istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/collateral/metrics/otel.go (about)

     1  // Copyright 2019 Istio 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 metrics
    16  
    17  import (
    18  	"strings"
    19  
    20  	"istio.io/istio/pkg/monitoring"
    21  	"istio.io/istio/pkg/slices"
    22  )
    23  
    24  var charReplacer = strings.NewReplacer("/", "_", ".", "_", " ", "_", "-", "")
    25  
    26  func promName(metricName string) string {
    27  	s := strings.TrimPrefix(metricName, "/")
    28  	return charReplacer.Replace(s)
    29  }
    30  
    31  func ExportedMetrics() []monitoring.MetricDefinition {
    32  	return slices.Map(monitoring.ExportMetricDefinitions(), func(e monitoring.MetricDefinition) monitoring.MetricDefinition {
    33  		e.Name = promName(e.Name)
    34  		return e
    35  	})
    36  }