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traefik/integration/consul_test.go

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Go
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package integration
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"net"
"net/http"
"os"
"path/filepath"
"time"
"github.com/go-check/check"
"github.com/kvtools/consul"
"github.com/kvtools/valkeyrie"
"github.com/kvtools/valkeyrie/store"
"github.com/pmezard/go-difflib/difflib"
"github.com/traefik/traefik/v2/integration/try"
"github.com/traefik/traefik/v2/pkg/api"
checker "github.com/vdemeester/shakers"
)
// Consul test suites.
type ConsulSuite struct {
BaseSuite
kvClient store.Store
consulURL string
}
func (s *ConsulSuite) resetStore(c *check.C) {
err := s.kvClient.DeleteTree(context.Background(), "traefik")
if err != nil && !errors.Is(err, store.ErrKeyNotFound) {
c.Fatal(err)
}
}
func (s *ConsulSuite) setupStore(c *check.C) {
s.createComposeProject(c, "consul")
s.composeUp(c)
consulAddr := net.JoinHostPort(s.getComposeServiceIP(c, "consul"), "8500")
s.consulURL = fmt.Sprintf("http://%s", consulAddr)
kv, err := valkeyrie.NewStore(
context.Background(),
consul.StoreName,
[]string{consulAddr},
&consul.Config{
ConnectionTimeout: 10 * time.Second,
},
)
if err != nil {
c.Fatal("Cannot create store consul")
}
s.kvClient = kv
// wait for consul
err = try.Do(60*time.Second, try.KVExists(kv, "test"))
c.Assert(err, checker.IsNil)
}
func (s *ConsulSuite) TestSimpleConfiguration(c *check.C) {
s.setupStore(c)
file := s.adaptFile(c, "fixtures/consul/simple.toml", struct{ ConsulAddress string }{s.consulURL})
defer os.Remove(file)
data := map[string]string{
"traefik/http/routers/Router0/entryPoints/0": "web",
"traefik/http/routers/Router0/middlewares/0": "compressor",
"traefik/http/routers/Router0/middlewares/1": "striper",
"traefik/http/routers/Router0/service": "simplesvc",
"traefik/http/routers/Router0/rule": "Host(`kv1.localhost`)",
"traefik/http/routers/Router0/priority": "42",
"traefik/http/routers/Router0/tls": "",
"traefik/http/routers/Router1/rule": "Host(`kv2.localhost`)",
"traefik/http/routers/Router1/priority": "42",
"traefik/http/routers/Router1/tls/domains/0/main": "aaa.localhost",
"traefik/http/routers/Router1/tls/domains/0/sans/0": "aaa.aaa.localhost",
"traefik/http/routers/Router1/tls/domains/0/sans/1": "bbb.aaa.localhost",
"traefik/http/routers/Router1/tls/domains/1/main": "bbb.localhost",
"traefik/http/routers/Router1/tls/domains/1/sans/0": "aaa.bbb.localhost",
"traefik/http/routers/Router1/tls/domains/1/sans/1": "bbb.bbb.localhost",
"traefik/http/routers/Router1/entryPoints/0": "web",
"traefik/http/routers/Router1/service": "simplesvc",
"traefik/http/services/simplesvc/loadBalancer/servers/0/url": "http://10.0.1.1:8888",
"traefik/http/services/simplesvc/loadBalancer/servers/1/url": "http://10.0.1.1:8889",
"traefik/http/services/srvcA/loadBalancer/servers/0/url": "http://10.0.1.2:8888",
"traefik/http/services/srvcA/loadBalancer/servers/1/url": "http://10.0.1.2:8889",
"traefik/http/services/srvcB/loadBalancer/servers/0/url": "http://10.0.1.3:8888",
"traefik/http/services/srvcB/loadBalancer/servers/1/url": "http://10.0.1.3:8889",
"traefik/http/services/mirror/mirroring/service": "simplesvc",
"traefik/http/services/mirror/mirroring/mirrors/0/name": "srvcA",
"traefik/http/services/mirror/mirroring/mirrors/0/percent": "42",
"traefik/http/services/mirror/mirroring/mirrors/1/name": "srvcB",
"traefik/http/services/mirror/mirroring/mirrors/1/percent": "42",
"traefik/http/services/Service03/weighted/services/0/name": "srvcA",
"traefik/http/services/Service03/weighted/services/0/weight": "42",
"traefik/http/services/Service03/weighted/services/1/name": "srvcB",
"traefik/http/services/Service03/weighted/services/1/weight": "42",
"traefik/http/middlewares/compressor/compress": "",
"traefik/http/middlewares/striper/stripPrefix/prefixes/0": "foo",
"traefik/http/middlewares/striper/stripPrefix/prefixes/1": "bar",
"traefik/http/middlewares/striper/stripPrefix/forceSlash": "true",
}
for k, v := range data {
err := s.kvClient.Put(context.Background(), k, []byte(v), nil)
c.Assert(err, checker.IsNil)
}
cmd, display := s.traefikCmd(withConfigFile(file))
defer display(c)
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer s.killCmd(cmd)
// wait for traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 2*time.Second,
try.BodyContains(`"striper@consul":`, `"compressor@consul":`, `"srvcA@consul":`, `"srvcB@consul":`),
)
c.Assert(err, checker.IsNil)
resp, err := http.Get("http://127.0.0.1:8080/api/rawdata")
c.Assert(err, checker.IsNil)
var obtained api.RunTimeRepresentation
err = json.NewDecoder(resp.Body).Decode(&obtained)
c.Assert(err, checker.IsNil)
got, err := json.MarshalIndent(obtained, "", " ")
c.Assert(err, checker.IsNil)
expectedJSON := filepath.FromSlash("testdata/rawdata-consul.json")
if *updateExpected {
err = os.WriteFile(expectedJSON, got, 0o666)
c.Assert(err, checker.IsNil)
}
expected, err := os.ReadFile(expectedJSON)
c.Assert(err, checker.IsNil)
if !bytes.Equal(expected, got) {
diff := difflib.UnifiedDiff{
FromFile: "Expected",
A: difflib.SplitLines(string(expected)),
ToFile: "Got",
B: difflib.SplitLines(string(got)),
Context: 3,
}
text, err := difflib.GetUnifiedDiffString(diff)
c.Assert(err, checker.IsNil)
c.Error(text)
}
}
func (s *ConsulSuite) assertWhoami(c *check.C, host string, expectedStatusCode int) {
req, err := http.NewRequest(http.MethodGet, "http://127.0.0.1:8000", nil)
if err != nil {
c.Fatal(err)
}
req.Host = host
resp, err := try.ResponseUntilStatusCode(req, 15*time.Second, expectedStatusCode)
resp.Body.Close()
c.Assert(err, checker.IsNil)
}
func (s *ConsulSuite) TestDeleteRootKey(c *check.C) {
// This test case reproduce the issue: https://github.com/traefik/traefik/issues/8092
s.setupStore(c)
s.resetStore(c)
file := s.adaptFile(c, "fixtures/consul/simple.toml", struct{ ConsulAddress string }{s.consulURL})
defer os.Remove(file)
ctx := context.Background()
svcaddr := net.JoinHostPort(s.getComposeServiceIP(c, "whoami"), "80")
data := map[string]string{
"traefik/http/routers/Router0/entryPoints/0": "web",
"traefik/http/routers/Router0/rule": "Host(`kv1.localhost`)",
"traefik/http/routers/Router0/service": "simplesvc0",
"traefik/http/routers/Router1/entryPoints/0": "web",
"traefik/http/routers/Router1/rule": "Host(`kv2.localhost`)",
"traefik/http/routers/Router1/service": "simplesvc1",
"traefik/http/services/simplesvc0/loadBalancer/servers/0/url": "http://" + svcaddr,
"traefik/http/services/simplesvc1/loadBalancer/servers/0/url": "http://" + svcaddr,
}
for k, v := range data {
err := s.kvClient.Put(ctx, k, []byte(v), nil)
c.Assert(err, checker.IsNil)
}
cmd, display := s.traefikCmd(withConfigFile(file))
defer display(c)
err := cmd.Start()
c.Assert(err, checker.IsNil)
defer s.killCmd(cmd)
// wait for traefik
err = try.GetRequest("http://127.0.0.1:8080/api/rawdata", 2*time.Second,
try.BodyContains(`"Router0@consul":`, `"Router1@consul":`, `"simplesvc0@consul":`, `"simplesvc1@consul":`),
)
c.Assert(err, checker.IsNil)
s.assertWhoami(c, "kv1.localhost", http.StatusOK)
s.assertWhoami(c, "kv2.localhost", http.StatusOK)
// delete router1
err = s.kvClient.DeleteTree(ctx, "traefik/http/routers/Router1")
c.Assert(err, checker.IsNil)
s.assertWhoami(c, "kv1.localhost", http.StatusOK)
s.assertWhoami(c, "kv2.localhost", http.StatusNotFound)
// delete simple services and router0
err = s.kvClient.DeleteTree(ctx, "traefik")
c.Assert(err, checker.IsNil)
s.assertWhoami(c, "kv1.localhost", http.StatusNotFound)
s.assertWhoami(c, "kv2.localhost", http.StatusNotFound)
}
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