d2f17d76bd
fix haproxy status checks (bsc#947204) OBS-URL: https://build.opensuse.org/request/show/333662 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/haproxy?expand=0&rev=33
248 lines
9.9 KiB
Bash
248 lines
9.9 KiB
Bash
#!/bin/sh
|
|
#
|
|
### BEGIN INIT INFO
|
|
# Provides: haproxy
|
|
# Required-Start: $syslog $remote_fs
|
|
# Should-Start: $time ypbind sendmail
|
|
# Required-Stop: $syslog $remote_fs
|
|
# Should-Stop: $time ypbind sendmail
|
|
# Default-Start: 3 5
|
|
# Default-Stop: 0 1 2 6
|
|
# Short-Description: haproxy
|
|
# Description: Start haproxy a reliable, high performance TCP/HTTP load balancer
|
|
### END INIT INFO
|
|
#
|
|
# Any extensions to the keywords given above should be preceeded by
|
|
# X-VendorTag- (X-UnitedLinux- X-SuSE- for us) according to LSB.
|
|
#
|
|
# Notes on Required-Start/Should-Start:
|
|
# * There are two different issues that are solved by Required-Start
|
|
# and Should-Start
|
|
# (a) Hard dependencies: This is used by the runlevel editor to determine
|
|
# which services absolutely need to be started to make the start of
|
|
# this service make sense. Example: nfsserver should have
|
|
# Required-Start: $portmap
|
|
# Also, required services are started before the dependent ones.
|
|
# The runlevel editor will warn about such missing hard dependencies
|
|
# and suggest enabling. During system startup, you may expect an error,
|
|
# if the dependency is not fulfilled.
|
|
# (b) Specifying the init script ordering, not real (hard) dependencies.
|
|
# This is needed by insserv to determine which service should be
|
|
# started first (and at a later stage what services can be started
|
|
# in parallel). The tag Should-Start: is used for this.
|
|
# It tells, that if a service is available, it should be started
|
|
# before. If not, never mind.
|
|
# * When specifying hard dependencies or ordering requirements, you can
|
|
# use names of services (contents of their Provides: section)
|
|
# or pseudo names starting with a $. The following ones are available
|
|
# according to LSB (1.1):
|
|
# $local_fs all local file systems are mounted
|
|
# (most services should need this!)
|
|
# $remote_fs all remote file systems are mounted
|
|
# (note that /usr may be remote, so
|
|
# many services should Require this!)
|
|
# $syslog system logging facility up
|
|
# $network low level networking (eth card, ...)
|
|
# $named hostname resolution available
|
|
# $netdaemons all network daemons are running
|
|
# The $netdaemons pseudo service has been removed in LSB 1.2.
|
|
# For now, we still offer it for backward compatibility.
|
|
# These are new (LSB 1.2):
|
|
# $time the system time has been set correctly
|
|
# $portmap SunRPC portmapping service available
|
|
# UnitedLinux extensions:
|
|
# $ALL indicates that a script should be inserted
|
|
# at the end
|
|
# * The services specified in the stop tags
|
|
# (Required-Stop/Should-Stop)
|
|
# specify which services need to be still running when this service
|
|
# is shut down. Often the entries there are just copies or a subset
|
|
# from the respective start tag.
|
|
# * Should-Start/Stop are now part of LSB as of 2.0,
|
|
# formerly SUSE/Unitedlinux used X-UnitedLinux-Should-Start/-Stop.
|
|
# insserv does support both variants.
|
|
# * X-UnitedLinux-Default-Enabled: yes/no is used at installation time
|
|
# (%fillup_and_insserv macro in %post of many RPMs) to specify whether
|
|
# a startup script should default to be enabled after installation.
|
|
# It's not used by insserv.
|
|
#
|
|
# Note on runlevels:
|
|
# 0 - halt/poweroff 6 - reboot
|
|
# 1 - single user 2 - multiuser without network exported
|
|
# 3 - multiuser w/ network (text mode) 5 - multiuser w/ network and X11 (xdm)
|
|
#
|
|
# Note on script names:
|
|
# http://www.linuxbase.org/spec/refspecs/LSB_1.3.0/gLSB/gLSB/scrptnames.html
|
|
# A registry has been set up to manage the init script namespace.
|
|
# http://www.lanana.org/
|
|
# Please use the names already registered or register one or use a
|
|
# vendor prefix.
|
|
|
|
|
|
# Check for missing binaries (stale symlinks should not happen)
|
|
# Note: Special treatment of stop for LSB conformance
|
|
HAPROXY_BIN=/usr/sbin/haproxy
|
|
test -x $HAPROXY_BIN || { echo "$HAPROXY_BIN not installed";
|
|
if [ "$1" = "stop" ]; then exit 0;
|
|
else exit 5; fi; }
|
|
HAPROXY_PID="/var/run/haproxy.pid"
|
|
HAPROXY_CONF="/etc/haproxy/haproxy.cfg"
|
|
## Check for existence of needed config file and read it
|
|
#HAPROXY_CONFIG=/etc/sysconfig/haproxy
|
|
#test -r $HAPROXY_CONFIG || { echo "$HAPROXY_CONFIG not existing";
|
|
# if [ "$1" = "stop" ]; then exit 0;
|
|
# else exit 6; fi; }
|
|
#
|
|
## Read config
|
|
#. $HAPROXY_CONFIG
|
|
|
|
# Source LSB init functions
|
|
# providing start_daemon, killproc, pidofproc,
|
|
# log_success_msg, log_failure_msg and log_warning_msg.
|
|
# This is currently not used by UnitedLinux based distributions and
|
|
# not needed for init scripts for UnitedLinux only. If it is used,
|
|
# the functions from rc.status should not be sourced or used.
|
|
#. /lib/lsb/init-functions
|
|
|
|
# Shell functions sourced from /etc/rc.status:
|
|
# rc_check check and set local and overall rc status
|
|
# rc_status check and set local and overall rc status
|
|
# rc_status -v be verbose in local rc status and clear it afterwards
|
|
# rc_status -v -r ditto and clear both the local and overall rc status
|
|
# rc_status -s display "skipped" and exit with status 3
|
|
# rc_status -u display "unused" and exit with status 3
|
|
# rc_failed set local and overall rc status to failed
|
|
# rc_failed <num> set local and overall rc status to <num>
|
|
# rc_reset clear both the local and overall rc status
|
|
# rc_exit exit appropriate to overall rc status
|
|
# rc_active checks whether a service is activated by symlinks
|
|
. /etc/rc.status
|
|
|
|
# Reset status of this service
|
|
rc_reset
|
|
|
|
# Return values acc. to LSB for all commands but status:
|
|
# 0 - success
|
|
# 1 - generic or unspecified error
|
|
# 2 - invalid or excess argument(s)
|
|
# 3 - unimplemented feature (e.g. "reload")
|
|
# 4 - user had insufficient privileges
|
|
# 5 - program is not installed
|
|
# 6 - program is not configured
|
|
# 7 - program is not running
|
|
# 8--199 - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
|
|
#
|
|
# Note that starting an already running service, stopping
|
|
# or restarting a not-running service as well as the restart
|
|
# with force-reload (in case signaling is not supported) are
|
|
# considered a success.
|
|
|
|
function haproxy_check() {
|
|
HAPROXY_CONFIG_CHECK="$($HAPROXY_BIN -c -q -f $HAPROXY_CONF 2>&1)"
|
|
if [ $? -ne 0 ] ; then
|
|
echo "" >&2
|
|
echo "$HAPROXY_CONFIG_CHECK" >&2
|
|
rc_failed
|
|
rc_status -v
|
|
exit 1
|
|
else
|
|
return 0
|
|
fi
|
|
}
|
|
|
|
case "$1" in
|
|
start)
|
|
echo -n "Starting haproxy "
|
|
## Start daemon with startproc(8). If this fails
|
|
## the return value is set appropriately by startproc.
|
|
haproxy_check
|
|
/sbin/startproc $HAPROXY_BIN -D -f $HAPROXY_CONF -p $HAPROXY_PID
|
|
# Remember status and be verbose
|
|
rc_status -v
|
|
;;
|
|
stop)
|
|
echo -n "Shutting down haproxy "
|
|
## Stop daemon with killproc(8) and if this fails
|
|
## killproc sets the return value according to LSB.
|
|
|
|
/sbin/killproc -TERM $HAPROXY_BIN
|
|
|
|
# Remember status and be verbose
|
|
rc_status -v
|
|
;;
|
|
try-restart|condrestart)
|
|
## Do a restart only if the service was active before.
|
|
## Note: try-restart is now part of LSB (as of 1.9).
|
|
## RH has a similar command named condrestart.
|
|
if test "$1" = "condrestart"; then
|
|
echo "${attn} Use try-restart ${done}(LSB)${attn} rather than condrestart ${warn}(RH)${norm}"
|
|
fi
|
|
$0 status
|
|
if test $? = 0; then
|
|
# we us reload here for a graceful restart during update
|
|
$0 reload
|
|
else
|
|
rc_reset # Not running is not a failure.
|
|
fi
|
|
# Remember status and be quiet
|
|
rc_status
|
|
;;
|
|
restart)
|
|
## Stop the service and regardless of whether it was
|
|
## running or not, start it again.
|
|
haproxy_check
|
|
$0 stop
|
|
$0 start
|
|
|
|
# Remember status and be quiet
|
|
rc_status
|
|
;;
|
|
check)
|
|
## Stop the service and regardless of whether it was
|
|
## running or not, start it again.
|
|
echo -n "Checking config of haproxy "
|
|
haproxy_check
|
|
rc_status -v
|
|
;;
|
|
reload|force-reload)
|
|
## Like force-reload, but if daemon does not support
|
|
## signaling, do nothing (!)
|
|
haproxy_check
|
|
# If it supports signaling:
|
|
echo -n "Reload service haproxy "
|
|
$HAPROXY_BIN -p $HAPROXY_PID -D -f $HAPROXY_CONF -sf $(cat $HAPROXY_PID)
|
|
rc_status -v
|
|
;;
|
|
status)
|
|
echo -n "Checking for service haproxy "
|
|
## Check status with checkproc(8), if process is running
|
|
## checkproc will return with exit status 0.
|
|
|
|
# Return value is slightly different for the status command:
|
|
# 0 - service up and running
|
|
# 1 - service dead, but /var/run/ pid file exists
|
|
# 2 - service dead, but /var/lock/ lock file exists
|
|
# 3 - service not running (unused)
|
|
# 4 - service status unknown :-(
|
|
# 5--199 reserved (5--99 LSB, 100--149 distro, 150--199 appl.)
|
|
|
|
# NOTE: checkproc returns LSB compliant status values.
|
|
/sbin/checkproc -p $HAPROXY_PID $HAPROXY_BIN
|
|
# NOTE: rc_status knows that we called this init script with
|
|
# "status" option and adapts its messages accordingly.
|
|
rc_status -v
|
|
;;
|
|
probe)
|
|
## Optional: Probe for the necessity of a reload, print out the
|
|
## argument to this init script which is required for a reload.
|
|
## Note: probe is not (yet) part of LSB (as of 1.9)
|
|
|
|
test $HAPROXY_CONF -nt $HAPROXY_PID && echo reload
|
|
;;
|
|
*)
|
|
echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload|probe}"
|
|
exit 1
|
|
;;
|
|
esac
|
|
rc_exit
|