Swoole On-demand Image Proxy Server

Benefit

Save traffic cost using LightSail VPS.

How to use

https://[domain]/[image_path]@[options]

@option spec.

param	Instruction
w[int]	resize image based on width. ex) w150
h[int]	resize image based on height. ex) h150

Examples

https://image.candleworks.com/test-image.jpg@w400 -> resized
https://image.candleworks.com/test-image.jpg -> original

Install

Below instructions are executed on Ubuntu 18.04

Swoole

sudo apt-get install php php-dev php-xml
sudo pecl install swoole

php -i | grep php.ini                      # check the php.ini file location
sudo echo "extension=swoole.so" >> /etc/php/7.2/cli/php.ini  # add the extension=swoole.so to the end of php.ini
php -m | grep swoole

Nginx

sudo apt-get install nginx

Configure

# nginx proxy server setting

server {
    listen 80;
    root /home/ubuntu/default/current/public;
    server_name domain.com;

    location / {
        set $suffix ?$query_string;

        proxy_set_header Host $http_host;
        proxy_set_header Scheme $scheme;
        proxy_set_header SERVER_PORT $server_port;
        proxy_set_header REMOTE_ADDR $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        # if you need HTTPS
        # proxy_set_header HTTPS "on";

        proxy_pass http://127.0.0.1:9501$request_uri;
        proxy_cookie_path / /;
        expires 90d; # for browser cache
    }
}

Deployment & Register service

cd ~
git clone https://github.com/evans-kim/image-server.git image-server
cd image-server 
chmod 755 service.sh
vi service.ini 
# update correct path WorkingDirectory=/home/ubuntu/image-server
# update correct path ExecStart=/home/ubuntu/image-server/service.sh
sudo cp ./service.ini /etc/systemd/system/image-proxy.service
sudo service image-proxy start
sudo service image-proxy status
sudo service nginx reload
sudo service nginx start