Fix Crank setup on Linux (#6647)

* Add pwsh shebang

* Create a symlink pointing to the current log

* Fix function app path on Linux

* Rename $profile variable

Author: AnatoliB

tools/Crank/run-benchmarks.ps1

@@ -64,27 +64,28 @@ $crankConfigPath = Join-Path `
 
 $isLinuxApp = $CrankAgentVm -match '\blinux\b'
 
-$functionAppRootPath = if ($isLinuxApp) { "/home/$UserName/FunctionApps" } else { 'C:\FunctionApps' }
-$functionAppPath = Join-Path `
-                    -Path $functionAppRootPath `
-                    -ChildPath $FunctionApp
+$functionAppPath = if ($isLinuxApp) {
+                       "/home/$UserName/FunctionApps/$FunctionApp"
+                   } else {
+                       "C:\FunctionApps\$FunctionApp"
+                   }
 
 $tmpPath = if ($isLinuxApp) { "/tmp" } else { 'C:\Temp' }
 $tmpLogPath = if ($isLinuxApp) { "/tmp/functions/log" } else { 'C:\Temp\Functions\Log' }
 
 if ($UseHttps) {
     $aspNetUrls = "http://localhost:5000;https://localhost:5001"
-    $profile = "localHttps"
+    $profileName = "localHttps"
 }
 else {
     $aspNetUrls = "http://localhost:5000"
-    $profile = "local"
+    $profileName = "local"
 }
 
 $crankArgs =
     '--config', $crankConfigPath,
     '--scenario', $Scenario,
-    '--profile', $profile,
+    '--profile', $profileName,
     '--variable', "CrankAgentVm=$CrankAgentVm",
     '--variable', "FunctionAppPath=`"$functionAppPath`"",
     '--variable', "TempPath=`"$tmpPath`"",

tools/Crank/run-crank-agent.ps1

@@ -1,3 +1,5 @@
+#!/usr/bin/env pwsh
+
 param(
     [string]
     $UserName = 'Functions'
@@ -17,6 +19,13 @@ if (-not (Test-Path $logsDir -PathType Container)) {
 }
 
 $logFileName = Join-Path -Path $logsDir -ChildPath "$(Get-Date -Format 'yyyy-MM-dd_HH-mm-ss').log"
+New-Item -Path $logFileName -ItemType File > $null
+
+$stableLogFileName = Join-Path -Path $logsDir -ChildPath 'current.log'
+if (Test-Path $stableLogFileName) {
+    Remove-Item $stableLogFileName
+}
+New-Item -ItemType SymbolicLink -Path $stableLogFileName -Target $logFileName > $null
 
 $invokeCrankAgentCommand = $IsWindows ? 'C:\dotnet-tools\crank-agent.exe' : "/home/$UserName/.dotnet/tools/crank-agent";
 

tools/Crank/setup-crank-agent.ps1

@@ -1,3 +1,5 @@
+#!/usr/bin/env pwsh
+
 [CmdletBinding()]
 param (
     [bool]$InstallDotNet = $true,