28 lines
859 B
Go
28 lines
859 B
Go
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// Package launcher orchestrates the application lifecycle.
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//
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// A Launcher manages infrastructure components through three ordered phases:
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//
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// 1. OnInit — all components initialize in registration order
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// 2. BeforeStart hooks — dependency injection wiring runs
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// 3. OnStart — all components start in registration order
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//
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// On shutdown (OS signal or programmatic Shutdown call), OnStop is called for
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// every component in reverse registration order, ensuring dependents stop
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// before their dependencies.
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//
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// Usage:
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//
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// logger := logz.New(logz.Options{JSON: true})
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// lc := launcher.New(logger)
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//
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// lc.Append(db, cache, server)
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// lc.BeforeStart(func() error {
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// return server.RegisterRoutes(db, cache)
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// })
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//
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// if err := lc.Run(); err != nil {
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// logger.Error("launcher failed", err)
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// os.Exit(1)
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// }
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package launcher
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