310 lines
8.1 KiB
Bash
Executable File
310 lines
8.1 KiB
Bash
Executable File
#!/bin/bash
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# =========================================================
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# celerybeat - Starts the Celery periodic task scheduler.
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# =========================================================
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#
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# :Usage: /etc/init.d/celerybeat {start|stop|force-reload|restart|try-restart|status}
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# :Configuration file: /etc/default/celerybeat or /etc/default/celeryd
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#
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# See http://docs.celeryproject.org/en/latest/tutorials/daemonizing.html#generic-init-scripts
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### BEGIN INIT INFO
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# Provides: celerybeat
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# Required-Start: $network $local_fs $remote_fs
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# Required-Stop: $network $local_fs $remote_fs
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: celery periodic task scheduler
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# Description: Controls the Celery periodic task scheduler.
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### END INIT INFO
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# Cannot use set -e/bash -e since the kill -0 command will abort
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# abnormally in the absence of a valid process ID.
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#set -e
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. /lib/lsb/init-functions
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VERSION=10.0
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echo "celery init v${VERSION}."
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if [ $(id -u) -ne 0 ]; then
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echo "Error: This program can only be used by the root user."
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echo " Unpriviliged users must use 'celery beat --detach'"
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exit 1
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fi
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# May be a runlevel symlink (e.g. S02celeryd)
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if [ -L "$0" ]; then
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SCRIPT_FILE=$(readlink "$0")
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else
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SCRIPT_FILE="$0"
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fi
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SCRIPT_NAME="$(basename "$SCRIPT_FILE")"
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# /etc/init.d/celerybeat: start and stop the celery periodic task scheduler daemon.
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# Make sure executable configuration script is owned by root
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_config_sanity() {
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local path="$1"
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local owner=$(ls -ld "$path" | awk '{print $3}')
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local iwgrp=$(ls -ld "$path" | cut -b 6)
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local iwoth=$(ls -ld "$path" | cut -b 9)
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if [ "$(id -u $owner)" != "0" ]; then
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echo "Error: Config script '$path' must be owned by root!"
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echo
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echo "Resolution:"
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echo "Review the file carefully and make sure it has not been "
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echo "modified with mailicious intent. When sure the "
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echo "script is safe to execute with superuser privileges "
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echo "you can change ownership of the script:"
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echo " $ sudo chown root '$path'"
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exit 1
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fi
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if [ "$iwoth" != "-" ]; then # S_IWOTH
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echo "Error: Config script '$path' cannot be writable by others!"
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echo
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echo "Resolution:"
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echo "Review the file carefully and make sure it has not been "
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echo "modified with malicious intent. When sure the "
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echo "script is safe to execute with superuser privileges "
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echo "you can change the scripts permissions:"
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echo " $ sudo chmod 640 '$path'"
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exit 1
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fi
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if [ "$iwgrp" != "-" ]; then # S_IWGRP
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echo "Error: Config script '$path' cannot be writable by group!"
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echo
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echo "Resolution:"
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echo "Review the file carefully and make sure it has not been "
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echo "modified with malicious intent. When sure the "
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echo "script is safe to execute with superuser privileges "
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echo "you can change the scripts permissions:"
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echo " $ sudo chmod 640 '$path'"
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exit 1
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fi
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}
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scripts=""
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if test -f /etc/default/celeryd; then
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scripts="/etc/default/celeryd"
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_config_sanity /etc/default/celeryd
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. /etc/default/celeryd
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fi
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EXTRA_CONFIG="/etc/default/${SCRIPT_NAME}"
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if test -f "$EXTRA_CONFIG"; then
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scripts="$scripts, $EXTRA_CONFIG"
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_config_sanity "$EXTRA_CONFIG"
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. "$EXTRA_CONFIG"
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fi
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echo "Using configuration: $scripts"
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CELERY_BIN=${CELERY_BIN:-"celery"}
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DEFAULT_USER="celery"
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DEFAULT_PID_FILE="/var/run/celery/beat.pid"
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DEFAULT_LOG_FILE="/var/log/celery/beat.log"
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DEFAULT_LOG_LEVEL="INFO"
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DEFAULT_CELERYBEAT="$CELERY_BIN beat"
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DEFAULT_ENABLED="false"
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ENABLED=${ENABLED:-$DEFAULT_ENABLED}
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if [ "$ENABLED" != "true" ]; then
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echo "celerybeat daemon disabled - see $scripts."
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exit 0
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fi
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CELERYBEAT=${CELERYBEAT:-$DEFAULT_CELERYBEAT}
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CELERYBEAT_LOG_LEVEL=${CELERYBEAT_LOG_LEVEL:-${CELERYBEAT_LOGLEVEL:-$DEFAULT_LOG_LEVEL}}
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# Sets --app argument for CELERY_BIN
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CELERY_APP_ARG=""
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if [ ! -z "$CELERY_APP" ]; then
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CELERY_APP_ARG="--app=$CELERY_APP"
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fi
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CELERYBEAT_USER=${CELERYBEAT_USER:-${CELERYD_USER:-$DEFAULT_USER}}
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# Set CELERY_CREATE_DIRS to always create log/pid dirs.
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CELERY_CREATE_DIRS=${CELERY_CREATE_DIRS:-0}
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CELERY_CREATE_RUNDIR=$CELERY_CREATE_DIRS
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CELERY_CREATE_LOGDIR=$CELERY_CREATE_DIRS
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if [ -z "$CELERYBEAT_PID_FILE" ]; then
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CELERYBEAT_PID_FILE="$DEFAULT_PID_FILE"
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CELERY_CREATE_RUNDIR=1
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fi
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if [ -z "$CELERYBEAT_LOG_FILE" ]; then
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CELERYBEAT_LOG_FILE="$DEFAULT_LOG_FILE"
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CELERY_CREATE_LOGDIR=1
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fi
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export CELERY_LOADER
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CELERYBEAT_OPTS="$CELERYBEAT_OPTS -f $CELERYBEAT_LOG_FILE -l $CELERYBEAT_LOG_LEVEL"
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if [ -n "$2" ]; then
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CELERYBEAT_OPTS="$CELERYBEAT_OPTS $2"
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fi
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CELERYBEAT_LOG_DIR=`dirname $CELERYBEAT_LOG_FILE`
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CELERYBEAT_PID_DIR=`dirname $CELERYBEAT_PID_FILE`
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# Extra start-stop-daemon options, like user/group.
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CELERYBEAT_CHDIR=${CELERYBEAT_CHDIR:-$CELERYD_CHDIR}
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if [ -n "$CELERYBEAT_CHDIR" ]; then
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DAEMON_OPTS="$DAEMON_OPTS --workdir=$CELERYBEAT_CHDIR"
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fi
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export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
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check_dev_null() {
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if [ ! -c /dev/null ]; then
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echo "/dev/null is not a character device!"
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exit 75 # EX_TEMPFAIL
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fi
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}
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maybe_die() {
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if [ $? -ne 0 ]; then
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echo "Exiting: $*"
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exit 77 # EX_NOPERM
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fi
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}
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create_default_dir() {
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if [ ! -d "$1" ]; then
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echo "- Creating default directory: '$1'"
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mkdir -p "$1"
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maybe_die "Couldn't create directory $1"
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echo "- Changing permissions of '$1' to 02755"
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chmod 02755 "$1"
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maybe_die "Couldn't change permissions for $1"
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if [ -n "$CELERYBEAT_USER" ]; then
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echo "- Changing owner of '$1' to '$CELERYBEAT_USER'"
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chown "$CELERYBEAT_USER" "$1"
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maybe_die "Couldn't change owner of $1"
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fi
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if [ -n "$CELERYBEAT_GROUP" ]; then
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echo "- Changing group of '$1' to '$CELERYBEAT_GROUP'"
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chgrp "$CELERYBEAT_GROUP" "$1"
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maybe_die "Couldn't change group of $1"
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fi
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fi
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}
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check_paths() {
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if [ $CELERY_CREATE_LOGDIR -eq 1 ]; then
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create_default_dir "$CELERYBEAT_LOG_DIR"
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fi
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if [ $CELERY_CREATE_RUNDIR -eq 1 ]; then
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create_default_dir "$CELERYBEAT_PID_DIR"
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fi
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}
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create_paths () {
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create_default_dir "$CELERYBEAT_LOG_DIR"
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create_default_dir "$CELERYBEAT_PID_DIR"
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}
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wait_pid () {
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pid=$1
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forever=1
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i=0
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while [ $forever -gt 0 ]; do
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kill -0 $pid 1>/dev/null 2>&1
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if [ $? -eq 1 ]; then
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echo "OK"
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forever=0
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else
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kill -TERM "$pid"
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i=$((i + 1))
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if [ $i -gt 60 ]; then
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echo "ERROR"
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echo "Timed out while stopping (30s)"
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forever=0
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else
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sleep 0.5
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fi
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fi
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done
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}
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stop_beat () {
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echo -n "Stopping ${SCRIPT_NAME}... "
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if [ -f "$CELERYBEAT_PID_FILE" ]; then
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wait_pid $(cat "$CELERYBEAT_PID_FILE")
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else
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echo "NOT RUNNING"
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fi
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}
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_chuid () {
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su "$CELERYBEAT_USER" -c "$CELERYBEAT $*"
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}
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start_beat () {
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echo "Starting ${SCRIPT_NAME}..."
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_chuid $CELERY_APP_ARG $CELERYBEAT_OPTS $DAEMON_OPTS --detach \
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--pidfile="$CELERYBEAT_PID_FILE"
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}
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status () {
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pid=$(cat "$CELERYBEAT_PID_FILE")
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kill -0 $pid 1>/dev/null 2>&1
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if [ $? -eq 0 ]; then
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echo "celerybeat running"
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else
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echo "celerybeat not running"
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exit 1
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fi
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}
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case "$1" in
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start)
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check_dev_null
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check_paths
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start_beat
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;;
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stop)
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check_paths
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stop_beat
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;;
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reload|force-reload)
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echo "Use start+stop"
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;;
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restart)
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echo "Restarting celery periodic task scheduler"
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check_paths
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stop_beat
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check_dev_null
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start_beat
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;;
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create-paths)
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check_dev_null
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create_paths
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;;
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check-paths)
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check_dev_null
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check_paths
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;;
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status)
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status
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;;
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*)
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echo "Usage: /etc/init.d/${SCRIPT_NAME} {start|stop|restart|create-paths|status}"
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exit 64 # EX_USAGE
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;;
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esac
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exit 0
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