Hi,
I run "nginx" in a container which itself is under systemd-control. All
error messages are put to stderr and the incomming requests are logged in
access.log. To reduce the filesize I want to rotate the access.log.
I see two possibilities to make nginx release the file handle:
* Restart service
* Send signal USR1 or whatever it needs to the service
Does it make sense to send SIGUSR1 (or whatever signal it needs) to
nginx to rotate the logs afterwards or is it ok to restart the whole
service because systemd will buffer all incoming request - though socket
activation is not in use? I'm not sure, what's best for this use case.
Any ideas? Thanks a lot.
/pp
This is the service.unit
[Unit]
Description=Webservice for %I
[Service]
EnvironmentFile=/etc/default/machines/%I.conf
Environment="WWW_DIR=/srv/machines/%I"
Environment="LOG_DIR=/var/log/machines/%I"
Environment="SITES_DIR=/etc/machines/%I/sites-enabled"
Environment="CONFIG_DIR=/etc/machines/%I/other-config"
Environment="SSL_DIR=/etc/ssl/machines/%I"
ExecStart=/usr/bin/systemd-nspawn --register=no --ephemeral
--bind-ro ${SSL_DIR}:/etc/ssl/nginx --bind-ro ${WWW_DIR}:/srv/www
--bind ${LOG_DIR}:/var/log/nginx/ --bind-ro
${SITES_DIR}:/etc/nginx/sites-enabled/ --bind-ro
${CONFIG_DIR}:/etc/nginx/other-config/ -M docker-centos-nginx
/usr/sbin/nginx
KillMode=process
[Install]
WantedBy=network.target
And to make things easier for you to read, here's the expanded exec
start commandline
/usr/bin/systemd-nspawn \
--register=no \
--ephemeral \
--bind-ro /etc/ssl/machines/www_example_org:/etc/ssl/nginx \
--bind-ro /srv/machines/www_example_org:/srv/www \
--bind /var/log/machines/www_example_org:/var/log/nginx/ \
--bind-ro
/etc/machines/www_example_org/sites-enabled:/etc/nginx/sites-enabled/ \
--bind-ro
/etc/machines/www_example_org/other-config:/etc/nginx/other-config/ \
-M docker-centos-nginx \
/usr/sbin/nginx
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