github.com/nmstate/kubernetes-nmstate@v0.82.0/test/e2e/handler/metrics.go (about)

     1  /*
     2  Copyright The Kubernetes NMState Authors.
     3  
     4  
     5  Licensed under the Apache License, Version 2.0 (the "License");
     6  you may not use this file except in compliance with the License.
     7  You may obtain a copy of the License at
     8  
     9      http://www.apache.org/licenses/LICENSE-2.0
    10  
    11  Unless required by applicable law or agreed to in writing, software
    12  distributed under the License is distributed on an "AS IS" BASIS,
    13  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  See the License for the specific language governing permissions and
    15  limitations under the License.
    16  */
    17  
    18  package handler
    19  
    20  import (
    21  	"strings"
    22  
    23  	"sigs.k8s.io/controller-runtime/pkg/metrics"
    24  
    25  	"github.com/nmstate/kubernetes-nmstate/test/cmd"
    26  	"github.com/nmstate/kubernetes-nmstate/test/runner"
    27  )
    28  
    29  func getMetrics(token string) map[string]string {
    30  	bearer := "Authorization: Bearer " + token
    31  	return indexMetrics(runner.RunAtMetricsPod("curl", "-s", "-k", "--header",
    32  		bearer, metrics.DefaultBindAddress, "https://127.0.0.1:8443/metrics"))
    33  }
    34  
    35  func getPrometheusToken() (string, error) {
    36  	const (
    37  		monitoringNamespace = "monitoring"
    38  		prometheusPod       = "prometheus-k8s-0"
    39  		container           = "prometheus"
    40  		tokenPath           = "/var/run/secrets/kubernetes.io/serviceaccount/token" // #nosec G101
    41  	)
    42  
    43  	return cmd.Kubectl("exec", "-n", monitoringNamespace, prometheusPod, "-c", container, "--", "cat", tokenPath)
    44  }
    45  
    46  func indexMetrics(metrics string) map[string]string {
    47  	metricsMap := map[string]string{}
    48  	for _, metric := range strings.Split(metrics, "\n") {
    49  		if strings.Contains(metric, "#") { // Ignore comments
    50  			continue
    51  		}
    52  		metricSplit := strings.Split(metric, " ")
    53  		if len(metricSplit) != 2 {
    54  			continue
    55  		}
    56  		metricsMap[metricSplit[0]] = metricSplit[1]
    57  	}
    58  	return metricsMap
    59  }