DevOps & Infrastructure

Caddy Server

Deploy web applications with automatic HTTPS using Caddy. AI agents can generate Caddyfiles for reverse proxying, file serving, and API routing.

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Overview

Caddy is a modern web server that automatically provisions and renews TLS certificates from Let's Encrypt, eliminating one of the most tedious parts of web deployment. Its configuration language (Caddyfile) is dramatically simpler than Nginx, making it an ideal target for AI agent generation, as the agent can produce clean, readable configs with minimal boilerplate.

AI agents can scaffold complete Caddy configurations for common patterns: reverse proxying to backend services, serving static sites with SPA routing, setting up PHP-FPM, or configuring multiple domains on a single server. Caddy's built-in automatic HTTPS means the agent does not need to generate certificate-related configuration at all, reducing the surface area for misconfigurations.

Caddy is particularly well-suited for developers who want production-grade deployments without the operational complexity of Nginx plus Certbot. Your AI agent can generate a Caddyfile, validate it with `caddy validate`, and help you transition from development to production with proper headers, compression, and logging.

Who Is This For?

Developers deploying web apps with zero-config automatic HTTPS
Teams migrating from Nginx to a simpler reverse proxy setup
Solo developers running multiple sites on a single VPS
DevOps engineers setting up staging environments with valid TLS certificates

Installation

Setup for Claude Code

Install Caddy: brew install caddy (macOS) or see https://caddyserver.com/docs/install
Claude Code generates Caddyfiles and runs caddy validate

Configuration

# Caddyfile
example.com {
    reverse_proxy localhost:3000
    encode gzip
    header {
        X-Frame-Options DENY
        X-Content-Type-Options nosniff
    }
    log {
        output file /var/log/caddy/access.log
    }
}