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*: Add initial remote-write-receive component
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,231 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/go-kit/kit/log" | ||
| "github.com/go-kit/kit/log/level" | ||
| "github.com/improbable-eng/thanos/pkg/component" | ||
| "github.com/improbable-eng/thanos/pkg/receive" | ||
| "github.com/improbable-eng/thanos/pkg/runutil" | ||
| "github.com/improbable-eng/thanos/pkg/store" | ||
| "github.com/improbable-eng/thanos/pkg/store/storepb" | ||
| "github.com/oklog/run" | ||
| opentracing "github.com/opentracing/opentracing-go" | ||
| "github.com/pkg/errors" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/common/model" | ||
| "github.com/prometheus/prometheus/storage/tsdb" | ||
| "google.golang.org/grpc" | ||
| kingpin "gopkg.in/alecthomas/kingpin.v2" | ||
| ) | ||
|
|
||
| func registerReceive(m map[string]setupFunc, app *kingpin.Application, name string) { | ||
| cmd := app.Command(name, "Accept Prometheus remote write API requests and write to local tsdb (EXPERIMENTAL, this may change drastically without notice)") | ||
|
|
||
| grpcBindAddr, cert, key, clientCA := regGRPCFlags(cmd) | ||
| httpMetricsBindAddr := regHTTPAddrFlag(cmd) | ||
|
|
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| remoteWriteAddress := cmd.Flag("remote-write.address", "Address to listen on for remote write requests."). | ||
| Default("0.0.0.0:19291").String() | ||
|
|
||
| dataDir := cmd.Flag("tsdb.path", "Data directory of TSDB."). | ||
| Default("./data").String() | ||
|
|
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| m[name] = func(g *run.Group, logger log.Logger, reg *prometheus.Registry, tracer opentracing.Tracer, _ bool) error { | ||
| return runReceive( | ||
| g, | ||
| logger, | ||
| reg, | ||
| tracer, | ||
| *grpcBindAddr, | ||
| *cert, | ||
| *key, | ||
| *clientCA, | ||
| *httpMetricsBindAddr, | ||
| *remoteWriteAddress, | ||
| *dataDir, | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| func runReceive( | ||
| g *run.Group, | ||
| logger log.Logger, | ||
| reg *prometheus.Registry, | ||
| tracer opentracing.Tracer, | ||
| grpcBindAddr string, | ||
| cert string, | ||
| key string, | ||
| clientCA string, | ||
| httpMetricsBindAddr string, | ||
| remoteWriteAddress string, | ||
| dataDir string, | ||
| ) error { | ||
| logger = log.With(logger, "component", "receive") | ||
| level.Warn(logger).Log("msg", "setting up receive; the Thanos receive component is EXPERIMENTAL, it may break significantly without notice") | ||
|
|
||
| tsdbCfg := &tsdb.Options{ | ||
| Retention: model.Duration(time.Hour * 24 * 15), | ||
| NoLockfile: true, | ||
| MinBlockDuration: model.Duration(time.Hour * 2), | ||
| MaxBlockDuration: model.Duration(time.Hour * 2), | ||
| } | ||
|
|
||
| localStorage := &tsdb.ReadyStorage{} | ||
| receiver := receive.NewWriter(log.With(logger, "component", "receive-writer"), localStorage) | ||
| webHandler := receive.NewHandler(log.With(logger, "component", "receive-handler"), &receive.Options{ | ||
| Receiver: receiver, | ||
| ListenAddress: remoteWriteAddress, | ||
| Registry: reg, | ||
| ReadyStorage: localStorage, | ||
| }) | ||
|
|
||
| // Start all components while we wait for TSDB to open but only load | ||
| // initial config and mark ourselves as ready after it completed. | ||
| dbOpen := make(chan struct{}) | ||
|
|
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| // sync.Once is used to make sure we can close the channel at different execution stages(SIGTERM or when the config is loaded). | ||
| type closeOnce struct { | ||
| C chan struct{} | ||
| once sync.Once | ||
| Close func() | ||
| } | ||
| // Wait until the server is ready to handle reloading. | ||
| reloadReady := &closeOnce{ | ||
| C: make(chan struct{}), | ||
| } | ||
| reloadReady.Close = func() { | ||
| reloadReady.once.Do(func() { | ||
| close(reloadReady.C) | ||
| }) | ||
| } | ||
|
|
||
| level.Debug(logger).Log("msg", "setting up endpoint readiness") | ||
| { | ||
| // Initial configuration loading. | ||
| cancel := make(chan struct{}) | ||
| g.Add( | ||
| func() error { | ||
| select { | ||
| case <-dbOpen: | ||
| break | ||
| case <-cancel: | ||
| reloadReady.Close() | ||
| return nil | ||
| } | ||
|
|
||
| reloadReady.Close() | ||
|
|
||
| webHandler.Ready() | ||
| level.Info(logger).Log("msg", "server is ready to receive web requests.") | ||
| <-cancel | ||
| return nil | ||
| }, | ||
| func(err error) { | ||
| close(cancel) | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| level.Debug(logger).Log("msg", "setting up tsdb") | ||
| { | ||
| // TSDB. | ||
| cancel := make(chan struct{}) | ||
| g.Add( | ||
| func() error { | ||
| level.Info(logger).Log("msg", "starting TSDB ...") | ||
| db, err := tsdb.Open( | ||
| dataDir, | ||
| log.With(logger, "component", "tsdb"), | ||
| reg, | ||
| tsdbCfg, | ||
| ) | ||
| if err != nil { | ||
| return fmt.Errorf("opening storage failed: %s", err) | ||
| } | ||
| level.Info(logger).Log("msg", "tsdb started") | ||
|
|
||
| startTimeMargin := int64(2 * time.Duration(tsdbCfg.MinBlockDuration).Seconds() * 1000) | ||
| localStorage.Set(db, startTimeMargin) | ||
| close(dbOpen) | ||
| <-cancel | ||
| return nil | ||
| }, | ||
| func(err error) { | ||
| if err := localStorage.Close(); err != nil { | ||
| level.Error(logger).Log("msg", "error stopping storage", "err", err) | ||
| } | ||
| close(cancel) | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| level.Debug(logger).Log("msg", "setting up metric http listen-group") | ||
| if err := metricHTTPListenGroup(g, logger, reg, httpMetricsBindAddr); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| level.Debug(logger).Log("msg", "setting up grpc server") | ||
| { | ||
| var ( | ||
| s *grpc.Server | ||
| l net.Listener | ||
| err error | ||
| ) | ||
| g.Add(func() error { | ||
| select { | ||
| case <-dbOpen: | ||
| break | ||
| } | ||
|
|
||
| l, err = net.Listen("tcp", grpcBindAddr) | ||
| if err != nil { | ||
| return errors.Wrap(err, "listen API address") | ||
| } | ||
|
|
||
| db := localStorage.Get() | ||
| tsdbStore := store.NewTSDBStore(log.With(logger, "component", "thanos-tsdb-store"), reg, db, component.Receive, nil) | ||
|
|
||
| opts, err := defaultGRPCServerOpts(logger, reg, tracer, cert, key, clientCA) | ||
| if err != nil { | ||
| return errors.Wrap(err, "setup gRPC server") | ||
| } | ||
| s = grpc.NewServer(opts...) | ||
| storepb.RegisterStoreServer(s, tsdbStore) | ||
|
|
||
| level.Info(logger).Log("msg", "listening for StoreAPI gRPC", "address", grpcBindAddr) | ||
| return errors.Wrap(s.Serve(l), "serve gRPC") | ||
| }, func(error) { | ||
| if s != nil { | ||
| s.Stop() | ||
| } | ||
| if l != nil { | ||
| runutil.CloseWithLogOnErr(logger, l, "store gRPC listener") | ||
| } | ||
| }) | ||
| } | ||
|
|
||
| level.Debug(logger).Log("msg", "setting up receive http handler") | ||
| { | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| g.Add( | ||
| func() error { | ||
| if err := webHandler.Run(ctx); err != nil { | ||
| return fmt.Errorf("error starting web server: %s", err) | ||
| } | ||
| return nil | ||
| }, | ||
| func(err error) { | ||
| cancel() | ||
| }, | ||
| ) | ||
| } | ||
| level.Info(logger).Log("msg", "starting receiver") | ||
|
|
||
| return nil | ||
| } |
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