/
utils.go
74 lines (67 loc) · 2.18 KB
/
utils.go
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/*
* Copyright (c) 2024 Yunshan Networks
*
* 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 election
import (
"errors"
"fmt"
"os"
"strings"
"github.com/deepflowio/deepflow/server/controller/common"
)
// 功能:判断当前控制器是否为masterController
func IsMasterController() (bool, error) {
// in standalone mode, the local machine is the master node because of all in one deployment
if common.IsStandaloneRunningMode() == true {
return true, nil
}
// get self host_ip
hostIP := os.Getenv(common.POD_IP_KEY)
if len(hostIP) == 0 {
log.Error("pod_ip is null")
return false, errors.New("pod_ip is null")
}
// get leader
leaderID := GetLeader()
// node_name/node_ip/pod_name/pod_ip
leaderInfo := strings.Split(leaderID, "/")
if len(leaderInfo) != ID_ITEM_NUM || leaderInfo[3] == "" {
return false, errors.New(fmt.Sprintf("id (%s) is not expected", leaderID))
}
return hostIP == leaderInfo[3], nil
}
func IsMasterControllerAndReturnIP() (bool, string, error) {
// in standalone mode, the local machine is the master node because of all in one deployment
if common.IsStandaloneRunningMode() == true {
return true, common.GetPodIP(), nil
}
// get self host_ip
hostIP := os.Getenv(common.POD_IP_KEY)
if len(hostIP) == 0 {
log.Error("pod_ip is null")
return false, "", errors.New("pod_ip is null")
}
// get leader
leaderID := GetLeader()
// node_name/node_ip/pod_name/pod_ip
leaderInfo := strings.Split(leaderID, "/")
if len(leaderInfo) != ID_ITEM_NUM || leaderInfo[3] == "" {
return false, "", errors.New(fmt.Sprintf("id (%s) is not expected", leaderID))
}
if hostIP != leaderInfo[3] {
return false, leaderInfo[3], nil
}
return true, hostIP, nil
}