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Merge pull request #7187 from tinyspeck/am_vtadmin_cluster
Initial vtadmin-api, clusters, and service discovery
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| /* | ||
| Copyright 2020 The Vitess 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 main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "os" | ||
| "time" | ||
|
|
||
| "github.com/spf13/cobra" | ||
| "vitess.io/vitess/go/vt/log" | ||
| "vitess.io/vitess/go/vt/vtadmin" | ||
| "vitess.io/vitess/go/vt/vtadmin/cluster" | ||
| "vitess.io/vitess/go/vt/vtadmin/grpcserver" | ||
| vtadminhttp "vitess.io/vitess/go/vt/vtadmin/http" | ||
| ) | ||
|
|
||
| var ( | ||
| opts grpcserver.Options | ||
| httpOpts vtadminhttp.Options | ||
| clusterConfigs cluster.ClustersFlag | ||
| clusterFileConfig cluster.FileConfig | ||
| defaultClusterConfig cluster.Config | ||
|
|
||
| rootCmd = &cobra.Command{ | ||
| Use: "vtadmin", | ||
| PreRun: func(cmd *cobra.Command, args []string) { | ||
| tmp := os.Args | ||
| os.Args = os.Args[0:1] | ||
| flag.Parse() | ||
| os.Args = tmp | ||
| // (TODO:@amason) Check opts.EnableTracing and trace boot time. | ||
| }, | ||
| Run: run, | ||
| } | ||
| ) | ||
|
|
||
| func run(cmd *cobra.Command, args []string) { | ||
| configs := clusterFileConfig.Combine(defaultClusterConfig, clusterConfigs) | ||
| clusters := make([]*cluster.Cluster, len(configs)) | ||
|
|
||
| if len(configs) == 0 { | ||
| log.Fatal("must specify at least one cluster") | ||
| } | ||
|
|
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| for i, cfg := range configs { | ||
| cluster, err := cfg.Cluster() | ||
| if err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
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| clusters[i] = cluster | ||
| } | ||
|
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| s := vtadmin.NewAPI(clusters, opts, httpOpts) | ||
| if err := s.ListenAndServe(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
| } | ||
|
|
||
| func main() { | ||
| rootCmd.Flags().StringVar(&opts.Addr, "addr", ":15000", "address to serve on") | ||
| rootCmd.Flags().DurationVar(&opts.CMuxReadTimeout, "lmux-read-timeout", time.Second, "how long to spend connection muxing") | ||
| rootCmd.Flags().DurationVar(&opts.LameDuckDuration, "lame-duck-duration", time.Second*5, "length of lame duck period at shutdown") | ||
| rootCmd.Flags().Var(&clusterConfigs, "cluster", "per-cluster configuration. any values here take precedence over those in -cluster-defaults or -cluster-config") | ||
| rootCmd.Flags().Var(&clusterFileConfig, "cluster-config", "path to a yaml cluster configuration. see clusters.example.yaml") // (TODO:@amason) provide example config. | ||
| rootCmd.Flags().Var(&defaultClusterConfig, "cluster-defaults", "default options for all clusters") | ||
|
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| rootCmd.Flags().BoolVar(&opts.EnableTracing, "grpc-tracing", false, "whether to enable tracing on the gRPC server") | ||
| rootCmd.Flags().BoolVar(&httpOpts.EnableTracing, "http-tracing", false, "whether to enable tracing on the HTTP server") | ||
| rootCmd.Flags().BoolVar(&httpOpts.DisableCompression, "http-no-compress", false, "whether to disable compression of HTTP API responses") | ||
| rootCmd.Flags().StringSliceVar(&httpOpts.CORSOrigins, "http-origin", []string{}, "repeated, comma-separated flag of allowed CORS origins. omit to disable CORS") | ||
|
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| // glog flags, no better way to do this | ||
| rootCmd.Flags().AddGoFlag(flag.Lookup("v")) | ||
| rootCmd.Flags().AddGoFlag(flag.Lookup("logtostderr")) | ||
| rootCmd.Flags().AddGoFlag(flag.Lookup("alsologtostderr")) | ||
| rootCmd.Flags().AddGoFlag(flag.Lookup("stderrthreshold")) | ||
| rootCmd.Flags().AddGoFlag(flag.Lookup("log_dir")) | ||
|
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| if err := rootCmd.Execute(); err != nil { | ||
| log.Fatal(err) | ||
| } | ||
|
|
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| log.Flush() | ||
| } |
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