WSL machine tests: increase kernel boot timeout

This is to avoid CI/CD flakes and is based on this analysis of
the WSL flakes logs:
microsoft/WSL#13301 (comment)

Signed-off-by: Mario Loriedo <[email protected]>

Author: l0rd

contrib/cirrus/win-podman-machine-test.ps1

@@ -43,7 +43,25 @@ $Env:TEMP = 'Z:\'
 Write-Host "`nRunning podman-machine e2e tests"
 
 if ($Env:TEST_FLAVOR -eq "machine-wsl") {
+    if ($Env:CIRRUS_CI -eq "true") {
+        # Add a WSL configuration file
+        # The `kernelBootTimeout` configuration is to prevent CI/CD flakes
+        # See
+        # https://github.com/microsoft/WSL/issues/13301#issuecomment-3367452109
+        Write-Host "`nAdding WSL configuration file"
+        $wslConfigPath = "$env:UserProfile\.wslconfig"
+        $wslConfigContent = @"
+[wsl2]
+kernelBootTimeout=300000 # 5 minutes
+"@
+        Set-Content -Path $wslConfigPath -Value $wslConfigContent -Encoding utf8
+        wsl --shutdown
+        Write-Host "`n$wslConfigPath content:"
+        Get-Content -Path $wslConfigPath
+    }
+
     # Output info so we know what version we are testing.
+    Write-Host "`nOutputting WSL version:"
     wsl --version
     Run-Command "$PSScriptRoot\win-collect-wsl-logs-start.ps1"
 }

pkg/machine/e2e/machine_test.go

@@ -144,6 +144,21 @@ func setup() (string, *machineTestBuilder) {
 		if err := os.Setenv("USERPROFILE", homeDir); err != nil {
 			Fail("unable to set home dir on windows")
 		}
+		if testProvider.VMType() == define.WSLVirt {
+			// create file $USERPROFILE/.wslconfig
+			// https://github.com/microsoft/WSL/issues/13301#issuecomment-3367452109
+			wslconfig, err := os.Create(filepath.Join(homeDir, ".wslconfig"))
+			if err != nil {
+				Fail(fmt.Sprintf("failed to create wslconfig file: %q", err))
+			}
+			_, err = wslconfig.WriteString("[wsl]\nkernelBootTimeout=300000")
+			if err != nil {
+				Fail(fmt.Sprintf("failed to write wslconfig file: %q", err))
+			}
+			if err := wslconfig.Close(); err != nil {
+				Fail(fmt.Sprintf("failed to close wslconfig file: %q", err))
+			}
+		}
 	}
 	if err := os.Setenv("XDG_RUNTIME_DIR", homeDir); err != nil {
 		Fail("failed to set xdg_runtime dir")