# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

## Project Overview

Cloud Apache Container (CAC) is a Docker-based PHP web hosting environment that supports multiple PHP versions (7.4 through 8.4) with Apache, designed for both local development and production deployment.

## Common Development Commands

### Local Development Setup
```bash
# Quick start with automated setup (creates helper scripts)
./local-dev.sh -n local-dev

# With specific PHP version
./local-dev.sh -n myproject -a 84  # PHP 8.4

# Helper scripts created by local-dev.sh:
./instance_start    # Start container
./instance_stop     # Stop container
./instance_logs     # Tail Apache logs
./instance_db_info  # Show MySQL credentials
```

### Building and Testing
```bash
# Build container locally
docker build -t cac:latest .

# Build with specific PHP version
docker build --build-arg PHP_VER=83 -t cac:php83 .

# Run container manually
docker run -d -p 80:80 -p 443:443 \
  -e PHPVER=83 -e environment=DEV \
  -e uid=$(id -u) -e user=$(whoami) -e domain=localhost \
  -v"$(pwd)/user":/home/$(whoami) \
  --name test-container cac:latest
```

### Server Deployment
- Production git directory: `/root/whp`
- After `git pull`, sync web files: `rsync -av web-files/ /docker/whp/web/`

## Architecture and Key Components

### Directory Structure
- `/scripts/` - Container setup scripts (entrypoint, PHP installers, vhost creation)
- `/config/` - Apache and PHP configuration files
- `/web-files/` - Default web content (ping endpoint)
- `/.gitea/workflows/` - CI/CD pipeline for multi-PHP version builds

### Container Behavior
1. **Entrypoint Flow** (`scripts/entrypoint.sh`):
   - Creates user with specified UID
   - Sets up directory structure
   - Configures Apache vhost based on environment variables
   - In DEV mode: starts MariaDB and Memcached
   - Starts Apache and PHP-FPM

2. **Environment Modes**:
   - **DEV** (`environment=DEV`): Local database, memcached, automatic backups
   - **PROD** (default): Expects external database/cache services

3. **PHP Version Management**:
   - Controlled via `PHPVER` environment variable (74, 80, 81, 82, 83, 84)
   - Each version has dedicated install script in `/scripts/`
   - PHP-FPM configuration dynamically created based on version

### Key Environment Variables
- `uid` (required): User ID for file permissions
- `user` (required): Username for container user
- `domain` (required): Primary domain for Apache vhost
- `serveralias`: Additional domains (comma-separated)
- `PHPVER`: PHP version to use (default: 83)
- `environment`: DEV or PROD mode

## Important Technical Details

1. **Health Check**: Available at `/ping` endpoint
2. **Logs Location**: `/home/$user/logs/apache/` and `/home/$user/logs/php-fpm/`
3. **Database Backups** (DEV mode): Every 15 minutes to `/home/$user/_db_backups/`
4. **Log Rotation**: Compress after 3 days, delete after 7 days
5. **SSL**: Self-signed certificate auto-generated, proper SSL configured
6. **WordPress**: WP-CLI pre-installed for WordPress development