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Signed-off-by: Neil Shen <overvenus@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,94 @@ | ||
| // Copyright 2020 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "strings" | ||
|
|
||
| "github.com/coreos/go-semver/semver" | ||
| "github.com/pingcap/errors" | ||
| pd "github.com/pingcap/pd/v4/client" | ||
| ) | ||
|
|
||
| var minPDVersion *semver.Version = semver.New("4.0.0-rc.1") | ||
| var minTiKVVersion *semver.Version = semver.New("4.0.0-rc.1") | ||
|
|
||
| func removeV(v string) string { | ||
| if v == "" { | ||
| return v | ||
| } | ||
| return strings.TrimPrefix(v, "v") | ||
| } | ||
|
|
||
| // CheckClusterVersion check TiKV and PD version. | ||
| func CheckClusterVersion(ctx context.Context, client pd.Client, pdHTTP string) error { | ||
| stores, err := client.GetAllStores(ctx, pd.WithExcludeTombstone()) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| for _, s := range stores { | ||
| ver, err := semver.NewVersion(removeV(s.Version)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| ord := ver.Compare(*minTiKVVersion) | ||
| if ord < 0 { | ||
| return errors.NotSupportedf("TiKV %s is not supported, require minimal version %s", | ||
| removeV(s.Version), minTiKVVersion) | ||
| } | ||
| } | ||
| // See more: https://github.com/pingcap/pd/blob/v4.0.0-rc.1/server/api/version.go | ||
| pdVer := struct { | ||
| Version string `json:"version"` | ||
| }{} | ||
| req, err := http.NewRequestWithContext( | ||
| ctx, http.MethodGet, fmt.Sprintf("%s/pd/api/v1/version", pdHTTP), nil) | ||
| if err != nil { | ||
| return errors.Annotate(err, "fail to request PD") | ||
| } | ||
| resp, err := http.DefaultClient.Do(req) | ||
| if err != nil { | ||
| return errors.Annotate(err, "fail to request PD") | ||
| } | ||
| if resp.StatusCode < 200 && resp.StatusCode >= 300 { | ||
| return errors.BadRequestf("fail to requet PD %s", resp.Status) | ||
| } | ||
| content, err := ioutil.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return errors.Annotate(err, "fail to request PD") | ||
| } | ||
| err = json.Unmarshal(content, &pdVer) | ||
| if err != nil { | ||
| return errors.Annotate(err, "fail to request PD") | ||
| } | ||
| err = resp.Body.Close() | ||
| if err != nil { | ||
| return errors.Annotate(err, "fail to request PD") | ||
| } | ||
| ver, err := semver.NewVersion(removeV(pdVer.Version)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| ord := ver.Compare(*minPDVersion) | ||
| if ord < 0 { | ||
| return errors.NotSupportedf("PD %s is not supported, require minimal version %s", | ||
| removeV(pdVer.Version), minPDVersion) | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package util | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
| "net/url" | ||
| "time" | ||
|
|
||
| "github.com/coreos/go-semver/semver" | ||
| "github.com/pingcap/check" | ||
| "github.com/pingcap/kvproto/pkg/metapb" | ||
| pd "github.com/pingcap/pd/v4/client" | ||
| "github.com/pingcap/pd/v4/pkg/tempurl" | ||
| ) | ||
|
|
||
| type checkSuite struct{} | ||
|
|
||
| var _ = check.Suite(&checkSuite{}) | ||
|
|
||
| type mockPDClient struct { | ||
| pd.Client | ||
| getAllStores func() []*metapb.Store | ||
| getVersion func() string | ||
| } | ||
|
|
||
| func (m *mockPDClient) GetAllStores(ctx context.Context, opts ...pd.GetStoreOption) ([]*metapb.Store, error) { | ||
| if m.getAllStores != nil { | ||
| return m.getAllStores(), nil | ||
| } | ||
| return []*metapb.Store{}, nil | ||
| } | ||
|
|
||
| func (m *mockPDClient) ServeHTTP(resp http.ResponseWriter, _ *http.Request) { | ||
| if m.getVersion != nil { | ||
| _, _ = resp.Write([]byte(fmt.Sprintf(`{"version":"%s"}`, m.getVersion()))) | ||
| } | ||
| } | ||
|
|
||
| func (s *checkSuite) TestCheckClusterVersion(c *check.C) { | ||
| mock := mockPDClient{ | ||
| Client: nil, | ||
| } | ||
| pdURL, _ := url.Parse(tempurl.Alloc()) | ||
| pdHTTP := fmt.Sprintf("http://%s", pdURL.Host) | ||
| svr := http.Server{Addr: pdURL.Host, Handler: &mock} | ||
| go func() { | ||
| c.Assert(svr.ListenAndServe(), check.IsNil) | ||
| }() | ||
| defer svr.Close() | ||
| for i := 0; i < 20; i++ { | ||
| time.Sleep(100 * time.Millisecond) | ||
| _, err := http.Get(pdHTTP) | ||
| if err == nil { | ||
| break | ||
| } | ||
| c.Error(err) | ||
| if i == 199 { | ||
| c.Fatal("http server timeout", err) | ||
| } | ||
| } | ||
|
|
||
| { | ||
| mock.getVersion = func() string { | ||
| return minPDVersion.String() | ||
| } | ||
| mock.getAllStores = func() []*metapb.Store { | ||
| return []*metapb.Store{{Version: minTiKVVersion.String()}} | ||
| } | ||
| err := CheckClusterVersion(context.Background(), &mock, pdHTTP) | ||
| c.Assert(err, check.IsNil) | ||
| } | ||
|
|
||
| { | ||
| mock.getVersion = func() string { | ||
| return `v1.0.0-alpha-271-g824ae7fd` | ||
| } | ||
| mock.getAllStores = func() []*metapb.Store { | ||
| return []*metapb.Store{{Version: minTiKVVersion.String()}} | ||
| } | ||
| err := CheckClusterVersion(context.Background(), &mock, pdHTTP) | ||
| c.Assert(err, check.ErrorMatches, "PD .* is not supported.*") | ||
| } | ||
|
|
||
| { | ||
| mock.getVersion = func() string { | ||
| return minPDVersion.String() | ||
| } | ||
| mock.getAllStores = func() []*metapb.Store { | ||
| // TiKV does not include 'v'. | ||
| return []*metapb.Store{{Version: `1.0.0-alpha-271-g824ae7fd`}} | ||
| } | ||
| err := CheckClusterVersion(context.Background(), &mock, pdHTTP) | ||
| c.Assert(err, check.ErrorMatches, "TiKV .* is not supported.*") | ||
| } | ||
| } | ||
|
|
||
| func (s *checkSuite) TestCompareVersion(c *check.C) { | ||
| c.Assert(semver.New("4.0.0-rc").Compare(*semver.New("4.0.0-rc.2")), check.Equals, -1) | ||
| c.Assert(semver.New("4.0.0-rc.1").Compare(*semver.New("4.0.0-rc.2")), check.Equals, -1) | ||
| // BUG it should be "<" instead of ">". | ||
| // c.Assert(semver.New("4.0.0-rc-35-g31dae220").Compare(*semver.New("4.0.0-rc.2")), check.Equals, -1) | ||
| } |
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