在Ubuntu上通过Ansible将Java Jar作为服务运行

Question

What is the best approach to run a standalone .jar as a service via Ansible? 通过Ansible将独立的.jar作为服务运行的最佳方法是什么？

I need run metabase.jar via ansible on an Ubuntu EC2 host. 我需要在Ubuntu EC2主机上通过ansible运行metabase.jar。

Should I daemonize it? 我应该守护它吗？ Is there any recommended method or library? 有没有推荐的方法或库？

Ideally I would like to manage the state via the Ansible handlers if possible. 理想情况下，如果可能的话，我想通过Ansible处理程序来管理状态。

Thanks 谢谢

Answer 1

Depending upon the init system of your underlying box (init.d or systemctl) there are two approaches. 取决于基础框（init.d或systemctl）的初始化系统，有两种方法。

init.d init.d中

With ansible you can create a symlink of your application jar under 使用ansible，您可以在下面创建应用程序jar的符号链接

/etc/init.d/<your_service_name>

You can then use ansible's service module to manage the state of the service 然后，您可以使用Ansible的服务模块来管理服务状态

 - service:
    name: <your_service_name>
    state: restarted

systemctl systemctl

If your init method is systemd you will have to create a very simple Unit file 如果您的init方法是systemd，则必须创建一个非常简单的Unit文件

[Unit]
Description=<Description>

[Service]
ExecStart=/path/to/<your_app>.jar

[Install]
WantedBy=multi-user.target

Copy the unit file to 将单位文件复制到

/etc/systemd/service/<your_unit_file>.service

Then you can use ansible's systemd module to manage the state of the service 然后，您可以使用Ansible的systemd模块来管理服务状态

- name: Start Service
  systemd:
    name: <your service name>
    state: started