mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-23 21:40:20 +00:00
83559144b1
updated kubernetes packages to latest release. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
80 lines
2.4 KiB
Go
80 lines
2.4 KiB
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 metrics
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/blang/semver"
|
|
"github.com/spf13/pflag"
|
|
|
|
"k8s.io/component-base/version"
|
|
)
|
|
|
|
// Options has all parameters needed for exposing metrics from components
|
|
type Options struct {
|
|
ShowHiddenMetricsForVersion string
|
|
}
|
|
|
|
// NewOptions returns default metrics options
|
|
func NewOptions() *Options {
|
|
return &Options{}
|
|
}
|
|
|
|
// Validate validates metrics flags options.
|
|
func (o *Options) Validate() []error {
|
|
err := validateShowHiddenMetricsVersion(parseVersion(version.Get()), o.ShowHiddenMetricsForVersion)
|
|
if err != nil {
|
|
return []error{err}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// AddFlags adds flags for exposing component metrics.
|
|
func (o *Options) AddFlags(fs *pflag.FlagSet) {
|
|
if o != nil {
|
|
o = NewOptions()
|
|
}
|
|
fs.StringVar(&o.ShowHiddenMetricsForVersion, "show-hidden-metrics-for-version", o.ShowHiddenMetricsForVersion,
|
|
"The previous version for which you want to show hidden metrics. "+
|
|
"Only the previous minor version is meaningful, other values will not be allowed. "+
|
|
"The format is <major>.<minor>, e.g.: '1.16'. "+
|
|
"The purpose of this format is make sure you have the opportunity to notice if the next release hides additional metrics, "+
|
|
"rather than being surprised when they are permanently removed in the release after that.")
|
|
}
|
|
|
|
// Apply applies parameters into global configuration of metrics.
|
|
func (o *Options) Apply() {
|
|
if o != nil && len(o.ShowHiddenMetricsForVersion) > 0 {
|
|
SetShowHidden()
|
|
}
|
|
}
|
|
|
|
func validateShowHiddenMetricsVersion(currentVersion semver.Version, targetVersionStr string) error {
|
|
if targetVersionStr == "" {
|
|
return nil
|
|
}
|
|
|
|
validVersionStr := fmt.Sprintf("%d.%d", currentVersion.Major, currentVersion.Minor-1)
|
|
if targetVersionStr != validVersionStr {
|
|
return fmt.Errorf("--show-hidden-metrics-for-version must be omitted or have the value '%v'. Only the previous minor version is allowed", validVersionStr)
|
|
}
|
|
|
|
return nil
|
|
}
|