Hi all,
I want to launch a script as a background job by using "&".
First, I try the shell module but it doesn't work (means run as a
foreground job).
Please read about async mode here:
it works.
Thank you!
2013/10/17 4:51 “Michael DeHaan” <michael@ansibleworks.com>:
I have a similar problem, and I read the docs, but I must be not seeing something obvious. Here is a fragment of a yaml file (the entire file is here):
- name: Launch project
command: (sleep 2; /bin/echo “Of course your realize that this means war” > $home/nohup.out)
async: 15
poll: 0
There is no output from that step when run with -vv. What am I missing?
async: 15 will set a “time to live” for 15 seconds to the task.
Poll: 0 means “fire and forget, I don’t want any output”.
Sounds like you might want to do poll: 5 or so.
It also sounds like your project might benefit from a service init script, and then you can just use the service module.
I just want to kick off a background process. I don’t want any output.
I thought that Service only pertained to system services. Can I use them for background tasks also?
Thanks,
Mike
So contradictory statements:
“There is no output from that step when run with -vv. What am I missing?”
“I just want to kick off a background process. I don’t want any output.”
Which do you want and what are you getting versus what you are expecting?
“I thought that Service only pertained to system services. Can I use them for background tasks also?”
Yes, you can write system init scripts to do basically anything.
You might also be interested in something like supervisor, which we also have a module for.
I defined a system service and it works. Thank you!