$ docker run --rm -it -p 8000:80 mcr.microsoft.com/dotnet/samples:aspnetapp{"EventId":60,"LogLevel":"Warning","Category":"Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository","Message":"Storing keys in a directory u0027/root/.aspnet/DataProtection-Keysu0027 that may not be persisted outside of the container. Protected data will be unavailable when container is destroyed.","State":{"Message":"Storing keys in a directory u0027/root/.aspnet/DataProtection-Keysu0027 that may not be persisted outside of the container. Protected data will be unavailable when container is destroyed.","path":"/root/.aspnet/DataProtection-Keys","{OriginalFormat}":"Storing keys in a directory u0027{path}u0027 that may not be persisted outside of the container. Protected data will be unavailable when container is destroyed."}}{"EventId":35,"LogLevel":"Warning","Category":"Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager","Message":"No XML encryptor configured. Key {86cafacf-ab57-434a-b09c-66a929ae4fd7} may be persisted to storage in unencrypted form.","State":{"Message":"No XML encryptor configured. Key {86cafacf-ab57-434a-b09c-66a929ae4fd7} may be persisted to storage in unencrypted form.","KeyId":"86cafacf-ab57-434a-b09c-66a929ae4fd7","{OriginalFormat}":"No XML encryptor configured. Key {KeyId:B} may be persisted to storage in unencrypted form."}}{"EventId":14,"LogLevel":"Information","Category":"Microsoft.Hosting.Lifetime","Message":"Now listening on: http://[::]:80","State":{"Message":"Now listening on: http://[::]:80","address":"http://[::]:80","{OriginalFormat}":"Now listening on: {address}"}}{"EventId":0,"LogLevel":"Information","Category":"Microsoft.Hosting.Lifetime","Message":"Application started. Press Ctrlu002BC to shut down.","State":{"Message":"Application started. Press Ctrlu002BC to shut down.","{OriginalFormat}":"Application started. Press Ctrlu002BC to shut down."}}{"EventId":0,"LogLevel":"Information","Category":"Microsoft.Hosting.Lifetime","Message":"Hosting environment: Production","State":{"Message":"Hosting environment: Production","envName":"Production","{OriginalFormat}":"Hosting environment: {envName}"}}{"EventId":0,"LogLevel":"Information","Category":"Microsoft.Hosting.Lifetime","Message":"Content root path: /app","State":{"Message":"Content root path: /app","contentRoot":"/app","{OriginalFormat}":"Content root path: {contentRoot}"}}Logging__Console__FormatterName 可以通过设置或取消设置环境变量或通过代码更改来更改记录器格式类型（有关更多详细信息 ， 请参阅控制台日志格式） 。
更改后 ， 您将看到如下输出（就像 .NET 5 一样）：

$ docker run --rm -it -p 8000:80 -e Logging__Console__FormatterName="" mcr.microsoft.com/dotnet/samples:aspnetappwarn: Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository[60]Storing keys in a directory '/root/.aspnet/DataProtection-Keys' that may not be persisted outside of the container. Protected data will be unavailable when container is destroyed.warn: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[35]No XML encryptor configured. Key {8d4ddd1d-ccfc-4898-9fe1-3e7403bf23a0} may be persisted to storage in unencrypted form.info: Microsoft.Hosting.Lifetime[14]Now listening on: http://[::]:80info: Microsoft.Hosting.Lifetime[0]Application started. Press Ctrl+C to shut down.info: Microsoft.Hosting.Lifetime[0]Hosting environment: Productioninfo: Microsoft.Hosting.Lifetime[0]Content root path: /app注意：此更改不会影响开发人员计算机上的 .NET SDK ， 例如 dotnet run. 此更改特定于 aspnet 容器映像 。
支持 OpenTelemetry 指标
作为我们关注可观察性的一部分 ， 我们一直在为最后几个 .NET 版本添加对 OpenTelemetry 的支持 。 在 .NET 6 中 ， 我们添加了对 OpenTelemetry Metrics API的支持 。 通过添加对 OpenTelemetry 的支持 ， 您的应用程序可以与其他 OpenTelemetry 系统无缝互操作 。