Added instructions to run console examples (#1525)

examples/Console/Program.cs

@@ -35,7 +35,7 @@ public class Program
         /// dotnet run -p Examples.Console.csproj zpages
         ///
         /// The above must be run from the project root folder
-        /// (eg: C:\repos\opentelemetry-dotnet\src\examples\Console\).
+        /// (eg: C:\repos\opentelemetry-dotnet\examples\Console\).
         /// </summary>
         /// <param name="args">Arguments from command line.</param>
         public static void Main(string[] args)

examples/Console/TestConsoleExporter.cs

@@ -24,6 +24,11 @@ namespace Examples.Console
 {
     internal class TestConsoleExporter
     {
+        // To run this example, run the following command from
+        // the reporoot\examples\Console\.
+        // (eg: C:\repos\opentelemetry-dotnet\examples\Console\)
+        //
+        // dotnet run console
         internal static object Run(ConsoleOptions options)
         {
             // Enable TracerProvider for the source "MyCompany.MyProduct.MyWebServer"

examples/Console/TestGrpcNetClient.cs

@@ -36,7 +36,7 @@ internal static object Run()
             var source = new ActivitySource("grpc-net-client-test");
             using (var parent = source.StartActivity("Main", ActivityKind.Server))
             {
-                using var channel = GrpcChannel.ForAddress("https://localhost:5001");
+                using var channel = GrpcChannel.ForAddress("https://localhost:44335");
                 var client = new Greeter.GreeterClient(channel);
 
                 try

examples/Console/TestHttpClient.cs

@@ -23,6 +23,11 @@ namespace Examples.Console
 {
     internal class TestHttpClient
     {
+        // To run this example, run the following command from
+        // the reporoot\examples\Console\.
+        // (eg: C:\repos\opentelemetry-dotnet\examples\Console\)
+        //
+        // dotnet run httpclient
         internal static object Run()
         {
             System.Console.WriteLine("Hello World!");
@@ -41,7 +46,7 @@ internal static object Run()
                 client.GetStringAsync("http://bing.com").GetAwaiter().GetResult();
             }
 
-            System.Console.ReadLine();
+            System.Console.WriteLine("Press Enter key to exit.");
 
             return null;
         }

examples/Console/TestJaegerExporter.cs

@@ -22,6 +22,11 @@ internal class TestJaegerExporter
     {
         internal static object Run(string host, int port)
         {
+            // To run this example, run the following command from
+            // the reporoot\examples\Console\.
+            // (eg: C:\repos\opentelemetry-dotnet\examples\Console\)
+            //
+            // dotnet run jaeger -h localhost -p 6831
             return RunWithActivity(host, port);
         }
 

examples/Console/TestOtlpExporter.cs

@@ -22,13 +22,9 @@ namespace Examples.Console
     internal static class TestOtlpExporter
     {
         internal static object Run(string endpoint)
-        {
-            return RunWithActivitySource(endpoint);
-        }
-
-        private static object RunWithActivitySource(string endpoint)
         {
             /*
+             * Prerequisite to run this example:
              * Setup an OpenTelemetry Collector to run on local docker.
              *
              * Open a terminal window at the examples/Console/ directory and
@@ -51,7 +47,11 @@ private static object RunWithActivitySource(string endpoint)
              * For more information about the OpenTelemetry Collector go to https://github.com/open-telemetry/opentelemetry-collector
              *
              */
+            return RunWithActivitySource(endpoint);
+        }
 
+        private static object RunWithActivitySource(string endpoint)
+        {
             // Enable OpenTelemetry for the sources "Samples.SampleServer" and "Samples.SampleClient"
             // and use OTLP exporter.
             using var openTelemetry = Sdk.CreateTracerProviderBuilder()

examples/Console/TestZipkinExporter.cs

@@ -24,12 +24,15 @@ internal class TestZipkinExporter
     {
         internal static object Run(string zipkinUri)
         {
-            /*
-             * Setup zipkin inside local docker.
-             * docker run -d -p 9411:9411 openzipkin/zipkin
-             *
-             * In zipkinUri, use http://localhost:9411/api/v2/spans
-             */
+            // Prerequisite for running this example.
+            // Setup zipkin inside local docker using following command:
+            // docker run -d -p 9411:9411 openzipkin/zipkin
+
+            // To run this example, run the following command from
+            // the reporoot\examples\Console\.
+            // (eg: C:\repos\opentelemetry-dotnet\examples\Console\)
+            //
+            // dotnet run zipkin -u http://localhost:9411/api/v2/spans
 
             // Enable OpenTelemetry for the sources "Samples.SampleServer" and "Samples.SampleClient"
             // and use the Zipkin exporter.