为root用户启动celery创建的脚本,该脚本的拥有者与使用者都必须是root .使用方法为 /etc/init.d/celeryd [start]|[stop]|[kill] 需增加两个文件 /etc/default/celeryd(配置脚本) 和 /etc/init.d/celeryd (启动脚本) 1.编辑 /etc/default/celeryd :
# Names of nodes to start # most people will only start one node: CELERYD_NODES="worker1" # but you can also start multiple and configure settings # for each in CELERYD_OPTS #CELERYD_NODES="worker1 worker2 worker3" # alternatively, you can specify the number of nodes to start: #CELERYD_NODES=10 # Absolute or relative path to the ‘celery‘ command:如果是虚拟环境中的celery则应写作 /opt/virtualenv/bin/celery CELERY_BIN="/usr/local/bin/celery" #CELERY_BIN="/virtualenvs/def/bin/celery" # App instance to use # comment out this line if you don‘t use an app ,在diango中实例化celery app时的name CELERY_APP="proj" # or fully qualified: #CELERY_APP="proj.tasks:app" # Where to chdir at start.对于django项目来说,用于创建celery app的文件celery.py的目录为 /opt/Myproject/Myproject/celery.py ,该目录用于查找celery app CELERYD_CHDIR="/opt/Myproject/" # Extra command-line arguments to the worker CELERYD_OPTS="--time-limit=300 --concurrency=8" # Configure node-specific settings by appending node name to arguments: #CELERYD_OPTS="--time-limit=300 -c 8 -c:worker2 4 -c:worker3 2 -Ofair:worker1" # Set logging level to DEBUG #CELERYD_LOG_LEVEL="DEBUG" # %n will be replaced with the first part of the nodename. CELERYD_LOG_FILE="/var/log/celery/%n%I.log" CELERYD_PID_FILE="/var/run/celery/%n.pid" # Workers should run as an unprivileged user. # You need to create this user manually (or you can choose # a user/group combination that already exists (e.g., nobody).这里的用户名,用于运行celery的非root user 与 用户组 CELERYD_USER="celery" CELERYD_GROUP="celery" # If enabled pid and log directories will be created if missing, # and owned by the userid/group configured. CELERY_CREATE_DIRS=1
2.将下面的celeryd 文件放入目录/etc/init.d/中
#!/bin/sh -e # ============================================ # 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/userguide/daemonizing.html ### BEGIN INIT INFO # Provides: celeryd # Required-Start: $network $local_fs $remote_fs # Required-Stop: $network $local_fs $remote_fs # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: celery task worker daemon ### END INIT INFO # # # To implement separate init scripts, copy this script and give it a different # name: # I.e., if my new application, "little-worker" needs an init, I # should just use: # # cp /etc/init.d/celeryd /etc/init.d/little-worker # # You can then configure this by manipulating /etc/default/little-worker. # VERSION=10.1 echo "celery init v${VERSION}." if [ $(id -u) -ne 0 ]; then echo "Error: This program can only be used by the root user." echo " Unprivileged users must use the ‘celery multi‘ utility, " echo " or ‘celery worker --detach‘." exit 1 fi origin_is_runlevel_dir () { set +e dirname $0 | grep -q "/etc/rc.\.d" echo $? } # Can be a runlevel symlink (e.g. S02celeryd) if [ $(origin_is_runlevel_dir) -eq 0 ]; then SCRIPT_FILE=$(readlink "$0") else SCRIPT_FILE="$0" fi SCRIPT_NAME="$(basename "$SCRIPT_FILE")" DEFAULT_USER="celery" DEFAULT_PID_FILE="/var/run/celery/%n.pid" DEFAULT_LOG_FILE="/var/log/celery/%n.log" DEFAULT_LOG_LEVEL="INFO" DEFAULT_NODES="celery" DEFAULT_CELERYD="-m celery worker --detach" CELERY_DEFAULTS=${CELERY_DEFAULTS:-"/etc/default/${SCRIPT_NAME}"} # Make sure executable configuration script is owned by root _config_sanity() { local path="$1" local owner=$(ls -ld "$path" | awk ‘{print $3}‘) local iwgrp=$(ls -ld "$path" | cut -b 6) local iwoth=$(ls -ld "$path" | cut -b 9) if [ "$(id -u $owner)" != "0" ]; then echo "Error: Config script ‘$path‘ must be owned by root!" echo echo "Resolution:" echo "Review the file carefully and make sure it has not been " echo "modified with mailicious intent. When sure the " echo "script is safe to execute with superuser privileges " echo "you can change ownership of the script:" echo " $ sudo chown root ‘$path‘" exit 1 fi if [ "$iwoth" != "-" ]; then # S_IWOTH echo "Error: Config script ‘$path‘ cannot be writable by others!" echo echo "Resolution:" echo "Review the file carefully and make sure it has not been " echo "modified with malicious intent. When sure the " echo "script is safe to execute with superuser privileges " echo "you can change the scripts permissions:" echo " $ sudo chmod 640 ‘$path‘" exit 1 fi if [ "$iwgrp" != "-" ]; then # S_IWGRP echo "Error: Config script ‘$path‘ cannot be writable by group!" echo echo "Resolution:" echo "Review the file carefully and make sure it has not been " echo "modified with malicious intent. When sure the " echo "script is safe to execute with superuser privileges " echo "you can change the scripts permissions:" echo " $ sudo chmod 640 ‘$path‘" exit 1 fi } if [ -f "$CELERY_DEFAULTS" ]; then _config_sanity "$CELERY_DEFAULTS" echo "Using config script: $CELERY_DEFAULTS" . "$CELERY_DEFAULTS" fi # Sets --app argument for CELERY_BIN CELERY_APP_ARG="" if [ ! -z "$CELERY_APP" ]; then CELERY_APP_ARG="--app=$CELERY_APP" fi CELERYD_USER=${CELERYD_USER:-$DEFAULT_USER} # Set CELERY_CREATE_DIRS to always create log/pid dirs. CELERY_CREATE_DIRS=${CELERY_CREATE_DIRS:-0} CELERY_CREATE_RUNDIR=$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}} CELERY_BIN=${CELERY_BIN:-"celery"} CELERYD_MULTI=${CELERYD_MULTI:-"$CELERY_BIN multi"} CELERYD_NODES=${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 $CELERYD_PID_FILE` # Extra start-stop-daemon options, like user/group. if [ -n "$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_pidfiles () { # note: multi < 3.1.14 output to stderr, not stdout, hence the redirect. ${CELERYD_MULTI} expand "${CELERYD_PID_FILE}" ${CELERYD_NODES} 2>&1 } _get_pids() { found_pids=0 my_exitcode=0 for pidfile in $(_get_pidfiles); do local pid=`cat "$pidfile"` local cleaned_pid=`echo "$pid" | sed -e ‘s/[^0-9]//g‘` if [ -z "$pid" ] || [ "$cleaned_pid" != "$pid" ]; then echo "bad pid file ($pidfile)" one_failed=true my_exitcode=1 else found_pids=1 echo "$pid" fi if [ $found_pids -eq 0 ]; then echo "${SCRIPT_NAME}: All nodes down" exit $my_exitcode fi done } _chuid () { su "$CELERYD_USER" -c "$CELERYD_MULTI $*" } start_workers () { if [ ! -z "$CELERYD_ULIMIT" ]; then ulimit $CELERYD_ULIMIT fi _chuid $* start $CELERYD_NODES $DAEMON_OPTS --pidfile="$CELERYD_PID_FILE" --logfile="$CELERYD_LOG_FILE" --loglevel="$CELERYD_LOG_LEVEL" $CELERY_APP_ARG $CELERYD_OPTS } dryrun () { (C_FAKEFORK=1 start_workers --verbose) } stop_workers () { _chuid stopwait $CELERYD_NODES --pidfile="$CELERYD_PID_FILE" } restart_workers () { _chuid restart $CELERYD_NODES $DAEMON_OPTS --pidfile="$CELERYD_PID_FILE" --logfile="$CELERYD_LOG_FILE" --loglevel="$CELERYD_LOG_LEVEL" $CELERY_APP_ARG $CELERYD_OPTS } kill_workers() { _chuid kill $CELERYD_NODES --pidfile="$CELERYD_PID_FILE" } restart_workers_graceful () { echo "WARNING: Use with caution in production" echo "The workers will attempt to restart, but they may not be able to." local worker_pids= worker_pids=`_get_pids` [ "$one_failed" ] && exit 1 for worker_pid in $worker_pids; do local failed= kill -HUP $worker_pid 2> /dev/null || failed=true if [ "$failed" ]; then echo "${SCRIPT_NAME} worker (pid $worker_pid) could not be restarted" one_failed=true else echo "${SCRIPT_NAME} worker (pid $worker_pid) received SIGHUP" fi done [ "$one_failed" ] && exit 1 || exit 0 } check_status () { my_exitcode=0 found_pids=0 local one_failed= for pidfile in $(_get_pidfiles); do if [ ! -r $pidfile ]; then echo "${SCRIPT_NAME} down: no pidfiles found" one_failed=true break fi local node=`basename "$pidfile" .pid` local pid=`cat "$pidfile"` local cleaned_pid=`echo "$pid" | sed -e ‘s/[^0-9]//g‘` if [ -z "$pid" ] || [ "$cleaned_pid" != "$pid" ]; then echo "bad pid file ($pidfile)" one_failed=true else local failed= kill -0 $pid 2> /dev/null || failed=true if [ "$failed" ]; then echo "${SCRIPT_NAME} (node $node) (pid $pid) is down, but pidfile exists!" one_failed=true else echo "${SCRIPT_NAME} (node $node) (pid $pid) is up..." fi fi done [ "$one_failed" ] && exit 1 || exit 0 } case "$1" in start) check_dev_null check_paths start_workers ;; stop) check_dev_null check_paths stop_workers ;; reload|force-reload) echo "Use restart" ;; status) check_status ;; restart) check_dev_null check_paths restart_workers ;; graceful) check_dev_null restart_workers_graceful ;; kill) check_dev_null kill_workers ;; dryrun) check_dev_null dryrun ;; try-restart) check_dev_null check_paths restart_workers ;; create-paths) check_dev_null create_paths ;; check-paths) check_dev_null check_paths ;; *) echo "Usage: /etc/init.d/${SCRIPT_NAME} {start|stop|restart|graceful|kill|dryrun|create-paths}" exit 64 # EX_USAGE ;; esac exit 0
即可; 对于非root 用户 可以直接执行下面语句 (celery从安全的角度是默认不允许root执行的)
$ celery multi start worker1 -A proj --pidfile="$HOME/run/celery/%n.pid" --logfile="$HOME/log/celery/%n%I.log" $ celery multi restart worker1 -A proj --logfile="$HOME/log/celery/%n%I.log" --pidfile="$HOME/run/celery/%n.pid $ celery multi stopwait worker1 --pidfile="$HOME/run/celery/%n.pid"
原文地址:https://www.cnblogs.com/Ting-light/p/9948201.html
时间: 2024-10-10 09:00:39