re-registration fix

Dockerfile

@@ -35,5 +35,8 @@ RUN [Environment]::SetEnvironmentVariable(\"Path\", $env:Path + \";C:\Program Fi
 ARG RUNNER_VERSION="0.2.11"
 ADD https://gitea.com/gitea/act_runner/releases/download/v$RUNNER_VERSION/act_runner-$RUNNER_VERSION-windows-amd64.exe act_runner.exe
 
+RUN New-Item -ItemType Directory -Force -Path "C:\actions-runner\data" | Out-Null
+VOLUME C:/actions-runner/data
+
 COPY entrypoint.ps1 .
 ENTRYPOINT ["pwsh.exe", ".\\entrypoint.ps1"]

entrypoint.ps1

@@ -1,8 +1,8 @@
 # Set the labels if given
 if ($null -ne $env:GITEA_RUNNER_LABELS) { 
-  $LABELS = $env:GITEA_RUNNER_LABELS
+	$LABELS = $env:GITEA_RUNNER_LABELS
 } else {
-  $LABELS = 'windows:host'
+	$LABELS = 'windows:host,windows-msbuild:host'
 }
 
 $GITEA_RUNNER_NAME = $env:GITEA_RUNNER_NAME
@@ -10,13 +10,19 @@ $GITEA_INSTANCE_URL = $env:GITEA_INSTANCE_URL
 $GITEA_RUNNER_REGISTRATION_TOKEN = $env:GITEA_RUNNER_REGISTRATION_TOKEN
 
 try {
-  Write-Host "Configuring runner: $GITEA_RUNNER_NAME"
-  ./act_runner.exe register --no-interactive --instance $GITEA_INSTANCE_URL --token $GITEA_RUNNER_REGISTRATION_TOKEN --name $GITEA_RUNNER_NAME --labels $LABELS
+	Push-Location "data"
+	
+	# Check if runner is already registered
+    if (-not (Test-Path -Path "data/.runner")) {
+        Write-Host "Configuring new runner: $GITEA_RUNNER_NAME"
+		../act_runner.exe register --no-interactive --instance $GITEA_INSTANCE_URL --token $GITEA_RUNNER_REGISTRATION_TOKEN --name $GITEA_RUNNER_NAME --labels $LABELS
+    }
 
-  # Remove access token for security reasons
-  $env:ACCESS_TOKEN=$null
 
-  ./act_runner.exe daemon
+	# Remove registration token for security reasons
+	$env:GITEA_RUNNER_REGISTRATION_TOKEN=$null
+
+	../act_runner.exe daemon
 } catch {
-  Write-Error $_.Exception.Message
+	Write-Error $_.Exception.Message
 }