Fix analyzer issues in docs (#3026)

Author: tillig

docs/logs/extending-the-sdk/Program.cs

@@ -18,6 +18,8 @@
 using Microsoft.Extensions.Logging;
 using OpenTelemetry;
 
+namespace ExtendingTheSdk;
+
 public class Program
 {
     public static void Main()
@@ -37,8 +39,8 @@ public static void Main()
         // unstructured log
         logger.LogInformation("Hello, World!");
 
-        // unstructured log with string interpolation
-        logger.LogInformation($"Hello from potato {0.99}.");
+        // String interpolation, as in the below line, results in unstructured logging, and is not recommended
+        // logger.LogInformation($"Hello from potato {0.99}.");
 
         // structured log with template
         logger.LogInformation("Hello from {name} {price}.", "tomato", 2.99);

docs/logs/getting-started/Program.cs

@@ -17,6 +17,8 @@
 using Microsoft.Extensions.Logging;
 using OpenTelemetry.Logs;
 
+namespace GettingStarted;
+
 public class Program
 {
     public static void Main()

docs/logs/source-generation/FoodSupplyLogs.cs

@@ -16,6 +16,8 @@
 
 using Microsoft.Extensions.Logging;
 
+namespace SourceGeneration;
+
 public static partial class FoodSupplyLogs
 {
     [LoggerMessage(

docs/logs/source-generation/Program.cs

@@ -17,6 +17,8 @@
 using Microsoft.Extensions.Logging;
 using OpenTelemetry.Logs;
 
+namespace SourceGeneration;
+
 public class Program
 {
     public static void Main()

docs/metrics/customizing-the-sdk/Program.cs

@@ -19,12 +19,14 @@
 using OpenTelemetry;
 using OpenTelemetry.Metrics;
 
+namespace CustomizingTheSdk;
+
 public class Program
 {
     private static readonly Meter Meter1 = new("CompanyA.ProductA.Library1", "1.0");
     private static readonly Meter Meter2 = new("CompanyA.ProductB.Library2", "1.0");
 
-    public static void Main(string[] args)
+    public static void Main()
     {
         using var meterProvider = Sdk.CreateMeterProviderBuilder()
             .AddMeter(Meter1.Name)

docs/metrics/extending-the-sdk/Program.cs

@@ -21,6 +21,8 @@
 using OpenTelemetry;
 using OpenTelemetry.Metrics;
 
+namespace ExtendingTheSdk;
+
 public class Program
 {
     private static readonly Meter MyMeter = new("MyCompany.MyProduct.MyLibrary", "1.0");
@@ -38,7 +40,7 @@ static Program()
             });
     }
 
-    public static void Main(string[] args)
+    public static void Main()
     {
         using var meterProvider = Sdk.CreateMeterProviderBuilder()
             .AddMeter("MyCompany.MyProduct.MyLibrary")

docs/metrics/getting-started-prometheus-grafana/Program.cs

@@ -20,12 +20,14 @@
 using OpenTelemetry;
 using OpenTelemetry.Metrics;
 
+namespace GettingStartedPrometheusGrafana;
+
 public class Program
 {
     private static readonly Meter MyMeter = new("MyCompany.MyProduct.MyLibrary", "1.0");
     private static readonly Counter<long> MyFruitCounter = MyMeter.CreateCounter<long>("MyFruitCounter");
 
-    public static void Main(string[] args)
+    public static void Main()
     {
         using var meterProvider = Sdk.CreateMeterProviderBuilder()
             .AddMeter("MyCompany.MyProduct.MyLibrary")

docs/metrics/getting-started/Program.cs

@@ -18,12 +18,14 @@
 using OpenTelemetry;
 using OpenTelemetry.Metrics;
 
+namespace GettingStarted;
+
 public class Program
 {
     private static readonly Meter MyMeter = new("MyCompany.MyProduct.MyLibrary", "1.0");
     private static readonly Counter<long> MyFruitCounter = MyMeter.CreateCounter<long>("MyFruitCounter");
 
-    public static void Main(string[] args)
+    public static void Main()
     {
         using var meterProvider = Sdk.CreateMeterProviderBuilder()
             .AddMeter("MyCompany.MyProduct.MyLibrary")

docs/metrics/learning-more-instruments/Program.cs

@@ -21,6 +21,8 @@
 using OpenTelemetry;
 using OpenTelemetry.Metrics;
 
+namespace LearningMoreInstruments;
+
 public class Program
 {
     private static readonly Meter MyMeter = new("MyCompany.MyProduct.MyLibrary", "1.0");
@@ -35,7 +37,7 @@ static Program()
         MyMeter.CreateObservableGauge("Thread.State", () => GetThreadState(process));
     }
 
-    public static void Main(string[] args)
+    public static void Main()
     {
         using var meterProvider = Sdk.CreateMeterProviderBuilder()
             .AddMeter("MyCompany.MyProduct.MyLibrary")

docs/trace/customizing-the-sdk/Program.cs

@@ -18,6 +18,8 @@
 using OpenTelemetry;
 using OpenTelemetry.Trace;
 
+namespace CustomizingTheSdk;
+
 public class Program
 {
     private static readonly ActivitySource MyLibraryActivitySource = new(