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minio/pkg/madmin/hardware-commands.go

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/*
* 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"
"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"
// NETWORK hardware Info
NETWORK HardwareType = "network"
)
// 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: adminAPIPrefix + "/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
}
// ServerNetworkHardwareInfo holds informantion about cpu hardware
type ServerNetworkHardwareInfo struct {
Addr string `json:"addr"`
Error string `json:"error,omitempty"`
NetworkInfo []net.Interface `json:"network"`
}
// ServerNetworkHardwareInfo - Returns network hardware information
func (adm *AdminClient) ServerNetworkHardwareInfo() ([]ServerNetworkHardwareInfo, error) {
v := url.Values{}
v.Set(HARDWARE, string(NETWORK))
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 networkInfo []ServerNetworkHardwareInfo
respBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
err = json.Unmarshal(respBytes, &networkInfo)
if err != nil {
return nil, err
}
return networkInfo, nil
}