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Puppeteer OGP

OPG generating server application with Puppeteer.

Getting Started

Configure .env

BASE_URL=https://your.website
IMAGE_WIDTH=600
IMAGE_HEIGHT=315
URL_FILTER=/articles,/posts

Development

You can use docker-compose

docker-compose up -d

Install dependencies

docker-compose exec app bash
yarn

And start server

npm start

If you access http://localhost:3000/path/to/page.png, Screenshot of https://your.website/path/to/page is rendered.

Deployment

Install npm and yarn and google-chrome.

Dockerfile contains installation sample for google-chrome. (Chrome Driver may not be needed)

PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true yarn

Systemd

Service sample.

/etc/systemd/system/ogp.service

[Unit]
Description=ogp server
After=syslog.target network.target

[Service]
Type=simple
ExecStart=/usr/bin/npm start
WorkingDirectory=/path/to/puppeteer-ogp
KillMode=mixed
Restart=always
User=yourname
Group=yourgroup

[Install]
WantedBy=multi-user.target

Enable service and start

sudo systemctl enable ogp
sudo service ogp start

Nginx

If you use SSL and 80 port, it's easy to use Nginx.

        listen 443 ssl default_server;
        ssl_certificate /etc/letsencrypt/live/ogp.example.net/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/ogp.example.net/privkey.pem;

        server_name ogp.example.net;

        proxy_redirect off;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;

        location ^~ /.well-known/ {
                root /var/www/html;
        }

        location / {
                proxy_pass http://localhost:3000/;
        }

Contribution

Feel free to create issue or PR.