diff --git a/tests/integration/test_application_id_consistency.py b/tests/integration/test_application_id_consistency.py
new file mode 100644
index 00000000..21e2937d
--- /dev/null
+++ b/tests/integration/test_application_id_consistency.py
@@ -0,0 +1,39 @@
+import os
+import yaml
+import unittest
+from pathlib import Path
+
+ROLES_DIR = Path(__file__).resolve().parent.parent.parent / "roles"
+
+
+class TestApplicationIdConsistency(unittest.TestCase):
+    def test_application_id_matches_docker_prefix(self):
+        failed_roles = []
+
+        for role_path in ROLES_DIR.iterdir():
+            if role_path.is_dir() and role_path.name.startswith("docker-"):
+                expected_id = role_path.name.replace("docker-", "", 1)
+                vars_file = role_path / "vars" / "main.yml"
+
+                if not vars_file.exists():
+                    failed_roles.append((role_path.name, "vars/main.yml missing"))
+                    continue
+
+                with open(vars_file, "r") as f:
+                    try:
+                        vars_data = yaml.safe_load(f) or {}
+                    except yaml.YAMLError as e:
+                        failed_roles.append((role_path.name, f"YAML error: {e}"))
+                        continue
+
+                actual_id = vars_data.get("application_id")
+                if actual_id != expected_id:
+                    failed_roles.append((role_path.name, f"application_id is '{actual_id}', expected '{expected_id}'"))
+
+        if failed_roles:
+            msg = "\n".join([f"{role}: {reason}" for role, reason in failed_roles])
+            self.fail(f"The following roles have mismatching or missing application_id:\n{msg}")
+
+
+if __name__ == "__main__":
+    unittest.main()