Add Zipkin export

src/Services/Basket/Basket.API/Basket.API.csproj

@@ -46,6 +46,7 @@
     <PackageReference Include="OpenTelemetry" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.0.1" />
+    <PackageReference Include="OpenTelemetry.Exporter.Zipkin" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc2" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc2" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc2" />

src/Services/Basket/Basket.API/OpenTelemetry.cs

@@ -43,6 +43,13 @@ static class OpenTelemetryExtensions
                     options.Headers = headers;
                 });
                 break;
+            case "zipkin":
+                tracerProviderBuilder.AddZipkinExporter(options =>
+                {
+                    var endpoint = Environment.GetEnvironmentVariable("OTEL_EXPORTER_ZIPKIN_ENDPOINT");
+                    options.Endpoint = new Uri(endpoint);
+                });
+                break;
             default:
                 tracerProviderBuilder.AddConsoleExporter();
                 break;

src/Web/WebMVC/OpenTelemetry.cs

@@ -39,6 +39,13 @@ static class OpenTelemetryExtensions
                         options.Headers = headers;
                     });
                     break;
+                case "zipkin":
+                    tracerProviderBuilder.AddZipkinExporter(options =>
+                    {
+                        var endpoint = Environment.GetEnvironmentVariable("OTEL_EXPORTER_ZIPKIN_ENDPOINT");
+                        options.Endpoint = new Uri(endpoint);
+                    });
+                    break;
                 default:
                     tracerProviderBuilder.AddConsoleExporter();
                     break;

src/Web/WebMVC/WebMVC.csproj

@@ -48,6 +48,7 @@
     <PackageReference Include="OpenTelemetry" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Exporter.Console" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.0.1" />
+    <PackageReference Include="OpenTelemetry.Exporter.Zipkin" Version="1.0.1" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc2" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc2" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc2" />

src/docker-compose.opentelemetry.zipkin.yml

@@ -0,0 +1,22 @@
+version: '3.4'
+
+# The OpenTelemetry docker-compose file is used to configure OpenTelemetry for the services
+#
+# You need to start it with the following CLI command:
+# docker-compose -f docker-compose.yml -f docker-compose.override.yml -f docker-compose.opentelemetry.zipkin.yml up
+
+services:
+  zipkin:
+    image: openzipkin/zipkin:latest
+    ports:
+      - "9411:9411"
+
+  basket-api:
+    environment:
+      - OTEL_USE_EXPORTER=zipkin
+      - OTEL_EXPORTER_ZIPKIN_ENDPOINT=${OTEL_EXPORTER_ZIPKIN_ENDPOINT:-http://zipkin:9411/api/v2/spans}
+
+  webmvc:
+    environment:
+      - OTEL_USE_EXPORTER=zipkin
+      - OTEL_EXPORTER_ZIPKIN_ENDPOINT=${OTEL_EXPORTER_ZIPKIN_ENDPOINT:-http://zipkin:9411/api/v2/spans}