Fix multi-instance logging and make it optional

davidebbo · Dec 5, 2017 · c8b6aa6 · c8b6aa6
1 parent 66e8d2a
commit c8b6aa6
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/TracingLauncher/Program.cs b/TracingLauncher/Program.cs
@@ -14,10 +14,13 @@ class Program
 
         static int Main(string[] args)
         {
+            bool loggingEnabled = Environment.GetEnvironmentVariable("TRACINGLAUNCHER_ENABLE_LOGGING") == "1";
+            string roleInstance = Environment.GetEnvironmentVariable("RoleInstance") ?? Environment.MachineName;
+
             string dir = Path.GetDirectoryName(typeof(Program).Assembly.Location);
-            string logFilePath = Path.Combine(dir, "TracingLauncherLogs.log");
+            string logFilePath = Path.Combine(dir, $"TracingLauncherLogs_{roleInstance}.log");
 
-            using (_logWriter = new StreamWriter(logFilePath))
+            using (_logWriter = loggingEnabled ? new StreamWriter(logFilePath) : TextWriter.Null)
             {
                 _logWriter.WriteLine("Starting TracingLauncher");