静的コンテンツ、例えば画像をS3に配置します。その画像のパスをDBに保存するときにドメインを保存しなくて、URIだけ保存しつつ表示させる方法です。

• Nginx(www.exampl.net) -> CloudFront -> S3(s3.hoge.com)

Nginx

$ sudo vi /etc/nginx/sites-enabled/homestead.test

server {
    listen 80;
    listen 443 ssl http2;
    server_name example.net www.example.net;
    root "/home/vagrant/code/public";

    index index.html index.htm index.php;

    charset utf-8;

    client_header_buffer_size 64k;
    large_client_header_buffers 4 64k;

    location / {
        try_files $uri $uri/ /index.php?$query_string;

    }

・・・

●これを追加

    location /images {
        try_files $uri @s3;
    }

・・・

    location @s3 {
        return 301 https://s3.hoge.com$request_uri;
    }

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

    access_log /var/log/nginx/homestead.test.log;
    error_log  /var/log/nginx/homestead.test-error.log error;

    sendfile off;

    client_max_body_size 200M;

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

        fastcgi_intercept_errors off;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
        fastcgi_connect_timeout 3000;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
        fastcgi_param HOSTNAME $client;
    }

    location ~ /\.ht {
        deny all;
    }

    location /phpmyadmin {
        root /usr/share;
        index index.php;

        location ~ ^/phpmyadmin.+\.php$ {
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
            fastcgi_index index.php;
            include fastcgi_params;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        }
    }

    ssl_certificate     /etc/nginx/ssl/homestead.test.crt;
    ssl_certificate_key /etc/nginx/ssl/homestead.test.key;
}

CloudFront

Behaviorで

• Path Pattern
  /images/*
• Origin or Origin Group
  S3のオリジンを指定

他はデフォルトですが🐱 …

• Viewer Protocol Policy
  HTTP and HTTPS
• Allowed HTTP Methods
  GET, HEAD
• Cached and origin request settings
  Use legacy cache setting
• Cache Based Selected Request Headers
  None(improves Caching)
• Object Caching
  Use Origin Cache Headers
• Minimum TTL
  0
• Maximum TTL
  31536000
• Default TTL
  86400
• Forward Cookies
  None(improves Caching)
• Query String Forwarding and Caching
  None(improves Caching)
• Smooth Streaming
  No
• Restrict Viewer Access
  No
• Compress Objects Automatically
  No

S3

s3.hoge.comのバケットにimagesバケットを作ってください