package integration import ( "fmt" "net/http" "os" "time" "github.com/containous/traefik/v2/integration/try" "github.com/gambol99/go-marathon" "github.com/go-check/check" checker "github.com/vdemeester/shakers" ) const ( containerNameMesosSlave = "mesos-slave" containerNameMarathon = "marathon" ) // Marathon test suites (using libcompose). type MarathonSuite struct { BaseSuite marathonURL string } func (s *MarathonSuite) SetUpSuite(c *check.C) { s.createComposeProject(c, "marathon") s.composeProject.Start(c) marathonIPAddr := s.composeProject.Container(c, containerNameMarathon).NetworkSettings.IPAddress c.Assert(marathonIPAddr, checker.Not(checker.HasLen), 0) s.marathonURL = "http://" + marathonIPAddr + ":8080" // Wait for Marathon readiness prior to creating the client so that we // don't run into the "all cluster members down" state right from the // start. err := try.GetRequest(s.marathonURL+"/v2/leader", 1*time.Minute, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) // Add entry for Mesos slave container IP address in the hosts file so // that Traefik can properly forward traffic. // This is necessary as long as we are still using the docker-compose v1 // spec. Once we switch to v2 or higher, we can have both the test/builder // container and the Mesos slave container join the same custom network and // enjoy DNS-discoverable container host names. mesosSlaveIPAddr := s.composeProject.Container(c, containerNameMesosSlave).NetworkSettings.IPAddress c.Assert(mesosSlaveIPAddr, checker.Not(checker.HasLen), 0) err = s.extendDockerHostsFile(containerNameMesosSlave, mesosSlaveIPAddr) c.Assert(err, checker.IsNil) } // extendDockerHostsFile extends the hosts file (/etc/hosts) by the given // host/IP address mapping if we are running inside a container. func (s *MarathonSuite) extendDockerHostsFile(host, ipAddr string) error { const hostsFile = "/etc/hosts" // Determine if the run inside a container. The most reliable way to // do this is to inject an indicator, which we do in terms of an // environment variable. // (See also https://groups.google.com/d/topic/docker-user/JOGE7AnJ3Gw/discussion.) if os.Getenv("CONTAINER") == "DOCKER" { // We are running inside a container -- extend the hosts file. file, err := os.OpenFile(hostsFile, os.O_APPEND|os.O_WRONLY, 0o600) if err != nil { return err } defer file.Close() if _, err = file.WriteString(fmt.Sprintf("%s\t%s\n", ipAddr, host)); err != nil { return err } } return nil } func deployApplication(c *check.C, client marathon.Marathon, application *marathon.Application) { deploy, err := client.UpdateApplication(application, false) c.Assert(err, checker.IsNil) // Wait for deployment to complete. c.Assert(client.WaitOnDeployment(deploy.DeploymentID, 1*time.Minute), checker.IsNil) } func (s *MarathonSuite) TestConfigurationUpdate(c *check.C) { // Start Traefik. file := s.adaptFile(c, "fixtures/marathon/simple.toml", struct { MarathonURL string }{s.marathonURL}) defer os.Remove(file) cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err := cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() // Wait for Traefik to turn ready. err = try.GetRequest("http://127.0.0.1:8000/", 2*time.Second, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) // Prepare Marathon client. config := marathon.NewDefaultConfig() config.URL = s.marathonURL client, err := marathon.NewClient(config) c.Assert(err, checker.IsNil) // Create test application to be deployed. app := marathon.NewDockerApplication(). Name("/whoami"). CPU(0.1). Memory(32). AddLabel("traefik.http.Routers.rt.Rule", "PathPrefix(`/service`)") app.Container.Docker.Bridged(). Expose(80). Container("containous/whoami") // Deploy the test application. deployApplication(c, client, app) // Query application via Traefik. err = try.GetRequest("http://127.0.0.1:8000/service", 30*time.Second, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) // Create test application with services to be deployed. app = marathon.NewDockerApplication(). Name("/whoami"). CPU(0.1). Memory(32). AddLabel("traefik.http.Routers.app.Rule", "PathPrefix(`/app`)") app.Container.Docker.Bridged(). Expose(80). Container("containous/whoami") // Deploy the test application. deployApplication(c, client, app) // Query application via Traefik. err = try.GetRequest("http://127.0.0.1:8000/app", 30*time.Second, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) }