traefik/integration/consul_catalog_test.go

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package main
import (
"io/ioutil"
"net/http"
"os/exec"
"time"
"github.com/hashicorp/consul/api"
docker "github.com/vdemeester/libkermit/docker"
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checker "github.com/vdemeester/shakers"
check "gopkg.in/check.v1"
)
// Consul catalog test suites
type ConsulCatalogSuite struct {
BaseSuite
consulIP string
consulClient *api.Client
project *docker.Project
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}
func (s *ConsulCatalogSuite) SetUpSuite(c *check.C) {
project, err := docker.NewProjectFromEnv()
c.Assert(err, checker.IsNil, check.Commentf("Error while creating docker project"))
s.project = project
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s.createComposeProject(c, "consul_catalog")
err = s.composeProject.Start()
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c.Assert(err, checker.IsNil, check.Commentf("Error starting project"))
consul, err := s.project.Inspect("integration-test-consul_catalog_consul_1")
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c.Assert(err, checker.IsNil, check.Commentf("Error finding consul container"))
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 *ConsulCatalogSuite) registerService(name string, address string, port int) 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,
},
},
&api.WriteOptions{},
)
return err
}
func (s *ConsulCatalogSuite) 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 *ConsulCatalogSuite) TestSimpleConfiguration(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--configFile=fixtures/consul_catalog/simple.toml")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
time.Sleep(500 * time.Millisecond)
// TODO validate : run on 80
resp, err := http.Get("http://127.0.0.1:8000/")
// Expected a 404 as we did not configure anything
c.Assert(err, checker.IsNil)
c.Assert(resp.StatusCode, checker.Equals, 404)
}
func (s *ConsulCatalogSuite) TestSingleService(c *check.C) {
cmd := exec.Command(traefikBinary, "--consulCatalog", "--consulCatalog.endpoint="+s.consulIP+":8500", "--consulCatalog.domain=consul.localhost", "--configFile=fixtures/consul_catalog/simple.toml")
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
nginx, err := s.project.Inspect("integration-test-consul_catalog_nginx_1")
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c.Assert(err, checker.IsNil, check.Commentf("Error finding nginx container"))
err = s.registerService("test", nginx.NetworkSettings.IPAddress, 80)
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)
_, err = ioutil.ReadAll(resp.Body)
c.Assert(err, checker.IsNil)
}