traefik/integration/etcd_test.go

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package integration
import (
"bytes"
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"context"
"encoding/json"
"net"
"net/http"
"os"
"path/filepath"
"testing"
"time"
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"github.com/kvtools/etcdv3"
"github.com/kvtools/valkeyrie"
"github.com/kvtools/valkeyrie/store"
"github.com/pmezard/go-difflib/difflib"
"github.com/stretchr/testify/require"
"github.com/stretchr/testify/suite"
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"github.com/traefik/traefik/v3/integration/try"
"github.com/traefik/traefik/v3/pkg/api"
)
// etcd test suites.
type EtcdSuite struct {
BaseSuite
kvClient store.Store
etcdAddr string
}
func TestEtcdSuite(t *testing.T) {
suite.Run(t, new(EtcdSuite))
}
func (s *EtcdSuite) SetupSuite() {
s.BaseSuite.SetupSuite()
s.createComposeProject("etcd")
s.composeUp()
var err error
s.etcdAddr = net.JoinHostPort(s.getComposeServiceIP("etcd"), "2379")
s.kvClient, err = valkeyrie.NewStore(
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context.Background(),
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etcdv3.StoreName,
[]string{s.etcdAddr},
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&etcdv3.Config{
ConnectionTimeout: 10 * time.Second,
},
)
require.NoError(s.T(), err)
// wait for etcd
err = try.Do(60*time.Second, try.KVExists(s.kvClient, "test"))
require.NoError(s.T(), err)
}
func (s *EtcdSuite) TearDownSuite() {
s.BaseSuite.TearDownSuite()
}
func (s *EtcdSuite) TestSimpleConfiguration() {
file := s.adaptFile("fixtures/etcd/simple.toml", struct{ EtcdAddress string }{s.etcdAddr})
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",
}
for k, v := range data {
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err := s.kvClient.Put(context.Background(), k, []byte(v), nil)
require.NoError(s.T(), err)
}
s.traefikCmd(withConfigFile(file))
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// wait for traefik
err := try.GetRequest("http://127.0.0.1:8080/api/rawdata", 2*time.Second,
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try.BodyContains(`"striper@etcd":`, `"compressor@etcd":`, `"srvcA@etcd":`, `"srvcB@etcd":`),
)
require.NoError(s.T(), err)
resp, err := http.Get("http://127.0.0.1:8080/api/rawdata")
require.NoError(s.T(), err)
var obtained api.RunTimeRepresentation
err = json.NewDecoder(resp.Body).Decode(&obtained)
require.NoError(s.T(), err)
got, err := json.MarshalIndent(obtained, "", " ")
require.NoError(s.T(), err)
expectedJSON := filepath.FromSlash("testdata/rawdata-etcd.json")
if *updateExpected {
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err = os.WriteFile(expectedJSON, got, 0o666)
require.NoError(s.T(), err)
}
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expected, err := os.ReadFile(expectedJSON)
require.NoError(s.T(), err)
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)
require.NoError(s.T(), err, text)
}
}