149 lines
4.0 KiB
Go
149 lines
4.0 KiB
Go
// Command worker runs background jobs for the analytics service:
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// computed-trait refresh, segment refresh, reverse-ETL pushes, webhook fan-out.
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//
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// Jobs are scheduled and dispatched via riverqueue/river backed by PostgreSQL.
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// New job kinds are registered in registerWorkers below; periodic schedules
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// are wired in periodicJobs.
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package main
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import (
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"context"
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"encoding/json"
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"errors"
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"log"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/go-chi/chi/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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"github.com/riverqueue/river"
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"github.com/riverqueue/river/riverdriver/riverpgxv5"
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"go.uber.org/zap"
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"github.com/dbiz/cdp/data-layer/workers/internal/config"
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)
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func main() {
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if err := run(); err != nil {
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log.Fatal(err)
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}
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}
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func run() error {
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cfg, err := config.Load()
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if err != nil {
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return err
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}
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logger, err := newLogger(cfg.LogLevel)
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if err != nil {
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return err
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}
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defer func() { _ = logger.Sync() }()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// ---- Postgres pool ----------------------------------------------------
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pool, err := pgxpool.New(ctx, cfg.PostgresDSN)
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if err != nil {
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return err
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}
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defer pool.Close()
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// ---- river client -----------------------------------------------------
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workers := river.NewWorkers()
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registerWorkers(workers, logger)
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client, err := river.NewClient(riverpgxv5.New(pool), &river.Config{
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Queues: map[string]river.QueueConfig{
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river.QueueDefault: {MaxWorkers: cfg.MaxWorkers},
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},
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Workers: workers,
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PeriodicJobs: periodicJobs(cfg),
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Logger: newSlogAdapter(logger),
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})
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if err != nil {
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return err
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}
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if err := client.Start(ctx); err != nil {
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return err
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}
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// ---- HTTP (health) ----------------------------------------------------
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r := chi.NewRouter()
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r.Get("/health", func(w http.ResponseWriter, _ *http.Request) {
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writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
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})
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r.Get("/ready", func(w http.ResponseWriter, _ *http.Request) {
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writeJSON(w, http.StatusOK, map[string]string{"status": "ready"})
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})
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srv := &http.Server{
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Addr: cfg.HTTPAddr,
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Handler: r,
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ReadHeaderTimeout: 5 * time.Second,
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}
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httpErr := make(chan error, 1)
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go func() {
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logger.Info("worker http listening", zap.String("addr", cfg.HTTPAddr))
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if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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httpErr <- err
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}
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}()
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// ---- Signals ----------------------------------------------------------
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sigCh := make(chan os.Signal, 1)
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signal.Notify(sigCh, syscall.SIGINT, syscall.SIGTERM)
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select {
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case <-sigCh:
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logger.Info("shutdown signal received")
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case err := <-httpErr:
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logger.Error("http stopped unexpectedly", zap.Error(err))
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}
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shutCtx, shutCancel := context.WithTimeout(context.Background(), cfg.ShutdownTimeout)
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defer shutCancel()
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_ = srv.Shutdown(shutCtx)
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if err := client.Stop(shutCtx); err != nil {
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logger.Error("river client stop", zap.Error(err))
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}
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return nil
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}
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// registerWorkers adds job workers to the registry. Each new job kind
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// (ComputeTraits, RefreshSegment, ReverseETL, ...) calls river.AddWorker here.
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func registerWorkers(_ *river.Workers, _ *zap.Logger) {
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// e.g. river.AddWorker(workers, &job.ComputeTraitsWorker{Repo: traitsRepo, Log: logger})
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}
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// periodicJobs returns the recurring schedules driven by river's built-in
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// scheduler. Idempotent jobs only — river may retry on failure.
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func periodicJobs(_ *config.Config) []*river.PeriodicJob {
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// Real schedules land here once the corresponding workers are wired up.
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// See CLAUDE_analytics.md → Job Queue (river).
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return nil
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}
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func writeJSON(w http.ResponseWriter, status int, body any) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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_ = json.NewEncoder(w).Encode(body)
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}
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func newLogger(level string) (*zap.Logger, error) {
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lvl, err := zap.ParseAtomicLevel(level)
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if err != nil {
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lvl = zap.NewAtomicLevelAt(zap.InfoLevel)
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}
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cfg := zap.NewProductionConfig()
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cfg.Level = lvl
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cfg.EncoderConfig.TimeKey = "ts"
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cfg.EncoderConfig.MessageKey = "msg"
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return cfg.Build()
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}
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