mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-13 17:14:05 -08:00
578 lines
16 KiB
Go
578 lines
16 KiB
Go
// Copyright 2015 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package marathon
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import (
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"context"
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"errors"
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"io"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"github.com/prometheus/common/model"
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"github.com/prometheus/prometheus/discovery/targetgroup"
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)
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var (
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marathonValidLabel = map[string]string{"prometheus": "yes"}
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testServers = []string{"http://localhost:8080"}
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conf = SDConfig{Servers: testServers}
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)
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func testUpdateServices(client AppListClient, ch chan []*targetgroup.Group) error {
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md, err := NewDiscovery(conf, nil)
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if err != nil {
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return err
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}
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md.appsClient = client
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return md.updateServices(context.Background(), ch)
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}
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func TestMarathonSDHandleError(t *testing.T) {
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var (
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errTesting = errors.New("testing failure")
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) { return nil, errTesting }
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)
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if err := testUpdateServices(client, ch); err != errTesting {
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t.Fatalf("Expected error: %s", err)
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}
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select {
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case tg := <-ch:
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t.Fatalf("Got group: %s", tg)
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default:
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}
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}
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func TestMarathonSDEmptyList(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) { return &AppList{}, nil }
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tg := <-ch:
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if len(tg) > 0 {
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t.Fatalf("Got group: %v", tg)
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}
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default:
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}
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}
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func marathonTestAppList(labels map[string]string, runningTasks int) *AppList {
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var (
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task = Task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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Ports: []uint32{31000},
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}
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docker = DockerContainer{
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Image: "repo/image:tag",
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PortMappings: []PortMappings{
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{Labels: labels},
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},
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}
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container = Container{Docker: docker}
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app = App{
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ID: "test-service",
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Tasks: []Task{task},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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PortDefinitions: []PortDefinitions{
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{Labels: make(map[string]string)},
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},
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}
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)
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return &AppList{
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Apps: []App{app},
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}
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}
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func TestMarathonSDSendGroup(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppList(marathonValidLabel, 1), nil
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}
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tgs := <-ch:
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tg := tgs[0]
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if tg.Source != "test-service" {
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t.Fatalf("Wrong target group name: %s", tg.Source)
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}
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if len(tg.Targets) != 1 {
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t.Fatalf("Wrong number of targets: %v", tg.Targets)
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}
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tgt := tg.Targets[0]
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if tgt[model.AddressLabel] != "mesos-slave1:31000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "yes" {
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t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
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}
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default:
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t.Fatal("Did not get a target group.")
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}
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}
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func TestMarathonSDRemoveApp(t *testing.T) {
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var ch = make(chan []*targetgroup.Group, 1)
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md, err := NewDiscovery(conf, nil)
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if err != nil {
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t.Fatalf("%s", err)
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}
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md.appsClient = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppList(marathonValidLabel, 1), nil
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}
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if err := md.updateServices(context.Background(), ch); err != nil {
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t.Fatalf("Got error on first update: %s", err)
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}
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up1 := (<-ch)[0]
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md.appsClient = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppList(marathonValidLabel, 0), nil
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}
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if err := md.updateServices(context.Background(), ch); err != nil {
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t.Fatalf("Got error on second update: %s", err)
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}
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up2 := (<-ch)[0]
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if up2.Source != up1.Source {
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t.Fatalf("Source is different: %s", up2)
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if len(up2.Targets) > 0 {
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t.Fatalf("Got a non-empty target set: %s", up2.Targets)
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}
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}
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}
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func TestMarathonSDRunAndStop(t *testing.T) {
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var (
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refreshInterval = model.Duration(time.Millisecond * 10)
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conf = SDConfig{Servers: testServers, RefreshInterval: refreshInterval}
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ch = make(chan []*targetgroup.Group)
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doneCh = make(chan error)
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)
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md, err := NewDiscovery(conf, nil)
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if err != nil {
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t.Fatalf("%s", err)
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}
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md.appsClient = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppList(marathonValidLabel, 1), nil
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}
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ctx, cancel := context.WithCancel(context.Background())
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go func() {
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md.Run(ctx, ch)
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close(doneCh)
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}()
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timeout := time.After(md.refreshInterval * 3)
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for {
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select {
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case <-ch:
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cancel()
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case <-doneCh:
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return
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case <-timeout:
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t.Fatalf("Update took too long.")
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}
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}
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}
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func marathonTestAppListWithMutiplePorts(labels map[string]string, runningTasks int) *AppList {
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var (
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task = Task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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Ports: []uint32{31000, 32000},
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}
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docker = DockerContainer{
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Image: "repo/image:tag",
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PortMappings: []PortMappings{
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{Labels: labels},
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{Labels: make(map[string]string)},
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},
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}
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container = Container{Docker: docker}
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app = App{
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ID: "test-service",
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Tasks: []Task{task},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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PortDefinitions: []PortDefinitions{
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{Labels: make(map[string]string)},
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{Labels: labels},
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},
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}
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)
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return &AppList{
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Apps: []App{app},
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}
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}
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func TestMarathonSDSendGroupWithMutiplePort(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppListWithMutiplePorts(marathonValidLabel, 1), nil
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}
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tgs := <-ch:
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tg := tgs[0]
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if tg.Source != "test-service" {
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t.Fatalf("Wrong target group name: %s", tg.Source)
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}
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if len(tg.Targets) != 2 {
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t.Fatalf("Wrong number of targets: %v", tg.Targets)
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}
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tgt := tg.Targets[0]
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if tgt[model.AddressLabel] != "mesos-slave1:31000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "yes" {
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t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
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}
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tgt = tg.Targets[1]
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if tgt[model.AddressLabel] != "mesos-slave1:32000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong portMappings label from the second port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "yes" {
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t.Fatalf("Wrong portDefinitions label from the second port: %s", tgt[model.AddressLabel])
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}
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default:
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t.Fatal("Did not get a target group.")
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}
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}
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func marathonTestZeroTaskPortAppList(labels map[string]string, runningTasks int) *AppList {
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var (
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task = Task{
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ID: "test-task-2",
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Host: "mesos-slave-2",
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Ports: []uint32{},
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}
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docker = DockerContainer{Image: "repo/image:tag"}
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container = Container{Docker: docker}
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app = App{
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ID: "test-service-zero-ports",
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Tasks: []Task{task},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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}
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)
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return &AppList{
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Apps: []App{app},
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}
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}
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func TestMarathonZeroTaskPorts(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestZeroTaskPortAppList(marathonValidLabel, 1), nil
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}
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tgs := <-ch:
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tg := tgs[0]
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if tg.Source != "test-service-zero-ports" {
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t.Fatalf("Wrong target group name: %s", tg.Source)
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}
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if len(tg.Targets) != 0 {
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t.Fatalf("Wrong number of targets: %v", tg.Targets)
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}
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default:
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t.Fatal("Did not get a target group.")
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}
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}
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func Test500ErrorHttpResponseWithValidJSONBody(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = fetchApps
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)
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// Simulate 500 error with a valid JSON response.
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respHandler := func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusInternalServerError)
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w.Header().Set("Content-Type", "application/json")
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io.WriteString(w, `{}`)
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}
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// Create a test server with mock HTTP handler.
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ts := httptest.NewServer(http.HandlerFunc(respHandler))
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defer ts.Close()
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// Backup conf for future tests.
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backupConf := conf
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defer func() {
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conf = backupConf
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}()
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// Setup conf for the test case.
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conf = SDConfig{Servers: []string{ts.URL}}
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// Execute test case and validate behaviour.
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if err := testUpdateServices(client, ch); err == nil {
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t.Fatalf("Expected error for 5xx HTTP response from marathon server")
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}
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}
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func marathonTestAppListWithoutPortMappings(labels map[string]string, runningTasks int) *AppList {
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var (
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task = Task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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Ports: []uint32{31000, 32000},
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}
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docker = DockerContainer{
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Image: "repo/image:tag",
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}
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container = Container{Docker: docker}
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app = App{
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ID: "test-service",
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Tasks: []Task{task},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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PortDefinitions: []PortDefinitions{
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{Labels: make(map[string]string)},
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{Labels: labels},
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},
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}
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)
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return &AppList{
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Apps: []App{app},
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}
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}
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func TestMarathonSDSendGroupWithoutPortMappings(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppListWithoutPortMappings(marathonValidLabel, 1), nil
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}
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tgs := <-ch:
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tg := tgs[0]
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if tg.Source != "test-service" {
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t.Fatalf("Wrong target group name: %s", tg.Source)
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}
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if len(tg.Targets) != 2 {
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t.Fatalf("Wrong number of targets: %v", tg.Targets)
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}
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tgt := tg.Targets[0]
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if tgt[model.AddressLabel] != "mesos-slave1:31000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
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}
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tgt = tg.Targets[1]
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if tgt[model.AddressLabel] != "mesos-slave1:32000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong portMappings label from the second port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "yes" {
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t.Fatalf("Wrong portDefinitions label from the second port: %s", tgt[model.AddressLabel])
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}
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default:
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t.Fatal("Did not get a target group.")
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}
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}
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func marathonTestAppListWithoutPortDefinitions(labels map[string]string, runningTasks int) *AppList {
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var (
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task = Task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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Ports: []uint32{31000, 32000},
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}
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docker = DockerContainer{
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Image: "repo/image:tag",
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PortMappings: []PortMappings{
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{Labels: labels},
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{Labels: make(map[string]string)},
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},
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}
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container = Container{Docker: docker}
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app = App{
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ID: "test-service",
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Tasks: []Task{task},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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}
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)
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return &AppList{
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Apps: []App{app},
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}
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}
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func TestMarathonSDSendGroupWithoutPortDefinitions(t *testing.T) {
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var (
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ch = make(chan []*targetgroup.Group, 1)
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client = func(client *http.Client, url string) (*AppList, error) {
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return marathonTestAppListWithoutPortDefinitions(marathonValidLabel, 1), nil
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}
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)
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if err := testUpdateServices(client, ch); err != nil {
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t.Fatalf("Got error: %s", err)
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}
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select {
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case tgs := <-ch:
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tg := tgs[0]
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if tg.Source != "test-service" {
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t.Fatalf("Wrong target group name: %s", tg.Source)
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}
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if len(tg.Targets) != 2 {
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t.Fatalf("Wrong number of targets: %v", tg.Targets)
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}
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tgt := tg.Targets[0]
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if tgt[model.AddressLabel] != "mesos-slave1:31000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "yes" {
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t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
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}
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tgt = tg.Targets[1]
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if tgt[model.AddressLabel] != "mesos-slave1:32000" {
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t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong portMappings label from the second port: %s", tgt[model.AddressLabel])
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}
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if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
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t.Fatalf("Wrong portDefinitions label from the second port: %s", tgt[model.AddressLabel])
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}
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default:
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t.Fatal("Did not get a target group.")
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}
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}
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func marathonTestAppListWithContainerPortMappings(labels map[string]string, runningTasks int) *AppList {
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var (
|
|
task = Task{
|
|
ID: "test-task-1",
|
|
Host: "mesos-slave1",
|
|
Ports: []uint32{31000, 32000},
|
|
}
|
|
docker = DockerContainer{
|
|
Image: "repo/image:tag",
|
|
}
|
|
container = Container{
|
|
Docker: docker,
|
|
PortMappings: []PortMappings{
|
|
{Labels: labels},
|
|
{Labels: make(map[string]string)},
|
|
},
|
|
}
|
|
app = App{
|
|
ID: "test-service",
|
|
Tasks: []Task{task},
|
|
RunningTasks: runningTasks,
|
|
Labels: labels,
|
|
Container: container,
|
|
}
|
|
)
|
|
return &AppList{
|
|
Apps: []App{app},
|
|
}
|
|
}
|
|
|
|
func TestMarathonSDSendGroupWithContainerPortMappings(t *testing.T) {
|
|
var (
|
|
ch = make(chan []*targetgroup.Group, 1)
|
|
client = func(client *http.Client, url string) (*AppList, error) {
|
|
return marathonTestAppListWithContainerPortMappings(marathonValidLabel, 1), nil
|
|
}
|
|
)
|
|
if err := testUpdateServices(client, ch); err != nil {
|
|
t.Fatalf("Got error: %s", err)
|
|
}
|
|
select {
|
|
case tgs := <-ch:
|
|
tg := tgs[0]
|
|
|
|
if tg.Source != "test-service" {
|
|
t.Fatalf("Wrong target group name: %s", tg.Source)
|
|
}
|
|
if len(tg.Targets) != 2 {
|
|
t.Fatalf("Wrong number of targets: %v", tg.Targets)
|
|
}
|
|
tgt := tg.Targets[0]
|
|
if tgt[model.AddressLabel] != "mesos-slave1:31000" {
|
|
t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
|
|
}
|
|
if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "yes" {
|
|
t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
|
|
}
|
|
if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
|
|
t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
|
|
}
|
|
tgt = tg.Targets[1]
|
|
if tgt[model.AddressLabel] != "mesos-slave1:32000" {
|
|
t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
|
|
}
|
|
if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
|
|
t.Fatalf("Wrong portMappings label from the second port: %s", tgt[model.AddressLabel])
|
|
}
|
|
if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "" {
|
|
t.Fatalf("Wrong portDefinitions label from the second port: %s", tgt[model.AddressLabel])
|
|
}
|
|
default:
|
|
t.Fatal("Did not get a target group.")
|
|
}
|
|
}
|