Concepts

Whilst reading the sections you’ll be presented with the Well Architected Bar, this is to tell you which parts of the Well-Architected Framework is applicaple to the content you are about to read. The example below indicates that Security is the main focus of the content but the content is also applicable to Operational Excellence as a secondary catergory.

OpEx Sec Rel Perf Cost Sus

This book includes code samples and command line (CLI) instructions to run as you go through it. The code blocks will be Terraform or Python code, the code blocks will always be tagged with the correct language like so:

import boto3, botocore
import base64, os, json, requests
from aws_lambda_powertools import Tracer
from aws_lambda_powertools.logging.logger import set_package_logger

set_package_logger()

# POWERTOOLS_SERVICE_NAME defined
tracer = Tracer(service="s3r")

def check_safeurl(url):
    ''' check url to make sure its not on a blocked list'''
    if os.environ['SafeBrowsing'] == 'true':
……

Command Line instructions will be indented on their own line, for example

aws s3 ls

Should you need to change a variable in the code or CLI instruction it will be highlighted in bold and <> for example <AWS_REGION>