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util.go
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util.go
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/*
* Copyright 2019 gosoon.
*
* 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 agent
import (
"sort"
ecsv1 "github.com/gosoon/kubernetes-operator/pkg/apis/ecs/v1"
)
type nodeList []ecsv1.Node
func (n nodeList) Less(i, j int) bool { return n[i].IP < n[j].IP }
func (n nodeList) Swap(i, j int) { n[i], n[j] = n[j], n[i] }
func (n nodeList) Len() int { return len(n) }
// injectClusterNodeRole is set role for cluster all nodes
// when installing a cluster, kubeadm first install a controlplane,then secondarycontrolplane should join controlplane,
// the workers node also join controlplane
// ps:
// this action is implementation in server at first,because proto3 not support type define alias,the NodeRole is a NodeRole type not string
// in order to reduce complexity so can do it in agent
func injectClusterNodeRole(cluster *ecsv1.KubernetesCluster) *ecsv1.KubernetesCluster {
// set master role
// grpc server select some node and set to ControlPlaneRole,SecondaryControlPlaneRole,WorkerRole
if len(cluster.Spec.Cluster.MasterList) > 0 {
masterList := cluster.Spec.Cluster.MasterList
sort.Sort(nodeList(masterList))
for idx, master := range cluster.Spec.Cluster.MasterList {
cluster.Spec.Cluster.MasterList[idx].Role = ecsv1.SecondaryControlPlaneRole
if master.IP == masterList[0].IP {
cluster.Spec.Cluster.MasterList[idx].Role = ecsv1.ControlPlaneRole
}
}
}
// set node role,default all node is worker
if len(cluster.Spec.Cluster.NodeList) > 0 {
for idx := range cluster.Spec.Cluster.NodeList {
cluster.Spec.Cluster.NodeList[idx].Role = ecsv1.WorkerRole
}
}
return cluster
}