72 lines
1.9 KiB
Go
72 lines
1.9 KiB
Go
// Command admin-dashboard is a stateless, server-rendered web UI over
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// control-api's /api/v1/admin/* HTTP API — see docs/DASHBOARD.md. It never
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// connects to the database and holds no state of its own.
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package main
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import (
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"context"
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"flag"
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"fmt"
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"log/slog"
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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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"cloudipvalidator/internal/config"
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"cloudipvalidator/internal/dashboard"
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)
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func main() {
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configPath := flag.String("config", "configs/admin-dashboard.yaml", "path to admin-dashboard config file")
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flag.Parse()
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log := slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
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if err := run(*configPath, log); err != nil {
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log.Error("fatal", "err", err)
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os.Exit(1)
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}
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}
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func run(configPath string, log *slog.Logger) error {
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cfg, err := config.LoadAdminDashboard(configPath)
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if err != nil {
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return fmt.Errorf("load config: %w", err)
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}
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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srv, err := dashboard.New(dashboard.Config{
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ControlAPIBaseURL: cfg.ControlAPI.BaseURL,
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ControlAPITimeout: time.Duration(cfg.ControlAPI.TimeoutSeconds) * time.Second,
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LastCompletedCount: cfg.Overview.LastCompletedCount,
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OverviewPollIntervalS: cfg.Overview.PollIntervalSeconds,
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}, log)
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if err != nil {
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return fmt.Errorf("init dashboard: %w", err)
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}
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httpServer := &http.Server{Addr: cfg.Server.ListenAddr, Handler: srv.Handler()}
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errCh := make(chan error, 1)
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go func() {
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log.Info("listening", "addr", cfg.Server.ListenAddr, "control_api", cfg.ControlAPI.BaseURL)
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if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
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errCh <- err
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}
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}()
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select {
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case <-ctx.Done():
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log.Info("shutting down")
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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return httpServer.Shutdown(shutdownCtx)
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case err := <-errCh:
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return err
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}
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}
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