posthog/bin/plugin-server

#!/bin/bash

# Keys to export from django settings.py
KEYS="DATABASE_URL REDIS_URL PLUGINS_CELERY_QUEUE CELERY_DEFAULT_QUEUE KAFKA_HOSTS KAFKA_ENABLED BASE_DIR PLUGINS_RELOAD_PUBSUB_CHANNEL"

# Export $CONFIG to posthog-plugin-server
export CONFIG=`python manage.py print_settings --format json --indent 0 $KEYS 2> /dev/null | tr -d '\n' | sed 's/\n$//'`

# On _Heroku_, the $WEB_CONCURRENCY env contains suggested number of workers per dyno.
# Unfortunately we are running a NodeJS app, yet get the value for the "python" buildpack.
# Thus instead of using this env directly, calculate the real concurrency from $DYNO_RAM.
# Python: https://github.com/heroku/heroku-buildpack-python/blob/main/vendor/WEB_CONCURRENCY.sh
# NodeJS: https://devcenter.heroku.com/articles/node-concurrency#common-runtime
if [[ -n "${DYNO_RAM}" ]]; then
  # One worker for 512MB of RAM, rounding up
  export WORKER_CONCURRENCY=$(( ($DYNO_RAM - 1) / 512 + 1 ))
fi

cd plugins

yarn --frozen-lockfile --verbose

if [ $? -ne 0 ]; then
    echo "Yarn failed!"
    exit 1
fi

while true; do
  # Run: posthog-plugin-server
  yarn start
  echo ""
  echo "🔴 Plugin server crashed!"
  echo "⌛️ Waiting 2 seconds before restarting!"
  echo ""
  sleep 2
done