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🟢 WordPress Droplet: Complete Setup Guide

Step-by-step guide to set up WordPress on DigitalOcean with REST API, permalinks, and HTTPS.
คู่มือทีละขั้นตอนสำหรับติดตั้ง WordPress บน DigitalOcean พร้อม REST API, permalinks และ HTTPS

🌐 Domain Configuration การตั้งค่าโดเมน

This will automatically update all commands with your domain name.

📋 Setup Progress Checklist รายการตรวจสอบความคืบหน้า

Create DigitalOcean Droplet
Configure Domain DNS
Update Server & Access
Apache Permalink & API Setup (Critical)
Install SSL Certificate (HTTPS)
Force HTTPS Redirect
Complete WordPress Setup
Configure Permalinks
Test REST API
Generate Application Password

1. Create the Droplet 1. สร้าง Droplet

  1. Go to DigitalOcean Marketplace
  2. Search for "WordPress One-Click" install
  3. Choose your region, size, and authentication
  4. Create the droplet and note the IP address
Recommended: Choose at least 1GB RAM for WordPress. Enable backups for production sites.

2. Set Up Domain DNS 2. ตั้งค่า DNS ของโดเมน

Point your domain's A record to your droplet's IP address:

Type: A Record
Name: @ (or your subdomain)
Value: YOUR_DROPLET_IP
TTL: 3600

3. Update & Access the Server 3. อัปเดตและเข้าถึงเซิร์ฟเวอร์

SSH into your droplet as root and update the system:

sudo apt update && sudo apt upgrade -y

4. 🔴 Apache Permalink & API Setup (Critical) 4. 🔴 ตั้งค่า Apache Permalink & API (สำคัญ)

a. Create/Check .htaccess file:

sudo nano /var/www/html/.htaccess

Paste this content into the .htaccess file:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

b. Edit Apache Config to Allow .htaccess Overrides:

sudo nano /etc/apache2/sites-available/000-default.conf

Add this inside the <VirtualHost *:80> block:

<Directory /var/www/html>
    AllowOverride All
</Directory>

c. Enable mod_rewrite:

sudo a2enmod rewrite
sudo systemctl reload apache2

5. Secure Your Site with HTTPS 5. รักษาความปลอดภัยด้วย HTTPS

a. Install Certbot:

sudo apt install certbot python3-certbot-apache -y

b. Run Certbot (after DNS points to your droplet):

sudo certbot --apache -d your.domain.com
Follow the prompts: Enter your email, agree to terms. Certbot will auto-configure Apache for SSL.

6. Force HTTPS (Recommended) 6. บังคับใช้ HTTPS (แนะนำ)

Add HTTPS redirect inside <VirtualHost *:80> in /etc/apache2/sites-available/000-default.conf:

RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]

Reload Apache:

sudo systemctl reload apache2

7. Complete WordPress Setup in Browser 7. ตั้งค่า WordPress ในเบราว์เซอร์

  1. Go to https://your.domain.com
  2. Complete WordPress installation (site name, admin user, password, etc.)
  3. Save your admin credentials securely

8. Fix Permalinks in WP Admin 8. แก้ไข Permalinks ใน WP Admin

  1. Go to WP Admin → Settings → Permalinks
  2. Choose your preferred structure (recommended: Post name)
  3. Click Save Changes (this triggers .htaccess rewrite)

9. Test REST API 9. ทดสอบ REST API

Visit your REST API endpoint:

https://your.domain.com/wp-json/
Expected result: Should show JSON data, not a 404 error. If you see JSON, your REST API is working!

10. Generate Application Password (for API Access) 10. สร้าง Application Password (สำหรับ API)

  1. Go to Users → Profile in WP Admin
  2. Scroll to Application Passwords section
  3. Enter a name (e.g., "n8n Integration", "API Access")
  4. Click Add New Application Password
  5. Save the generated password - you won't see it again!

🧪 Quick Tests & Verification การทดสอบและตรวจสอบ

Test REST API with curl:

curl -X GET "https://your.domain.com/wp-json/wp/v2/posts" \
  -H "Authorization: Basic $(echo -n 'your-username:your-app-password' | base64)"

Test Permalinks:

🔧 Common Issues & Solutions ปัญหาที่พบบ่อยและวิธีแก้ไข

404 errors on REST API:

SSL Certificate issues:

WordPress not loading:

🎉 You're Done!

Your WordPress site is now ready for production use!

📚 Quick Reference ข้อมูลอ้างอิงด่วน 

WordPress Admin: https://your.domain.com/wp-admin/
REST API Base: https://your.domain.com/wp-json/
Posts API: https://your.domain.com/wp-json/wp/v2/posts
Pages API: https://your.domain.com/wp-json/wp/v2/pages
Users API: https://your.domain.com/wp-json/wp/v2/users

Apache Config: /etc/apache2/sites-available/000-default.conf
WordPress Files: /var/www/html/
Error Logs: /var/log/apache2/error.log