linux - ASP.NET Core Angular 应用程序无法在带有 Nginx 和 Systemd 的 Ubuntu 16.04 上运行

Question

我有一个面向 dotnet 1.1.0 的 ASP.NET Core Angular 应用程序。

我在我的 Linux Ubuntu 16.04 上安装了 Nginx，并配置了 nginx confog 文件如下:

server {
listen 80;
location / {
    proxy_pass http://localhost:5000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection keep-alive;
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
}
}

和myapp.services文件如下:

[Unit]
Description=Sample application.

[Service]

Type=simple
WorkingDirectory=/var/myappfolder
ExecStart=/usr/bin/dotnet /var/myappfolder/myapp.dll
#User=web

[Install]

WantedBy=multi-user.target

我用一个简单的示例应用程序测试了这个设置，它运行良好。但是，一旦我将适当的应用程序部署到/var/myappfolder 并配置

systemclt start mywebsite
systemclt daemon_reload

然后检查

systemclt status mywebsite

我收到这个错误:

jtrade.service - Sample application. Loaded: loaded (/lib/systemd/system/jtrade.service; disabled; vendor preset: enabled) Active: failed (Result: signal) since Wed 2017-08-30 18:08:08 UTC; 9s ago Process: 4640 ExecStart=/usr/bin/dotnet /var/jtrade/jtradep.dll (code=killed, signal=ABRT) Main PID: 4640 (code=killed, signal=ABRT)

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Configurer.NuGetCacheSentinel.get_NuGetCachePath()

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Configurer.NuGetCacheSentinel.Exists()

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Configurer.DotnetFirstTimeUseConfigurer.ShouldPrimeNugetCache()

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Configurer.DotnetFirstTimeUseConfigurer.Configure()

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Cli.Program.ConfigureDotNetForFirstTimeUse(INuGetCacheSentinel nugetCacheSentinel)

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, ITelemetry telemetryClient)

Aug 30 18:08:08 localhost dotnet[4640]: at Microsoft.DotNet.Cli.Program.Main(String[] args)

Aug 30 18:08:08 localhost systemd[1]: jtrade.service: Main process exited, code=killed, status=6/ABRT

Aug 30 18:08:08 localhost systemd[1]: jtrade.service: Unit entered failed state.

Aug 30 18:08:08 localhost systemd[1]: jtrade.service: Failed with result 'signal'.

所以我使用 journalctl -u myappname 深入调试这个错误并获得了一些更有用的信息:

Started Sample application..

Aug 31 05:13:34 localhost dotnet[10290]: Unhandled Exception: System.InvalidOperationException: Required environment variable 'HOME' is not set. Try setting 'HOME' and running the operation again.

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Common.NuGetEnvironment.GetValueOrThrowMissingEnvVar(Func`1 getValue, String name)

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Common.NuGetEnvironment.GetHome() Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Common.NuGetEnvironment.<>c.<.cctor>b__12_0()

Aug 31 05:13:34 localhost dotnet[10290]: at System.Lazy`1.CreateValue()

Aug 31 05:13:34 localhost dotnet[10290]: --- End of stack trace from previous location where exception was thrown ---

Aug 31 05:13:34 localhost dotnet[10290]: at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

Aug 31 05:13:34 localhost dotnet[10290]: at System.Lazy`1.get_Value()

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Common.NuGetEnvironment.GetFolderPath(SpecialFolder folder)

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Common.NuGetEnvironment.GetFolderPath(NuGetFolderPath folder)

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Configuration.SettingsUtility.GetGlobalPackagesFolder(ISettings settings)

Aug 31 05:13:34 localhost dotnet[10290]: at NuGet.Configuration.NuGetPathContext.Create(ISettings settings)

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Configurer.NuGetCacheSentinel.get_NuGetCachePath()

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Configurer.NuGetCacheSentinel.Exists()

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Configurer.DotnetFirstTimeUseConfigurer.ShouldPrimeNugetCache()

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Configurer.DotnetFirstTimeUseConfigurer.Configure()

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Cli.Program.ConfigureDotNetForFirstTimeUse(INuGetCacheSentinel nugetCacheSentinel)

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, ITelemetry telemetryClient)

Aug 31 05:13:34 localhost dotnet[10290]: at Microsoft.DotNet.Cli.Program.Main(String[] args)

Aug 31 05:13:34 localhost systemd[1]: jtrade.service: Main process exited, code=killed, status=6/ABRT

Aug 31 05:13:34 localhost systemd[1]: jtrade.service: Unit entered failed state.

Aug 31 05:13:34 localhost systemd[1]: jtrade.service: Failed with result 'signal'.

如果我运行 printenv 查看我的环境变量，我会发现 HOME=/root

也许它应该设置成别的东西？

Answer 1

显然我刚刚写了 环境=HOME=/root 在 .service 文件中，一切都开始工作