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Code Issues Releases Activity

fix: Postfix service should proxy signals received (#3118)

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`postfix start-fg` was not properly responding to signals received to stop. This caused `supervisorctl restart postfix` and `supervisor stop postfix` to not work as expected (_stopping the Postfix master process, before attempting to start the service again_).

Supervisor does not support custom commands for restarting or stopping a service, relying only on managing the process via  a signal. In the past we used a wrapper script to TRAP the signals and trigger commands that way.

However there is a feature which allows us to proxy signals to a different process by referencing a PID file. As Postfix master process creates a pid file when started, we can avoid a wrapper script and the `supervisorctl` functionality works as intended 👍
This commit is contained in:
Brennan Kinney
2023-02-26 19:32:53 +13:00
committed by GitHub
parent ae05e6a7c3
commit 1592698637
1 changed files with 1 additions and 1 deletions
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target/supervisor/conf.d/supervisor-app.conf
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@ -131,7 +131,7 @@ autostart=false
autorestart=true autorestart=true
stdout_logfile=/var/log/supervisor/%(program_name)s.log stdout_logfile=/var/log/supervisor/%(program_name)s.log
stderr_logfile=/var/log/supervisor/%(program_name)s.log stderr_logfile=/var/log/supervisor/%(program_name)s.log
command=postfix start-fg command=/usr/bin/pidproxy /var/spool/postfix/pid/master.pid /usr/sbin/postfix start-fg
[program:changedetector] [program:changedetector]
startsecs=0 startsecs=0