Question

使用dotnet工具，我可以构建一个C＃项目并使用DLL运行它。

dotnet clean
dotnet build -c "Release" .
dotnet ./SeleniumSample/bin/Release/netcoreapp2.0/SeleniumSample.dll

但是，当我尝试在docker容器中复制它时，我遇到了多个问题：

加载ChromeDriver
以无头模式加载Chrome

到目前为止，我还没有找到组合样本[＆＃34; C＃＆＃34; ，＃34; Selenium＆＃34;，＆＃34; Docker＆＃34;]互联网上的任何其他地方。所以，如果你能帮助我，我会很高兴。

加载Chrome驱动程序的Snipplet：

ChromeOptions options = new ChromeOptions();
options.AddArgument("--headless");
driver = new ChromeDriver(Directory.GetCurrentDirectory(), options);

注意： Directory.GetCurrentDirectory()将指向使用chromedriver.exe cli构建生成的dotnet目录。

SeleniumSample.csproj 的内容如下所示：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <Configurations>Debug;Release;ALL</Configurations>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Selenium.Firefox.WebDriver" Version="0.20.0" />
    <PackageReference Include="Selenium.WebDriver" Version="3.12.0" />
    <PackageReference Include="Selenium.WebDriver.ChromeDriver" Version="2.38.0.1" />
  </ItemGroup>

</Project>

Dockerfile 内容：

FROM microsoft/dotnet
ARG source
WORKDIR /app
COPY ${source} .
RUN dotnet clean
RUN dotnet build -c "Release"
WORKDIR ./SeleniumSample/bin/Release/netcoreapp2.0/
ENTRYPOINT dotnet ./SeleniumSample.dll

执行所创建图像容器的代码位于docker-compose up：

docker run -i -t -P -v /lib/x86_64-linux-gnu/libglib-2.0.so.0:/lib/x86_64-linux-gnu/libglib-2.0.so.0 \ 
-v /usr/lib/x86_64-linux-gnu/libX11.so.6:/usr/lib/x86_64-linux-gnu/libX11.so.6 \ 
-v /usr/lib/x86_64-linux-gnu/libnss3.so:/usr/lib/x86_64-linux-gnu/libnss3.so \ 
-v /usr/lib/x86_64-linux-gnu/libnssutil3.so:/usr/lib/x86_64-linux-gnu/libnssutil3.so \ 
-v /usr/lib/x86_64-linux-gnu/libnspr4.so:/usr/lib/x86_64-linux-gnu/libnspr4.so \ 
-v /usr/lib/x86_64-linux-gnu/libxcb.so.1:/usr/lib/x86_64-linux-gnu/libxcb.so.1 \ 
-v /usr/lib/x86_64-linux-gnu/libplc4.so:/usr/lib/x86_64-linux-gnu/libplc4.so \ 
-v /usr/lib/x86_64-linux-gnu/libplds4.so:/usr/lib/x86_64-linux-gnu/libplds4.so \ 
-v /usr/lib/x86_64-linux-gnu/libXau.so.6:/usr/lib/x86_64-linux-gnu/libXau.so.6 \ 
-v /usr/lib/x86_64-linux-gnu/libXdmcp.so.6:/usr/lib/x86_64-linux-gnu/libXdmcp.so.6 \ 
seleniumsample_selenium-sample

发生以下错误：

Starting ChromeDriver 2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb) on port 40599
Only local connections are allowed.

Unhandled Exception: OpenQA.Selenium.WebDriverException: unknown error: cannot find Chrome binary
  (Driver info: chromedriver=2.38.552522 (437e6fbedfa8762dec75e2c5b3ddb86763dc9dcb),platform=Linux 4.13.0-41-generic x86_64)
   at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse)
   at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
   at OpenQA.Selenium.Remote.RemoteWebDriver.StartSession(ICapabilities desiredCapabilities)
   at OpenQA.Selenium.Remote.RemoteWebDriver..ctor(ICommandExecutor commandExecutor, ICapabilities desiredCapabilities)
   at OpenQA.Selenium.Chrome.ChromeDriver..ctor(ChromeDriverService service, ChromeOptions options, TimeSpan commandTimeout)
   at SeleniumSample.Utility.GetDriver(String browserName, String argument) in /app/SeleniumSample/Utility.cs:line 54
   at SeleniumSample.GmailUnreadEmails.Launcher() in /app/SeleniumSample/GmailUnreadEmails.cs:line 80
   at SeleniumSample.Launcher.Main(String[] args) in /app/SeleniumSample/Launcher.cs:line 8
Aborted (core dumped)

我的猜测是Chrome没有安装在docker镜像中，所以我收到了这个错误。如果是这样，我该如何解决这个问题？

编辑1 ：将以下行添加到Dockerfile

RUN \
  apt-get update && \
  apt-get install -y wget

RUN \
  wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - && \
  echo "deb http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google.list && \
  apt-get update && \
  apt-get install -y google-chrome-stable && \
  rm -rf /var/lib/apt/lists/*
WORKDIR /data
EXPOSE 5901

现在我收到以下错误 -

selenium-sample_1  | Only local connections are allowed.
selenium-sample_1  | 
selenium-sample_1  | Unhandled Exception: OpenQA.Selenium.WebDriverException: The HTTP request to the remote WebDriver server for URL http://localhost:45521/session timed out after 60 seconds. ---> System.Net.WebException: The operation has timed out.

完成此修改后，问题变得与this问题类似，但在网站上仍然值得拥有，因为据我所知，没有其他人尝试过这样的情景。

如何在Docker Linux容器中运行C＃Selenium程序

0 个答案: