Users and IAM Governance

• No Root user creds (lock away creds).
• Create IAM users and assign specific roles.
• Create roles with granular access
• Cross account access roles

Accounts Governance – Organizations and Landing Zones (Control Tower) for Multiple Accounts – Centralized logging account – with cross account access roles

• Master: This is where you will find the AWS organisation. Also found here are Single Sign-On (SSO) and a service catalog for the ‘Account Vending Machine’ (AVM), which automates the process of creating new AWS accounts.
• Security: Contains roles that allow you to switch to other accounts or receive notifications of security incidents.
• Shared services: Contains Active Directory and other services that are used by all accounts.
• Logging: This is the central landing place for logs, such as CloudTrail audit logs.

Resource Level Governance –  – Custom Policy PLUS CloudFormation

Simple Way = You can create an IAM policy that allows the action ‘CreateTags’ on a service, for example ‘ec2:CreateTags’ (as well as the ability to create a resource), and then have a condition attached that looks for a tag with a certain name having any value

Entire Infrastructure Automation – Cloudformation

1. Reproducible – Automate infrastructure creation
2. Automatic Dependencies – what to create first , second, next –  are resolved automatically – based on the References (Refs) in the stack definition.

PARAMETERS (INPUT PARAMETERS)  E.G. VPC NAME, REGION

MAPPINGS – FOR MULTI REGION TEMPLATES – CUSTOMIZING PER REGION – ESPECIALLY SINCE AMI ID IS DIFFERENT IN DIFFERENT REGIONS (FOR THE SAME IMAGE)

PSEUDO PARAMETERS – AVAILABLE BY DEFAULT – ACCOUNT ID, REGION

RESOURCES : { 

Refs

Installing / Configuring Software on Ec2 instance using UserData and Fn::Join Fn:: Base64

}

TerraForm

Create a Custom VM with two managed disks (EBS) on a cloud

Group of Resources Governance – Service Catalog (e.g. Create a custom training lab with custom software)

Service Catalog – Resource Level Automation –

•   Create a portfolio and a product (using template constraint and launch constraint)

Tagging Enforcement using Service Catalog

• Use AWS Service Catalog – DynamoDB , Lambda and Cloudwatch events

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