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Add skeleton to initialize tso microservice
Issue Number: ref tikv#5836 Signed-off-by: Bin Shi <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // Copyright 2016 TiKV Project Authors. | ||
| // | ||
| // 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, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package server | ||
|
|
||
| import ( | ||
| "context" | ||
| "flag" | ||
| "net/http" | ||
| "os" | ||
|
|
||
| grpcprometheus "github.com/grpc-ecosystem/go-grpc-prometheus" | ||
| "github.com/pingcap/errors" | ||
| "github.com/pingcap/log" | ||
| basicsvr "github.com/tikv/pd/pkg/basic_server" | ||
| "github.com/tikv/pd/pkg/errs" | ||
| "github.com/tikv/pd/pkg/utils/logutil" | ||
| "github.com/tikv/pd/pkg/utils/metricutil" | ||
| "go.etcd.io/etcd/clientv3" | ||
| ) | ||
|
|
||
| // if server doesn't implement all methods of basicsvr.Server, this line will result in | ||
| // clear error message "*MyTServerype does not implement basicsvr.Server (missing Method method)" | ||
| var _ basicsvr.Server = (*Server)(nil) | ||
|
|
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| // Server is the TSO server. It implements basicsvr.Server | ||
| // nolint | ||
| type Server struct { | ||
| ctx context.Context | ||
| } | ||
|
|
||
| // TODO: Implement the following methos | ||
|
|
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| // Name returns the unique etcd Name for this server in etcd cluster. | ||
| func (s *Server) Name() string { | ||
| return "" | ||
| } | ||
|
|
||
| // Context returns the context of server. | ||
| func (s *Server) Context() context.Context { | ||
| return s.ctx | ||
| } | ||
|
|
||
| // Run runs the pd server. | ||
| func (s *Server) Run() error { | ||
| return nil | ||
| } | ||
|
|
||
| // Close closes the server. | ||
| func (s *Server) Close() { | ||
| } | ||
|
|
||
| // IsClosed checks whether server is closed or not. | ||
| func (s *Server) IsClosed() bool { | ||
| return true | ||
| } | ||
|
|
||
| // GetClient returns builtin etcd client. | ||
| func (s *Server) GetClient() *clientv3.Client { | ||
| return nil | ||
| } | ||
|
|
||
| // GetHTTPClient returns builtin etcd client. | ||
| func (s *Server) GetHTTPClient() *http.Client { | ||
| return nil | ||
| } | ||
|
|
||
| func CreateServerWrapper(args []string) (context.Context, context.CancelFunc, basicsvr.Server) { | ||
| cfg := NewConfig() | ||
| err := cfg.Parse(os.Args[1:]) | ||
|
|
||
| if cfg.Version { | ||
| printVersionInfo() | ||
| exit(0) | ||
| } | ||
|
|
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| defer logutil.LogPanic() | ||
|
|
||
| switch errors.Cause(err) { | ||
| case nil: | ||
| case flag.ErrHelp: | ||
| exit(0) | ||
| default: | ||
| log.Fatal("parse cmd flags error", errs.ZapError(err)) | ||
| } | ||
|
|
||
| if cfg.ConfigCheck { | ||
| printConfigCheckMsg(cfg) | ||
| exit(0) | ||
| } | ||
|
|
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| // TODO: Initialize logger | ||
|
|
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| // TODO: Make it configurable if it has big impact on performance. | ||
| grpcprometheus.EnableHandlingTimeHistogram() | ||
|
|
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| metricutil.Push(&cfg.Metric) | ||
|
|
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| // Joins the cluster | ||
| // ... | ||
|
|
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| // Creates the server | ||
| // ... | ||
|
|
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| return nil, nil, nil | ||
| } | ||
|
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| func printVersionInfo() { | ||
| } | ||
|
|
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| func printConfigCheckMsg(cfg *Config) { | ||
| } | ||
|
|
||
| func exit(code int) { | ||
| log.Sync() | ||
| os.Exit(code) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| // Copyright 2022 TiKV Project Authors. | ||
| // | ||
| // 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, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package configutil | ||
|
|
||
| import ( | ||
| "errors" | ||
|
|
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| "github.com/BurntSushi/toml" | ||
| ) | ||
|
|
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| // Utility to test if a configuration is defined. | ||
| type ConfigMetaData struct { | ||
| meta *toml.MetaData | ||
| path []string | ||
| } | ||
|
|
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| func NewConfigMetadata(meta *toml.MetaData) *ConfigMetaData { | ||
| return &ConfigMetaData{meta: meta} | ||
| } | ||
|
|
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| func (m *ConfigMetaData) IsDefined(key string) bool { | ||
| if m.meta == nil { | ||
| return false | ||
| } | ||
| keys := append([]string(nil), m.path...) | ||
| keys = append(keys, key) | ||
| return m.meta.IsDefined(keys...) | ||
| } | ||
|
|
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| func (m *ConfigMetaData) Child(path ...string) *ConfigMetaData { | ||
| newPath := append([]string(nil), m.path...) | ||
| newPath = append(newPath, path...) | ||
| return &ConfigMetaData{ | ||
| meta: m.meta, | ||
| path: newPath, | ||
| } | ||
| } | ||
|
|
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| func (m *ConfigMetaData) CheckUndecoded() error { | ||
| if m.meta == nil { | ||
| return nil | ||
| } | ||
| undecoded := m.meta.Undecoded() | ||
| if len(undecoded) == 0 { | ||
| return nil | ||
| } | ||
| errInfo := "Config contains undefined item: " | ||
| for _, key := range undecoded { | ||
| errInfo += key.String() + ", " | ||
| } | ||
| return errors.New(errInfo[:len(errInfo)-2]) | ||
| } |
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