How to Run on Azure Linux app

[nyghtrocker]

I'm getting this exception after publish to azure Linux app using .net core 3.1

System.Exception: run-detectors: unable to find an interpreter for /home/site/wwwroot/wwwroot/Rotativa/linux/wkhtmltopdf

at FIMS.Web.Controllers.InvoiceController.DownloadPaySlip(Int64 invoiceId) in d:\a\1\s\src\FIMS.Web\Controllers\InvoiceController.cs:line 250 at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker) at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.MigrationsEndPointMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

[william-finance-ni]

@nyghtrocker Did you ever get a fix for this? It works fine on my local but on Linux server i'm getting.

Win32Exception: No such file or directory System.Diagnostics.Process.ForkAndExecProcess(string filename, string[] argv, string[] envp, string cwd, bool redirectStdin, bool redirectStdout, bool redirectStderr, bool setCredentials, uint userId, uint groupId, uint[] groups, out int stdinFd, out int stdoutFd, out int stderrFd, bool usesTerminal, bool throwOnNoExec) System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo) System.Diagnostics.Process.Start() Rotativa.AspNetCore.WkhtmlDriver.Convert(string wkhtmlPath, string switches, string html, string wkhtmlExe) Rotativa.AspNetCore.WkhtmltopdfDriver.ConvertHtml(string wkhtmltopdfPath, string switches, string html) Rotativa.AspNetCore.ViewAsPdf.CallTheDriver(ActionContext context) Rotativa.AspNetCore.AsResultBase.BuildFile(ActionContext context) Rotativa.AspNetCore.AsResultBase.ExecuteResultAsync(ActionContext context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters() Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

[nyghtrocker]

Hi, I can't find solution for this problem. I wrote one small separate Api and hosted it on windows machine and make a http request from my app to this api. windows hosted api return the result as byte array or base 64 string and then use this result.

[willpower18]

Rotativa intregation working fine to me after configure de linux environment following this steps:

1 - Access the linux environment with SSH

2 - Update the packages

apt-get update

3 - Install sudo

apt-get -y install sudo

4 - Try install the package .deb

dpkg -i wkhtmltox.deb

5 - If the wkhtmltox.deb instalation fail, install the missing dependencies

apt-get -f install

6 - Try install the package .deb again

dpkg -i wkhtmltox.deb

7 - After success instalation move the file to your Rotativa folder.

sudo cp /usr/local/bin/wkhtmltopdf ~/site/wwwroot/wwwroot/Rotativa

[RGalli]

Create a file called install-tools.sh with the following content:

#!/bin/sh
apt update
apt -y install wget
### Debian 10 ### (change to your operating system)
wget https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.buster_amd64.deb
apt install -f -y ./wkhtmltox_0.12.6-1.buster_amd64.deb
### Copy files ###
cp -f /usr/local/bin/wkhtmltopdf ~/site/wwwroot/wwwroot/Rotativa
cp -f /usr/local/bin/wkhtmltoimage ~/site/wwwroot/wwwroot/Rotativa

Create a file called startup.sh with the following content:

#!/bin/sh
sh ./install-tools.sh &
dotnet PUT-YOUR-PROJECT-HERE.dll

change application execution to ./startup.sh.
Every time a new deployment occurs, the packages will be installed again.