package main import ( "fmt" "net/http" "os/exec" "time" "github.com/containous/traefik/integration/try" "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 err = try.Do(3*time.Second, func() error { leader, err := consulClient.Status().Leader() if err != nil || len(leader) == 0 { return fmt.Errorf("Leader not found. %v", err) } return nil }) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusOK)) c.Assert(err, checker.IsNil) } 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) req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000/", nil) c.Assert(err, checker.IsNil) req.Host = "test.consul.localhost" err = try.Request(req, 5*time.Second, try.StatusCodeIs(http.StatusNotFound)) c.Assert(err, checker.IsNil) }