Add a wait check for mysql connectivity

docker-entrypoint.sh

@@ -6,6 +6,10 @@ if [ "${1#-}" != "$1" ]; then
         set -- apache2-foreground "$@"
 fi
 
+ while ! curl mysql:3306; do
+        sleep 1
+ done
+
 php artisan cache:clear
 php artisan config:cache
 php artisan route:cache