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Amazon Web Services (AWS) Beginners Study Plan

Week 1: Introduction to AWS and IAM Basics

---

Objective: Understand AWS fundamentals, services, and the security framework.

1. Create Free Tier Account

• Goal: Set up your AWS Free Tier account to get hands-on access to AWS resources.
• AWS Free Tier Signup

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apiVersion: v1
kind: Namespace
metadata:
  name: bluegreen
  labels:
    type: dev
---
apiVersion: apps/v1
kind: Deployment #object type
metadata:

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terraform {
  required_providers {
    aws = {
      source = "hashicorp/aws"
      version = "5.47.0"
    }
  }
}

provider "aws" {

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apiVersion: v1
kind: Namespace
metadata:
  name: letsgo
  labels:
    type: development
---
apiVersion: apps/v1
kind: Deployment
metadata:

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Email Fundamentals

• https://www.youtube.com/watch?v=Ai8rjqelwsI&list=PLDadzdouM0VBkac7BMCsEMCcmgHoqRUz6
• https://www.youtube.com/watch?v=0Uh7jUFQAWs

Conventional Commits

• https://conventionalcomments.org

Linux

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Semantic Versioning With Git Tags

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What is a git tag?

A git tag is just a way to add a marker to a commit.

There are two types of tags.

Light weight tag, a human redable name that you can assign to a commit hash.

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Data Strctures And Algorithm

• Big O Notation is used to describe the performance of an alogrithm.
• It is used to check if the algorithm is going scale well if the input grows really large.
• O(n)

O(1)

• O(1) notation
• It doesn't matter how big the array is. It can be either one or one million items.
• All we are doing below is printing the first item.
• Below method has a single operation and takes constant amount of time to run.

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go modules notes:

• go mod tidy
  • removes unused dependencies
  • adds the required dependencies
• go get github.com/user/module
  • this will add github.com/user/project as dependency under go.mod
• go mod why github.com/user/project
  • this provides information about where the package is used under a project
• go get variations
• go get github.com/julienschmidt/httprouter@latest to get the latest version of a package

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Introduction to Playbooks and Common Modules

• Know how to work with commonly used Ansible modules
• Create playbooks to configure systems to a specified state
• Use variables to retrieve the results of running commands
• Use conditionals to control play execution
• Configure error handling
• Selectively run specified tasks in playbook using tags

Know how to work with commonly used Ansible modules

• Core modules to be familiar with

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• Pseudo File System

  • Only exists in RAM while the system in running.
  • /proc contains information about the processes running on a system. Processes are are listed by PID.
  • /sys contains information about the systems hardware and kernel modules and no process information is listed here.
  • man proc for more info.

• Linux Kernel Module

  • Linux kernel is the core framework of the operating system.
  • GNU/Linux (GNU-The Open Source Tools Project / Linux-The Actual Kernel).
  • Linux Kernel is Monolithic (it handles all memory and device management).