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refactor(): update client-map's controlling access
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| // Copyright 2021 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 profiling | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/pingcap/tidb-dashboard/pkg/apiserver/model" | ||
| "github.com/pingcap/tidb-dashboard/pkg/apiserver/profiling/fetcher" | ||
| "github.com/pingcap/tidb-dashboard/pkg/config" | ||
| "github.com/pingcap/tidb-dashboard/pkg/pd" | ||
| "github.com/pingcap/tidb-dashboard/pkg/tidb" | ||
| "github.com/pingcap/tidb-dashboard/pkg/tiflash" | ||
| "github.com/pingcap/tidb-dashboard/pkg/tikv" | ||
| ) | ||
|
|
||
| const ( | ||
| maxProfilingTimeout = time.Minute * 5 | ||
| ) | ||
|
|
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| type clientMap map[model.NodeKind]fetcher.Client | ||
|
|
||
| func (fm *clientMap) Get(kind model.NodeKind) (fetcher.Client, error) { | ||
| f, ok := (*fm)[kind] | ||
| if !ok { | ||
| return nil, fmt.Errorf("unsupported target %s", kind) | ||
| } | ||
| return f, nil | ||
| } | ||
|
|
||
| func newClientMap( | ||
| tikvHTTPClient *tikv.Client, | ||
| tiflashHTTPClient *tiflash.Client, | ||
| tidbHTTPClient *tidb.Client, | ||
| pdHTTPClient *pd.Client, | ||
| config *config.Config, | ||
| ) *clientMap { | ||
| return &clientMap{ | ||
| model.NodeKindTiKV: &tikvClient{ | ||
| client: tikvHTTPClient, | ||
| }, | ||
| model.NodeKindTiFlash: &tiflashClient{ | ||
| client: tiflashHTTPClient, | ||
| }, | ||
| model.NodeKindTiDB: &tidbClient{ | ||
| client: tidbHTTPClient, | ||
| }, | ||
| model.NodeKindPD: &pdClient{ | ||
| client: pdHTTPClient, | ||
| statusAPIHTTPScheme: config.GetClusterHTTPScheme(), | ||
| }, | ||
| } | ||
| } | ||
|
|
||
| // tikv | ||
| var _ fetcher.Client = (*tikvClient)(nil) | ||
|
|
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| type tikvClient struct { | ||
| client *tikv.Client | ||
| } | ||
|
|
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| func (f *tikvClient) Fetch(op *fetcher.ClientFetchOptions) ([]byte, error) { | ||
| return f.client.WithTimeout(maxProfilingTimeout).SendGetRequest(op.IP, op.Port, op.Path) | ||
| } | ||
|
|
||
| // tiflash | ||
| var _ fetcher.Client = (*tiflashClient)(nil) | ||
|
|
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| type tiflashClient struct { | ||
| client *tiflash.Client | ||
| } | ||
|
|
||
| func (f *tiflashClient) Fetch(op *fetcher.ClientFetchOptions) ([]byte, error) { | ||
| return f.client.WithTimeout(maxProfilingTimeout).SendGetRequest(op.IP, op.Port, op.Path) | ||
| } | ||
|
|
||
| // tidb | ||
| var _ fetcher.Client = (*tidbClient)(nil) | ||
|
|
||
| type tidbClient struct { | ||
| client *tidb.Client | ||
| } | ||
|
|
||
| func (f *tidbClient) Fetch(op *fetcher.ClientFetchOptions) ([]byte, error) { | ||
| return f.client.WithStatusAPIAddress(op.IP, op.Port).WithStatusAPITimeout(maxProfilingTimeout).SendGetRequest(op.Path) | ||
| } | ||
|
|
||
| // pd | ||
| var _ fetcher.Client = (*pdClient)(nil) | ||
|
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| type pdClient struct { | ||
| client *pd.Client | ||
| statusAPIHTTPScheme string | ||
| } | ||
|
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| func (f *pdClient) Fetch(op *fetcher.ClientFetchOptions) ([]byte, error) { | ||
| baseURL := fmt.Sprintf("%s://%s:%d", f.statusAPIHTTPScheme, op.IP, op.Port) | ||
| f.client.WithBeforeRequest(func(req *http.Request) { | ||
| req.Header.Add("PD-Allow-follower-handle", "true") | ||
| }) | ||
| return f.client.WithTimeout(maxProfilingTimeout).WithBaseURL(baseURL).SendGetRequest(op.Path) | ||
| } |
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