如何从.NET Core控制台应用程序创建Linux守护程序? [英] How do you create a Linux daemon from a .NET Core console application?

问题描述

我习惯于使用Topshelf创建Windows服务.借助.NET Core和跨平台的前景，这引发了许多有趣的场景:

I'm used to creating Windows services using Topshelf. With .NET Core and the prospect of going cross-platform, this raises a number of interesting scenarios:

1. 鉴于Topshelf尚不支持.NET Core，如何为.NET Core创建Windows服务? (一种方法可能是创建一个常规的.NET Core控制台应用程序并将其与NSSM一起安装，但这不提供启动/停止的挂钩，因此无法正常停止该服务.)
2. 您如何在Linux上做同样的事情?没有Windows服务，但是有守护进程的概念. 此答案提供了一种基本方法，但是需要额外的工作并且依赖于某些基础软件.
3. 上面的#1和#2是否可以使用跨平台方法来完成，还是有必要针对每个平台来解决此问题(例如使用预处理器指令)?

1. Given that Topshelf does not yet support .NET Core, how can I create Windows services for .NET Core? (One approach could be to create a regular .NET Core console application and install it with NSSM, but that doesn't provide hooks for Start/Stop, so there is no way to gracefully stop the service).
2. How do you do the same thing on Linux? There are no Windows services, but there is the concept of daemon processes. This answer provides a basic approach, but requires additional work and depends on certain underlying software.
3. Can #1 and #2 above be done using a cross-platform approach, or is it necessary to tackle this per platform (e.g. with preprocessor directives)?

以上主要是上下文.出于这个问题的目的，我想知道我需要采取哪些步骤，才能使用.NET Core在Linux上运行等效于Windows服务的功能.如果可以在各个平台上以统一的方式做到这一点，那就更好了.

The above is mainly just context. For the purpose of this question, I'd like to know what steps I need to take in order to run the equivalent of a Windows service on Linux, using .NET Core. If this can be done in a unified way across the platforms, even better.

推荐答案

我认为没有针对此的跨平台解决方案.服务是针对特定平台的，即AFAIK.

I dont think there is a cross platform solution for this. Sevices are pretty platform specific, AFAIK.

对于#2，如果要在systemd下运行.NET Core，则应该能够执行此操作而无需更改任何代码.您基本上需要做的就是发布您的应用程序，然后创建一个systemd unit文件来描述您的守护程序. systemd然后将处理启动，重新启动和终止您的应用程序.

For # 2, you should be able to do this without any code changes if you want run .NET Core under systemd. All you basically need to do is publish your application, and then create a systemd unit file to describe your daemon. systemd will then handle starting, restarting and killing your applications.

这里有一个systemd单位文件的示例，可作为服务运行ASP.NET Core应用程序:

There is an example of a systemd unit file here to run a ASP.NET Core application as a service: https://docs.microsoft.com/en-us/aspnet/core/publishing/apache-proxy#monitoring-our-application

[Unit]
Description=Example .NET Application

[Service]
WorkingDirectory=/var/aspnetcore/hellomvc
ExecStart=/usr/bin/dotnet /var/aspnetcore/hellomvc/hellomvc.dll
Restart=always
RestartSec=10
SyslogIdentifier=dotnet-example
User=apache
Environment=ASPNETCORE_ENVIRONMENT=Production 

[Install]
WantedBy=multi-user.target

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