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# Docker Puppeteer
A Node + Puppeteer base image for running Puppeteer scripts. Add your own tools (such as Jest, Mocha, etc), link services you want to test via Docker Compose, and run your Puppeteer scripts with a headless Chromium.
See the list of [Docker Hub tags](https://hub.docker.com/r/buildkite/puppeteer/tags/) for Puppeteer versions available.
## Usage example
Dockerfile.integration-tests:
```Dockerfile
FROM buildkite/puppeteer:latest
RUN npm i mocha
ENV PATH="${PATH}:/node_modules/.bin"
```
docker-compose.integration-tests.yml:
```yml
version: '3'
services:
tests:
build:
context: .
dockerfile: Dockerfile.integration-tests
volumes:
- "./integration-tests:/integration-tests"
- "/screenshots"
command: mocha --recursive /integration-tests
links:
- app
app:
image: tutum/hello-world
expose:
- "80"
```
integration-tests/index.test.js:
```js
const assert = require('assert')
const puppeteer = require('puppeteer')
let browser
let page
before(async() => {
browser = await puppeteer.launch({
args: [
// Required for Docker version of Puppeteer
'--no-sandbox',
'--disable-setuid-sandbox',
// This will write shared memory files into /tmp instead of /dev/shm,
// because Docker’s default for /dev/shm is 64MB
'--disable-dev-shm-usage'
]
})
const browserVersion = await browser.version()
console.log(`Started ${browserVersion}`)
})
beforeEach(async() => {
page = await browser.newPage()
})
afterEach(async() => {
await page.close()
})
after(async() => {
await browser.close()
})
describe('App', () => {
it('renders', async() => {
const response = await page.goto('http://app/')
assert(response.ok())
await page.screenshot({ path: `/screenshots/app.png` })
})
})
```
Running:
```shell
docker-compose -f docker-compose.integration-tests.yml run tests
ls screenshots/
```
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