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Function App - Cron Job

Cron Job Trigger​

To configure a timer trigger, you need to define a function.json file that specifies the schedule and other properties of the trigger. The schedule is defined using a cron expression. This setting is for asp.net framework, for last version please refer to Azure function doc

function.json file in Azure function app​

{
  "bindings": [
    {
      "name": "mytimer",
      "type": "timerTrigger",
      "direction": "in",
      "schedule": "0 */5 * * * *" // every 5 minutes
    }
  ]
}

csx file in Azure function app​

using System;

public static void Run(TimerInfo myTimer, TraceWriter log)
{
    System.Diagnostics.Process process = new System.Diagnostics.Process();
    process.StartInfo.FileName = @"D:\home\site\wwwroot\TimerTriggerCSharp1\testfunc.exe";
    process.StartInfo.Arguments = "";
    process.StartInfo.UseShellExecute = false;
    process.StartInfo.RedirectStandardOutput = true;
    process.StartInfo.RedirectStandardError = true;
    process.Start();
    string output = process.StandardOutput.ReadToEnd();
    string err = process.StandardError.ReadToEnd();
    process.WaitForExit();

    log.Info($"C# Timer trigger function executed at: {DateTime.Now}");
}

Reference​

Run executable file in Azure
cron cheat sheet