Wait for database in docker-entrypoint

.docker/php/docker-entrypoint.sh

@@ -19,6 +19,34 @@ if [ "$1" = 'php-fpm' ] || [ "$1" = 'php' ] || [ "$1" = 'bin/console' ]; then
     if [ "$APP_ENV" = 'prod' ]; then
         php bin/console doctrine:migrations:migrate --allow-no-migration --no-interaction
     fi
+
+    if grep -q DATABASE_URL= .env; then
+        echo "Waiting for database to be ready..."
+        ATTEMPTS_LEFT_TO_REACH_DATABASE=60
+        until [ $ATTEMPTS_LEFT_TO_REACH_DATABASE -eq 0 ] || DATABASE_ERROR=$(php bin/console dbal:run-sql -q "SELECT 1" 2>&1); do
+            if [ $? -eq 255 ]; then
+                # If the Doctrine command exits with 255, an unrecoverable error occurred
+                ATTEMPTS_LEFT_TO_REACH_DATABASE=0
+                break
+            fi
+            sleep 1
+            ATTEMPTS_LEFT_TO_REACH_DATABASE=$((ATTEMPTS_LEFT_TO_REACH_DATABASE - 1))
+            echo "Still waiting for database to be ready... Or maybe the database is not reachable. $ATTEMPTS_LEFT_TO_REACH_DATABASE attempts left."
+        done
+
+        if [ $ATTEMPTS_LEFT_TO_REACH_DATABASE -eq 0 ]; then
+            echo "The database is not up or not reachable:"
+            echo "$DATABASE_ERROR"
+            exit 1
+        else
+            echo "The database is now ready and reachable"
+        fi
+
+        if [ "$( find ./migrations -iname '*.php' -print -quit )" ]; then
+            php bin/console doctrine:migrations:migrate --no-interaction
+        fi
+    fi
+
 fi
 
 exec docker-php-entrypoint "$@"