Blogging CMS

A lightweight, self-hosted blogging platform built with Go, HTML/CSS/JS, and MariaDB. Designed for digital sovereignty and easy Coolify deployment.

Features

• ✍️ Markdown Support – Write posts in Markdown with live preview
• 📝 Two Post Types – Full blog posts or quick micro-posts
• 🏷️ Tagging & Categories – Organize content flexibly
• 🔍 Full-Text Search – Quick post discovery
• 📡 RSS Feed – Auto-generated feed for subscribers
• 👤 User Management – Multiple authors with role-based access
• 💬 Comments – Moderated comment system
• 🎨 Material Design 3 – Modern, responsive UI
• 🔒 Session-Based Auth – Secure user authentication
• 📱 Mobile Responsive – Works on all devices
• 🐳 Docker Ready – One-command deployment on Coolify

Architecture

blogging-cms/
├── main.go                 # Go backend with HTTP handlers & DB
├── go.mod / go.sum         # Go dependencies
├── Dockerfile              # Multi-stage Docker build
├── docker-compose.yml      # Full stack (app + MariaDB)
├── .env.example            # Configuration template
├── README.md               # This file
├── .gitignore              # Git configuration
├── templates/              # HTML templates
│   ├── home.html          # Homepage
│   ├── post.html          # Single post view
│   ├── category.html      # Category listing
│   └── dashboard.html     # Admin dashboard
├── static/                 # Frontend assets
│   ├── css/
│   │   └── material.css   # Material Design 3 stylesheet
│   └── js/
│       └── app.js         # Frontend logic & API client
└── .github/
    └── workflows/          # CI/CD (optional)

Quick Start

Prerequisites

• Docker & Docker Compose
• Or: Go 1.21+, MariaDB 11.0+

With Docker (Recommended)

1. Clone the repository:

git clone https://github.com/kalvin0x8d0/blogging-cms.git
cd blogging-cms

2. Configure environment:

cp .env.example .env
# Edit .env with your settings
nano .env

3. Start the stack:

docker-compose up -d

4. Access the application:

• Homepage: http://localhost:8080
• Dashboard: http://localhost:8080/dashboard

Without Docker

1. Install dependencies:

go mod download

2. Configure MariaDB:

# Create database and user
mysql -u root -p
CREATE DATABASE blogging_cms;
CREATE USER 'cms_user'@'localhost' IDENTIFIED BY 'secure_password';
GRANT ALL PRIVILEGES ON blogging_cms.* TO 'cms_user'@'localhost';
FLUSH PRIVILEGES;

3. Set environment variables:

export DB_HOST=localhost
export DB_USER=cms_user
export DB_PASSWORD=secure_password
export DB_NAME=blogging_cms
export PORT=8080
export SITE_URL=http://localhost:8080
export SESSION_KEY=generate-random-key-here

4. Run the application:

go run main.go

Deployment on Coolify

Prerequisites

• Coolify instance running
• Git repository (GitHub, GitLab, Gitea, etc.)
• Domain name (optional but recommended)

Steps

1. Create Coolify Project

   • New Project → Select "Docker Compose"

2. Connect Repository

   • Link your Git repository with the blogging-cms code
   • Point to the root directory

3. Configure Environment

   • Add environment variables from .env.example:

     DB_HOST=mariadb
     DB_USER=cms_user
     DB_PASSWORD=your_secure_password
     DB_NAME=blogging_cms
     SITE_URL=https://your-domain.com
     SESSION_KEY=generate-random-key
     

4. Deploy

   • Coolify automatically picks up docker-compose.yml
   • Sets up MariaDB and Go application
   • Configure reverse proxy (Caddy) in Coolify settings

5. Health Checks

   • Coolify monitors / endpoint for health
   • Application includes built-in healthcheck

API Reference

Authentication

POST /auth/register

{
  "username": "author",
  "email": "author@example.com",
  "password": "secure_password"
}

POST /auth/login

{
  "email": "author@example.com",
  "password": "secure_password"
}

Posts

GET /api/posts?page=1

• Get paginated list of published posts

GET /api/posts/{id}

• Get single post by ID

POST /api/posts

• Create new post (requires auth)

{
  "title": "Post Title",
  "content": "# Markdown content",
  "excerpt": "Brief summary",
  "type": "post",
  "category": "Technology",
  "tags": ["go", "blogging"],
  "published": false
}

PUT /api/posts/{id}

• Update post (requires ownership)

DELETE /api/posts/{id}

• Delete post (requires ownership)

Comments

POST /api/comments

{
  "post_id": "post-uuid",
  "content": "Comment text"
}

Search

GET /api/search?q=query

• Full-text search across posts

Feeds

GET /feed

• RSS feed of all published posts

Configuration

Environment Variables

Variable	Description	Default
DB_HOST	Database hostname	mariadb
DB_PORT	Database port	3306
DB_USER	Database user	cms_user
DB_PASSWORD	Database password	Required
DB_NAME	Database name	blogging_cms
PORT	Application port	8080
SITE_URL	Public site URL	http://localhost:8080
SESSION_KEY	Session encryption key	dev-session-key

Development

Local Development

# Install Go
brew install go  # macOS
# or download from golang.org

# Clone repository
git clone <repo-url>
cd blogging-cms

# Install dependencies
go mod tidy

# Start MariaDB (Docker)
docker run -d \
  -e MYSQL_ROOT_PASSWORD=root \
  -e MYSQL_DATABASE=blogging_cms \
  -p 3306:3306 \
  mariadb:11.0

# Run application
go run main.go

Building Docker Image

docker build -t blogging-cms:latest .

Testing

# Unit tests (not yet implemented)
go test ./...

# Integration tests with docker-compose
docker-compose -f docker-compose.test.yml up

Markdown Syntax

Supported Markdown features:

• Headers: # H1, ## H2, etc.
• Bold: **text**
• Italic: *text*
• Code: `inline` or code blocks with triple backticks
• Lists: - item or 1. item
• Links: [text](url)
• Images: ![alt](url)
• Blockquotes: > quote

Security Considerations

• Passwords are hashed (consider using bcrypt in production)
• Session tokens are encrypted
• CSRF protection via sessions
• SQL injection protection via prepared statements
• XSS protection via template escaping
• Comments are moderated before publication

Hardening for Production

1. Use HTTPS – Configure in reverse proxy (Caddy)
2. Change SESSION_KEY – Generate secure random key
3. Use strong DB password – At least 32 characters
4. Enable backups – MariaDB volume backups
5. Rate limiting – Add reverse proxy rules
6. Content Security Policy – Configure in Dockerfile

Performance

• Lightweight Go binary (~10MB)
• Efficient MariaDB queries with indexing
• Static asset caching
• Lazy-loaded comments
• Paginated post listings

Troubleshooting

Database Connection Error

Error: dial tcp mariadb:3306: connect: connection refused

Solution: Ensure MariaDB container is running and healthy

docker-compose logs mariadb

Posts Not Displaying

• Check published=true in database
• Verify database query with: mysql -h mariadb -u cms_user -p

Static Files 404

• Ensure static/ and templates/ directories exist
• Check file permissions: ls -la static/

Contributing

1. Fork the repository
2. Create feature branch: git checkout -b feature/name
3. Commit changes: git commit -m "Add feature"
4. Push: git push origin feature/name
5. Create Pull Request

License

MIT License. See LICENSE file for details.

Acknowledgments

• Material Design 3 guidelines
• Go standard library
• Gorilla toolkit
• Docker community

Author

Kalvin – Civic technologist and digital sovereignty advocate.

• GitHub: @kalvin0x8d0
• Fediverse: @kalvin@social.obulou.org
• Personal site: obulou.org

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Remember: This is your space. Own your content. Self-host with care. ✍️