Introduction

I constructed the environment in which Puppeteer can be executed with vagrant and docker because I did not want to install any program into my local develpment environment.

If you install Vagrant and VirtualBox, this environment will be constracted easily.

What Is Puppeteer

Puppeteer is the library that is provided by Google and useful to headlessly testing browser.

Puppeteer can do ...

• Screenshot
• Create PDF
• Scraping
• Automating Type Form Test
• Testing Javascript and the function of browser with Chrome

There was the problem about Web application with javascript like React, but Puppeteer resolve it by using latest Chrome Browser. If you do not have to do cross browser test, you should use not selenium but puppeteer.

Prepareing

• Installing VartualBox
• Installing Vagrant
• Checking my preparing repository (GitHub Repository)

Procedure

1.Git Clone

user:~$ cd AnyFolder
user:AnyFolder$ git clone git@github.com:ikeryo1182/puppeteer_tutorial.git

2.Vagrant up + ssh

user:AnyFolder$ cd puppeteer_tutorial/vagrant_puppeteer
user:vagrant_puppeteer$ vagrant up
user:vagrant_puppeteer$ vagrant ssh

In 'vagrant up', docker will be installed by provisioning.

3.Change Directory + Root

[vagrant:localhost ~]$ cd puppeteer
[vagrant:localhost puppeteer]$ sudo su

4.Setting --selinux-enabled

- OPTIONS='--selinux-enabled --log-driver=journald --signature-verification=false'
+ OPTIONS='--selinux-enabled=false --log-driver=journald --signature-verification=false'

5.Docker Enable and Start

[root:localhost puppeteer]$ systemctl enable docker.service
[root:localhost puppeteer]$ systemctl start docker.service

6.Check Docker Status

[root:localhost puppeteer]$ systemctl status -l docker

This is good if the message ( the folloing ) is displayed

--> Active: active (running) since xxx xxxx-xx-xx xx:xx:xx xxx; xxmin ago

7.Docker Build

[root:localhost puppeteer]$ docker build -t puppeteer

If you want to see more detail, you should check Dockerfile.

8.Docker Run

[root:localhost puppeteer]$ docker run --rm -it -v $(pwd):/opt/data-volume -w /opt/data-volume puppeteer

9.Vagrant rsync back

user:vagrant_puppeteer$ vagrant rsync-back

You can see the image results which is created by screenshot in script.js

This is japanese page.
If you do not need japanese font, you should modify Dockerfile in which Japanese Font is installed. It is executed in Docker build.

10.Modify script.js

const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch({
    args: [
      '--no-sandbox',
      '--disable-setuid-sandbox'
    ]
  });
  const page = await browser.newPage();
  await page.goto('https://google.com');
  await page.screenshot({ path: 'google_top.png' });

  browser.close();
})();

Modify script.js and Scraping as you like !

user:vagrant_puppeteer$ vagrant rsync
[root:localhost puppeteer]$docker build ~~~
[root:localhost puppeteer]$docker run ~~~
user:vagrant_puppeteer$ vagrant rsync-back

Thanks

Thank you for reading

Reference:
Oparating Puppeteer On Docker Container
Manipulate Headless Chrome With Puppeteer

You can check the source in the folloing URL (JP)
puppeteer_tutorial repository