systemd 实例名称 (%i) 在 ExecStart 中不起作用

Question

出于某种原因，systemd 没有替换ExecStart 中的实例名称%i或%I使用实例名称

---

/systemd/system/service/foo@.service

[Unit]
Description=Foo service for %I

[Service]
User=keith
ExecStart=/path/to/foo/%i/food
...

---

/path/to/foo/bar/food

#/bin/bash

node /path/to/foo/bar/bard.js

---

然后我运行：

$ sudo systemctl daemon-reload
$ sudo systemctl start foo@bar
$ sudo systemctl status foo@bar
? foo@bar.service - Foo service for bar
   Loaded: loaded (/etc/systemd/system/foo@.service; disabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2016-09-30 19:07:02 EDT; 6s ago
  Process: 18705 ExecStart=/path/to/foo/%i/food (code=exited, status=203/EXEC)
 Main PID: 18705 (code=exited, status=203/EXEC)

Sep 30 19:07:02 kptow systemd[1]: Started Foo service for bar.
Sep 30 19:07:02 kptow systemd[1]: foo@bar.service: Main process exited, code=exited, status=203/EXEC
Sep 30 19:07:02 kptow systemd[1]: foo@bar.service: Unit entered failed state.
Sep 30 19:07:02 kptow systemd[1]: foo@bar.service: Failed with result 'exit-code'.

该%I说明书中被替换，但%i在ExecStart没有。我试过使用%i/ %I，但都不起作用。

Answer 1

第一个参数ExecStart=必须是可执行文件的绝对路径。不接受换人。

如果你只是加载一个 bash 脚本然后启动 Node.js，你可以明确地做到这一点：

ExecStart=/bin/bash /path/to/foo/%i/food