mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 12:20:24 +00:00
98 lines
2.9 KiB
Go
98 lines
2.9 KiB
Go
/*
|
|
Copyright 2017 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 audit
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
auditinternal "k8s.io/apiserver/pkg/apis/audit"
|
|
"k8s.io/klog"
|
|
)
|
|
|
|
const (
|
|
subsystem = "apiserver_audit"
|
|
)
|
|
|
|
var (
|
|
eventCounter = prometheus.NewCounter(
|
|
prometheus.CounterOpts{
|
|
Subsystem: subsystem,
|
|
Name: "event_total",
|
|
Help: "Counter of audit events generated and sent to the audit backend.",
|
|
})
|
|
errorCounter = prometheus.NewCounterVec(
|
|
prometheus.CounterOpts{
|
|
Subsystem: subsystem,
|
|
Name: "error_total",
|
|
Help: "Counter of audit events that failed to be audited properly. " +
|
|
"Plugin identifies the plugin affected by the error.",
|
|
},
|
|
[]string{"plugin"},
|
|
)
|
|
levelCounter = prometheus.NewCounterVec(
|
|
prometheus.CounterOpts{
|
|
Subsystem: subsystem,
|
|
Name: "level_total",
|
|
Help: "Counter of policy levels for audit events (1 per request).",
|
|
},
|
|
[]string{"level"},
|
|
)
|
|
|
|
ApiserverAuditDroppedCounter = prometheus.NewCounter(
|
|
prometheus.CounterOpts{
|
|
Subsystem: subsystem,
|
|
Name: "requests_rejected_total",
|
|
Help: "Counter of apiserver requests rejected due to an error " +
|
|
"in audit logging backend.",
|
|
},
|
|
)
|
|
)
|
|
|
|
func init() {
|
|
prometheus.MustRegister(eventCounter)
|
|
prometheus.MustRegister(errorCounter)
|
|
prometheus.MustRegister(levelCounter)
|
|
prometheus.MustRegister(ApiserverAuditDroppedCounter)
|
|
}
|
|
|
|
// ObserveEvent updates the relevant prometheus metrics for the generated audit event.
|
|
func ObserveEvent() {
|
|
eventCounter.Inc()
|
|
}
|
|
|
|
// ObservePolicyLevel updates the relevant prometheus metrics with the audit level for a request.
|
|
func ObservePolicyLevel(level auditinternal.Level) {
|
|
levelCounter.WithLabelValues(string(level)).Inc()
|
|
}
|
|
|
|
// HandlePluginError handles an error that occurred in an audit plugin. This method should only be
|
|
// used if the error may have prevented the audit event from being properly recorded. The events are
|
|
// logged to the debug log.
|
|
func HandlePluginError(plugin string, err error, impacted ...*auditinternal.Event) {
|
|
// Count the error.
|
|
errorCounter.WithLabelValues(plugin).Add(float64(len(impacted)))
|
|
|
|
// Log the audit events to the debug log.
|
|
msg := fmt.Sprintf("Error in audit plugin '%s' affecting %d audit events: %v\nImpacted events:\n",
|
|
plugin, len(impacted), err)
|
|
for _, ev := range impacted {
|
|
msg = msg + EventString(ev) + "\n"
|
|
}
|
|
klog.Error(msg)
|
|
}
|