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debug.go
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debug.go
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/*
* Tencent is pleased to support the open source community by making TKEStack
* available.
*
* Copyright (C) 2012-2019 Tencent. All Rights Reserved.
*
* 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
*
* https://opensource.org/licenses/Apache-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 OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package options
import (
"github.com/spf13/pflag"
"github.com/spf13/viper"
componentconfig "k8s.io/component-base/config"
)
const (
flagDebugProfiling = "profiling"
flagDebugContentionProfiling = "contention-profiling"
)
const (
configDebugProfiling = "debug.profiling"
configDebugContentionProfiling = "debug.contention_profiling"
)
// DebugOptions holds the Debugging options.
type DebugOptions struct {
EnableProfiling bool
EnableContentionProfiling bool
}
// NewDebugOptions creates the default DebugOptions object.
func NewDebugOptions() *DebugOptions {
return &DebugOptions{}
}
// AddFlags adds flags related to debugging for controller manager to the specified FlagSet.
func (o *DebugOptions) AddFlags(fs *pflag.FlagSet) {
if o == nil {
return
}
fs.Bool(flagDebugProfiling, o.EnableProfiling,
"Enable profiling via web interface host:port/debug/pprof/")
_ = viper.BindPFlag(configDebugProfiling, fs.Lookup(flagDebugProfiling))
fs.Bool(flagDebugContentionProfiling, o.EnableContentionProfiling,
"Enable lock contention profiling, if profiling is enabled")
_ = viper.BindPFlag(configDebugContentionProfiling, fs.Lookup(flagDebugContentionProfiling))
}
// ApplyFlags parsing parameters from the command line or configuration file
// to the options instance.
func (o *DebugOptions) ApplyFlags() []error {
var errs []error
o.EnableProfiling = viper.GetBool(configDebugProfiling)
o.EnableContentionProfiling = viper.GetBool(configDebugContentionProfiling)
return errs
}
// ApplyTo fills up Debugging config with options.
func (o *DebugOptions) ApplyTo(cfg *componentconfig.DebuggingConfiguration) error {
if o == nil {
return nil
}
cfg.EnableProfiling = o.EnableProfiling
cfg.EnableContentionProfiling = o.EnableContentionProfiling
return nil
}