DEV Community: Andrew Artajos

S3 101

Andrew Artajos — Tue, 08 Jun 2021 01:12:49 +0000

Q: Why S3?

A: Simple Storage Service

Notes

S3 is object based, allows you to upload files.
Files could be 0bytes to 5TB
Unlimited storage
Files are stored in buckets — not folders
S3 is a universal namespace — names should be unique. It’s like a one big C drive
Not suitable to install an operating system
Successful uploads will return a HTTP 200 status code

Basics

Key/Value pair
Key name of the object
Value data of the object
Upload - read immediately
Modify / Delete - not guaranteed to take effect at once.

Types

IAM Credential Report

Andrew Artajos — Wed, 02 Jun 2021 12:03:40 +0000

What?

If you are an organisation with lots of users.

You can generate and download a credential report that lists all users in your account.

How?

IAM credential report > Credential Report > Download

It will list all information about the users'

Passwords
Access keys
MFA

Identity Access Management (IAM)

Andrew Artajos — Wed, 26 May 2021 02:12:30 +0000

Identity Access Management

Global - no need to specify a region
Once created, this is applicable GLOBALLY.

3 ways to access AWS Console

Console
Programmatically (was-cli)
SDK

Root Account

Email address used to setup the AWS account
Has full administrator access
Secure with Multi-Factor Authentication
Create users for each individual for your organisation

Group

Store your users
Could apply policy to a group
Members of that group get the same access

IAM Best Practices

Root Account

Do not use for login
Create a “working account”

MFA

Always enable

Users

One user = One real human being

User/Groups/Policies

Always place users in groups.
Apply policies to groups.

Password Policies

Have a strong password rotation policy

Access Keys

Use access keys for programmatic access

Roles

Use roles to access other AWS services.

IAM Credential Report

Use IAM credential reports to audit the permissions of your users/accounts.

HowTo: Create a billing alarm

Andrew Artajos — Sun, 23 May 2021 23:32:36 +0000

Why?

Setting up this alarm will monitor your billing charges. It allows you to set a treshold value (e.g. $20.00). When your bill goes over $20.00, you get an email from AWS.

Steps

Log in to the AWS Console
Go to the CloudWatch service > Billing
Click Create Alarm
Select Metric > Billing > Total estimated charge > USD > Select Metric > Static > Enter a Threshold value ($10) > Next
Create new topic > enter email address > Create Topic > Next
Verify your email address by logging into your email account. Look for the email, click verify. Go back to AWS console.
Alarm name > Alarm Description > Next
Create Alarm

AWS Support Packages

Andrew Artajos — Fri, 21 May 2021 23:57:51 +0000

Support Packages

Basic - Free. customer service for account + billing.
Developer - $29/month. experimenting with AWS. One primary contact may ask technical questions through the Support Centre. Response will be in 12-24 hours during local business hours.
Business - $100/month. production use of AWS. 24x7 support. 1 hour response time.
Enterprise - $15,000. mission critical use of AWS. Assigned a Technical Account Manager. 15-minute response times.

AWS Management Console

Region
All services

Around the world with AWS | Global Infrastructure

Andrew Artajos — Fri, 21 May 2021 23:49:43 +0000

Region

A physical location in the world which consists of two or more Availability Zones
Geographical area (think cities | countries)
Consists of two or more Availability zones

Availability Zone

Data centre - building with servers or several data centres
One or more data centres, with redundant power, networking + connectivity, housed in separate facilities

Edge Locations

End points for caching content (CDN)
Cloudfront

Choosing the right AWS Region

Data Sovereignty Laws
Latency to end users
AWS services

Cloud Practitioner Certification exam tips.

Andrew Artajos — Mon, 17 May 2021 23:25:51 +0000

Exam tips

As my last post, I am starting my AWS Cloud Practitioner certification journey this year but haven't made significant progress.

I thought sharing my learning publicly would give me more accountability to continue.

Here are my notes on my journey while preparing for my AWS Cloud Practitioner Certification.

Know the 6 advantages of Cloud Computing

Trade Capital Expense for Variable Expense
Benefit from massive economies of scale
Stop Guessing about capacity
Increase speed + agility
Stop spending money running and maintaining data centres
Go global in minutes

Know the 3 different types of Cloud Computing

Infrastructure as a service (IAAS)
Platform as a service (PAAS)
Software as a service (SAAS)

Know the 3 different types of Cloud Computing deployments

Public cloud (AWS)
Hybrid = public + private deployments
Private Cloud = on prem servers

Progress

6% Complete.

In the pursuit of AWS Cloud Practitioner Certification

Andrew Artajos — Mon, 17 May 2021 08:17:57 +0000

Goal

I have set myself a goal at the start of 2021:

Get my AWS Cloud Practitioner Certification.

First half of the year went past, still no progress. I am doing something about this. I am making it public here at dev.to

Exam Guide

You can download the exam guide.

From the guide, you should be able to pass the certification exam if you are able to demonstrate knowledge in these areas:

Cloud Concepts
1.1 Define the AWS Cloud and its value proposition
1.2 Identify aspects of AWS Cloud economics
1.3 List the different cloud architecture design principles
Security and Compliance
2.1 Define the AWS shared responsibility model
2.2 Define AWS Cloud security and compliance concepts
2.3 Identify AWS access management capabilities
2.4 Identify resources for security support
Technology
3.1 Define methods of deploying and operating in the AWS Cloud
3.2 Define the AWS global infrastructure
3.3 Identify the core AWS services
3.4 Identify resources for technology support
Billing and Pricing
4.1 Compare and contrast the various pricing models for AWS
4.2 Recognize the various account structures in relation to AWS billing and pricing
4.3 Identify resources available for billing support

The Process

I have signed up at ACloudGuru's course of the same name:

AWS Certified Cloud Practitioner by Ryan Kroonenburg

Everyday, I will login to this course and consume at least one video.

Once I get to the end of the course, I have consumed 80+ videos from the course.

A good tip I received from a colleague, once I have finished the course, get a udemy practice exam course.

Once I get consistent passing marks, I am ready to book my aws cloud practitioner exam.

Progress

I made good progress today and finished the introduction bit. A total of four videos.