redash/bin/docker-entrypoint
Josh Bohde e2e8714155
Enable graceful shutdown of rq workers (#5214)
* Enable graceful shutdown of rq workers

* Use `exec` in the `worker` command of the entrypoint to propagate
  the `TERM` signal
* Allow rq processes managed by supervisor to exit without restart on
  expected status codes
* Allow supervisorctl to contact the running supervisor
* Add a `shutdown_worker` command that will send `TERM` to all running
  worker processes and then sleep. This allows orchestration systems
  to initiate a graceful shutdown before sending `SIGTERM` to
  supervisord

* Use Heroku worker as the BaseWorker

This implements a graceful shutdown on SIGTERM, which simplifies
external shutdown procedures.

* Fix imports based upon review

* Remove supervisorctl config
2020-11-05 11:49:45 +02:00

129 lines
2.8 KiB
Bash
Executable File

#!/bin/bash
set -e
scheduler() {
echo "Starting RQ scheduler..."
exec /app/manage.py rq scheduler
}
dev_scheduler() {
echo "Starting dev RQ scheduler..."
exec watchmedo auto-restart --directory=./redash/ --pattern=*.py --recursive -- ./manage.py rq scheduler
}
worker() {
echo "Starting RQ worker..."
export WORKERS_COUNT=${WORKERS_COUNT:-2}
export QUEUES=${QUEUES:-}
exec supervisord -c worker.conf
}
dev_worker() {
echo "Starting dev RQ worker..."
exec watchmedo auto-restart --directory=./redash/ --pattern=*.py --recursive -- ./manage.py rq worker $QUEUES
}
server() {
# Recycle gunicorn workers every n-th request. See http://docs.gunicorn.org/en/stable/settings.html#max-requests for more details.
MAX_REQUESTS=${MAX_REQUESTS:-1000}
MAX_REQUESTS_JITTER=${MAX_REQUESTS_JITTER:-100}
exec /usr/local/bin/gunicorn -b 0.0.0.0:5000 --name redash -w${REDASH_WEB_WORKERS:-4} redash.wsgi:app --max-requests $MAX_REQUESTS --max-requests-jitter $MAX_REQUESTS_JITTER
}
create_db() {
exec /app/manage.py database create_tables
}
help() {
echo "Redash Docker."
echo ""
echo "Usage:"
echo ""
echo "server -- start Redash server (with gunicorn)"
echo "worker -- start a single RQ worker"
echo "dev_worker -- start a single RQ worker with code reloading"
echo "scheduler -- start an rq-scheduler instance"
echo "dev_scheduler -- start an rq-scheduler instance with code reloading"
echo ""
echo "shell -- open shell"
echo "dev_server -- start Flask development server with debugger and auto reload"
echo "debug -- start Flask development server with remote debugger via ptvsd"
echo "create_db -- create database tables"
echo "manage -- CLI to manage redash"
echo "tests -- run tests"
}
tests() {
export REDASH_DATABASE_URL="postgresql://postgres@postgres/tests"
if [ $# -eq 0 ]; then
TEST_ARGS=tests/
else
TEST_ARGS=$@
fi
exec pytest $TEST_ARGS
}
case "$1" in
worker)
shift
worker
;;
server)
shift
server
;;
scheduler)
shift
scheduler
;;
dev_scheduler)
shift
dev_scheduler
;;
dev_worker)
shift
dev_worker
;;
celery_healthcheck)
shift
echo "DEPRECATED: Celery has been replaced with RQ and now performs healthchecks autonomously as part of the 'worker' entrypoint."
;;
dev_server)
export FLASK_DEBUG=1
exec /app/manage.py runserver --debugger --reload -h 0.0.0.0
;;
debug)
export FLASK_DEBUG=1
export REMOTE_DEBUG=1
exec /app/manage.py runserver --debugger --no-reload -h 0.0.0.0
;;
shell)
exec /app/manage.py shell
;;
create_db)
create_db
;;
manage)
shift
exec /app/manage.py $*
;;
tests)
shift
tests $@
;;
help)
shift
help
;;
*)
exec "$@"
;;
esac