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mesos.go
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mesos.go
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/*
* Tencent is pleased to support the open source community by making Blueking Container Service available.
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* 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 app
import (
"fmt"
"os"
"reflect"
"time"
"github.com/Tencent/bk-bcs/bcs-common/common/blog"
"github.com/Tencent/bk-bcs/bcs-runtime/bcs-k8s/bcs-component/bcs-cc-agent/config"
)
var mesosCacheInfo *NodeInfo
func synchronizeMesosNodeInfo(config *config.BcsCcAgentConfig) error {
hostIp := os.Getenv("BCS_NODE_IP")
if hostIp == "" {
return fmt.Errorf("env [BCS_NODE_IP] is empty")
}
// init info cache
mesosCacheInfo = &NodeInfo{}
// sync info from bk-cmdb periodically
go func() {
ticker := time.NewTicker(time.Duration(1) * time.Minute)
defer ticker.Stop()
for {
blog.Info("starting to synchronize node info...")
nodeProperties, err := getInfoFromBkCmdb(config, hostIp)
if err != nil {
blog.Errorf("error synchronizing node info: %s", err.Error())
continue
}
// currentNodeInfo represents the current node info
currentNodeInfo := &NodeInfo{
Properties: nodeProperties,
}
// if nodeInfo updated, then update to file and node label
if !reflect.DeepEqual(*mesosCacheInfo, *currentNodeInfo) {
mesosCacheInfo = currentNodeInfo
err := updateMesosNodeInfo(k8sCacheInfo)
if err != nil {
blog.Errorf("error updating node info to file and node label: %s", err.Error())
continue
}
}
select {
case <-ticker.C:
}
}
}()
return nil
}