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Diffstat (limited to 'src/zenutil/cloud/mockimds.cpp')
| -rw-r--r-- | src/zenutil/cloud/mockimds.cpp | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/src/zenutil/cloud/mockimds.cpp b/src/zenutil/cloud/mockimds.cpp new file mode 100644 index 000000000..6919fab4d --- /dev/null +++ b/src/zenutil/cloud/mockimds.cpp @@ -0,0 +1,237 @@ +// Copyright Epic Games, Inc. All Rights Reserved. + +#include <zenutil/cloud/mockimds.h> + +#include <zencore/fmtutils.h> + +#if ZEN_WITH_TESTS + +namespace zen::compute { + +const char* +MockImdsService::BaseUri() const +{ + return "/"; +} + +void +MockImdsService::HandleRequest(HttpServerRequest& Request) +{ + std::string_view Uri = Request.RelativeUri(); + + // AWS endpoints live under /latest/ + if (Uri.starts_with("latest/")) + { + if (ActiveProvider == CloudProvider::AWS) + { + HandleAwsRequest(Request); + return; + } + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + + // Azure endpoints live under /metadata/ + if (Uri.starts_with("metadata/")) + { + if (ActiveProvider == CloudProvider::Azure) + { + HandleAzureRequest(Request); + return; + } + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + + // GCP endpoints live under /computeMetadata/ + if (Uri.starts_with("computeMetadata/")) + { + if (ActiveProvider == CloudProvider::GCP) + { + HandleGcpRequest(Request); + return; + } + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + + Request.WriteResponse(HttpResponseCode::NotFound); +} + +// --------------------------------------------------------------------------- +// AWS +// --------------------------------------------------------------------------- + +void +MockImdsService::HandleAwsRequest(HttpServerRequest& Request) +{ + std::string_view Uri = Request.RelativeUri(); + + // IMDSv2 token acquisition (PUT only) + if (Uri == "latest/api/token" && Request.RequestVerb() == HttpVerb::kPut) + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.Token); + return; + } + + // Instance identity + if (Uri == "latest/meta-data/instance-id") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.InstanceId); + return; + } + + if (Uri == "latest/meta-data/placement/availability-zone") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.AvailabilityZone); + return; + } + + if (Uri == "latest/meta-data/instance-life-cycle") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.LifeCycle); + return; + } + + // Autoscaling lifecycle state — 404 when not in an ASG + if (Uri == "latest/meta-data/autoscaling/target-lifecycle-state") + { + if (Aws.AutoscalingState.empty()) + { + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.AutoscalingState); + return; + } + + // Spot interruption notice — 404 when no interruption pending + if (Uri == "latest/meta-data/spot/instance-action") + { + if (Aws.SpotAction.empty()) + { + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.SpotAction); + return; + } + + // IAM role discovery — returns the role name + if (Uri == "latest/meta-data/iam/security-credentials/") + { + if (Aws.IamRoleName.empty()) + { + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Aws.IamRoleName); + return; + } + + // IAM credentials for a specific role + constexpr std::string_view kIamCredPrefix = "latest/meta-data/iam/security-credentials/"; + if (Uri.starts_with(kIamCredPrefix) && Uri.size() > kIamCredPrefix.size()) + { + std::string_view RequestedRole = Uri.substr(kIamCredPrefix.size()); + if (RequestedRole == Aws.IamRoleName) + { + std::string Json = + fmt::format(R"({{"Code":"Success","AccessKeyId":"{}","SecretAccessKey":"{}","Token":"{}","Expiration":"{}"}})", + Aws.IamAccessKeyId, + Aws.IamSecretAccessKey, + Aws.IamSessionToken, + Aws.IamExpiration); + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Json); + return; + } + Request.WriteResponse(HttpResponseCode::NotFound); + return; + } + + Request.WriteResponse(HttpResponseCode::NotFound); +} + +// --------------------------------------------------------------------------- +// Azure +// --------------------------------------------------------------------------- + +void +MockImdsService::HandleAzureRequest(HttpServerRequest& Request) +{ + std::string_view Uri = Request.RelativeUri(); + + // Instance metadata (single JSON document) + if (Uri == "metadata/instance") + { + std::string Json = fmt::format(R"({{"compute":{{"vmId":"{}","location":"{}","priority":"{}","vmScaleSetName":"{}"}}}})", + Azure.VmId, + Azure.Location, + Azure.Priority, + Azure.VmScaleSetName); + + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Json); + return; + } + + // Scheduled events for termination monitoring + if (Uri == "metadata/scheduledevents") + { + std::string Json; + if (Azure.ScheduledEventType.empty()) + { + Json = R"({"Events":[]})"; + } + else + { + Json = fmt::format(R"({{"Events":[{{"EventType":"{}","EventStatus":"{}"}}]}})", + Azure.ScheduledEventType, + Azure.ScheduledEventStatus); + } + + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Json); + return; + } + + Request.WriteResponse(HttpResponseCode::NotFound); +} + +// --------------------------------------------------------------------------- +// GCP +// --------------------------------------------------------------------------- + +void +MockImdsService::HandleGcpRequest(HttpServerRequest& Request) +{ + std::string_view Uri = Request.RelativeUri(); + + if (Uri == "computeMetadata/v1/instance/id") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Gcp.InstanceId); + return; + } + + if (Uri == "computeMetadata/v1/instance/zone") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Gcp.Zone); + return; + } + + if (Uri == "computeMetadata/v1/instance/scheduling/preemptible") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Gcp.Preemptible); + return; + } + + if (Uri == "computeMetadata/v1/instance/maintenance-event") + { + Request.WriteResponse(HttpResponseCode::OK, HttpContentType::kText, Gcp.MaintenanceEvent); + return; + } + + Request.WriteResponse(HttpResponseCode::NotFound); +} + +} // namespace zen::compute + +#endif // ZEN_WITH_TESTS |