I have a question like this and I don’t know how to answer it.
A daemon service which start by manual can be monitor by Upstart or systemd ？
For example， I start nginx use the command ‘nginx -c xxx.conf’ in terminal， when nginx service down， I want Upstart or systemd can restart it, how can i do this?
You may be want to say, nginx can be start by Upstart or systemd ,why do you start it by manual?Because I want hot update a service like nginx.
Can someone give me a hint?