nginx 配置 强制访问https

使用nginx的301状态码 

server {
    listen 80;

    listen 443 ssl http2;
    server_name xxx.com;
    ssl_certificate    /usr/local/nginx/ssl/xxx.com.crt;
    ssl_certificate_key    /usr/local/nginx/ssl/xxx.com.key;
    ssl_trusted_certificate    /usr/local/nginx/ssl/xxx.com.crt;

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

    # Mozilla Intermediate configuration
    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:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;

    # OCSP Stapling
    ssl_stapling on;
    ssl_stapling_verify on;
    resolver 1.1.1.1 1.0.0.1 8.8.8.8 8.8.4.4 208.67.222.222 208.67.220.220 valid=60s;
    resolver_timeout 2s;

    if ($scheme = http) {
    return 301 https://$host$request_uri;
    }

    # reverse proxy
    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version  1.1;
        proxy_cache_bypass  $http_upgrade;

        proxy_set_header Upgrade            $http_upgrade;
        proxy_set_header Connection         "upgrade";
        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_set_header X-Forwarded-Port   $server_port;
    }

    # favicon.ico
    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

    # robots.txt
    location = /robots.txt {
        log_not_found off;
        access_log off;
    }

    # assets, media
    location ~* \.(?:css(\.map)?|js(\.map)?|jpe?g|png|gif|ico|cur|heic|webp|tiff?|mp3|m4a|aac|ogg|midi?|wav|mp4|mov|webm|mpe?g|avi|ogv|flv|wmv)$ {
        expires 7d;
        access_log off;
    }

    # svg, fonts
    location ~* \.(?:svgz?|ttf|ttc|otf|eot|woff2?)$ {
        add_header Access-Control-Allow-Origin "*";
        expires 7d;
        access_log off;
    }

    # 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/rss+xml application/atom+xml image/svg+xml;

}