nginx.conf.example

# Vulcan nginx configuration — SSL reverse proxy
#
# Usage:
#   cp nginx.conf.example nginx.conf
#   Edit server_name and ssl_certificate paths below, then:
#   docker compose -f docker-compose.prod.yml --profile nginx up -d
#
# For local dev with mkcert:
#   brew install mkcert && mkcert -install
#   mkdir -p config/nginx/certs
#   mkcert -cert-file config/nginx/certs/cert.pem -key-file config/nginx/certs/key.pem vulcan.localhost

upstream vulcan {
    server web:3000;
}

# Redirect HTTP to HTTPS
server {
    listen 80;
    server_name vulcan.localhost;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name vulcan.localhost;

    ssl_certificate     /etc/nginx/certs/cert.pem;
    ssl_certificate_key /etc/nginx/certs/key.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml;

    location / {
        proxy_pass http://vulcan;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host $host;
        proxy_read_timeout 90;

        # WebSocket support (Action Cable)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

    # Cache static assets
    location /assets/ {
        proxy_pass http://vulcan;
        proxy_cache_valid 200 1y;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }
}