fix: verify full prebuilt images before offline production deployment

tests/test_server_release.py

@@ -92,3 +92,53 @@ def test_release_rejects_wrong_storage_uuid(release_tool, monkeypatch):
     monkeypatch.setattr(release_tool, "run", lambda *args: "different-storage-uuid")
     with pytest.raises(AssertionError):
         release_tool.main()
+
+
+@pytest.mark.parametrize("invalid", [None, "id", "commit", "version", "content"])
+def test_prebuilt_image_is_bound_to_source_before_deployment(
+    release_tool, monkeypatch, invalid
+):
+    import json
+    import subprocess
+
+    digest = "sha256:" + "a" * 64
+    monkeypatch.setenv("FRAME_FLOW_PREBUILT_IMAGE_ID", digest)
+    metadata = {
+        "Id": digest,
+        "Config": {
+            "Labels": {
+                "org.opencontainers.image.revision": "fixture-commit",
+                "org.opencontainers.image.version": "0.1.22",
+            }
+        },
+    }
+    if invalid == "id":
+        metadata["Id"] = "sha256:" + "b" * 64
+    if invalid == "commit":
+        metadata["Config"]["Labels"]["org.opencontainers.image.revision"] = "wrong"
+    if invalid == "version":
+        metadata["Config"]["Labels"]["org.opencontainers.image.version"] = "wrong"
+    monkeypatch.setattr(release_tool, "run", lambda *args: json.dumps([metadata]))
+    calls = []
+
+    def isolated(command, **kwargs):
+        calls.append(command)
+        assert "--network=none" in command and "--read-only" in command
+        assert "--cap-drop=ALL" in command and "--user=10333:10333" in command
+        assert "-v" not in command and "--mount" not in command
+        assert json.loads(kwargs["input"]) == {"LICENSE": "fixture-hash"}
+        if invalid == "content":
+            raise subprocess.CalledProcessError(1, command)
+
+    monkeypatch.setattr(release_tool.subprocess, "run", isolated)
+    if invalid:
+        with pytest.raises((AssertionError, subprocess.CalledProcessError)):
+            release_tool.verify_prebuilt_image(
+                "fixture-image", "fixture-commit", "0.1.22", {"LICENSE": "fixture-hash"}
+            )
+    else:
+        assert release_tool.verify_prebuilt_image(
+            "fixture-image", "fixture-commit", "0.1.22", {"LICENSE": "fixture-hash"}
+        )
+    if invalid in ("id", "commit", "version"):
+        assert not calls