docker selenium/standalone-chrome 无法连接到 docker web 服务器

Question

我正在尝试使用 codeception 为使用 docker 容器开发的 php 网站运行测试。
我在 Web 容器中创建了一个测试文件夹并将 codecept.phar 放在那里。

这是项目的设置:

docker-compose.yml:

version: '3'
  services:
    db:
      image: mariadb
      restart: always
      volumes:
        - ./db:/var/lib/mysql
      ports:
        - '3306:3306'
      environment:
        MYSQL_ROOT_PASSWORD: root
    web:
      build: .
      restart: always
      tty: true
      volumes:
        - ./src:/var/www
        - ./build/php.ini:/usr/local/etc/php/php.ini
      ports:
        - '80:80'
      depends_on:
        - db
    chrome:
      image: selenium/standalone-chrome
      restart: always
      ports:
        - '4444:4444'
        - '5900:5900'
      depends_on:
        - web

验收套件.yml

actor: AcceptanceTester
modules:
  enabled:
    - WebDriver:
        url: web
        host: chrome
        browser: chrome
        wait: 15
        window_size: false
    - \Helper\Acceptance

我用以下方式启动容器:

docker-compose up

然后我将 shell 附加到 Web 容器并使用以下命令运行测试:

php codecept.phar build && php codecept.phar run --steps

我正在运行一个简单的测试，主要尝试检查元素是否存在并截取屏幕截图:
- test1.php:

$I = new AcceptanceTester($scenario);
$I->amOnUrl('http://127.0.0.1');
$I->makeScreenshot();
$I->waitForElement(".modal");

但是由于 chrome 容器无法连接到 web 容器，所以测试没有正常运行。屏幕截图显示了一个页面，上面写着:

This site can't be reached
127.0.0.1 refused to connect

这是运行 codeception 的附加 shell 中显示的错误:

[Facebook\WebDriver\Exception\NoSuchElementException] no such element: Unable to locate element: {"method":"css selector","selector":".modal"}
(Session info: chrome=68.0.3440.84)
(Driver info: chromedriver=2.41.578700 (2f1ed5f9343c13f73144538f15c00b370eda6706),platform=Linux 4.9.0-7-amd64 x86_64)

虽然我可以连接到 http://127.0.0.1:4444/wd/hub

这是我从运行“docker-compose up”的 shell 得到的输出:

chrome_1 | INFO [GridLauncherV3.launch] - Selenium build info: version: '3.14.0', revision: 'aacccce0'
chrome_1 | INFO [GridLauncherV3$1.launch] - Launching a standalone Selenium Server on port 4444
chrome_1 | INFO::main: Logging initialized @286ms to org.seleniumhq.jetty9.util.log.StdErrLog
chrome_1 | INFO [SeleniumServer.boot] - Selenium Server is up and running on port 4444
chrome_1 | INFO [ActiveSessionFactory.apply] - Capabilities are: {"browserName": "chrome"}
chrome_1 | INFO [ActiveSessionFactory.lambda$apply$11] - Matched factory org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | Starting ChromeDriver 2[.14513.5517089780809 .(328f61]e[dS5EfV9E3R4E3]c:1 3bfi7n3d1(4)4 5r3e8tfu1r5nce0d0 ba3n7 0eerdrao6r7,0 6e) onr rpnoor=t9 91:7 2C9a4n
chrome_1 | Onnloyt  laoscsailg nc ornenqeucetsitoends  aadrder easlsl o(w9e9d).
chrome_1 | INFO [ProtocolHandshake.createSession] - Detected dialect: OSS
chrome_1 | INFO [RemoteSession$Factory.lambda$performHandshake$0] - Started new session ed60fb03c497f98a7e23bdede05c4bb9 (org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | INFO [ActiveSessions$1.onStop] - Removing session ed60fb03c497f98a7e23bdede05c4bb9 (org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | INFO [ActiveSessionFactory.apply] - Capabilities are: {"browserName": "chrome"}
chrome_1 | INFO [ActiveSessionFactory.lambda$apply$11] - Matched factory org.openqa.selenium.remote.server.ServicedSession$Factory (provider: org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | Starting ChromeDriver 2.41.578700 (2f1ed5f9343c13f73144538f15c00b370eda6706) on port 17381
chrome_1 | Only local connections are allowed.
chrome_1 | [1535110012.491][SEVERE]: bind() returned an error, errno=99: Cannot assign requested address (99)
chrome_1 | INFO [ProtocolHandshake.createSession] - Detected dialect: OSS
chrome_1 | INFO [RemoteSession$Factory.lambda$performHandshake$0] - Started new session 3c49c360624e02460995193c50f43bd3 (org.openqa.selenium.chrome.ChromeDriverService)
chrome_1 | INFO [ActiveSessions$1.onStop] - Removing session 3c49c360624e02460995193c50f43bd3 (org.openqa.selenium.chrome.ChromeDriverService)

我认为为 docker-compose 容器设置网络应该可以解决问题。
我试图按照 docker 文档( Network configuration reference )将网络设置为 "host"，但它似乎已经过时，因为版本 3 中不允许使用名称。

还尝试设置从 chrome 到 web 的链接，并在没有 compose 的情况下运行 chrome(docker run --net=host selenium/standalone-chrome)，但这没有改变。

你知道有什么方法可以使这个工作吗？
谢谢你的帮助!

Answer 1

尝试通过 set JAVA_OPTS 允许非本地主机连接到 chrome

    chrome:
      image: selenium/standalone-chrome
      restart: always
      ports:
        - '4444:4444'
        - '5900:5900'
      environment:
        - JAVA_OPTS=-Dwebdriver.chrome.whitelistedIps=
      depends_on:
        - web