what are the required shared libraries in a linux container?

[jaguarxii]

Description

I have deployed a webapp to azure using plotly.net but it throws several errors of missing shared libraries.
The webapp works perfectly on the development environment (windows 10).

Repro steps

Perhaps I am doing something wrong it is the first time I am using this library, this is the code I am using:

`*
Layout newChartLayout = Layout.init(
Title: Title.init(Text: "Visitas (cantidad de visitas)"),
BarMode: BarMode.Stack,
UniformText: UniformText.init(Mode: UniformTextMode.Show, MinSize: 6),
PaperBGColor: Color.fromARGB(0, 0, 0, 0),
PlotBGColor: Color.fromARGB(0, 0, 0, 0),
Font: Font.init(Family:FontFamily.Consolas, Color:Color.fromRGB(255,0,0))
//Font: Font.init(Family:FontFamily.NewCustom("Nunito"))
);

                LinearAxis newXAxis = LinearAxis.init<IConvertible, IConvertible, IConvertible, IConvertible, IConvertible, IConvertible>(
                    Title: Title.init(Text: "Fecha (Mes Dia - Hora)"),
                    ShowGrid: true,
                    TickFont: Font.init(Family:FontFamily.Consolas, Color:Color.fromRGB(255,0,0))
                );

                LinearAxis newYAxis = LinearAxis.init<IConvertible, IConvertible, IConvertible, IConvertible, IConvertible, IConvertible>(
                    Title: Title.init(Text: "Cantidad"),
                    ShowGrid: true,
                    AutoMargin: true,
                    DTick: 1,
                    TickFont: Font.init(Family:FontFamily.Consolas, Color:Color.fromRGB(255,0,0))
                );

                int[] xData = new int[] { 320, 170, 17, 9, 6, 1 };
                string[] yLabels = new string[] { "GIMNASIO", "PISCINA", "BBQ TERRAZA", "BUSINESS CENTER", "SALA DE JUEGOS", "EDIFICIO CARAVAGGIO" };

                var newChart = Chart2D.Chart.Bar<int, string, int, int, int>(
                    values: xData,
                    Keys: yLabels, 
                    Name: "Area")
                .WithLayout(newChartLayout)
                .WithXAxis(newXAxis)
                .WithYAxis(newYAxis);

                svgChart = newChart.ToSVGString(Plotly.NET.ImageExport.ExportEngine.PuppeteerSharp, 600, 300);

*`

Expected behavior

Get SVG string to embed into a pdf report

Actual behavior

It crashes, so far I have installed these libraries in the production enviroment:
libnss3
libatk1.0-0
libatk-bridge2.0-0
cups

Error messages like these are thown

`*
PuppeteerSharp.ProcessException: Failed to launch browser! /home/site/wwwroot/.local-chromium/Linux-884014/chrome-linux/chrome: error while loading shared libraries: libxkbcommon.so.0: cannot open shared object file: No such file or directory

at PuppeteerSharp.States.ChromiumStartingState.StartCoreAsync(LauncherBase p) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\States\ChromiumStartingState.cs:line 83
at PuppeteerSharp.States.ChromiumStartingState.StartCoreAsync(LauncherBase p) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\States\ChromiumStartingState.cs:line 89
at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\Launcher.cs:line 68
at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\Launcher.cs:line 91 | Stack: .lambda_method530 => ReportController.ballotResult => ReportService.getBallotResult
*`

Related information

• Operating system: Linux 5a5597962fdd 4.15.0-169-generic x86_64
• Branch:
  "Plotly.NET" Version="3.0.0"
  "Plotly.NET.ImageExport" Version="3.0.0"
• .NET Runtime: ASP .NETCore Version: 6.0.3

[kMutagene]

Possibly related: #319 , #323

[kMutagene]

For running Puppeteersharp (the lib used internally for image export) on linux, here are some links for prerequisites and troubleshooting: https://github.com/hardkoded/puppeteer-sharp#prerequisites

[kMutagene]

In your case, it might just be missing X-server (which is something most likely not included in a minimal linux container)

[jaguarxii]

I think I got to a dead end, after following the prerequisites, this error is thrown:

Running as root without --no-sandbox is not supported. See https://crbug.com/638180

[kMutagene]

You can set that on the PuppeteerSharp launch options object:

using Plotly.NET;
using Plotly.NET.ImageExport;

PuppeteerSharpRendererOptions.launchOptions.Args = new string [] {"--no-sandbox"};

[kMutagene]

see also hardkoded/puppeteer-sharp#1211

[WhiteBlackGoose]

We bumped the version of Puppeteer Sharp recently. Try using the prerelease version too.

dotnet new nugetconfig
dotnet nuget add source https://www.myget.org/F/plotly-net-nightly/api/v3/index.json
dotnet add package Plotly.NET.ImageExport --prerelease

[UncleUgl]

You can try to install extra dependencies. For me worked.

sudo apt-get install -y gconf-service libasound2 libatk1.0-0 libatk-bridge2.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils wget libgbm-dev

[jaguarxii]

I gave up, found another library to chart from the server side by running an external js file (nodejs).
Works pretty well so far, thanks for your comments.