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// Copyright 2023 The Prometheus 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.
//go:build interactive
// +build interactive
package internal
import (
"fmt"
"os"
"strings"
"testing"
"time"
"github.com/efficientgo/core/testutil"
"github.com/efficientgo/e2e"
e2edb "github.com/efficientgo/e2e/db"
e2einteractive "github.com/efficientgo/e2e/interactive"
e2emon "github.com/efficientgo/e2e/monitoring"
"github.com/efficientgo/e2e/monitoring/promconfig"
sdconfig "github.com/efficientgo/e2e/monitoring/promconfig/discovery/config"
"github.com/efficientgo/e2e/monitoring/promconfig/discovery/targetgroup"
"github.com/prometheus/common/model"
"gopkg.in/yaml.v2"
)
func TestPlayground(t *testing.T) {
// NOTE: Only one run at the time will work due to static ports used.
e, err := e2e.New(e2e.WithVerbose())
testutil.Ok(t, err)
t.Cleanup(e.Close)
// Setup in-memory Jaeger as our tracing backend.
jaeger := e2emon.AsInstrumented(e.Runnable("tracing").
WithPorts(
map[string]int{
"http.front": 16686,
"grpc.otlp": 4317,
"http.metrics": 14269,
}).
Init(e2e.StartOptions{
Image: "jaegertracing/all-in-one:1.35",
EnvVars: map[string]string{"COLLECTOR_OTLP_ENABLED": "true"},
}), "http.metrics")
testutil.Ok(t, e2e.StartAndWaitReady(jaeger))
prom := e2edb.NewPrometheus(e, "prometheus", e2edb.WithImage("prom/prometheus:v2.43.0-stringlabels"))
testutil.Ok(t, e2e.StartAndWaitReady(prom))
// Write config file for whatsup app.
c := Config{
PrometheusAddr: "http://" + prom.Endpoint("http"),
TraceEndpoint: jaeger.Endpoint("grpc.otlp"),
TraceSamplingRatio: 1,
}
b, err := yaml.Marshal(c)
testutil.Ok(t, err)
testutil.Ok(t, os.WriteFile("../whatsup.yaml", b, os.ModePerm))
testutil.Ok(t, prom.SetConfig(prometheusConfig(map[string]string{
"prometheus": prom.InternalEndpoint("http"),
"jaeger": jaeger.InternalEndpoint("http.metrics"),
"whatsup": whatsupAddr(fmt.Sprintf("host.docker.internal:%v", WhatsupPort)),
})))
// Due to VM based docker setups (e.g. MacOS), file sharing can be slower - do more sighups just in case (noops if all good)
prom.Exec(e2e.NewCommand("kill", "-SIGHUP", "1"))
prom.Exec(e2e.NewCommand("kill", "-SIGHUP", "1"))
// Best effort.
fmt.Println(e2einteractive.OpenInBrowser(convertToExternal("http://" + jaeger.Endpoint("http.front"))))
fmt.Println(e2einteractive.OpenInBrowser(convertToExternal("http://" + prom.Endpoint("http"))))
testutil.Ok(t, e2einteractive.RunUntilEndpointHitWithPort(19920))
}
func convertToExternal(endpoint string) string {
a := os.Getenv("HOSTADDR")
if a == "" {
return endpoint
}
// YOLO, fix and test.
return fmt.Sprintf("%v:%v", a, strings.Split(endpoint, ":")[2])
}
func prometheusConfig(jobToScrapeTargetAddress map[string]string) promconfig.Config {
h, _ := os.Hostname()
cfg := promconfig.Config{
GlobalConfig: promconfig.GlobalConfig{
ExternalLabels: map[model.LabelName]model.LabelValue{"prometheus": model.LabelValue(h)},
ScrapeInterval: model.Duration(15 * time.Second),
},
}
for job, s := range jobToScrapeTargetAddress {
scfg := &promconfig.ScrapeConfig{
JobName: job,
ServiceDiscoveryConfig: sdconfig.ServiceDiscoveryConfig{},
}
g := &targetgroup.Group{
Targets: []model.LabelSet{map[model.LabelName]model.LabelValue{
model.AddressLabel: model.LabelValue(s),
}},
}
scfg.ServiceDiscoveryConfig.StaticConfigs = append(scfg.ServiceDiscoveryConfig.StaticConfigs, g)
cfg.ScrapeConfigs = append(cfg.ScrapeConfigs, scfg)
}
return cfg
}
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