Celery

celery

# Path /etc/conf.d/celery

# App instance to use
CELERY_APP="application"

# Absolute or relative path to the 'celery' command:
CELERY_BIN="/home/gwhcp/api.gwhcp.dev/venv/bin/celery"

# Queue IP Addres
CELERY_QUEUE_IP="10.2.1.1"

# Where to chdir at start.
CELERYD_CHDIR="/home/gwhcp/api.gwhcp.dev/gwhcp_api/"

# Name of nodes to start
CELERYD_NODES="worker"

# How to call manage.py
CELERYD_MULTI="multi"

# Extra command-line arguments to the worker
CELERYD_OPTS="--time-limit=300 --concurrency=2"

# - %n will be replaced with the first part of the nodename.
# - %I will be replaced with the current child process index
#   and is important when using the prefork pool to avoid race conditions.
CELERYD_PID_FILE="/var/run/celery/%n.pid"
CELERYD_LOG_FILE="/var/log/celery/%n.log"
#CELERYD_LOG_LEVEL="INFO"
CELERYD_LOG_LEVEL="DEBUG"

celery.service

[Unit]
Description=Celery Service
After=network.target

[Service]
Type=forking
User=gwhcp
Group=gwhcp

EnvironmentFile=-/etc/conf.d/celery
WorkingDirectory=/home/gwhcp/api.gwhcp.dev/public/gwhcp_api

ExecStart=/usr/bin/sudo /usr/bin/sh -c '${CELERY_BIN} multi start ${CELERYD_NODES} -Q ${CELERY_QUEUE_IP} -A ${CELERY_APP} \
  --pidfile=${CELERYD_PID_FILE} \
  --logfile=${CELERYD_LOG_FILE} \
  --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'

ExecStop=/usr/bin/sudo /usr/bin/sh -c '${CELERY_BIN} multi stopwait ${CELERYD_NODES} \
  --pidfile=${CELERYD_PID_FILE}'

ExecReload=/usr/bin/sudo /usr/bin/sh -c '${CELERY_BIN} multi restart ${CELERYD_NODES} -Q ${CELERY_QUEUE_IP} -A ${CELERY_APP} \
  --pidfile=${CELERYD_PID_FILE} \
  --logfile=${CELERYD_LOG_FILE} \
  --loglevel=${CELERYD_LOG_LEVEL} ${CELERYD_OPTS}'

[Install]
WantedBy=multi-user.target

worker

# Path /etc/conf.d/worker

# Absolute or relative path to the 'manage.py' command:
MANAGE_BIN="/home/gwhcp/api.gwhcp.dev/public/gwhcp_api/manage.py"

# Absolute or relative path to the 'python3' command:
PYTHON_BIN="/home/gwhcp/api.gwhcp.dev/venv/bin/python"

worker.service

[Unit]
Description=Worker Daemon
After=network.target postgresql.service

[Service]
User=gwhcp
Group=gwhcp

EnvironmentFile=-/etc/conf.d/worker

ExecStart=/usr/bin/sh -c '${PYTHON_BIN} ${MANAGE_BIN} daemon_worker start'
ExecStop=/usr/bin/sh -c '${PYTHON_BIN} ${MANAGE_BIN} daemon_worker stop'
ExecReload=/usr/bin/kill -HUP $MAINPID

Restart=always

[Install]
WantedBy=multi-user.target