How can I receive an email when an upstart monitored script respawns?

Question

My upstart config looks something like this

start on filesystem
stop on runlevel S

respawn

exec /path/to/my/script

When this script dies and is respawned I would like to receive an email. Is this possible, or am I using the wrong tool for the job?

Thanks!

Jacob Wan · Answer 1 · 2011-03-08T19:37:43.697

2

You could write a post-start stanza to send e-mail(s).

# An Upstart script to manage the foo service
respawn

post-start script
    echo "my-foo service started at `date +"%F %T.%N"`" | mail -s "My-foo Service Started" me@mydomain.org
    echo "my-foo service started at `date +"%F %T"`" | mail -s "My-foo Service Started" them@theirdomain.org
end script

exec -u foo-user /usr/local/bin/foo

edited Mar 08 '11 at 19:37

answered Mar 08 '11 at 19:09

Jacob Wan

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But that would be run at every start, right? I think the question is only after a respawn, as opposed to a normal start. – David Ammouial Jan 27 '16 at 02:36

score 0 · Answer 2 · answered Feb 17 '11 at 20:34

0

You could add a mail command inside your script or write a wrapper script that does that and then calls your script. Then you'd have Upstart use your wrapper script.

echo 'Script scriptname respawned' | mail -s "respawn notice" foo@example.com

answered Feb 17 '11 at 20:34

Dennis Williamson

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score 0 · Answer 3 · answered Jan 01 '18 at 11:36

Write another job that will start on the stopped event for the job you are monitoring. Inside this job you can check EXIT_CODE and take action accordingly, e.g. :

# /etc/init/service_alert.conf
start on stopped myservice

task

script
    env >> /var/log/service_alert.log
    [ $EXIT_STATUS -ne 0 ] && echo "Env: $(env)" | mail -s "Alert $JOB is down!" page@example.com 
end script

How can I receive an email when an upstart monitored script respawns?

3 Answers3