CPU hardware info (#8187)

pkg/madmin/hardware-commands.go

@@ -0,0 +1,78 @@
+/*
+ * MinIO Cloud Storage, (C) 2019 MinIO, Inc.
+ *
+ * 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.
+ *
+ */
+
+package madmin
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+
+	"github.com/shirou/gopsutil/cpu"
+)
+
+// HardwareType - type to hardware
+type HardwareType string
+
+const (
+	// HARDWARE represents hardware type
+	HARDWARE = "hwType"
+	// CPU represents hardware as cpu
+	CPU HardwareType = "cpu"
+)
+
+// ServerCPUHardwareInfo holds informantion about cpu hardware
+type ServerCPUHardwareInfo struct {
+	Addr    string         `json:"addr"`
+	Error   string         `json:"error,omitempty"`
+	CPUInfo []cpu.InfoStat `json:"cpu"`
+}
+
+// ServerCPUHardwareInfo - Returns cpu hardware information
+func (adm *AdminClient) ServerCPUHardwareInfo() ([]ServerCPUHardwareInfo, error) {
+	v := url.Values{}
+	v.Set(HARDWARE, string(CPU))
+	resp, err := adm.executeMethod("GET", requestData{
+		relPath:     "/v1/hardware",
+		queryValues: v,
+	})
+
+	defer closeResponse(resp)
+	if err != nil {
+		return nil, err
+	}
+
+	// Check response http status code
+	if resp.StatusCode != http.StatusOK {
+		return nil, httpRespToErrorResponse(resp)
+	}
+
+	// Unmarshal the server's json response
+	var cpuInfo []ServerCPUHardwareInfo
+
+	respBytes, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	err = json.Unmarshal(respBytes, &cpuInfo)
+	if err != nil {
+		return nil, err
+	}
+	return cpuInfo, nil
+}