_USER }}@${{ secrets.EC2_HOST }} \
           "sudo systemctl restart ${{ secrets.SERVICE_NAME }}"
+
+      # ============================
+      # HEALTH CHECK
+      # ============================
+      - name: Health check
+        run: |
+          echo "Waiting application startup..."
+          sleep 10
+          curl -f http://${{ secrets.EC2_HOST }}:8080/health

src/main/java/com/github/renancvitor/inventory/infra/observability/HealthController.java

@@ -0,0 +1,39 @@
+package com.github.renancvitor.inventory.infra.observability;
+
+import java.time.OffsetDateTime;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/health")
+public class HealthController {
+
+    @Value("${app.name}")
+    private String application;
+
+    @Value("${app.version}")
+    private String version;
+
+    @Value("${app.environment.default}")
+    private String environment;
+
+    @GetMapping
+    public ResponseEntity<Map<String, Object>> healthCheck() {
+        Map<String, Object> response = new HashMap<>();
+
+        response.put("status", "UP");
+        response.put("application", application);
+        response.put("version", version);
+        response.put("environment", environment);
+        response.put("timestamp", OffsetDateTime.now().toString());
+
+        return ResponseEntity.ok(response);
+    }
+
+}

src/main/resources/application-dev.yml

@@ -16,3 +16,6 @@ messaging:
 outbox:
   scheduler:
     enabled: true
+
+app:
+  environment: development

src/main/resources/application-prod.yml

@@ -26,3 +26,4 @@ app:
   mail:
     sender: ${APP_MAIL_SENDER}
     recipient: ${APP_MAIL_RECIPIENT}
+  environment: production

src/main/resources/application.yml

@@ -23,3 +23,7 @@ logging:
 security:
   token:
     secret: ${JWT_SECRET}
+
+app:
+  name: Inventory Notification System Backend
+  version: 1.0.0