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marathon-sd - use Tasks.Ports instead of PortDefinitions.Ports if RequirePorts is false (#5022) (#5026) 

Signed-off-by: tommarute <tommarute@gmail.com>
This commit is contained in:
tommarute 2019-01-15 02:20:22 +09:00 committed by Brian Brazil
parent d9f4a8c95f
commit 9922c35a23
2 changed files with 86 additions and 85 deletions
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12
discovery/marathon/marathon.go
View File

@ -327,6 +327,7 @@ type App struct {
Container Container `json:"container"`
PortDefinitions []PortDefinition `json:"portDefinitions"`
Networks []Network `json:"networks"`
RequirePorts bool `json:"requirePorts"`
}
// isContainerNet checks if the app's first network is set to mode 'container'.
@ -435,7 +436,11 @@ func targetsForApp(app *App) []model.LabelSet {
for i := 0; i < len(app.PortDefinitions); i++ {
labels[i] = app.PortDefinitions[i].Labels
ports[i] = app.PortDefinitions[i].Port
// When requirePorts is false, this port becomes the 'servicePort', not the listen port.
// In this case, the port needs to be taken from the task instead of the app.
if app.RequirePorts {
ports[i] = app.PortDefinitions[i].Port
}
}
prefix = portDefinitionLabelPrefix
@ -456,8 +461,9 @@ func targetsForApp(app *App) []model.LabelSet {
// Iterate over the ports we gathered using one of the methods above.
for i, port := range ports {
// A zero port can appear in a portMapping, which means it is auto-generated.
// The allocated port appears at the corresponding index in the task's 'ports' array.
// A zero port here means that either the portMapping has a zero port defined,
// or there is a portDefinition with requirePorts set to false. This means the port
// is auto-generated by Mesos and needs to be looked up in the task.
if port == 0 && len(t.Ports) == len(ports) {
port = t.Ports[i]
}

159
discovery/marathon/marathon_test.go
View File

@ -343,6 +343,8 @@ func marathonTestAppListWithPortDefinitions(labels map[string]string, runningTas
task = Task{
ID: "test-task-1",
Host: "mesos-slave1",
// Auto-generated ports when requirePorts is false
Ports: []uint32{1234, 5678},
}
docker = DockerContainer{
Image: "repo/image:tag",
@ -358,6 +360,7 @@ func marathonTestAppListWithPortDefinitions(labels map[string]string, runningTas
{Labels: make(map[string]string), Port: 31000},
{Labels: labels, Port: 32000},
},
RequirePorts: false, // default
}
)
return &AppList{
@ -379,6 +382,80 @@ func TestMarathonSDSendGroupWithPortDefinitions(t *testing.T) {
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-slave1:1234" {
t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
}
if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
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-slave1:5678" {
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")] != "yes" {
t.Fatalf("Wrong portDefinitions label from the second port: %s", tgt[model.AddressLabel])
}
default:
t.Fatal("Did not get a target group.")
}
}
func marathonTestAppListWithPortDefinitionsRequirePorts(labels map[string]string, runningTasks int) *AppList {
var (
task = Task{
ID: "test-task-1",
Host: "mesos-slave1",
Ports: []uint32{31000, 32000},
}
docker = DockerContainer{
Image: "repo/image:tag",
}
container = Container{Docker: docker}
app = App{
ID: "test-service",
Tasks: []Task{task},
RunningTasks: runningTasks,
Labels: labels,
Container: container,
PortDefinitions: []PortDefinition{
{Labels: make(map[string]string), Port: 31000},
{Labels: labels, Port: 32000},
},
RequirePorts: true,
}
)
return &AppList{
Apps: []App{app},
}
}
func TestMarathonSDSendGroupWithPortDefinitionsRequirePorts(t *testing.T) {
var (
ch = make(chan []*targetgroup.Group, 1)
client = func(client *http.Client, url string) (*AppList, error) {
return marathonTestAppListWithPortDefinitionsRequirePorts(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)
}
@ -716,85 +793,3 @@ func TestMarathonSDSendGroupWithContainerNetworkAndPortMapping(t *testing.T) {
t.Fatal("Did not get a target group.")
}
}
func marathonTestAppListWithContainerNetworkAndPortDefinition(labels map[string]string, runningTasks int) *AppList {
var (
task = Task{
ID: "test-task-1",
Host: "mesos-slave1",
IPAddresses: []IPAddress{
{Address: "1.2.3.4"},
},
}
docker = DockerContainer{
Image: "repo/image:tag",
}
portDefinitions = []PortDefinition{
{Labels: labels, Port: 8080},
{Labels: make(map[string]string), Port: 1234},
}
container = Container{
Docker: docker,
}
networks = []Network{
{Mode: "container", Name: "test-network"},
}
app = App{
ID: "test-service",
Tasks: []Task{task},
RunningTasks: runningTasks,
Labels: labels,
Container: container,
Networks: networks,
PortDefinitions: portDefinitions,
}
)
return &AppList{
Apps: []App{app},
}
}
func TestMarathonSDSendGroupWithContainerNetworkAndPortDefinition(t *testing.T) {
var (
ch = make(chan []*targetgroup.Group, 1)
client = func(client *http.Client, url string) (*AppList, error) {
return marathonTestAppListWithContainerNetworkAndPortDefinition(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] != "1.2.3.4:8080" {
t.Fatalf("Wrong target address: %s", tgt[model.AddressLabel])
}
if tgt[model.LabelName(portMappingLabelPrefix+"prometheus")] != "" {
t.Fatalf("Wrong first portMappings label from the first port: %s", tgt[model.AddressLabel])
}
if tgt[model.LabelName(portDefinitionLabelPrefix+"prometheus")] != "yes" {
t.Fatalf("Wrong first portDefinitions label from the first port: %s", tgt[model.AddressLabel])
}
tgt = tg.Targets[1]
if tgt[model.AddressLabel] != "1.2.3.4:1234" {
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.")
}
}