Kijan pou m mete yon app Node.js sou yon VPS ak yon domèn ak HTTPS?

Question

Mwen achte yon VPS Ubuntu ak yon domèn `.ht`. App Node mwen an kouri sou pò 3000. Kijan pou moun ka ale sou `https://app-mwen.ht`?

Accepted Answer

**1. DNS**: nan panèl domèn nan, kreye yon anrejistreman `A` ki pwente `app-mwen.ht` sou IP VPS la.

**2. Kenbe app la vivan** ak systemd (oswa PM2):

```ini
# /etc/systemd/system/app.service
[Service]
WorkingDirectory=/opt/app
ExecStart=/usr/bin/node server.js
Restart=always
Environment=NODE_ENV=production PORT=3000
User=app
[Install]
WantedBy=multi-user.target
```
`sudo systemctl enable --now app`

**3. Reverse proxy + HTTPS otomatik ak Caddy** (pi senp pase nginx + certbot):

```
# /etc/caddy/Caddyfile
app-mwen.ht {
    reverse_proxy localhost:3000
}
```
`sudo systemctl reload caddy`. Caddy jwenn sètifika Let's Encrypt la pou kont li e li renouvle l.

**4. Firewall**: kite sèlman pò 22, 80, 443 louvri:
```bash
sudo ufw allow OpenSSH && sudo ufw allow 80,443/tcp && sudo ufw enable
```

Pò 3000 pa dwe louvri sou entènèt la: se Caddy sèlman ki pale ak app la.

1 Repons