I use GNU screen for running Celery in console mode, but it's a hack I don't want to use on prodution server. I want to know how to daemonize Celery.
I have virtualenv with celery set up. I want to run %venv%/bin/celeryd in daemon mode. I tried ./celeryd start and got:
Unrecognized command line arguments: start What else I should try to run it in daemon mode?
Try this /etc/init.d/celeryd script.
#!/bin/sh -e ### BEGIN INIT INFO # Provides: celeryd # Required-Start: $network $local_fs $remote_fs # Required-Stop: $network $local_fs $remote_fs # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: celery task worker daemon ### END INIT INFO # ============================================ # celeryd - Starts the Celery worker daemon. # ============================================ # # :Usage: /etc/init.d/celeryd {start|stop|force-reload|restart|try-restart|status} # :Configuration file: /etc/default/celeryd # # See http://docs.celeryproject.org/en/latest/tutorials/daemonizing.html#generic-init-scripts # some commands work asyncronously, so we'll wait this many seconds SLEEP_SECONDS=5 DEFAULT_PID_FILE="/var/run/celery/%n.pid" DEFAULT_LOG_FILE="/var/log/celery/%n.log" DEFAULT_LOG_LEVEL="INFO" DEFAULT_NODES="celery" DEFAULT_CELERYD="-m celery.bin.celeryd_detach" CELERY_DEFAULTS=${CELERY_DEFAULTS:-"/etc/default/celeryd"} test -f "$CELERY_DEFAULTS" && . "$CELERY_DEFAULTS" # Set CELERY_CREATE_DIRS to always create log/pid dirs. CELERY_CREATE_DIRS=${CELERY_CREATE_DIRS:-1} CELERY_CREATE_RUNDIR=$CELERY_CREATE_DIRS CELERY_CREATE_LOGDIR=$CELERY_CREATE_DIRS if [ -z "$CELERYD_PID_FILE" ]; then CELERYD_PID_FILE="$DEFAULT_PID_FILE" CELERY_CREATE_RUNDIR=1 fi if [ -z "$CELERYD_LOG_FILE" ]; then CELERYD_LOG_FILE="$DEFAULT_LOG_FILE" CELERY_CREATE_LOGDIR=1 fi CELERYD_LOG_LEVEL=${CELERYD_LOG_LEVEL:-${CELERYD_LOGLEVEL:-$DEFAULT_LOG_LEVEL}} CELERYD_MULTI=${CELERYD_MULTI:-"celeryd-multi"} CELERYD=${CELERYD:-$DEFAULT_CELERYD} CELERYD_NODES=${CELERYD_NODES:-$DEFAULT_NODES} export CELERY_LOADER if [ -n "$2" ]; then CELERYD_OPTS="$CELERYD_OPTS $2" fi CELERYD_LOG_DIR=`dirname $CELERYD_LOG_FILE` CELERYD_PID_DIR=`dirname $CELERYD_PID_FILE` # Extra start-stop-daemon options, like user/group. SUDOCMD="" if [ -n "$CELERYD_USER" ]; then #DAEMON_OPTS="$DAEMON_OPTS --uid=$CELERYD_USER" SUDOCMD="sudo -u $CELERYD_USER " CELERYD_MULTI="$SUDOCMD $CELERYD_MULTI" fi if [ -n "$CELERYD_GROUP" ]; then DAEMON_OPTS="$DAEMON_OPTS --gid=$CELERYD_GROUP" fi if [ -n "$CELERYD_CHDIR" ]; then DAEMON_OPTS="$DAEMON_OPTS --workdir=$CELERYD_CHDIR" fi check_dev_null() { if [ ! -c /dev/null ]; then echo "/dev/null is not a character device!" exit 75 # EX_TEMPFAIL fi } maybe_die() { if [ $? -ne 0 ]; then echo "Exiting: $* (errno $?)" exit 77 # EX_NOPERM fi } create_default_dir() { if [ ! -d "$1" ]; then echo "- Creating default directory: '$1'" mkdir -p "$1" maybe_die "Couldn't create directory $1" echo "- Changing permissions of '$1' to 02755" chmod 02755 "$1" maybe_die "Couldn't change permissions for $1" if [ -n "$CELERYD_USER" ]; then echo "- Changing owner of '$1' to '$CELERYD_USER'" chown "$CELERYD_USER" "$1" maybe_die "Couldn't change owner of $1" fi if [ -n "$CELERYD_GROUP" ]; then echo "- Changing group of '$1' to '$CELERYD_GROUP'" chgrp "$CELERYD_GROUP" "$1" maybe_die "Couldn't change group of $1" fi fi } check_paths() { if [ $CELERY_CREATE_LOGDIR -eq 1 ]; then create_default_dir "$CELERYD_LOG_DIR" fi if [ $CELERY_CREATE_RUNDIR -eq 1 ]; then create_default_dir "$CELERYD_PID_DIR" fi } create_paths() { create_default_dir "$CELERYD_LOG_DIR" create_default_dir "$CELERYD_PID_DIR" } export PATH="${PATH:+$PATH:}/usr/sbin:/sbin" _get_pid_files() { [ ! -d "$CELERYD_PID_DIR" ] && return echo `ls -1 "$CELERYD_PID_DIR"/*.pid 2> /dev/null` } stop_workers () { $CELERYD_MULTI stopwait $CELERYD_NODES --pidfile="$CELERYD_PID_FILE" sleep $SLEEP_SECONDS } start_workers () { $CELERYD_MULTI start $CELERYD_NODES $DAEMON_OPTS \ --pidfile="$CELERYD_PID_FILE" \ --logfile="$CELERYD_LOG_FILE" \ --loglevel="$CELERYD_LOG_LEVEL" \ --cmd="$CELERYD" \ $CELERYD_OPTS & sleep $SLEEP_SECONDS } restart_workers () { $CELERYD_MULTI restart $CELERYD_NODES $DAEMON_OPTS \ --pidfile="$CELERYD_PID_FILE" \ --logfile="$CELERYD_LOG_FILE" \ --loglevel="$CELERYD_LOG_LEVEL" \ --cmd="$CELERYD" \ $CELERYD_OPTS & sleep $SLEEP_SECONDS } check_status () { local pid_files= pid_files=`_get_pid_files` [ -z "$pid_files" ] && echo "celeryd not running (no pidfile)" && exit 1 local one_failed= for pid_file in $pid_files; do local node=`basename "$pid_file" .pid` local pid=`cat "$pid_file"` local cleaned_pid=`echo "$pid" | sed -e 's/[^0-9]//g'` if [ -z "$pid" ] || [ "$cleaned_pid" != "$pid" ]; then echo "bad pid file ($pid_file)" else local failed= kill -0 $pid 2> /dev/null || failed=true if [ "$failed" ]; then echo "celeryd (node $node) (pid $pid) is stopped, but pid file exists!" one_failed=true else echo "celeryd (node $node) (pid $pid) is running..." fi fi done [ "$one_failed" ] && exit 1 || exit 0 } case "$1" in start) check_dev_null check_paths start_workers ;; stop) check_dev_null check_paths stop_workers ;; reload|force-reload) echo "Use restart" ;; status) check_status ;; restart) check_dev_null check_paths restart_workers ;; try-restart) check_dev_null check_paths restart_workers ;; create-paths) check_dev_null create_paths ;; check-paths) check_dev_null check_paths ;; *) echo "Usage: /etc/init.d/celeryd {start|stop|restart|kill|create-paths}" exit 64 # EX_USAGE ;; esac exit 0 My example /etc/default/celeryd for celery in virtual-env.
# Name of nodes to start # here we have a single node CELERYD_NODES="w1" # or we could have three nodes: #CELERYD_NODES="w1 w2 w3" ENV_MY="/home/stoyanov/wsapp" CELERYD="$ENV_MY/bin/celeryd" CELERYD_MULTI="$ENV_MY/bin/celeryd-multi" CELERYCTL="$ENV_MY/bin/celeryctl" # Where to chdir at start. CELERYD_CHDIR="$ENV_MY/wslib/" ENV_PYTHON="$ENV_MY/bin/python" # Extra arguments to celeryd CELERYD_OPTS="--app=PriceProviders --loglevel=WARNING --events --autoreload" #"--time-limit=300 --concurrency=8" # %n will be replaced with the nodename. CELERYD_LOG_FILE="/var/log/celery/%n.log" CELERYD_PID_FILE="/var/run/celery/%n.pid" CELERY_CREATE_RUNDIR=0 CELERY_CREATE_LOGDIR=0 # Workers should run as an unprivileged user. CELERYD_USER="stoyanov" #CELERYD_GROUP="stoyanov"