potiuk commented on a change in pull request #7832: Add production image support URL: https://github.com/apache/airflow/pull/7832#discussion_r401826532
########## File path: entrypoint.sh ########## @@ -0,0 +1,122 @@ +#!/usr/bin/env bash +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# Might be empty +AIRFLOW_COMMAND="${1}" + +set -euo pipefail + +function verify_db_connection { + DB_URL="${1}" + + DB_CHECK_MAX_COUNT=${MAX_DB_CHECK_COUNT:=10} + DB_CHECK_SLEEP_TIME=${DB_CHECK_SLEEP_TIME:=2} + + export DETECTED_DB_BACKEND="" + export DETECTED_DB_USER="" + export DETECTED_DB_HOST="" + export DETECTED_DB_PORT="" + export DETECTED_DB_SCHEMA="" + export DETECTED_DB_PARAMS="" + + if [[ ${DB_URL} != sqlite* ]]; then + # Auto-detect DB parameters + [[ ${DB_URL} =~ ([^:]*)://([^@/]*)@?([^/:]*):?([0-9]*)/([^\?]*)\??(.*) ]] && \ + DETECTED_DB_BACKEND=${BASH_REMATCH[1]} && + DETECTED_DB_USER=${BASH_REMATCH[2]} && + DETECTED_DB_HOST=${BASH_REMATCH[3]} && + DETECTED_DB_PORT=${BASH_REMATCH[4]} && + DETECTED_DB_SCHEMA=${BASH_REMATCH[5]} && + DETECTED_DB_PARAMS=${BASH_REMATCH[6]} + + echo DB_BACKEND="${DB_BACKEND:=${DETECTED_DB_BACKEND}}" + + if [[ -z "${DETECTED_DB_PORT}" ]]; then + if [[ ${DB_BACKEND} == "postgres"* ]]; then + DETECTED_DB_PORT=5432 + elif [[ ${DB_BACKEND} == "mysql"* ]]; then + DETECTED_DB_PORT=3306 + fi + fi + + DETECTED_DB_HOST=${DETECTED_DB_HOST:="localhost"} + + # Allow the DB parameters to be overridden by environment variable + echo DB_HOST="${DB_HOST:=${DETECTED_DB_HOST}}" + echo DB_PORT="${DB_PORT:=${DETECTED_DB_PORT}}" + + while true + do + set +e + LAST_CHECK_RESULT=$(nc -zvv "${DB_HOST}" "${DB_PORT}" >/dev/null 2>&1) + RES=$? + set -e + if [[ ${RES} == 0 ]]; then + echo + break + else + echo -n "." + DB_CHECK_MAX_COUNT=$((DB_CHECK_MAX_COUNT-1)) + fi + if [[ ${DB_CHECK_MAX_COUNT} == 0 ]]; then + echo + echo "ERROR! Maximum number of retries (${DB_CHECK_MAX_COUNT}) reached while checking ${DB_BACKEND} db. Exiting" + echo + break + else + sleep "${DB_CHECK_SLEEP_TIME}" + fi + done + if [[ ${RES} != 0 ]]; then + echo " ERROR: ${BACKEND} db could not be reached!" + echo + echo "${LAST_CHECK_RESULT}" + echo + export EXIT_CODE=${RES} + fi + fi +} + +# if no DB configured - use sqlite db by default +AIRFLOW__CORE__SQL_ALCHEMY_CONN="${AIRFLOW__CORE__SQL_ALCHEMY_CONN:="sqlite:///${AIRFLOW_HOME}/airflow.db"}" + +verify_db_connection "${AIRFLOW__CORE__SQL_ALCHEMY_CONN}" + +AIRFLOW__CELERY__BROKER_URL=${AIRFLOW__CELERY__BROKER_URL:=} + +if [[ -n ${AIRFLOW__CELERY__BROKER_URL} ]] && \ + [[ ${AIRFLOW_COMMAND} =~ ^(scheduler|worker|flower)$ ]]; then + verify_db_connection "${AIRFLOW__CELERY__BROKER_URL}" +fi + +if [[ ${AIRFLOW__CORE__SQL_ALCHEMY_CONN} == sqlite* ]] && \ + [[ ${AIRFLOW_COMMAND} =~ ^(scheduler|worker|webserver)$ ]] || \ + [[ ${DB_RESET:="false"} == "true" ]]; then + if [[ ${AIRFLOW_VERSION} == *1.10* ]]; then + airflow reset_db -y >/dev/null 2>&1 Review comment: On the other hand. Indeed it is wildly dangerous. I remove it completely. It's a nuance. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
