mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-20 07:47:31 -07:00
584 lines
20 KiB
Go
584 lines
20 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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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/model"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/discovery"
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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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)
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func testConfig() SDConfig {
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return SDConfig{Servers: testServers}
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}
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func testUpdateServices(client appListClient) ([]*targetgroup.Group, error) {
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cfg := testConfig()
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reg := prometheus.NewRegistry()
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refreshMetrics := discovery.NewRefreshMetrics(reg)
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metrics := cfg.NewDiscovererMetrics(reg, refreshMetrics)
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err := metrics.Register()
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if err != nil {
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return nil, err
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}
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defer metrics.Unregister()
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defer refreshMetrics.Unregister()
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md, err := NewDiscovery(cfg, nil, metrics)
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if err != nil {
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return nil, err
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}
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if client != nil {
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md.appsClient = client
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}
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return md.refresh(context.Background())
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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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client = func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return nil, errTesting
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}
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)
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tgs, err := testUpdateServices(client)
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require.ErrorIs(t, err, errTesting)
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require.Empty(t, tgs, "Expected no target groups.")
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}
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func TestMarathonSDEmptyList(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) { return &appList{}, nil }
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Empty(t, tgs, "Expected no target groups.")
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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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t = task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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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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portMappings = []portMapping{
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{Labels: labels, HostPort: 31000},
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}
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container = container{Docker: docker, PortMappings: portMappings}
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a = app{
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ID: "test-service",
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Tasks: []task{t},
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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{a},
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}
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}
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func TestMarathonSDSendGroup(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppList(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 1, "Expected 1 target.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:31000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "yes", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
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}
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func TestMarathonSDRemoveApp(t *testing.T) {
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cfg := testConfig()
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reg := prometheus.NewRegistry()
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refreshMetrics := discovery.NewRefreshMetrics(reg)
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metrics := cfg.NewDiscovererMetrics(reg, refreshMetrics)
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require.NoError(t, metrics.Register())
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defer metrics.Unregister()
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defer refreshMetrics.Unregister()
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md, err := NewDiscovery(cfg, nil, metrics)
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require.NoError(t, err)
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md.appsClient = func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppList(marathonValidLabel, 1), nil
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}
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tgs, err := md.refresh(context.Background())
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require.NoError(t, err, "Got error on first update.")
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require.Len(t, tgs, 1, "Expected 1 targetgroup.")
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tg1 := tgs[0]
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md.appsClient = func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppList(marathonValidLabel, 0), nil
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}
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tgs, err = md.refresh(context.Background())
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require.NoError(t, err, "Got error on second update.")
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require.Len(t, tgs, 1, "Expected 1 targetgroup.")
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tg2 := tgs[0]
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require.NotEmpty(t, tg2.Targets, "Got a non-empty target set.")
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require.Equal(t, tg1.Source, tg2.Source, "Source is different.")
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}
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func marathonTestAppListWithMultiplePorts(labels map[string]string, runningTasks int) *appList {
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var (
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t = task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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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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portMappings = []portMapping{
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{Labels: labels, HostPort: 31000},
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{Labels: make(map[string]string), HostPort: 32000},
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}
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container = container{Docker: docker, PortMappings: portMappings}
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a = app{
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ID: "test-service",
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Tasks: []task{t},
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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{a},
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}
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}
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func TestMarathonSDSendGroupWithMultiplePort(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppListWithMultiplePorts(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 2, "Wrong number of targets.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:31000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "yes", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]),
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"Wrong portMappings label from the first port: %s", tgt[model.AddressLabel])
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tgt = tg.Targets[1]
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require.Equal(t, "mesos-slave1:32000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]),
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"Wrong portMappings label from the second port: %s", tgt[model.AddressLabel])
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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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t = 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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a = app{
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ID: "test-service-zero-ports",
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Tasks: []task{t},
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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{a},
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}
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}
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func TestMarathonZeroTaskPorts(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestZeroTaskPortAppList(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service-zero-ports", tg.Source, "Wrong target group name.")
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require.Empty(t, tg.Targets, "Wrong number of targets.")
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}
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func Test500ErrorHttpResponseWithValidJSONBody(t *testing.T) {
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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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// Execute test case and validate behavior.
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_, err := testUpdateServices(nil)
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require.Error(t, err, "Expected error for 5xx HTTP response from marathon server.")
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}
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func marathonTestAppListWithPortDefinitions(labels map[string]string, runningTasks int) *appList {
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var (
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t = task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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// Auto-generated ports when requirePorts is false
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Ports: []uint32{1234, 5678},
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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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a = app{
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ID: "test-service",
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Tasks: []task{t},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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PortDefinitions: []portDefinition{
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{Labels: make(map[string]string), Port: 31000},
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{Labels: labels, Port: 32000},
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},
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RequirePorts: false, // default
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}
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)
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return &appList{
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Apps: []app{a},
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}
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}
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func TestMarathonSDSendGroupWithPortDefinitions(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppListWithPortDefinitions(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 2, "Wrong number of targets.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:1234", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]),
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"Wrong portMappings label from the first port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]),
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"Wrong portDefinitions label from the first port.")
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tgt = tg.Targets[1]
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require.Equal(t, "mesos-slave1:5678", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Empty(t, tgt[model.LabelName(portMappingLabelPrefix+"prometheus")], "Wrong portMappings label from the second port.")
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require.Equal(t, "yes", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
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}
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func marathonTestAppListWithPortDefinitionsRequirePorts(labels map[string]string, runningTasks int) *appList {
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var (
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t = 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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a = app{
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ID: "test-service",
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Tasks: []task{t},
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RunningTasks: runningTasks,
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Labels: labels,
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Container: container,
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PortDefinitions: []portDefinition{
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{Labels: make(map[string]string), Port: 31000},
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{Labels: labels, Port: 32000},
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},
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RequirePorts: true,
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}
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)
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return &appList{
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Apps: []app{a},
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}
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}
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func TestMarathonSDSendGroupWithPortDefinitionsRequirePorts(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppListWithPortDefinitionsRequirePorts(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 2, "Wrong number of targets.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:31000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the first port.")
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tgt = tg.Targets[1]
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require.Equal(t, "mesos-slave1:32000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the second port.")
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require.Equal(t, "yes", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
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}
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func marathonTestAppListWithPorts(labels map[string]string, runningTasks int) *appList {
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var (
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t = 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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a = app{
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ID: "test-service",
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Tasks: []task{t},
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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{a},
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}
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}
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func TestMarathonSDSendGroupWithPorts(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppListWithPorts(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 2, "Wrong number of targets.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:31000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the first port.")
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tgt = tg.Targets[1]
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require.Equal(t, "mesos-slave1:32000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the second port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
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}
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func marathonTestAppListWithContainerPortMappings(labels map[string]string, runningTasks int) *appList {
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var (
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t = task{
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ID: "test-task-1",
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Host: "mesos-slave1",
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Ports: []uint32{
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12345, // 'Automatically-generated' port
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32000,
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},
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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{
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Docker: docker,
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PortMappings: []portMapping{
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{Labels: labels, HostPort: 0},
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{Labels: make(map[string]string), HostPort: 32000},
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},
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}
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a = app{
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ID: "test-service",
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Tasks: []task{t},
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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{a},
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}
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}
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|
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func TestMarathonSDSendGroupWithContainerPortMappings(t *testing.T) {
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client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
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return marathonTestAppListWithContainerPortMappings(marathonValidLabel, 1), nil
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}
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tgs, err := testUpdateServices(client)
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require.NoError(t, err)
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require.Len(t, tgs, 1, "Expected 1 target group.")
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tg := tgs[0]
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require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
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require.Len(t, tg.Targets, 2, "Wrong number of targets.")
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tgt := tg.Targets[0]
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require.Equal(t, "mesos-slave1:12345", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "yes", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the first port.")
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tgt = tg.Targets[1]
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require.Equal(t, "mesos-slave1:32000", string(tgt[model.AddressLabel]), "Wrong target address.")
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require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the second port.")
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require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
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}
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|
|
func marathonTestAppListWithDockerContainerPortMappings(labels map[string]string, runningTasks int) *appList {
|
|
var (
|
|
t = task{
|
|
ID: "test-task-1",
|
|
Host: "mesos-slave1",
|
|
Ports: []uint32{
|
|
31000,
|
|
12345, // 'Automatically-generated' port
|
|
},
|
|
}
|
|
docker = dockerContainer{
|
|
Image: "repo/image:tag",
|
|
PortMappings: []portMapping{
|
|
{Labels: labels, HostPort: 31000},
|
|
{Labels: make(map[string]string), HostPort: 0},
|
|
},
|
|
}
|
|
container = container{
|
|
Docker: docker,
|
|
}
|
|
a = app{
|
|
ID: "test-service",
|
|
Tasks: []task{t},
|
|
RunningTasks: runningTasks,
|
|
Labels: labels,
|
|
Container: container,
|
|
}
|
|
)
|
|
return &appList{
|
|
Apps: []app{a},
|
|
}
|
|
}
|
|
|
|
func TestMarathonSDSendGroupWithDockerContainerPortMappings(t *testing.T) {
|
|
client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
|
|
return marathonTestAppListWithDockerContainerPortMappings(marathonValidLabel, 1), nil
|
|
}
|
|
tgs, err := testUpdateServices(client)
|
|
require.NoError(t, err)
|
|
require.Len(t, tgs, 1, "Expected 1 target group.")
|
|
|
|
tg := tgs[0]
|
|
require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
|
|
require.Len(t, tg.Targets, 2, "Wrong number of targets.")
|
|
|
|
tgt := tg.Targets[0]
|
|
require.Equal(t, "mesos-slave1:31000", string(tgt[model.AddressLabel]), "Wrong target address.")
|
|
require.Equal(t, "yes", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the first port.")
|
|
|
|
tgt = tg.Targets[1]
|
|
require.Equal(t, "mesos-slave1:12345", string(tgt[model.AddressLabel]), "Wrong target address.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the second port.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
|
|
}
|
|
|
|
func marathonTestAppListWithContainerNetworkAndPortMappings(labels map[string]string, runningTasks int) *appList {
|
|
var (
|
|
t = task{
|
|
ID: "test-task-1",
|
|
Host: "mesos-slave1",
|
|
IPAddresses: []ipAddress{
|
|
{Address: "1.2.3.4"},
|
|
},
|
|
}
|
|
docker = dockerContainer{
|
|
Image: "repo/image:tag",
|
|
}
|
|
portMappings = []portMapping{
|
|
{Labels: labels, ContainerPort: 8080, HostPort: 31000},
|
|
{Labels: make(map[string]string), ContainerPort: 1234, HostPort: 32000},
|
|
}
|
|
container = container{
|
|
Docker: docker,
|
|
PortMappings: portMappings,
|
|
}
|
|
networks = []network{
|
|
{Mode: "container", Name: "test-network"},
|
|
}
|
|
a = app{
|
|
ID: "test-service",
|
|
Tasks: []task{t},
|
|
RunningTasks: runningTasks,
|
|
Labels: labels,
|
|
Container: container,
|
|
Networks: networks,
|
|
}
|
|
)
|
|
return &appList{
|
|
Apps: []app{a},
|
|
}
|
|
}
|
|
|
|
func TestMarathonSDSendGroupWithContainerNetworkAndPortMapping(t *testing.T) {
|
|
client := func(_ context.Context, _ *http.Client, _ string) (*appList, error) {
|
|
return marathonTestAppListWithContainerNetworkAndPortMappings(marathonValidLabel, 1), nil
|
|
}
|
|
tgs, err := testUpdateServices(client)
|
|
require.NoError(t, err)
|
|
require.Len(t, tgs, 1, "Expected 1 target group.")
|
|
|
|
tg := tgs[0]
|
|
require.Equal(t, "test-service", tg.Source, "Wrong target group name.")
|
|
require.Len(t, tg.Targets, 2, "Wrong number of targets.")
|
|
|
|
tgt := tg.Targets[0]
|
|
require.Equal(t, "1.2.3.4:8080", string(tgt[model.AddressLabel]), "Wrong target address.")
|
|
require.Equal(t, "yes", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the first port.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the first port.")
|
|
|
|
tgt = tg.Targets[1]
|
|
require.Equal(t, "1.2.3.4:1234", string(tgt[model.AddressLabel]), "Wrong target address.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portMappingLabelPrefix+"prometheus")]), "Wrong portMappings label from the second port.")
|
|
require.Equal(t, "", string(tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")]), "Wrong portDefinitions label from the second port.")
|
|
}
|