What you will learn today 🦦: what is Traefik and why I decisively recommend to use it with Docker Swarm how to show custom error page if Traefik returns 404 (service not found) How I met Traefik 😁 Traefik is a top modern reverse proxy and load balancer. I started to use it from major version 1. At that moment, I already had Docker Swarm cluster, which I began to prepare for production use, and only one thing in the coherent picture has been left: “External Load Balancer”....

Task description on Codesignal I’ve spend decent amount of time in order to figure out that I don’t need any string manipulation in this task 😅. My first try was adding missing zeros to the beginning of number slot, convert int to str and back, then the resulting string split by 4 but no luck … It turned out that is simple math 😀 I wanna share my solution with detailed comments ⬇️ (Time complexity O(n) )...

1 Add tools specifically to php monitoring in order to answer the questions ⬇️ what kind of php scripts were called most of the time? what kind of php scripts took the most CPU? We choose open-source tool Pinba. php pinba extension sends data over UDP in protobuf format. pinba server accumulates and processes data and send it to data storage in your choice. (In our case it is Clickhouse DB)...

Into 💆 Pre-conditions: macOS Sierra Docker CE Version 17.06.2-ce-mac27 PHP 7.1.8 XDebug v2.5.0 PhpStorm 2017.2 If you want to set up remote debug from your container you have 2 options: xdebug.remote_host = %host_ip% %host_ip% — The IP of the machine running your IDE. It’s assumed on the same host as Docker. xdebug.remote_connect_back = on checks $_SERVER[‘HTTP_X_FORWARDED_FOR’] and $_SERVER[‘REMOTE_ADDR’] variables to find out which IP address to use. You cannot use xdebug....