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Start syslog-ng before runit, and stop after runit.

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When syslog-ng is managed as an runit service, application logs may be
lost during shutdown, when the syslog-ng service stops before the app
exits.

This change uses the my_init.d directory to manage syslog-ng at a lower
runlevel than runit.
This commit is contained in:
Ryan Sundberg
2017-07-01 15:08:08 -07:00
parent b57f08c71f
commit a6bf447f9e
4 changed files with 15 additions and 34 deletions
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10
image/services/syslog-ng/syslog-ng.init Executable file
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@@ -0,0 +1,10 @@
#!/bin/sh
set -e
# If /dev/log is either a named pipe or it was placed there accidentally,
# e.g. because of the issue documented at https://github.com/phusion/baseimage-docker/pull/25,
# then we remove it.
if [ ! -S /dev/log ]; then rm -f /dev/log; fi
if [ ! -S /var/lib/syslog-ng/syslog-ng.ctl ]; then rm -f /var/lib/syslog-ng/syslog-ng.ctl; fi
/etc/init.d/syslog-ng start

32
image/services/syslog-ng/syslog-ng.runit
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@@ -1,32 +0,0 @@
#!/bin/sh
set -e
# If /dev/log is either a named pipe or it was placed there accidentally,
# e.g. because of the issue documented at https://github.com/phusion/baseimage-docker/pull/25,
# then we remove it.
if [ ! -S /dev/log ]; then rm -f /dev/log; fi
if [ ! -S /var/lib/syslog-ng/syslog-ng.ctl ]; then rm -f /var/lib/syslog-ng/syslog-ng.ctl; fi
SYSLOGNG_OPTS=""
[ -r /etc/default/syslog-ng ] && . /etc/default/syslog-ng
case "x$CONSOLE_LOG_LEVEL" in
x[1-8])
dmesg -n $CONSOLE_LOG_LEVEL
;;
x)
;;
*)
echo "CONSOLE_LOG_LEVEL is of unaccepted value."
;;
esac
if [ ! -e /dev/xconsole ]
then
mknod -m 640 /dev/xconsole p
chown root:adm /dev/xconsole
[ -x /sbin/restorecon ] && /sbin/restorecon $XCONSOLE
fi
exec syslog-ng -F -p /var/run/syslog-ng.pid $SYSLOGNG_OPTS

4
image/services/syslog-ng/syslog-ng.sh
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@@ -7,8 +7,8 @@ SYSLOG_NG_BUILD_PATH=/bd_build/services/syslog-ng
## Install a syslog daemon.
$minimal_apt_get_install syslog-ng-core
mkdir /etc/service/syslog-ng
cp $SYSLOG_NG_BUILD_PATH/syslog-ng.runit /etc/service/syslog-ng/run
cp $SYSLOG_NG_BUILD_PATH/syslog-ng.init /etc/my_init.d/syslog-ng.init
cp $SYSLOG_NG_BUILD_PATH/syslog-ng.shutdown /etc/my_init.post_shutdown.d/syslog-ng.shutdown
mkdir -p /var/lib/syslog-ng
cp $SYSLOG_NG_BUILD_PATH/syslog_ng_default /etc/default/syslog-ng
touch /var/log/syslog

3
image/services/syslog-ng/syslog-ng.shutdown Executable file
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@@ -0,0 +1,3 @@
#!/bin/sh
/etc/init.d/syslog-ng stop