通過守護程序 systemd 在相對路徑中啟動 dotnet core 執行檔

dotnet core我已經為 linux arm 機器開發並發布了一個 Web 應用程序。為此，已啟動命令：

dotnet publish --runtime linux-arm -p:PublishSingleFile=true

結果給出了目錄：

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
d-----       10/03/2020      8:56                wwwroot
-a----       09/03/2020     10:54            162 appsettings.Development.json
-a----       09/03/2020     10:54            192 appsettings.json
-a----       10/03/2020      8:56      108097487 coremonitor
-a----       09/03/2020     12:59           7248 coremonitor.pdb
-a----       10/03/2020      8:56            474 web.config

coremonitor執行檔在哪裡。該數據被發送到伺服器並儲存在路徑中/root/datalogger/linux-arm/。然後我們創建了 systemd 守護程序來啟動它：

[Unit]
Description=Data Logger Monitor Daemon

[Service]
ExecStart=./coremonitor
WorkingDirectory=/root/dataloggermonitor/linux-arm
User=dotnetuser
Group=dotnetuser
Restart=on-failure
SyslogIdentifier=DataLoggerMonitor-Service
PrivateTmp=true

[Install]
WantedBy=multi-user.target

重新啟動後，我得到以下 systemd 日誌（systemctl status dataloggermonitor）：

● dataloggermonitor.service - Data Logger Monitor Daemon
  Loaded: error (Reason: Invalid argument)
  Active: inactive (dead)

ExecStart這可以通過直接在參數中輸入執行路徑來解決。系統將從自己的相對路徑啟動執行檔：

[Unit]
Description=Data Logger Monitor Daemon

[Service]
ExecStart=/root/dataloggermonitor/linux-arm/coremonitor
User=dotnetuser
Group=dotnetuser
Restart=on-failure
SyslogIdentifier=DataLoggerMonitor-Service
PrivateTmp=true

[Install]
WantedBy=multi-user.target

得到：

● dataloggermonitor.service - Data Logger Monitor Daemon
  Loaded: loaded (/etc/systemd/system/dataloggermonitor.service; enabled)
  Active: active (running) since Tue 2020-03-10 10:33:41 CET; 28s ago
Main PID: 403 (coremonitor)
  CGroup: /system.slice/dataloggermonitor.service
          └─403 /root/dataloggermonitor/linux-arm/coremonitor

Mar 10 10:33:41 techbase systemd[1]: Starting Data Logger Monitor Daemon...
Mar 10 10:33:41 techbase systemd[1]: Started Data Logger Monitor Daemon.
Mar 10 10:34:01 techbase DataLoggerMonitor-Service[403]: Hosting environment: Production
Mar 10 10:34:01 techbase DataLoggerMonitor-Service[403]: Content root path: /var/tmp/.net/coremonitor/gcrmbwbh.wxk/
Mar 10 10:34:01 techbase DataLoggerMonitor-Service[403]: Now listening on: http://[::]:5000
Mar 10 10:34:01 techbase DataLoggerMonitor-Service[403]: Application started. Press Ctrl+C to shut down.

引用自：https://unix.stackexchange.com/questions/572123