container: support hostprocess containers and expose kubernetes labels (#1911)

internal/headers/hcn/hcn.go

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: Apache-2.0
+//
+// Copyright The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build windows
+
+package hcn
+
+import (
+	"fmt"
+
+	"github.com/prometheus-community/windows_exporter/internal/headers/guid"
+	"github.com/prometheus-community/windows_exporter/internal/utils"
+	"golang.org/x/sys/windows"
+)
+
+//nolint:gochecknoglobals
+var (
+	defaultQuery = utils.Must(windows.UTF16PtrFromString(`{"SchemaVersion":{"Major": 2,"Minor": 0},"Flags":"None"}`))
+)
+
+func GetEndpointProperties(endpointID guid.GUID) (EndpointProperties, error) {
+	endpoint, err := OpenEndpoint(endpointID)
+	if err != nil {
+		return EndpointProperties{}, fmt.Errorf("failed to open endpoint: %w", err)
+	}
+
+	defer CloseEndpoint(endpoint)
+
+	result, err := QueryEndpointProperties(endpoint, defaultQuery)
+	if err != nil {
+		return EndpointProperties{}, fmt.Errorf("failed to query endpoint properties: %w", err)
+	}
+
+	return result, nil
+}