mirror of
https://github.com/kubernetes/client-go.git
synced 2026-07-16 17:14:36 +00:00
775f4ddf38
* Added rest client metrics for client TTL and rot. * Fixed foo bar comment, added nil checks * Moved rotation observation inside of old cert nil check block * Fixed rotation age logic. * fixed BUILD for exec plugin package * fixed null pointer dereference in exec.go * Updated metric name, bucket, used oldest cert. Kubernetes-commit: 9dcb3bfcff2024e4690d70262cad14668b1f2507
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
/*
|
|
Copyright 2018 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 exec
|
|
|
|
import (
|
|
"sync"
|
|
"time"
|
|
|
|
"k8s.io/client-go/tools/metrics"
|
|
)
|
|
|
|
type certificateExpirationTracker struct {
|
|
mu sync.RWMutex
|
|
m map[*Authenticator]time.Time
|
|
earliest time.Time
|
|
}
|
|
|
|
var expirationMetrics = &certificateExpirationTracker{m: map[*Authenticator]time.Time{}}
|
|
|
|
// set stores the given expiration time and updates the updates earliest.
|
|
func (c *certificateExpirationTracker) set(a *Authenticator, t time.Time) {
|
|
c.mu.Lock()
|
|
defer c.mu.Unlock()
|
|
c.m[a] = t
|
|
|
|
// update earliest
|
|
earliest := time.Time{}
|
|
for _, t := range c.m {
|
|
if t.IsZero() {
|
|
continue
|
|
}
|
|
if earliest.IsZero() || earliest.After(t) {
|
|
earliest = t
|
|
}
|
|
}
|
|
c.earliest = earliest
|
|
}
|
|
|
|
// report reports the ttl to the earliest reported expiration time.
|
|
// If no Authenticators have reported a certificate expiration, this reports nil.
|
|
func (c *certificateExpirationTracker) report(now func() time.Time) {
|
|
c.mu.RLock()
|
|
defer c.mu.RUnlock()
|
|
if c.earliest.IsZero() {
|
|
metrics.ClientCertTTL.Set(nil)
|
|
} else {
|
|
ttl := c.earliest.Sub(now())
|
|
metrics.ClientCertTTL.Set(&ttl)
|
|
}
|
|
}
|