Playwright- .NET Core 3.1应用程序中的锐化，托管在docker容器中

Question

我已经创建了一个.NET Core3.1Nuget库，它围绕Playwright-sharp v0.192.0包装了功能。我在REST API (也是.NET Core3.1)中使用了这个库，在本地一切正常。唯一的要求是主机应用程序还需要引用Playwright-sharp，以便正确下载驱动程序。这是我可以接受的。

当我尝试在Docker (linux)中运行REST API时，出现了这个问题。安装依赖项(libc6、libgdi等)后，我得到以下异常：

PlaywrightSharp.PlaywrightSharpException: Driver not found in any of the locations.
   at PlaywrightSharp.Transport.Connection.GetExecutablePath() in /home/runner/work/playwright-sharp/playwright-sharp/src/PlaywrightSharp/Transport/Connection.cs:line 274
   at PlaywrightSharp.Transport.Connection.GetProcess(String driverExecutablePath) in /home/runner/work/playwright-sharp/playwright-sharp/src/PlaywrightSharp/Transport/Connection.cs:line 233
   at PlaywrightSharp.Transport.Connection.InstallAsync(String driverPath, String browsersPath) in /home/runner/work/playwright-sharp/playwright-sharp/src/PlaywrightSharp/Transport/Connection.cs:line 105

一种建议是从Playwright sharp图像开始，而不是.NET 3.1，但在我看来，这应该是一种包含所需文件并将它们放在正确位置的方法。我当前的dockerfile如下所示：

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/core/sdk:3.1-buster AS build
WORKDIR /src

COPY ./PlaywrightWrapper/nuget.config .

COPY ["PlaywrightWrapper/PlaywrightWrapper.csproj", "PlaywrightWrapper/"]
RUN dotnet restore "PlaywrightWrapper/PlaywrightWrapper.csproj" --configfile nuget.config
COPY . .
WORKDIR "/src/PlaywrightWrapper"
RUN dotnet build "PlaywrightWrapper.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "PlaywrightWrapper.csproj" -c Release -r linux-x64 -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .

# install depdendencies
RUN apt-get update \
&& apt-get install -y --allow-unauthenticated \
    libc6-dev \
    libgdiplus \
    libx11-dev \
 && rm -rf /var/lib/apt/lists/*

# copy the Playwright browsers from .NET build step
WORKDIR /root/.cache/ms-playwright
COPY --from=build /root/.cache/ms-playwright ./


WORKDIR /app
ENTRYPOINT ["dotnet", "PlaywrightWrapper.dll"]

这一步：

WORKDIR /root/.cache/ms-playwright
COPY --from=build /root/.cache/ms-playwright ./

将文件复制到我在官方Playwright-sharp docker图像中看到的同一文件夹中。

有没有人有一个可以工作的Dockerfile，可以在Docker容器中安装生成无头PDF所需的Playwright驱动程序？

Answer 1

终于有时间再次研究这个问题，并提出了一个解决方案。

在我的例子中，使用playwrightsharp docker图像(建议使用here)的几种有希望的方法都不起作用。我仍然不确定确切的原因，但我不得不手动添加所有依赖项。只要确保与playwright浏览器版本(npm i ..)匹配即可。添加到您正在使用的Playwright Sharp NuGet包(在我的示例中为0.192.0)：

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1-buster-slim AS base

RUN apt-get update && apt-get install -y --no-install-recommends \
    xvfb

RUN apt-get update && apt-get install -y --no-install-recommends \
    fonts-liberation\
    libasound2\
    libatk-bridge2.0-0\
    libatk1.0-0\
    libatspi2.0-0\
    libcairo2\
    libcups2\
    libdbus-1-3\
    libdrm2\
    libgbm1\
    libglib2.0-0\
    libgtk-3-0\
    libnspr4\
    libnss3\
    libpango-1.0-0\
    libx11-6\
    libxcb1\
    libxcomposite1\
    libxdamage1\
    libxext6\
    libxfixes3\
    libxrandr2

 RUN apt-get update && apt-get install -y npm && \
     npm i playwright-chromium@1.9.2 && \
     npm i playwright-firefox@1.9.2 && \
     npm i playwright-webkit@1.9.2
 RUN apt-get remove nodejs -y

... the rest of your docker file here