kubernetes statefulsetcontroller 源码
kubernetes statefulsetcontroller 代码
文件路径：/cmd/kube-controller-manager/app/options/statefulsetcontroller.go
/*
Copyright 2019 The Kubernetes Authors.
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 options
import (
"fmt"
"github.com/spf13/pflag"
statefulsetconfig "k8s.io/kubernetes/pkg/controller/statefulset/config"
)
// StatefulSetControllerOptions holds the StatefulSetController options.
type StatefulSetControllerOptions struct {
*statefulsetconfig.StatefulSetControllerConfiguration
}
// AddFlags adds flags related to StatefulSetController for controller manager to the specified FlagSet.
func (o *StatefulSetControllerOptions) AddFlags(fs *pflag.FlagSet) {
if o == nil {
return
}
fs.Int32Var(&o.ConcurrentStatefulSetSyncs, "concurrent-statefulset-syncs", o.ConcurrentStatefulSetSyncs, "The number of statefulset objects that are allowed to sync concurrently. Larger number = more responsive statefulsets, but more CPU (and network) load")
}
// ApplyTo fills up StatefulSetController config with options.
func (o *StatefulSetControllerOptions) ApplyTo(cfg *statefulsetconfig.StatefulSetControllerConfiguration) error {
if o == nil {
return nil
}
cfg.ConcurrentStatefulSetSyncs = o.ConcurrentStatefulSetSyncs
return nil
}
// Validate checks validation of StatefulSetControllerOptions.
func (o *StatefulSetControllerOptions) Validate() []error {
if o == nil {
return nil
}
errs := []error{}
if o.ConcurrentStatefulSetSyncs < 1 {
errs = append(errs, fmt.Errorf("concurrent-statefulset-syncs must be greater than 0, but got %d", o.ConcurrentStatefulSetSyncs))
}
return errs
}
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