go - 无法将go二进制文件作为systemctl守护程序运行

Question

我有一个Go Web应用程序，它位于/home/me/go/src/myapp路径上。
当我在bash终端上使用./myapp运行可执行文件时，它运行良好。
但是，这需要一个开放的终端才能继续运行，这不切实际，因此我尝试在Debian服务器的/etc/systemd/system/myapp.service上创建一个systemd守护程序，如下所示:

[Unit]
Description=MyApp Daemon
StartLimitIntervalSec=0
[Service]
Type=simple
User= me
Group=www-data
ExecStart=/home/me/go/src/myapp/myapp
TimeoutStopSec=300
[Install]
WantedBy=multi-user.target

我已经启用并启动了守护程序:

systemctl enable myapp

启动它:

systemctl start myapp

但是，它无法运行daemn，并且出现此错误:

# systemctl status myapp
● myapp.service - MyApp Daemon
   Loaded: loaded (/etc/systemd/system/myapp.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2020-07-17 05:42:18 CDT; 4s ago
  Process: 19058 ExecStart=/home/me/go/src/myapp/myapp (code=exited, status=127)
 Main PID: 19058 (code=exited, status=127)
      CPU: 2ms
 Jul 17 05:42:18 front systemd[1]: Started Myapp Daemon.
Jul 17 05:42:18 front systemd[1]: myapp.service: Main process exited, code=exited, status=127/n/a
Jul 17 05:42:18 front systemd[1]: myapp.service: Unit entered failed state.
Jul 17 05:42:18 front systemd[1]: myapp.service: Failed with result 'exit-code'.

我想知道什么可能是错误的，我该如何解决？

Answer 1

经过大量的试验和错误，此配置对我有用:

[Unit]
Description=Sai Go webapp Daemon
#After=network.target
StartLimitIntervalSec=0
[Service]
Type=simple
User= me
Group=www-data
WorkingDirectory=/home/me/go/src/myapp/
ExecStart=/home/me/go/src/myapp/myapp
TimeoutStopSec=300
[Install]
WantedBy=multi-user.target

显然 WorkingDirectory是必要的。