package integration import ( "fmt" "net/http" "os" "time" "github.com/containous/traefik/v2/integration/try" "github.com/go-check/check" "github.com/hashicorp/consul/api" checker "github.com/vdemeester/shakers" ) type ConsulCatalogSuite struct { BaseSuite consulClient *api.Client consulAgentClient *api.Client consulAddress string consulAgentAddress string } func (s *ConsulCatalogSuite) SetUpSuite(c *check.C) { s.createComposeProject(c, "consul_catalog") s.composeProject.Start(c) s.consulAddress = "http://" + s.composeProject.Container(c, "consul").NetworkSettings.IPAddress + ":8500" client, err := api.NewClient(&api.Config{ Address: s.consulAddress, }) c.Check(err, check.IsNil) s.consulClient = client // Wait for consul to elect itself leader err = s.waitToElectConsulLeader() c.Assert(err, checker.IsNil) s.consulAgentAddress = "http://" + s.composeProject.Container(c, "consul-agent").NetworkSettings.IPAddress + ":8500" clientAgent, err := api.NewClient(&api.Config{ Address: s.consulAgentAddress, }) c.Check(err, check.IsNil) s.consulAgentClient = clientAgent } func (s *ConsulCatalogSuite) waitToElectConsulLeader() error { return try.Do(15*time.Second, func() error { leader, err := s.consulClient.Status().Leader() if err != nil || len(leader) == 0 { return fmt.Errorf("leader not found. %w", err) } return nil }) } func (s *ConsulCatalogSuite) TearDownSuite(c *check.C) { // shutdown and delete compose project if s.composeProject != nil { s.composeProject.Stop(c) } } func (s *ConsulCatalogSuite) registerService(reg *api.AgentServiceRegistration, onAgent bool) error { client := s.consulClient if onAgent { client = s.consulAgentClient } return client.Agent().ServiceRegister(reg) } func (s *ConsulCatalogSuite) deregisterService(id string, onAgent bool) error { client := s.consulClient if onAgent { client = s.consulAgentClient } return client.Agent().ServiceDeregister(id) } func (s *ConsulCatalogSuite) TestWithNotExposedByDefaultAndDefaultsSettings(c *check.C) { reg1 := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{"traefik.enable=true"}, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg1, false) c.Assert(err, checker.IsNil) reg2 := &api.AgentServiceRegistration{ ID: "whoami2", Name: "whoami", Tags: []string{"traefik.enable=true"}, Port: 80, Address: s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress, } err = s.registerService(reg2, false) c.Assert(err, checker.IsNil) reg3 := &api.AgentServiceRegistration{ ID: "whoami3", Name: "whoami", Tags: []string{"traefik.enable=true"}, Port: 80, Address: s.composeProject.Container(c, "whoami3").NetworkSettings.IPAddress, } err = s.registerService(reg3, false) c.Assert(err, checker.IsNil) tempObjects := struct { ConsulAddress string }{ ConsulAddress: s.consulAddress, } file := s.adaptFile(c, "fixtures/consul_catalog/default_not_exposed.toml", tempObjects) 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() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "whoami" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami1", "Hostname: whoami2", "Hostname: whoami3")) c.Assert(err, checker.IsNil) err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 2*time.Second, try.StatusCodeIs(200), try.BodyContains( fmt.Sprintf(`"http://%s:80":"UP"`, reg1.Address), fmt.Sprintf(`"http://%s:80":"UP"`, reg2.Address), fmt.Sprintf(`"http://%s:80":"UP"`, reg3.Address), )) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami2", false) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami3", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestByLabels(c *check.C) { containerIP := s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress reg := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{ "traefik.enable=true", "traefik.http.routers.router1.rule=Path(`/whoami`)", "traefik.http.routers.router1.service=service1", "traefik.http.services.service1.loadBalancer.server.url=http://" + containerIP, }, Port: 80, Address: containerIP, } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) tempObjects := struct { ConsulAddress string }{ ConsulAddress: s.consulAddress, } file := s.adaptFile(c, "fixtures/consul_catalog/default_not_exposed.toml", tempObjects) 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() err = try.GetRequest("http://127.0.0.1:8000/whoami", 2*time.Second, try.StatusCodeIs(http.StatusOK), try.BodyContainsOr("Hostname: whoami1", "Hostname: whoami2", "Hostname: whoami3")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestSimpleConfiguration(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) reg := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{"traefik.enable=true"}, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "whoami.consul.localhost" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami1")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestRegisterServiceWithoutIP(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) reg := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{"traefik.enable=true"}, Port: 80, Address: "", } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8080/api/http/services", nil) c.Assert(err, checker.IsNil) err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("whoami@consulcatalog", "\"http://127.0.0.1:80\": \"UP\"")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestDefaultConsulService(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) reg := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) // Start traefik cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "whoami.consul.localhost" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami1")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestConsulServiceWithTCPLabels(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) // Start a container with some tags reg := &api.AgentServiceRegistration{ ID: "whoamitcp", Name: "whoamitcp", Tags: []string{ "traefik.tcp.Routers.Super.Rule=HostSNI(`my.super.host`)", "traefik.tcp.Routers.Super.tls=true", "traefik.tcp.Services.Super.Loadbalancer.server.port=8080", }, Port: 8080, Address: s.composeProject.Container(c, "whoamitcp").NetworkSettings.IPAddress, } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) // Start traefik cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 1500*time.Millisecond, try.StatusCodeIs(http.StatusOK), try.BodyContains("HostSNI(`my.super.host`)")) c.Assert(err, checker.IsNil) who, err := guessWho("127.0.0.1:8000", "my.super.host", true) c.Assert(err, checker.IsNil) c.Assert(who, checker.Contains, "whoamitcp") err = s.deregisterService("whoamitcp", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestConsulServiceWithLabels(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) // Start a container with some tags reg1 := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{ "traefik.http.Routers.Super.Rule=Host(`my.super.host`)", }, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg1, false) c.Assert(err, checker.IsNil) // Start another container by replacing a '.' by a '-' reg2 := &api.AgentServiceRegistration{ ID: "whoami2", Name: "whoami", Tags: []string{ "traefik.http.Routers.SuperHost.Rule=Host(`my-super.host`)", }, Port: 80, Address: s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress, } err = s.registerService(reg2, false) c.Assert(err, checker.IsNil) // Start traefik cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "my-super.host" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami1")) c.Assert(err, checker.IsNil) req, err = http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "my.super.host" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami2")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami2", false) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestSameServiceIDOnDifferentConsulAgent(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/default_not_exposed.toml", tempObjects) defer os.Remove(file) // Start a container with some tags tags := []string{ "traefik.enable=true", "traefik.http.Routers.Super.service=whoami", "traefik.http.Routers.Super.Rule=Host(`my.super.host`)", } reg1 := &api.AgentServiceRegistration{ ID: "whoami", Name: "whoami", Tags: tags, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg1, false) c.Assert(err, checker.IsNil) reg2 := &api.AgentServiceRegistration{ ID: "whoami", Name: "whoami", Tags: tags, Port: 80, Address: s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress, } err = s.registerService(reg2, true) c.Assert(err, checker.IsNil) // Start traefik cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "my.super.host" err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami1", "Hostname: whoami2")) c.Assert(err, checker.IsNil) req, err = http.NewRequest(http.MethodGet, "http://127.0.0.1:8080/api/rawdata", nil) c.Assert(err, checker.IsNil) err = try.Request(req, 2*time.Second, try.StatusCodeIs(200), try.BodyContainsOr(s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress)) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami2", true) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestConsulServiceWithOneMissingLabels(c *check.C) { tempObjects := struct { ConsulAddress string DefaultRule string }{ ConsulAddress: s.consulAddress, DefaultRule: "Host(`{{ normalize .Name }}.consul.localhost`)", } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) defer os.Remove(file) // Start a container with some tags reg := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: []string{ "traefik.random.value=my.super.host", }, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } err := s.registerService(reg, false) c.Assert(err, checker.IsNil) // Start traefik cmd, display := s.traefikCmd(withConfigFile(file)) defer display(c) err = cmd.Start() c.Assert(err, checker.IsNil) defer cmd.Process.Kill() req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/version", nil) c.Assert(err, checker.IsNil) req.Host = "my.super.host" // FIXME Need to wait than 500 milliseconds more (for swarm or traefik to boot up ?) // TODO validate : run on 80 // Expected a 404 as we did not configure anything err = try.Request(req, 1500*time.Millisecond, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) } func (s *ConsulCatalogSuite) TestConsulServiceWithHealthCheck(c *check.C) { tags := []string{ "traefik.enable=true", "traefik.http.routers.router1.rule=Path(`/whoami`)", "traefik.http.routers.router1.service=service1", "traefik.http.services.service1.loadBalancer.server.url=http://" + s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, } reg1 := &api.AgentServiceRegistration{ ID: "whoami1", Name: "whoami", Tags: tags, Port: 80, Address: s.composeProject.Container(c, "whoami1").NetworkSettings.IPAddress, Check: &api.AgentServiceCheck{ CheckID: "some-failed-check", TCP: "127.0.0.1:1234", Name: "some-failed-check", Interval: "1s", Timeout: "1s", }, } err := s.registerService(reg1, false) c.Assert(err, checker.IsNil) tempObjects := struct { ConsulAddress string }{ ConsulAddress: s.consulAddress, } file := s.adaptFile(c, "fixtures/consul_catalog/simple.toml", tempObjects) 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() err = try.GetRequest("http://127.0.0.1:8000/whoami", 2*time.Second, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami1", false) c.Assert(err, checker.IsNil) containerIP := s.composeProject.Container(c, "whoami2").NetworkSettings.IPAddress reg2 := &api.AgentServiceRegistration{ ID: "whoami2", Name: "whoami", Tags: tags, Port: 80, Address: containerIP, Check: &api.AgentServiceCheck{ CheckID: "some-ok-check", TCP: containerIP + ":80", Name: "some-ok-check", Interval: "1s", Timeout: "1s", }, } err = s.registerService(reg2, false) c.Assert(err, checker.IsNil) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/whoami", nil) c.Assert(err, checker.IsNil) req.Host = "whoami" // FIXME Need to wait for up to 10 seconds (for consul discovery or traefik to boot up ?) err = try.Request(req, 10*time.Second, try.StatusCodeIs(200), try.BodyContainsOr("Hostname: whoami2")) c.Assert(err, checker.IsNil) err = s.deregisterService("whoami2", false) c.Assert(err, checker.IsNil) }