H. Ozgan netologist

#Rob Pike's 5 Rules of Programming

##Rule 1. You can't tell where a program is going to spend its time. Bottlenecks occur in surprising places, so don't try to second guess and put in a speed hack until you've proven that's where the bottleneck is.

##Rule 2. Measure. Don't tune for speed until you've measured, and even then don't unless one part of the code overwhelms the rest.

##Rule 3. Fancy algorithms are slow when n is small, and n is usually small. Fancy algorithms have big constants. Until you know that n is frequently going to be big, don't get fancy. (Even if n does get big, use Rule 2 first.)

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

General rules

Follow standard conventions.
Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
Boy scout rule. Leave the campground cleaner than you found it.
Always find root cause. Always look for the root cause of a problem.

Design rules

Vault Examples

Examples highligthing different Vault features.

To have a list of valid CLI flags, use

vault -h
vault <FEATURE> -h

 #!/bin/bash
 # Check arguments
 if [ $# -lt 1 ]; then
   echo "Usage: $0 <filename>"
   exit 1
 fi
 FILE="$1"

	<!DOCTYPE html>
	<html lang="tr">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Swimlane Destekli Kanban Board</title>
	<style>
	* {
	box-sizing: border-box;
	margin: 0;

	services:
	zookeeper:
	image: confluentinc/cp-zookeeper:latest
	container_name: zookeeper
	environment:
	ZOOKEEPER_CLIENT_PORT: 2181
	ports:
	- "2181:2181"
	networks:
	- kafka_network

	REDIS_HOST='0.0.0.0'
	REDIS_PORT='6379'
	REDIS_PASSWORD='password'
	REDISINSIGHT_PORT='5540'

	DATABASE_USER=postgres
	DATABASE_PASSWORD=postgres
	DATABASE_NAME=postgres
	PGADMIN_EMAIL=[email protected]
	PGADMIN_PASSWORD=admin

	#!/bin/bash

	# Define your CIDR block
	CIDR_BLOCK="10.0.0.0/16"

	# Create VPC and store the VPC ID
	VPC_ID=$(aws ec2 create-vpc --cidr-block $CIDR_BLOCK --query 'Vpc.VpcId' --output text)

	# Check if VPC_ID is not empty
	if [ -z "$VPC_ID" ]; then

H. Ozgan netologist

General rules

Design rules

Vault Examples

HA Replication