THIS PROJECT IS UNDER DEVELOPMENT, DON'T USE IT ON PRODUCTION ENVIRONMENT.

This is a NodeJS Server based on Express and cwebp, which allows you to serve WebP images on the fly.

e.g When you visit https://a.com/1.jpg，it will serve as image/webp without changing the URL.

For Safari and Opera users, the original image will be used.

Usage(Docker)

If you've docker installed, you can try build the package by doing as follows(don't worry, it's simple):

1. Download the docker-compose.yml file to a folder you like, let's say /home/nova/server1/.
2. Edit the docker-compose.yml, at line 10 ./INTAKE to the directory which contains your images.
3. run docker-compose up -d in that folder, this will run WebP Server with some parameters written in the docker-compose.yml and create the related folders.
4. Configure a NGINX server to reverse proxy it for public use.

That't it, the supervision and fail-over is handled by Docker Daemon, no more PM2s or NPMs are needed, Yay!

Or, if you like the traditional way, see below.

Usage(Traditional)

Make sure you've installed node on your system, and the version of it shall be greater than 10, it will convert jpg,jpeg,png files by default, this can be customized by editing the config.js.

1. Clone the repo and run npm install in it.
2. Make Sure you've install pm2, if not, use npm install pm2 -g
3. Define your pics folder on config.js (for instance there is a 1.jpg in the related pic folder):

   IMG_PATH: "/PATH/TO/pics",
   

4. Run the APP with pm2 start ecosystem.config.js --env production, as this is a temporary solution to suppress errors, this should be fixed on later commits.
5. Let Nginx to proxy_pass http://localhost:3333/;

Detailed deploy instruction on a systemd based distros

The following examples is tested under Ubuntu 18.04.

1. Install node

curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get install -y nodejs

2. Clone and install deps

Refer to the previous usage section.

3. Add users

useradd -s /usr/sbin/nologin webp
groupadd webp
chown webp:webp -R /opt/webp_server/

4. systemd service

cp ./webp.service /lib/systemd/systemd/
systemctl daemon-reload
systemctl enable webp.service
systemctl start webp.service

5. Nginx configuration

Suppose you're using Wordpress and would like to serve Media images locate and edit your nginx configuration as follows

location ^~ /wp-content/uploads/ {
        proxy_pass http://127.0.0.1:3333;
}

where wp-content/uploads is your image path.