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Add ability for marathon provider to set maxconn values

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Initial implementation: Force both to be present to trigger behavior.

add ability to see rendered template in debug

add support for loadbalancer and circuit breaker specification

add documentation for new configuration
This commit is contained in:
Bruce Lee 2016-08-13 12:55:15 -04:00
parent 4783c7f70a
commit 99ca5d0a03
5 changed files with 298 additions and 15 deletions
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194
provider/marathon_test.go
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@ -111,6 +111,200 @@ func TestMarathonLoadConfig(t *testing.T) {
},
},
},
{
applications: &marathon.Applications{
Apps: []marathon.Application{
{
ID: "/testLoadBalancerAndCircuitBreaker",
Ports: []int{80},
Labels: &map[string]string{
"traefik.backend.loadbalancer.method": "drr",
"traefik.backend.circuitbreaker.expression": "NetworkErrorRatio() > 0.5",
},
},
},
},
tasks: &marathon.Tasks{
Tasks: []marathon.Task{
{
ID: "testLoadBalancerAndCircuitBreaker",
AppID: "/testLoadBalancerAndCircuitBreaker",
Host: "127.0.0.1",
Ports: []int{80},
},
},
},
expectedFrontends: map[string]*types.Frontend{
`frontend-testLoadBalancerAndCircuitBreaker`: {
Backend: "backend-testLoadBalancerAndCircuitBreaker",
PassHostHeader: true,
EntryPoints: []string{},
Routes: map[string]types.Route{
`route-host-testLoadBalancerAndCircuitBreaker`: {
Rule: "Host:testLoadBalancerAndCircuitBreaker.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-testLoadBalancerAndCircuitBreaker": {
Servers: map[string]types.Server{
"server-testLoadBalancerAndCircuitBreaker": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
},
},
},
{
applications: &marathon.Applications{
Apps: []marathon.Application{
{
ID: "/testMaxConn",
Ports: []int{80},
Labels: &map[string]string{
"traefik.backend.maxconn.amount": "1000",
"traefik.backend.maxconn.extractorfunc": "client.ip",
},
},
},
},
tasks: &marathon.Tasks{
Tasks: []marathon.Task{
{
ID: "testMaxConn",
AppID: "/testMaxConn",
Host: "127.0.0.1",
Ports: []int{80},
},
},
},
expectedFrontends: map[string]*types.Frontend{
`frontend-testMaxConn`: {
Backend: "backend-testMaxConn",
PassHostHeader: true,
EntryPoints: []string{},
Routes: map[string]types.Route{
`route-host-testMaxConn`: {
Rule: "Host:testMaxConn.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-testMaxConn": {
Servers: map[string]types.Server{
"server-testMaxConn": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "client.ip",
},
},
},
},
{
applications: &marathon.Applications{
Apps: []marathon.Application{
{
ID: "/testMaxConnOnlySpecifyAmount",
Ports: []int{80},
Labels: &map[string]string{
"traefik.backend.maxconn.amount": "1000",
},
},
},
},
tasks: &marathon.Tasks{
Tasks: []marathon.Task{
{
ID: "testMaxConnOnlySpecifyAmount",
AppID: "/testMaxConnOnlySpecifyAmount",
Host: "127.0.0.1",
Ports: []int{80},
},
},
},
expectedFrontends: map[string]*types.Frontend{
`frontend-testMaxConnOnlySpecifyAmount`: {
Backend: "backend-testMaxConnOnlySpecifyAmount",
PassHostHeader: true,
EntryPoints: []string{},
Routes: map[string]types.Route{
`route-host-testMaxConnOnlySpecifyAmount`: {
Rule: "Host:testMaxConnOnlySpecifyAmount.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-testMaxConnOnlySpecifyAmount": {
Servers: map[string]types.Server{
"server-testMaxConnOnlySpecifyAmount": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
},
MaxConn: nil,
},
},
},
{
applications: &marathon.Applications{
Apps: []marathon.Application{
{
ID: "/testMaxConnOnlyExtractorFunc",
Ports: []int{80},
Labels: &map[string]string{
"traefik.backend.maxconn.extractorfunc": "client.ip",
},
},
},
},
tasks: &marathon.Tasks{
Tasks: []marathon.Task{
{
ID: "testMaxConnOnlyExtractorFunc",
AppID: "/testMaxConnOnlyExtractorFunc",
Host: "127.0.0.1",
Ports: []int{80},
},
},
},
expectedFrontends: map[string]*types.Frontend{
`frontend-testMaxConnOnlyExtractorFunc`: {
Backend: "backend-testMaxConnOnlyExtractorFunc",
PassHostHeader: true,
EntryPoints: []string{},
Routes: map[string]types.Route{
`route-host-testMaxConnOnlyExtractorFunc`: {
Rule: "Host:testMaxConnOnlyExtractorFunc.docker.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-testMaxConnOnlyExtractorFunc": {
Servers: map[string]types.Server{
"server-testMaxConnOnlyExtractorFunc": {
URL: "http://127.0.0.1:80",
Weight: 0,
},
},
MaxConn: nil,
},
},
},
}
for _, c := range cases {