Секреты и 12-factor: env vs vault
12-factor config, env в dev, vault в prod, rotation, admin UI для интеграций.
Zero-downtime деплой: blue-green и rolling
Rolling update, blue-green, health checks, graceful shutdown.
Observability: логи, метрики, алерты
Structured logs, RED/USE metrics, alerting, on-call basics.
CI/CD для стартапа: GitLab CI и GitHub Actions
Lint, test, build, deploy staging/prod, secrets, rollback.
Docker Compose: dev-окружение «как на проде»
Сервисы, volumes, env, hot-reload и паритет dev/prod.
