feat: add basic auth support for OTLP and Pyroscope endpoints

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: elasticroentgen

Dockerfile

@@ -44,4 +44,8 @@ ENV DOTNET_EnableDiagnostics_IPC=0
 ENV DOTNET_EnableDiagnostics_Debugger=0
 ENV DOTNET_EnableDiagnostics_Profiler=1
 
+# Pyroscope basic auth (set at runtime)
+ENV PYROSCOPE_BASIC_AUTH_USER=""
+ENV PYROSCOPE_BASIC_AUTH_PASSWORD=""
+
 ENTRYPOINT ["dotnet", "GithubActionsOrchestrator.dll"]

Program.cs

@@ -110,7 +110,16 @@ public static void Main(string[] args)
                     .AddSource("Npgsql")
                     .AddAspNetCoreInstrumentation()
                     .AddHttpClientInstrumentation()
-                    .AddOtlpExporter()
+                    .AddOtlpExporter(opt =>
+                    {
+                        var otlpUser = Environment.GetEnvironmentVariable("OTEL_EXPORTER_OTLP_AUTH_USER");
+                        var otlpPass = Environment.GetEnvironmentVariable("OTEL_EXPORTER_OTLP_AUTH_PASSWORD");
+                        if (!string.IsNullOrEmpty(otlpUser) && !string.IsNullOrEmpty(otlpPass))
+                        {
+                            var credentials = Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes($"{otlpUser}:{otlpPass}"));
+                            opt.Headers = $"Authorization=Basic {credentials}";
+                        }
+                    })
                     .AddProcessor(new Pyroscope.OpenTelemetry.PyroscopeSpanProcessor());
             });
         builder.Services.AddSingleton<RunnerQueue>();