Initial commit: stateful OpenStack API laboratory simulator.

Ship Keystone auth, multi-service handlers (Yoga→Dalmatian), Compose/Helm packaging, API contract packs, and pytest/Pulumi coverage labs.
2026-07-18 04:26:48 +03:00
commit 6033967e6a
509 changed files with 464404 additions and 0 deletions
@@ -0,0 +1,52 @@
+"""OpenStack-style error responses."""
+
+from __future__ import annotations
+
+from fastapi import Request
+from fastapi.responses import JSONResponse
+
+
+class OpenStackError(Exception):
+    def __init__(
+        self,
+        code: str,
+        message: str,
+        *,
+        status_code: int = 400,
+        title: str | None = None,
+    ) -> None:
+        super().__init__(message)
+        self.code = code
+        self.message = message
+        self.status_code = status_code
+        self.title = title or code
+
+
+async def openstack_error_handler(_request: Request, exc: OpenStackError) -> JSONResponse:
+    # Neutron/Glance often use {"NeutronError": ...} etc.; use a common envelope
+    # that openstacksdk accepts for generic HTTP errors, plus itemized faults.
+    body: dict[str, object]
+    if exc.status_code in {401, 403}:
+        body = {
+            "error": {
+                "code": exc.status_code,
+                "title": exc.title,
+                "message": exc.message,
+            }
+        }
+    elif "Compute" in exc.code or exc.code.startswith("compute"):
+        body = {
+            "itemNotFound" if exc.status_code == 404 else "badRequest": {
+                "code": exc.status_code,
+                "message": exc.message,
+            }
+        }
+    else:
+        body = {
+            "error": {
+                "code": exc.status_code,
+                "title": exc.title,
+                "message": exc.message,
+            }
+        }
+    return JSONResponse(status_code=exc.status_code, content=body)