๐Ÿ“˜ AWS IAM Explained Desi-Style โ€” With Hall Passes, Principals & Guest Lecturers! (Part 1)

Utkarsh RastogiUtkarsh Rastogi
6 min read

๐ŸŽ“ Welcome to the IAM School Series!

Whether you're just starting your AWS journey or already deploying production workloads, one thingโ€™s certain:

IAM (Identity and Access Management) is your Principal, Security Guard, and Rulebook all rolled into one.

But IAM can feel complex and abstract โ€” especially for beginners. Thatโ€™s why weโ€™re launching this fun, visual blog series to break down IAM concepts using something we can all relate to:

๐Ÿซ School Life! ๐ŸŽ’


๐Ÿง  Why This Series?

In this series, weโ€™ll decode IAM through relatable school analogies, helpful visual diagrams, and real AWS examples โ€”
making even advanced topics simple, memorable, and desi-style fun ๐Ÿ‡ฎ๐Ÿ‡ณโœจ

Whether you're a student of the cloud or an AWS pro brushing up on the basics

๐Ÿ“š Welcome to the IAM School Series!

Let's start learning IAM the fun way โ€” one hall pass at a time!


๐Ÿซ IAM = School Security + Permissions Management

Imagine AWS is a giant digital school:

  • ๐Ÿง‘โ€๐ŸŽ“ IAM Users = Students/Teachers

  • ๐ŸŽซ Policies = Hall Passes

  • ๐Ÿ‘จโ€๐Ÿซ Roles = Guest Lecturers

  • ๐Ÿข AWS Environment = School Building

  • ๐Ÿงช Services like S3, EC2 = Classrooms

  • ๐Ÿ” IAM = Principalโ€™s Office managing security & access

๐ŸŽฏ Goal of IAM?

Ensure only the right people or applications have just the right access to the right AWS resources โ€” and nothing more.


๐Ÿงฑ IAM Building Blocks โ€” As Seen in School

IAM ConceptSchool AnalogyPurpose
IAM UserStudent/TeacherPerson or app with credentials to access AWS
IAM GroupMath DepartmentGroup of users sharing the same permissions
IAM RoleGuest LecturerTemporary access assumed by users/services
PolicyHall Pass / School RulesDefines allowed actions and resources
Trust PolicyVisitor Sign-In SheetDefines who is allowed to assume a role
AuthenticationStudent ID CardVerifies identity
AuthorizationHall Pass CheckVerifies what you can do

๐Ÿ“Œ IAM School Map: Visual Breakdown

AWS IAM School Map

Visual Explanation:

  • ๐Ÿซ AWS = School Building with classrooms (services)

  • ๐Ÿ‘ฉโ€๐ŸŽ“ IAM Users = Students accessing services

  • ๐Ÿ‘จโ€๐Ÿ”ฌ IAM Roles = Guest lecturers with temp access

  • ๐ŸŽซ Policies = Hall passes

  • ๐Ÿ” Arrows = How permissions flow


๐Ÿ’ก IAM in Action: Explained Through a School Scenario

๐ŸŽ“ School Example: Submitting Homework to a Box

  • Student John (IAM User)

  • Homework Box (S3 Bucket)

  • Hall Pass (IAM Policy)

  • Rule: Can submit only, not read/delete othersโ€™ work

John's hall pass says:
"Allowed to submit homework in Room 3A only."
Not allowed to read, edit, or delete.

โœ… Result: John can drop off homework, but nothing else.
๐Ÿ”’ This is Least Privilege in action.

School Analogy: Submitting Homework


๐Ÿง‘โ€๐Ÿ’ป Real AWS Scenario: Uploading Logs to S3

Developer John = IAM User

Needs access to upload logs to S3 โ€” but nothing else.

User + Policy + S3

โœ… IAM Policy Attached to the User:

{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:PutObject",
      "Resource": "arn:aws:s3:::my-app-logs/*"
    }
  ]
}

๐Ÿ” Result:

  • โœ… Can upload logs

  • ๐Ÿšซ Cannot list/read/delete files

๐Ÿง  Takeaway: This is a textbook example of least privilege โ€” only what's needed, nothing more.


๐Ÿง  Trust vs Permissions โ€” Simplified with a School Analogy

In AWS IAM:

  • ๐Ÿ” Trust = Who can assume the role (entry permission)

  • โœ… Permissions = What they can do (action permission)


๐Ÿซ School Analogy: Guest Speaker in a Classroom

Imagine a guest speaker (Lambda) wants to give a lecture in Room 7B (DynamoDB).

Two approvals needed:

  1. ๐Ÿ›๏ธ Principal (Trust Policy): Allows entry into the school

  2. ๐Ÿ‘ฉโ€๐Ÿซ Teacher (Permissions Policy): Allows teaching in Room 7B

โœ… Access is only granted when both agree


๐Ÿ“Œ Diagram: Trust vs Permissions in School

Trust vs Permissions Diagram


๐Ÿ”„ Real AWS Example: Lambda Writing to DynamoDB

1. ๐Ÿ›๏ธ Trust Policy โ€” Who can assume the role

{
  "Version": "2012-10-17",
  "Statement": [{
    "Effect": "Allow",
    "Principal": {
      "Service": "lambda.amazonaws.com"
    },
    "Action": "sts:AssumeRole"
  }]
}

2. ๐Ÿ“‹ Permissions Policy โ€” What the Role Can Do

This policy grants the IAM role permission to write items to a specific DynamoDB table:

{
  "Version": "2012-10-17",
  "Statement": [{
    "Effect": "Allow",
    "Action": "dynamodb:PutItem",
    "Resource": "arn:aws:dynamodb:<Region>:<AccountID>:table/MyAppTable"
  }]
}

โœ… This ensures the role can only perform PutItem (write operation) on the MyAppTable โ€” and nothing else.


๐Ÿš€ IAM Simplified โ€” Wrapping Up Part 1 of the Series

This post kicked off the IAM School Series โ€” a fun and visual way to learn AWS IAM using relatable school analogies ๐ŸŽ“.

โœ… Key Takeaways:

  • IAM is like your school's principal, security guard, and rulebook โ€” managing who can go where and do what.

  • Users, Roles, Policies = Students, Guest Lecturers, Hall Passes

  • Trust vs Permissions = Entry vs Actions โ€” both must match.

  • Least privilege is key: give only the access that's needed โ€” nothing more.


๐Ÿ”š Final Thought

IAM isnโ€™t boring โ€” itโ€™s the school rulebook of the cloud!
So next time someone says IAM is complex, just smile and say:

โ€œIAM ek school ke principal jaisa hai โ€” har entry aur har permission uski marzi se hoti hai!โ€ ๐Ÿ˜„


๐Ÿ”œ Whatโ€™s Next?

This was Part 1 of the IAM School Series.
Stay tuned for:

  • More IAM concepts explained desi-style ๐Ÿ‡ฎ๐Ÿ‡ณ

  • Visual breakdowns and real-world AWS use cases

  • Cloud wisdom โ€” made fun, simple, and memorable

And always remember: "Hall pass ke bina entry allowed nahi hai!" ๐ŸŽซ


๐Ÿ“Œ Follow along and letโ€™s keep learning โ€”
One IAM role at a time!


๐Ÿ–ผ๏ธ A Note on Visuals

All diagrams in this series are AI-generated using ChatGPT to keep things visual โ€” but the stories, analogies, and examples are purely mine โค๏ธ


๐Ÿ‘จโ€๐Ÿ’ป About Me

Hi! I'm Utkarsh, a Cloud Specialist & AWS Community Builder who loves turning complex AWS topics into fun chai-time stories โ˜•
๐Ÿ‘‰ Explore more


๐Ÿ—ฃ๏ธ Your Feedback = My Fuel

If this made IAM:

  • Easy to understand ๐Ÿ’ก

  • Fun to learn ๐ŸŽ‰

  • Or gave you a school flashback ๐ŸŽ’

Then share it, comment, or just say hi โ€” it helps me keep the chai warm and the blogs coming! โ˜๏ธ๐Ÿ’ป


Jai Cloud! Jai Code! Jai IAM! ๐Ÿ‡ฎ๐Ÿ‡ณ๐Ÿš€

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Written by

Utkarsh Rastogi
Utkarsh Rastogi

๐Ÿ‘จโ€๐Ÿ’ป AWS Cloud Engineer | Around 6 years of Corporate Experience | Driving Innovation in Cloud Solutions ๐Ÿ”ง Day-to-Day Tasks: Specialize in creating AWS infrastructure for Migration Projects. Leveraging services such as S3, SNS, SQS, IAM, Lambda, System Manager, Kinesis, OpenSearch, Cognito, Storage Gateway, Cloud Watch, API Gateway, AWS Event Scheduler, Secret Manager, ECS, Application Load Balancer, VPC among others. Additionally, I excel in crafting Splunk Dashboards and implementing alerting mechanisms for Cloud Watch logs to monitor failures. My approach involves constructing AWS infrastructure using the Serverless framework and Cloud Formation templates, while automating tasks through Boto3 (Python Scripting) Lambdas. ๐ŸŽฏ Passion: I am deeply passionate about continuously learning new technologies and eagerly anticipate the transformative impact of cloud computing on the tech landscape. ๐Ÿ“ง Connect: Feel free to reach out to me at awslearningoals@gmail.com. Let's connect and explore potential collaborations! https://www.linkedin.com/in/rastogiutkarsh/