我将一个应用程序容器化，该应用程序是自动selenium测试的测试驱动程序。Selenium服务器(也称为Selenium

Hub)在localhost：4444下的另一个Container和Firefox Node中运行。但是我的应用程序无法达到它：

Build info: version: 'unknown', revision: 'unknown', time: 'unknown'

System info: host: '10d3b5fd1010', ip: '172.17.0.2', os.name: 'Linux', os.arch: 'amd64', os.version: '3.16.0-4-amd64', java.version: '1.8.0_11 1'

Driver info: driver.version: RemoteWebDriver

at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:665)

at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:249)

at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:131)

at org.openqa.selenium.remote.RemoteWebDriver.(RemoteWebDriver.java:158)

at de.services.impl.TestSetupFactory.getWebDriver(TestSetupFactory.java:408)

at de.services.impl.TestSetupFactory.getSeleniumService(TestSetupFactory.java:279)

at de.services.impl.AutomationServiceImpl.executeTests(AutomationServiceImpl.java:220)

at de.start.Start.main(Start.java:25)

Caused by: org.apache.http.conn.HttpHostConnectException: Connect to localhost:4444 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: C onnection refused (Connection refused)

at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:158)

at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)

我通过docker-compose启动了这些容器：

version: '2'

services:

hub:

image: selgrid:1.1

ports:

- "4444:4444"

firefox:

#pull latest from docker hub

image: selenium/node-firefox

volumes:

- /dev/urandom:/dev/random

depends_on:

- hub

environment:

- HUB_PORT_4444_TCP_ADDR=hub

- HUB_PORT_4444_TCP_PORT=4444

testautomation:

#run testautomation app

image: volumetest

links:

- "hub"

ports:

- "9005:9005"

我想我的docker-compose中有一个错误，但我无法弄清楚。请帮忙！顺便说一句：我正在Windows 7上运行，并将Docker与Vagrant

VM配合使用。在我的Vagrantfile中，我将端口4444和9005映射到了主机系统。如果打开本地浏览器并访问localhost：4444，则可以看到selenium网格控制台。为什么从我的应用程序容器中不起作用？