Nikita Nyatin yesnik

Kubernetes Commands

Kubectl

It is a kubernetes command line tool. It controls the Kubernetes cluster manager. It allows to run commands against our cluster.

kubectl version - show the client and server version info
kubectl api-resources - show all Kubernetes resources
kubectl run hello-nginx --image=nginx:latest --port=80 - start a nginx pod, let the container expose port 80
kubectl get pod hello-nginx -o wide - show one-liner info about the pod

Elasticsearch Docs

URL for Dev Tools: http://0.0.0.0:5601/app/dev_tools

Add data to Elasticsearch

You can add data to Elasticsearch by sending JSON objects (documents) to Elasticsearch over HTTP. Whether you have structured or unstructured text, numerical data, or geospatial data, Elasticsearch efficiently stores and indexes it in a way that supports fast searches.

Dell Fedora Audio

sudo yum install pulseaudio
pulseaudio --version
pulseaudio 17.0

Reboot.

HeidiSQL Reset Filters, Sorting on Data Tab

If you use HeidiSQL database manager, and can't open Data tab in this program because of sort or filter values, you can clear these saved values by editing Windows Registry:

Start regedit.exe
Delete the key/folder for the table, e.g.: HKEY_CURRENT_USER\Software\HeidiSQL\Servers\MyServer\databasename|tablename

Sheldon CRM Tasks

Dear programmer, I need your help to build a simple CRM named Sheldon CRM. Here you can find tasks that will help us to create it. You can use any programming language you want. All I want is a website with my Sheldon CRM.

1. Store partners

I have several partners. On our CRM website I need a page for creating new partners. Each partner has name and email. Also I need a page for editing each partner's information and a page where I can browse all partners' info.

How to modify logic of software

You have a client with a website. Client wants to add new feature or fix some bug.

Initial analysis

Listen carefully what client needs
Describe current logic that we need to modify. If logic is complex draw scheme on the sheet of paper. Don't describe details yet, forget about table names, class' names on this step.

Docker Compose

Docker compose is a tool that is used for defining and running multi-container Docker apps in an easy way. It provides docker-compose.yml configuration file that can be used to bring up an app and the suite of services it depends on with just one command.

docker compose up - start all services from docker-compose.yml
docker compose up db - start only service db
docker compose up --build - rebuild all images and run containers
docker compose restart db - restart db service

	/**
	* Payment page universal handler
	*/
	(function ($) {
	jQuery.ajaxSettings.traditional = true; // https://forum.jquery.com/topic/jquery-post-1-4-1-is-appending-to-vars-when-posting-from-array-within-array

	var settings = {
	// name for orderId parameter
	orderIdParam:"mdOrder",
	language:"ru",

	# Free e-books: http://www.gutenberg.org/
	file_name = 'dickens_charles_great_expectations.txt'

	with open(file_name) as file_object:
	words_count = {}

	for line in file_object.readlines():
	line_words = line.split(' ')
	for word_raw in line_words:
	word = word_raw.strip().lower()

	<?php

	/**
	* This class allows us to run only one instance of the process
	*
	* Example:
	*
	* $uniqueProcess = new UniqueProcess('/var/tmp/some_process_name.lock');
	* if (!$uniqueProcess->begin()) {
	* die();