- Reads DATABASE_URL (required), PORT (default 8080), ENV (default
development) from os.Getenv only — no third-party env loader (D-15:
.env exported by just dev, prod injects real env)
- slog.SetDefault wired before fatal-on-missing-DSN so even startup errors
emit structured output; sanitization per T-01-12 (never log DSN)
- pgxpool opened via db.NewPool; chi router mounted with ./static as the
asset root
- http.Server: ReadTimeout=15s, WriteTimeout=15s, IdleTimeout=60s
(T-01-10 slow-client mitigation)
- signal.NotifyContext (Go 1.21+) traps SIGINT/SIGTERM, propagates through
ctx; on signal: srv.Shutdown with 10s timeout, then explicit pool.Close
(Pitfall 4 — never via defer)
- No /readyz route (Phase 7 scope)
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