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我可以使用 systemd 重启依赖服务吗？

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我可以使用 systemd 重启依赖服务吗？

我已经创建了两个服务，一个用于 rails 应用程序，另一个用于其 delayed_job 进程，我想每次重新启动 rails 服务时都重新启动 delayed_job 服务，我可以使用 systemd 来做到这一点吗？

答案1

您应该考虑使用BindsTo超过Requiresman systemd.unit

BindsTo=
  Configures requirement dependencies, very similar in style to Requires=, however in addition to this behavior, it also
  declares that this unit is stopped when any of the units listed suddenly disappears. Units can suddenly, unexpectedly
  disappear if a service terminates on its own choice, a device is unplugged or a mount point unmounted without
  involvement of systemd.

答案2

Requires=在 delayed_job systemd 文件上执行以下作业：

[Unit]
Requires=rails.service

（man systemd.unit）

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