Nginx Config Generator

# HTTP -> HTTPS redirect
server {
    listen 80;
    listen [::]:80;
    server_name example.com www.example.com;
    return 301 https://$host$request_uri;
}

server {
    listen 80;
    listen [::]:80;
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name example.com;
    return 301 https://www.example.com$request_uri;
}

server {
    listen 443 ssl http2;
        listen [::]:443 ssl http2;
    server_name example.com;

    # SSL
    ssl_certificate         /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key     /etc/letsencrypt/live/example.com/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/example.com/chain.pem;

    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:10m;
    ssl_session_tickets off;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305;
    ssl_prefer_server_ciphers off;

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver 1.1.1.1 8.8.8.8 valid=60s;
    resolver_timeout 2s;

    # Security headers
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Permissions-Policy "geolocation=(), microphone=(), camera=()" always;

    # Gzip
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types text/plain text/css text/xml application/json application/javascript application/xml+rss application/atom+xml image/svg+xml;

    client_max_body_size 16M;

    access_log /var/log/nginx/example.com.access.log;
    error_log  /var/log/nginx/example.com.error.log warn;

    root /var/www/example.com;
    index index.html index.htm;

    location / {
        try_files $uri $uri/ =404;
    }

    # Static asset caching
    location ~* \.(?:css|js|jpg|jpeg|gif|png|ico|svg|webp|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }
}