.

README.md

@@ -22,3 +22,33 @@ $ npm start
 ```
 
 The web server will be running at `http://localhost:8000` and the email server at `smtp://localhost:2525`.
+
+# Deployment
+
+1. Create a deployment SSH key pair:
+
+   ```console
+   $ ssh-keygen
+   ```
+
+2. Add the public key (`id_rsa.pub`) to DigitalOcean and to GitHub as a **Deploy key** for the repository.
+
+3. Add the private key (`id_rsa`) to GitHub as a **Secret** called `SSH_PRIVATE_KEY`.
+
+4. Create a DigitalOcean droplet.
+
+5. Configure DNS:
+
+   | Type    | Host  | Value                     |
+   | ------- | ----- | ------------------------- |
+   | `A`     | `@`   | `<droplet-ip>`            |
+   | `CNAME` | `www` | `kill-the-newsletter.com` |
+   | `MX`    | `@`   | `kill-the-newsletter.com` |
+
+6. Setup the server:
+
+   ```console
+   $ npx pm2 deploy package.json production setup
+   ```
+
+7. Push to GitHub, which will trigger the Action that deploys the code and starts the server.