Fixed the bug

Signed-off-by: Martin Weise martin.weise@tuwien.ac.at

Closes #532

dbrepo-dashboard-service/tests/grafana/__init__.py

+import requests
+from testcontainers.core.container import DockerContainer
+from testcontainers.core.waiting_utils import wait_for_logs, wait_container_is_ready
+
+
+class GrafanaContainer(DockerContainer):
+    MGMT_PORT = 3000
+
+    def __init__(self, image: str = "bitnami/grafana:11", **kwargs) -> None:
+        super().__init__(image=image, **kwargs)
+        self.with_exposed_ports(self.MGMT_PORT)
+
+    def get_url(self) -> str:
+        return f"http://{self.get_container_host_ip()}:{self.get_exposed_port(self.MGMT_PORT)}"
+
+    @wait_container_is_ready(requests.exceptions.ConnectionError, requests.exceptions.ReadTimeout)
+    def _readiness_probe(self) -> None:
+        try:
+            response = requests.get(f"{self.get_url()}/api/health", timeout=1)
+        except requests.exceptions.ConnectionError:
+            response = requests.get(f"{self.get_url()}/healthz", timeout=1)
+        response.raise_for_status()
+        wait_for_logs(self, "HTTP Server Listen")
+
+    def start(self) -> "GrafanaContainer":
+        super().start()
+        self._readiness_probe()
+        return self