chore: relax uv, fix unleash e2e test stability

Signed-off-by: Todd Baert <todd.baert@dynatrace.com>

Author: toddbaert

providers/openfeature-provider-unleash/tests/test_integration.py

@@ -299,15 +299,76 @@ def wait_for_flags_visible(timeout=30, interval=2):
 def postgres_container():
     """Create and start PostgreSQL container."""
     with PostgresContainer("postgres:15", driver=None) as postgres:
-        postgres.start()
         postgres_url = postgres.get_connection_url()
         logger.info(f"PostgreSQL started at: {postgres_url}")
 
         yield postgres
 
 
+def _wait_for_healthy(container, max_wait_time=120):
+    """Poll the Unleash container until its /health endpoint returns 200.
+
+    Returns the base URL on success, raises on timeout or container death.
+    """
+    start_time = time.time()
+
+    while time.time() - start_time < max_wait_time:
+        try:
+            try:
+                exposed_port = container.get_exposed_port(4242)
+                unleash_url = f"http://localhost:{exposed_port}"
+                logger.info(f"Trying health check at: {unleash_url}")
+            except Exception as port_error:
+                # if the container exited, fail fast with its logs
+                docker_container = container.get_wrapped_container()
+                if docker_container:
+                    docker_container.reload()
+                    if docker_container.status in ("exited", "dead"):
+                        logs = docker_container.logs().decode(errors="replace")
+                        raise RuntimeError(
+                            f"Unleash container died ({docker_container.status}).\n"
+                            f"Logs:\n{logs}"
+                        ) from port_error
+                logger.error(f"Port not ready yet: {port_error}")
+                time.sleep(2)
+                continue
+
+            response = requests.get(f"{unleash_url}/health", timeout=5)
+            if response.status_code == 200:
+                logger.info("Unleash container is healthy!")
+                return unleash_url
+
+            logger.error(f"Health check failed, status: {response.status_code}")
+            time.sleep(2)
+
+        except RuntimeError:
+            raise
+        except Exception as e:
+            logger.error(f"Health check error: {e}")
+            time.sleep(2)
+
+    # timeout; dump container logs for debugging
+    try:
+        docker_container = container.get_wrapped_container()
+        if docker_container:
+            docker_container.reload()
+            logs = docker_container.logs().decode(errors="replace")
+            logger.error(
+                f"Unleash container status: {docker_container.status}\nLogs:\n{logs}"
+            )
+    except Exception:
+        logger.exception("Failed to retrieve container logs")
+    raise RuntimeError("Unleash container did not become healthy within timeout")
+
+
+# Unleash's migration runner can hit a pg_class_relname_nsp_index race
+# condition that kills the process on first start.  Retrying is safe because
+# the partially-created objects already exist on the second attempt.
+MAX_UNLEASH_ATTEMPTS = 3
+
+
 @pytest.fixture(scope="session")
-def unleash_container(postgres_container):  # noqa: PLR0915
+def unleash_container(postgres_container):
     """Create and start Unleash container with PostgreSQL dependency."""
     global UNLEASH_URL
 
@@ -322,75 +383,40 @@ def unleash_container(postgres_container):  # noqa: PLR0915
         f":{exposed_port}", ":5432"
     )
 
-    unleash = UnleashContainer(internal_url)
+    last_error = None
 
-    with unleash as container:
-        logger.info("Starting Unleash container...")
-        container.start()
-        logger.info("Unleash container started")
+    for attempt in range(1, MAX_UNLEASH_ATTEMPTS + 1):
+        unleash = UnleashContainer(internal_url)
 
-        # Wait for health check to pass
-        logger.info("Waiting for Unleash container to be healthy...")
-        max_wait_time = 120  # 2 minutes; Unleash DB migrations can be slow in CI
-        start_time = time.time()
+        with unleash as container:
+            logger.info(f"Starting Unleash container (attempt {attempt})...")
+            container.start()
+            logger.info("Unleash container started")
 
-        while time.time() - start_time < max_wait_time:
             try:
-                try:
-                    exposed_port = container.get_exposed_port(4242)
-                    unleash_url = f"http://localhost:{exposed_port}"
-                    logger.info(f"Trying health check at: {unleash_url}")
-                except Exception as port_error:
-                    # if the container exited, fail fast with its logs
-                    docker_container = container.get_wrapped_container()
-                    if docker_container:
-                        docker_container.reload()
-                        if docker_container.status in ("exited", "dead"):
-                            logs = docker_container.logs().decode(errors="replace")
-                            raise RuntimeError(
-                                f"Unleash container died ({docker_container.status}).\n"
-                                f"Logs:\n{logs}"
-                            ) from port_error
-                    logger.error(f"Port not ready yet: {port_error}")
-                    time.sleep(2)
+                unleash_url = _wait_for_healthy(container)
+            except RuntimeError as exc:
+                last_error = exc
+                if "pg_class_relname_nsp_index" in str(exc) or "died" in str(exc):
+                    logger.warning(
+                        f"Unleash failed on attempt {attempt} "
+                        f"(likely migration race); retrying..."
+                    )
                     continue
-
-                response = requests.get(f"{unleash_url}/health", timeout=5)
-                if response.status_code == 200:
-                    logger.info("Unleash container is healthy!")
-                    break
-
-                logger.error(f"Health check failed, status: {response.status_code}")
-                time.sleep(2)
-
-            except RuntimeError:
                 raise
-            except Exception as e:
-                logger.error(f"Health check error: {e}")
-                time.sleep(2)
-        else:
-            # timeout; dump container logs for debugging
-            try:
-                docker_container = container.get_wrapped_container()
-                if docker_container:
-                    docker_container.reload()
-                    logs = docker_container.logs().decode(errors="replace")
-                    logger.error(
-                        f"Unleash container status: {docker_container.status}\n"
-                        f"Logs:\n{logs}"
-                    )
-            except Exception:
-                logger.exception("Failed to retrieve container logs")
-            raise Exception("Unleash container did not become healthy within timeout")
 
-        # Get the exposed port and set global URL
-        UNLEASH_URL = f"http://localhost:{container.get_exposed_port(4242)}"
-        logger.info(f"Unleash started at: {unleash_url}")
+            UNLEASH_URL = unleash_url
+            logger.info(f"Unleash started at: {unleash_url}")
+
+            insert_admin_token(postgres_container)
+            logger.info("Admin token inserted into database")
 
-        insert_admin_token(postgres_container)
-        logger.info("Admin token inserted into database")
+            yield container, unleash_url
+            return
 
-        yield container, unleash_url
+    raise RuntimeError(
+        f"Unleash failed to start after {MAX_UNLEASH_ATTEMPTS} attempts"
+    ) from last_error
 
 
 @pytest.fixture(scope="session", autouse=True)

pyproject.toml

@@ -22,7 +22,7 @@ dev = [
 ]
 
 [tool.uv]
-required-version = "~=0.10.0"
+required-version = ">=0.10.0"
 package = false
 
 [tool.uv.sources]