79 lines
1.9 KiB
Go
79 lines
1.9 KiB
Go
// Copyright 2023 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package featurecontrol
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import (
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"fmt"
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"strings"
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"github.com/go-kit/log"
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"github.com/go-kit/log/level"
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)
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const (
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fcReceiverNameInMetrics = "receiver-name-in-metrics"
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)
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var AllowedFlags = []string{fcReceiverNameInMetrics}
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type Flagger interface {
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EnableReceiverNamesInMetrics() bool
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}
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type Flags struct {
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logger log.Logger
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enableReceiverNamesInMetrics bool
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}
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func (f *Flags) EnableReceiverNamesInMetrics() bool {
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return f.enableReceiverNamesInMetrics
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}
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type flagOption func(flags *Flags)
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func enableReceiverNameInMetrics() flagOption {
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return func(configs *Flags) {
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configs.enableReceiverNamesInMetrics = true
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}
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}
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func NewFlags(logger log.Logger, features string) (Flagger, error) {
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fc := &Flags{logger: logger}
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opts := []flagOption{}
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if len(features) == 0 {
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return NoopFlags{}, nil
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}
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for _, feature := range strings.Split(features, ",") {
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switch feature {
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case fcReceiverNameInMetrics:
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opts = append(opts, enableReceiverNameInMetrics())
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level.Warn(logger).Log("msg", "Experimental receiver name in metrics enabled")
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default:
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return nil, fmt.Errorf("Unknown option '%s' for --enable-feature", feature)
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}
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}
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for _, opt := range opts {
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opt(fc)
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}
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return fc, nil
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}
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type NoopFlags struct{}
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func (n NoopFlags) EnableReceiverNamesInMetrics() bool { return false }
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