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scheduler_restart.go
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scheduler_restart.go
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package k8s
import (
"github.com/cybozu-go/cke"
"github.com/cybozu-go/cke/op"
"github.com/cybozu-go/cke/op/common"
)
type schedulerRestartOp struct {
nodes []*cke.Node
cluster string
params cke.SchedulerParams
step int
files *common.FilesBuilder
}
// SchedulerRestartOp returns an Operator to restart kube-scheduler
func SchedulerRestartOp(nodes []*cke.Node, cluster string, params cke.SchedulerParams) cke.Operator {
return &schedulerRestartOp{
nodes: nodes,
cluster: cluster,
params: params,
files: common.NewFilesBuilder(nodes),
}
}
func (o *schedulerRestartOp) Name() string {
return "kube-scheduler-restart"
}
func (o *schedulerRestartOp) NextCommand() cke.Commander {
switch o.step {
case 0:
o.step++
return common.ImagePullCommand(o.nodes, cke.KubernetesImage)
case 1:
o.step++
return prepareSchedulerFilesCommand{o.cluster, o.files, o.params}
case 2:
o.step++
return o.files
case 3:
o.step++
return common.RunContainerCommand(o.nodes, op.KubeSchedulerContainerName, cke.KubernetesImage,
common.WithParams(SchedulerParams()),
common.WithExtra(o.params.ServiceParams),
common.WithRestart())
default:
return nil
}
}
func (o *schedulerRestartOp) Targets() []string {
ips := make([]string, len(o.nodes))
for i, n := range o.nodes {
ips[i] = n.Address
}
return ips
}