pydevops

references

• https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands
• how it works
• https://medium.com/@bingolbalihasan/how-does-kubectl-work-writing-custom-kubectl-commands-da86e5d49c74

cheatsheet & tips

• https://kubernetes.io/docs/user-guide/kubectl-cheatsheet/
• https://github.com/devoriales/kubectl-cheatsheet
• https://learncloudnative.com/blog/2022-05-10-kubectl-tips
• https://itnext.io/tips-tricks-for-cka-ckad-and-cks-exams-cc9dade1f76d

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

davidebbo

<?xml version="1.0" encoding="utf-8"?>
<!--
     This configuration file is required if iisnode is used to run node processes behind
     IIS or IIS Express.  For more information, visit:

     https://github.com/tjanczuk/iisnode/blob/master/src/samples/configuration/web.config
-->

<configuration>
  <system.webServer>

apolloclark

Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

PurpleBooth

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

pilwon

Usage

1. npm install babel-loader imports-loader webpack --save
2. Create webpack.config.js
3. Move index.ios.js to src/index.ios.jsx
4. webpack --watch

Example

src/index.ios.jsx

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

erans

var crypto = require("crypto")

function encrypt(key, data) {
        var cipher = crypto.createCipher('aes-256-cbc', key);
        var crypted = cipher.update(data, 'utf-8', 'hex');
        crypted += cipher.final('hex');

        return crypted;
}