k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/cmd/kube-controller-manager/app/options/replicationcontroller.go (about)

     1  /*
     2  Copyright 2018 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package options
    18  
    19  import (
    20  	"github.com/spf13/pflag"
    21  
    22  	replicationconfig "k8s.io/kubernetes/pkg/controller/replication/config"
    23  )
    24  
    25  // ReplicationControllerOptions holds the ReplicationController options.
    26  type ReplicationControllerOptions struct {
    27  	*replicationconfig.ReplicationControllerConfiguration
    28  }
    29  
    30  // AddFlags adds flags related to ReplicationController for controller manager to the specified FlagSet.
    31  func (o *ReplicationControllerOptions) AddFlags(fs *pflag.FlagSet) {
    32  	if o == nil {
    33  		return
    34  	}
    35  
    36  	fs.Int32Var(&o.ConcurrentRCSyncs, "concurrent_rc_syncs", o.ConcurrentRCSyncs, "The number of replication controllers that are allowed to sync concurrently. Larger number = more responsive replica management, but more CPU (and network) load")
    37  }
    38  
    39  // ApplyTo fills up ReplicationController config with options.
    40  func (o *ReplicationControllerOptions) ApplyTo(cfg *replicationconfig.ReplicationControllerConfiguration) error {
    41  	if o == nil {
    42  		return nil
    43  	}
    44  
    45  	cfg.ConcurrentRCSyncs = o.ConcurrentRCSyncs
    46  
    47  	return nil
    48  }
    49  
    50  // Validate checks validation of ReplicationControllerOptions.
    51  func (o *ReplicationControllerOptions) Validate() []error {
    52  	if o == nil {
    53  		return nil
    54  	}
    55  
    56  	errs := []error{}
    57  	return errs
    58  }