# Deployment & Produksi (Ruby on Rails)

> Capistrano, Docker, Heroku, AWS, database.yml, credentials.yml.enc, precompile assets, deployment tanpa downtime

- 20 pertanyaan wawancara
- Senior
- [Pertanyaan Wawancara: Ruby on Rails](https://sharpskill.dev/id/technologies/ruby-on-rails/pertanyaan-wawancara.md)

## 1. Perintah mana yang harus digunakan untuk precompile assets Rails sebelum deployment ke produksi?

**Jawaban**

Perintah rails assets:precompile mengompilasi semua assets (JavaScript, CSS, gambar) menjadi file teroptimasi dengan fingerprinting untuk cache busting. Langkah ini penting sebelum deployment ke produksi apa pun untuk memastikan assets siap disajikan secara efisien. Variabel RAILS_ENV=production memastikan kompilasi menggunakan pengaturan produksi.

## 2. Di file mana Rails 7+ menyimpan credentials terenkripsi untuk produksi?

**Jawaban**

Rails 7+ menggunakan config/credentials.yml.enc untuk menyimpan secrets secara terenkripsi. File ini dapat di-commit ke repository karena dienkripsi dengan master key. Untuk environment tertentu, Rails juga mendukung config/credentials/production.yml.enc dengan decryption key-nya sendiri.

## 3. Apa peran utama Capistrano dalam alur kerja deployment Rails?

**Jawaban**

Capistrano adalah alat otomatisasi deployment yang menjalankan perintah di server remote melalui SSH. Alat ini mengelola release dengan sistem symlink yang memungkinkan rollback instan, menjalankan migration, melakukan precompile asset, dan me-restart server aplikasi. Pendekatan berbasis release berversi membuat pengelolaan deployment menjadi lebih mudah.

## 17 pertanyaan lagi tersedia

- Bagaimana cara mengakses credential yang tersimpan di credentials.yml.enc dari kode Rails?
- Konfigurasi mana di database.yml yang memungkinkan pengelolaan beberapa read replica untuk produksi?

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