# WordPress Operations Guide

This document provides WordPress-specific operations, configurations, and troubleshooting for WordPress sites running in Docker behind Traefik on systems-prod-01.

## Docker Configuration Best Practices

### MariaDB Version Selection
- **Use MariaDB 10.11** for compatibility with existing WordPress databases
- **Avoid MariaDB 10.7** - may cause redo log format errors during restoration
- MariaDB 10.11 is the recommended LTS version for WordPress

### SSL/HTTPS Behind Traefik
- **Real Simple SSL plugin NOT needed** when behind Traefik
- Disable Real Simple SSL to avoid redirect loops
- Traefik handles all SSL termination automatically
- Add proxy detection configuration to `wp-config.php` (see below)

### Proxy Detection Configuration

Add this to your `wp-config.php` before the "That's all, stop editing!" line:

```php
// Proxy SSL detection for Traefik
if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] === 'https') {
    $_SERVER['HTTPS'] = 'on';
}
```

## Using WP-CLI in Docker

### Installing WP-CLI
If WP-CLI is not present in your WordPress container:

```bash
docker exec CONTAINER_NAME bash -c 'curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar && chmod +x wp-cli.phar && mv wp-cli.phar /usr/local/bin/wp'
```

### Common WP-CLI Commands

**List plugins:**
```bash
docker exec CONTAINER_NAME wp --allow-root plugin list
```

**Deactivate a plugin:**
```bash
docker exec CONTAINER_NAME wp --allow-root plugin deactivate PLUGIN_NAME

# Example: Disable Real Simple SSL
docker exec CONTAINER_NAME wp --allow-root plugin deactivate really-simple-ssl
```

**Update WordPress core:**
```bash
docker exec CONTAINER_NAME wp --allow-root core update
```

**Check WordPress version:**
```bash
docker exec CONTAINER_NAME wp --allow-root core version
```

## Database Operations

### Quick WordPress URL Change

When switching between temporary and production domains:

```bash
# Generic command (change to production domain)
ssh jared@15.204.247.153 "docker exec CONTAINER_DB mysql -u DB_USER -pDB_PASS -e \"
USE DATABASE_NAME;
UPDATE wp_options SET option_value = 'https://domain.com' WHERE option_name IN ('siteurl', 'home');
\""

# Verify the change
ssh jared@15.204.247.153 "docker exec CONTAINER_DB mysql -u DB_USER -pDB_PASS -e \"
USE DATABASE_NAME;
SELECT option_name, option_value FROM wp_options WHERE option_name IN ('siteurl', 'home');
\""
```

**Real Example - BestSolarTech:**
```bash
# Change to production domain
ssh jared@15.204.247.153 "docker exec bestsolartech_db mysql -u wordpress -pBST_wp2024_secure -e \"
USE bst_wordpress;
UPDATE wp_vuhx_options SET option_value = 'https://bestsolartech.com' WHERE option_name IN ('siteurl', 'home');
\""

# Verify
ssh jared@15.204.247.153 "docker exec bestsolartech_db mysql -u wordpress -pBST_wp2024_secure -e \"
USE bst_wordpress;
SELECT option_name, option_value FROM wp_vuhx_options WHERE option_name IN ('siteurl', 'home');
\""
```

### Database Access with Skip Grant Tables

If you need to reset database passwords or access without credentials:

```bash
# Stop the current database container
docker stop SERVICE_db

# Start temporary database with skip-grant-tables
docker run -d --name temp_db \
  -v ~/services/SERVICE/db_data:/var/lib/mysql \
  mariadb:10.11 --skip-grant-tables

# Access the database (no password needed)
docker exec -it temp_db mysql

# After making changes, stop temp container and restart normal one
docker stop temp_db && docker rm temp_db
docker start SERVICE_db
```

### Database Backup

```bash
# Backup WordPress database
docker exec CONTAINER_DB mysqldump -u DB_USER -pDB_PASS DATABASE_NAME > backup.sql

# Example: Backup BestSolarTech
docker exec bestsolartech_db mysqldump -u wordpress -pBST_wp2024_secure bst_wordpress > bestsolartech-backup.sql
```

### Database Restore

```bash
# Restore from backup
cat backup.sql | docker exec -i CONTAINER_DB mysql -u DB_USER -pDB_PASS DATABASE_NAME

# Example: Restore BestSolarTech
cat bestsolartech-backup.sql | docker exec -i bestsolartech_db mysql -u wordpress -pBST_wp2024_secure bst_wordpress
```

## Troubleshooting

### Redirect Loops
**Symptom:** Browser shows "too many redirects" error
**Cause:** Real Simple SSL plugin conflicting with Traefik SSL termination
**Solution:** Disable Real Simple SSL plugin using WP-CLI (see above)

### Database Connection Errors
**Symptom:** "Error establishing database connection"
**Cause:** Database container not ready or wrong credentials
**Solution:**
1. Check database container is running: `docker ps | grep db`
2. Check database logs: `docker logs CONTAINER_DB`
3. Verify credentials in `wp-config.php` match `docker-compose.yml`

### Mixed Content Warnings
**Symptom:** HTTPS page loading HTTP resources
**Cause:** Missing proxy detection in `wp-config.php`
**Solution:** Add proxy detection code (see above)

## Migration Checklist

When migrating a WordPress site to systems-prod-01:

- [ ] Backup WordPress files and database from source
- [ ] Create service directory: `~/services/SITE_NAME`
- [ ] Create `docker-compose.yml` with MariaDB 10.11
- [ ] Add proxy detection code to `wp-config.php`
- [ ] Deploy containers with temporary domain
- [ ] Test HTTPS on temporary domain
- [ ] Disable Real Simple SSL plugin if present
- [ ] Update site URLs in database for production domain
- [ ] Test all functionality (admin panel, forms, etc.)
- [ ] Update DNS for production cutover
- [ ] Monitor for 24 hours after migration

## WordPress-Specific Docker Compose Template

```yaml
services:
  wordpress:
    image: wordpress:6.7-apache
    restart: unless-stopped
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: ${DB_PASSWORD}
    volumes:
      - ./wordpress_data:/var/www/html
    networks:
      - traefik
      - internal
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.SITE.rule=Host(`domain.com`) || Host(`www.domain.com`)"
      - "traefik.http.routers.SITE.entrypoints=websecure"
      - "traefik.http.routers.SITE.tls.certresolver=letsencrypt"

  db:
    image: mariadb:10.11
    restart: unless-stopped
    environment:
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: ${DB_PASSWORD}
      MYSQL_RANDOM_ROOT_PASSWORD: '1'
    volumes:
      - ./db_data:/var/lib/mysql
    networks:
      - internal
    healthcheck:
      test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"]
      interval: 30s
      timeout: 10s
      retries: 5

networks:
  traefik:
    external: true
  internal:
    external: true
```

## See Also

- [Configuration Reference](./configuration-reference.md) - Docker Compose templates
- [Services Inventory](./services-inventory.md) - Current WordPress sites
- [CLAUDE.md](../CLAUDE.md) - General server operations