52 lines
982 B
Go
52 lines
982 B
Go
package main
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import (
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"context"
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"log/slog"
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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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)
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func main() {
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logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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slog.SetDefault(logger)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// Handle OS signals
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go func() {
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sigChan := make(chan os.Signal, 1)
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signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
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<-sigChan
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slog.Info("Received shutdown signal")
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cancel()
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}()
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if err := run(ctx); err != nil {
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slog.Error("Application error", "error", err)
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os.Exit(1)
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}
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}
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func run(ctx context.Context) error {
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slog.Info("Starting application...")
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// Simulate long running process or server start
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// e.g. server.ListenAndServe()
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<-ctx.Done()
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slog.Info("Shutting down application...")
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// Cleanup with timeout
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_, shutdownCancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer shutdownCancel()
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// Pretend to cleanup
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time.Sleep(100 * time.Millisecond)
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return nil
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}
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