khenaidoo | 2672188 | 2021-08-11 17:42:52 -0400 | [diff] [blame] | 1 | // Copyright 2015 The etcd Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package auth |
| 16 | |
| 17 | import ( |
| 18 | "github.com/prometheus/client_golang/prometheus" |
| 19 | "sync" |
| 20 | ) |
| 21 | |
| 22 | var ( |
| 23 | currentAuthRevision = prometheus.NewGaugeFunc(prometheus.GaugeOpts{ |
| 24 | Namespace: "etcd_debugging", |
| 25 | Subsystem: "auth", |
| 26 | Name: "revision", |
| 27 | Help: "The current revision of auth store.", |
| 28 | }, |
| 29 | func() float64 { |
| 30 | reportCurrentAuthRevMu.RLock() |
| 31 | defer reportCurrentAuthRevMu.RUnlock() |
| 32 | return reportCurrentAuthRev() |
| 33 | }, |
| 34 | ) |
| 35 | // overridden by auth store initialization |
| 36 | reportCurrentAuthRevMu sync.RWMutex |
| 37 | reportCurrentAuthRev = func() float64 { return 0 } |
| 38 | ) |
| 39 | |
| 40 | func init() { |
| 41 | prometheus.MustRegister(currentAuthRevision) |
| 42 | } |