如何使用 docker 构建 Selenium 环境并启动 chrome

Question

我想使用 docker 来启动 Selenium 环境并使用我的本地 mac 进行 e2e 测试。

如果是当前在docker环境下创建的Selenium，测试会通过，但是chrome浏览器不会启动。

如果在我的本地 mac 中完成了“selenium-standalone start”，chrome 将启动。

有人让我知道在使用 docker 构建时 chrome 无法启动的原因吗？

繁殖过程如下

启动泊坞窗

docker run -i -t -p 4444:4444 --rm --name e2e-test  selenium/standalone-chrome:3.1.0

本地使用 npm install webdriverio

$ mkdir -p webdriverio-test
$ cd webdriverio-test
$ npm install webdriverio --save-dev

执行“wdio repl chrome”

$ ./node_modules/.bin/wdio repl chrome

结果

$ ./node_modules/.bin/wdio repl chrome
[11:48:07]  DEBUG   Queue has stopped!
[11:48:07]  DEBUG   You can now go into the browser or use the command line as REPL
[11:48:07]  DEBUG   (To exit, press ^C again or type .exit)
>

铬不启动。

执行“./node_modules/.bin/wdio repl chrome”时的docker日志

$ ./node_modules/.bin/wdio repl chrome

2018-04-11 03:22:54.699:INFO:osjs.Server:main: Started @290ms
03:22:54.700 INFO - Selenium Server is up and running
03:23:25.398 INFO - SessionCleaner initialized with insideBrowserTimeout 0 and clientGoneTimeout 1800000 polling every 180000
03:23:25.420 INFO - Executing: [new session: Capabilities [{rotatable=true, locationContextEnabled=true, loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@56231b66, browserName=chrome, javascriptEnabled=true, handlesAlerts=true, requestOrigins={name=webdriverio, version=4.12.0, url=http://webdriver.io}}]])
03:23:25.433 INFO - Creating a new session for Capabilities [{rotatable=true, locationContextEnabled=true, loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@56231b66, browserName=chrome, javascriptEnabled=true, handlesAlerts=true, requestOrigins={name=webdriverio, version=4.12.0, url=http://webdriver.io}}]
Starting ChromeDriver 2.27.440175 (9bc1d90b8bfa4dd181fbbf769a5eb5e575574320) on port 11322
Only local connections are allowed.
03:23:26.005 INFO - Detected dialect: OSS
03:23:26.021 INFO - Done: [new session: Capabilities [{rotatable=true, locationContextEnabled=true, loggingPrefs=org.openqa.selenium.logging.LoggingPreferences@56231b66, browserName=chrome, javascriptEnabled=true, handlesAlerts=true, requestOrigins={name=webdriverio, version=4.12.0, url=http://webdriver.io}}]]

chrome启动的过程如下

安装 selenium-standalone 并在本地 mac 中启动 selenium-standalone。

$ npm install selenium-standalone@latest -g
$ selenium-standalone install

$ selenium-standalone start

执行“wdio repl chrome”

$ ./node_modules/.bin/wdio repl chrome

结果

铬将启动

执行“./node_modules/.bin/wdio repl chrome”时的硒独立日志

12:25:15.793 INFO - /status: Executing GET on /status (handler: Status)
Selenium started

12:25:35.625 INFO - Found handler: org.openqa.selenium.remote.server.commandhandler.BeginSession@538ac7ad
12:25:35.626 INFO - /session: Executing POST on /session (handler: BeginSession)
12:25:35.681 INFO - Capabilities are: Capabilities {browserName: chrome, handlesAlerts: true, javascriptEnabled: true, locationContextEnabled: true, loggingPrefs: org.openqa.selenium.logging..., requestOrigins: {name: webdriverio, url: http://webdriver.io, version: 4.12.0}, rotatable: true}
12:25:35.684 INFO - Capabilities {browserName: chrome, handlesAlerts: true, javascriptEnabled: true, locationContextEnabled: true, loggingPrefs: org.openqa.selenium.logging..., requestOrigins: {name: webdriverio, url: http://webdriver.io, version: 4.12.0}, rotatable: true} matched class org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
Starting ChromeDriver 2.36.540469 (1881fd7f8641508feb5166b7cae561d87723cfa8) on port 40458
Only local connections are allowed.
12:25:36.939 INFO - Detected dialect: OSS

Answer 1

我的 docker-compose.yml

version: "3"
services:
  selenium-hub:
    image: selenium/hub
    container_name: selenium-hub
    ports:
      - "4444:4444"
  chrome:
    image: selenium/node-chrome
    container_name: chrome
    depends_on:
      - selenium-hub
    environment:
      - HUB_HOST=selenium-hub
      - HUB_PORT=4444
      - JAVA_OPTS=-Dwebdriver.chrome.whitelistedIps=

https://gist.github.com/GetoXs/1d1469b4fb4ac83d39e7efc3d24cd630

Answer 2

将 docker 容器视为远程 selenium。 在您的代码中，您必须使用 RemoteWebDriver 并使用 4444 端口连接它。 Chrome 将在容器内运行，没有图形反馈（您不会看到 Chrome 正在运行）

问候