clpr/Caddyfile at main · PatrickFanella/clpr · GitHub

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# Caddyfile for Blue/Green Deployment
# Simple file-based environment switching for zero-downtime deployments
#
# The active environment is stored in /data/active_env file
# Switch environments by updating this file and reloading Caddy
#
# Switch to green:  echo "green" > /data/active_env && caddy reload --config /etc/caddy/Caddyfile
# Switch to blue:   echo "blue" > /data/active_env && caddy reload --config /etc/caddy/Caddyfile
# Check current:    cat /data/active_env

{
    # Global options
    admin localhost:2019
    log {
        output stdout
        format json
        level INFO
    }
}

# Main site - adjust domain as needed
clpr.tv {
    # SSL/TLS (automatic with Let's Encrypt)
    # tls you@example.com

    # Global security headers
    header {
        # HSTS
        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"

        # Site isolation headers (Spectre mitigation)
        Cross-Origin-Opener-Policy "same-origin"
        Cross-Origin-Resource-Policy "same-origin"
        # Cross-Origin-Embedder-Policy "require-corp"  # Uncomment if you need stronger isolation

        # XSS and content type protection
        X-Content-Type-Options "nosniff"
        X-Frame-Options "DENY"
        X-XSS-Protection "1; mode=block"
        Referrer-Policy "strict-origin-when-cross-origin"

        # Content Security Policy - REPORT-ONLY mode for 24-48h monitoring
        # Monitor browser console for violations before switching to enforced mode
        Content-Security-Policy-Report-Only "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self' data:; connect-src 'self' https: wss:; object-src 'none'; base-uri 'none'; frame-ancestors 'none'; upgrade-insecure-requests"

        # ENFORCED CSP - uncomment after 24-48h of monitoring report-only mode
        # Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self' data:; connect-src 'self' https: wss:; object-src 'none'; base-uri 'none'; frame-ancestors 'none'; upgrade-insecure-requests"

        # Remove server identification
        -Server
    }

    # Access log
    log {
        output file /var/log/caddy/access.log {
            roll_size 100mb
            roll_keep 10
        }
    }

    # Matchers for different content types
    @static {
        path /assets/* *.js *.css *.jpg *.jpeg *.png *.gif *.ico *.svg *.woff *.woff2 *.ttf *.eot
    }

    @manifest {
        path /manifest.json /site.webmanifest
    }

    @seo {
        path /robots.txt /sitemap.xml /ads.txt
    }

    @html {
        path / /*.html
        not path /health.html
    }

    # Caching headers for hashed static assets (immutable)
    header @static {
        Cache-Control "public, max-age=31536000, immutable"
    }

    # Manifest files (cache for 1 hour)
    header @manifest {
        Cache-Control "public, max-age=3600"
    }

    # SEO files (cache for 1 day)
    header @seo {
        Cache-Control "public, max-age=86400"
    }

    # HTML files - no caching for SPA shell
    header @html {
        Cache-Control "no-store, must-revalidate"
    }

    # API routes -> backend
    handle /api/* {
        # Blue backend (default)
        reverse_proxy clipper-backend-blue:8080 {
            header_up Host {host}
            header_up X-Real-IP {remote_host}
            header_up X-Forwarded-For {remote_host}
            header_up X-Forwarded-Proto {scheme}

            health_uri /health
            health_interval 30s
            health_timeout 10s
            health_status 200
        }

        # Uncomment to switch to green:
        # reverse_proxy clipper-backend-green:8080 {
        #     header_up Host {host}
        #     header_up X-Real-IP {remote_host}
        #     header_up X-Forwarded-For {remote_host}
        #     header_up X-Forwarded-Proto {scheme}
        #
        #     health_uri /health
        #     health_interval 30s
        #     health_timeout 10s
        #     health_status 200
        # }
    }

    # Health check endpoint (bypasses caching)
    handle /health {
        reverse_proxy clipper-backend-blue:8080
        # Switch to green:
        # reverse_proxy clipper-backend-green:8080
    }

    # WebSocket support
    handle /ws/* {
        reverse_proxy clipper-backend-blue:8080 {
            header_up Upgrade {>Upgrade}
            header_up Connection {>Connection}
        }
        # Switch to green:
        # reverse_proxy clipper-backend-green:8080 {
        #     header_up Upgrade {>Upgrade}
        #     header_up Connection {>Connection}
        # }
    }

    # Frontend (SPA)
    handle /* {
        reverse_proxy clipper-frontend-blue:80 {
            health_uri /health.html
            health_interval 30s
        }
        # Switch to green:
        # reverse_proxy clipper-frontend-green:80
    }

    # Compression
    encode gzip
}

# HTTP to HTTPS redirect
http://clpr.tv {
    redir https://{host}{uri} permanent
}