traefik/integration/docker_compose_test.go

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package integration
import (
"encoding/json"
"net/http"
"os"
"time"
"github.com/containous/traefik/api"
"github.com/containous/traefik/integration/try"
"github.com/containous/traefik/testhelpers"
"github.com/go-check/check"
checker "github.com/vdemeester/shakers"
)
const (
composeProject = "minimal"
)
// Docker test suites
type DockerComposeSuite struct {
BaseSuite
}
func (s *DockerComposeSuite) SetUpSuite(c *check.C) {
s.createComposeProject(c, composeProject)
s.composeProject.Start(c)
}
func (s *DockerComposeSuite) TearDownSuite(c *check.C) {
// shutdown and delete compose project
if s.composeProject != nil {
s.composeProject.Stop(c)
}
}
func (s *DockerComposeSuite) TestComposeScale(c *check.C) {
var serviceCount = 2
var composeService = "whoami1"
s.composeProject.Scale(c, composeService, serviceCount)
tempObjects := struct {
DockerHost string
DefaultRule string
}{
DockerHost: s.getDockerHost(),
DefaultRule: "Host:{{ normalize .Name }}.docker.localhost",
}
file := s.adaptFile(c, "fixtures/docker/minimal.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 := testhelpers.MustNewRequest(http.MethodGet, "http://127.0.0.1:8000/whoami", nil)
req.Host = "my.super.host"
_, err = try.ResponseUntilStatusCode(req, 1500*time.Millisecond, http.StatusOK)
c.Assert(err, checker.IsNil)
resp, err := http.Get("http://127.0.0.1:8080/api/providers/docker/services")
c.Assert(err, checker.IsNil)
defer resp.Body.Close()
var services []api.ServiceRepresentation
err = json.NewDecoder(resp.Body).Decode(&services)
c.Assert(err, checker.IsNil)
// check that we have only one service with n servers
c.Assert(services, checker.HasLen, 1)
c.Assert(services[0].ID, checker.Equals, composeService+"_integrationtest"+composeProject)
c.Assert(services[0].LoadBalancer.Servers, checker.HasLen, serviceCount)
resp, err = http.Get("http://127.0.0.1:8080/api/providers/docker/routers")
c.Assert(err, checker.IsNil)
defer resp.Body.Close()
var routers []api.RouterRepresentation
err = json.NewDecoder(resp.Body).Decode(&routers)
c.Assert(err, checker.IsNil)
// check that we have only one router
c.Assert(routers, checker.HasLen, 1)
}