SSL & Domains

# Install certbot
sudo apt install certbot python3-certbot-nginx

# Obtain certificate
sudo certbot --nginx -d api.yourdomain.com -d app.yourdomain.com

# Auto-renew (cron)
sudo certbot renew --dry-run

server {
    listen 443 ssl http2;
    server_name api.yourdomain.com;

    ssl_certificate /etc/letsencrypt/live/api.yourdomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.yourdomain.com/privkey.pem;

    location / {
        proxy_pass http://localhost:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

server {
    listen 443 ssl http2;
    server_name app.yourdomain.com;

    ssl_certificate /etc/letsencrypt/live/app.yourdomain.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/app.yourdomain.com/privkey.pem;

    location / {
        proxy_pass http://localhost:4200;
        proxy_set_header Host $host;
    }
}

# Redirect HTTP to HTTPS
server {
    listen 80;
    server_name api.yourdomain.com app.yourdomain.com;
    return 301 https://$host$request_uri;
}

apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
  name: letsencrypt-prod
spec:
  acme:
    server: https://acme-v02.api.letsencrypt.org/directory
    email: admin@yourdomain.com
    privateKeySecretRef:
      name: letsencrypt-prod
    solvers:
      - http01:
          ingress:
            class: nginx

# API
API_BASE_URL=https://api.yourdomain.com

# Frontend
CLIENT_BASE_URL=https://app.yourdomain.com