traefik/integration/constraint_test.go

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package main
import (
"net/http"
"os/exec"
"time"
"github.com/go-check/check"
"github.com/hashicorp/consul/api"
checker "github.com/vdemeester/shakers"
)
// Constraint test suite
type ConstraintSuite struct {
BaseSuite
consulIP string
consulClient *api.Client
}
func (s *ConstraintSuite) SetUpSuite(c *check.C) {
s.createComposeProject(c, "constraints")
s.composeProject.Start(c)
consul := s.composeProject.Container(c, "consul")
s.consulIP = consul.NetworkSettings.IPAddress
config := api.DefaultConfig()
config.Address = s.consulIP + ":8500"
consulClient, err := api.NewClient(config)
if err != nil {
c.Fatalf("Error creating consul client")
}
s.consulClient = consulClient
// Wait for consul to elect itself leader
time.Sleep(2000 * time.Millisecond)
}
func (s *ConstraintSuite) registerService(name string, address string, port int, tags []string) error {
catalog := s.consulClient.Catalog()
_, err := catalog.Register(
&api.CatalogRegistration{
Node: address,
Address: address,
Service: &api.AgentService{
ID: name,
Service: name,
Address: address,
Port: port,
Tags: tags,
},
},
&api.WriteOptions{},
)
return err
}
func (s *ConstraintSuite) deregisterService(name string, address string) error {
catalog := s.consulClient.Catalog()
_, err := catalog.Deregister(
&api.CatalogDeregistration{
Node: address,
Address: address,
ServiceID: name,
},
&api.WriteOptions{},
)
return err
}
func (s *ConstraintSuite) TestMatchConstraintGlobal(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--constraints=tag==api")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{"traefik.tags=api"})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 200)
}
func (s *ConstraintSuite) TestDoesNotMatchConstraintGlobal(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--constraints=tag==api")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 404)
}
func (s *ConstraintSuite) TestMatchConstraintProvider(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--consulCatalog.constraints=tag==api")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{"traefik.tags=api"})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 200)
}
func (s *ConstraintSuite) TestDoesNotMatchConstraintProvider(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--consulCatalog.constraints=tag==api")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 404)
}
func (s *ConstraintSuite) TestMatchMultipleConstraint(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--consulCatalog.constraints=tag==api", "--constraints=tag!=us-*")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{"traefik.tags=api", "traefik.tags=eu-1"})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 200)
}
func (s *ConstraintSuite) TestDoesNotMatchMultipleConstraint(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml", "--consulCatalog.constraints=tag==api", "--constraints=tag!=us-*")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx := s.composeProject.Container(c, "nginx")
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80, []string{"traefik.tags=api", "traefik.tags=us-1"})
c.Assert(err, checker.IsNil, check.Commentf("Error registering service"))
defer s.deregisterService("test", nginx.NetworkSettings.IPAddress)
time.Sleep(5000 * time.Millisecond)
client := &http.Client{}
req, err := http.NewRequest("GET", "http://127.0.0.1:8000/", nil)
c.Assert(err, checker.IsNil)
req.Host = "test.consul.localhost"
resp, err := client.Do(req)
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 404)
}