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metrics.go
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metrics.go
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// Copyright 2019 ETH Zurich
//
// 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 (
"github.com/prometheus/client_golang/prometheus"
"github.com/scionproto/scion/go/lib/prom"
)
const (
// Namespace is the metrics namespace for the SCIOND client API.
Namespace = "lib_sciond"
subsystemConn = "conn"
subsystemPath = "path"
subsystemASInfo = "as_info"
subsystemIFInfo = "if_info"
subsystemSVCInfo = "service_info"
subsystemRevocation = "revocation"
)
// Result values
const (
OkSuccess = prom.Success
ErrTimeout = prom.ErrTimeout
ErrNotClassified = prom.ErrNotClassified
)
type resultLabel struct {
Result string
}
// Labels returns the labels.
func (l resultLabel) Labels() []string {
return []string{prom.LabelResult}
}
// Values returns the values for the labels.
func (l resultLabel) Values() []string {
return []string{l.Result}
}
// Metric accessors.
var (
// PathRequests contains metrics for path requests.
PathRequests = newPathRequest()
// Revocations contains metrics for revocations.
Revocations = newRevocation()
// ASInfos contains metrics for AS info requests.
ASInfos = newASInfoRequest()
// IFInfos contains metrics for IF info requests.
IFInfos = newIFInfo()
// SVCInfos contains metrics for SVC info requests.
SVCInfos = newSVCInfo()
// Conns contains metrics for connections to SCIOND.
Conns = newConn()
)
// Request is the generic metric for requests.
type Request struct {
count *prometheus.CounterVec
}
// Inc increases the metric count. The result parameter is used to label the increment.
func (r Request) Inc(result string) {
r.count.WithLabelValues(result).Inc()
}
func newConn() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemConn, "connections_total",
"The amount of SCIOND connection attempts.", resultLabel{}),
}
}
func newPathRequest() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemPath, "requests_total",
"The amount of Path requests sent.", resultLabel{}),
}
}
func newRevocation() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemRevocation, "requests_total",
"The amount of Revocation requests sent.", resultLabel{}),
}
}
func newASInfoRequest() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemASInfo, "requests_total",
"The amount of AS info requests sent.", resultLabel{}),
}
}
func newSVCInfo() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemSVCInfo, "requests_total",
"The amount of SVC info requests sent.", resultLabel{}),
}
}
func newIFInfo() Request {
return Request{
count: prom.NewCounterVecWithLabels(Namespace, subsystemIFInfo, "requests_total",
"The amount of IF info requests sent.", resultLabel{}),
}
}