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


๐ Welcome to the IAM School Series!
Whether you're just starting your AWS journey or already deploying production workloads, one thingโs 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. Thatโs why weโre launching this fun, visual blog series to break down IAM concepts using something we can all relate to:
๐ซ School Life! ๐
๐ง Why This Series?
In this series, weโll decode IAM through relatable school analogies, helpful visual diagrams, and real AWS examples โ
making even advanced topics simple, memorable, and desi-style fun ๐ฎ๐ณโจ
Whether you're a student of the cloud or an AWS pro brushing up on the basics
๐ Welcome to the IAM School Series!
Let's start learning IAM the fun way โ one hall pass at a time!
๐ซ IAM = School Security + Permissions Management
Imagine AWS is a giant digital school:
๐งโ๐ IAM Users = Students/Teachers
๐ซ Policies = Hall Passes
๐จโ๐ซ Roles = Guest Lecturers
๐ข AWS Environment = School Building
๐งช Services like S3, EC2 = Classrooms
๐ IAM = Principalโs Office managing security & access
๐ฏ Goal of IAM?
Ensure only the right people or applications have just the right access to the right AWS resources โ and nothing more.
๐งฑ IAM Building Blocks โ As Seen in School
IAM Concept | School Analogy | Purpose |
IAM User | Student/Teacher | Person or app with credentials to access AWS |
IAM Group | Math Department | Group of users sharing the same permissions |
IAM Role | Guest Lecturer | Temporary access assumed by users/services |
Policy | Hall Pass / School Rules | Defines allowed actions and resources |
Trust Policy | Visitor Sign-In Sheet | Defines who is allowed to assume a role |
Authentication | Student ID Card | Verifies identity |
Authorization | Hall Pass Check | Verifies what you can do |
๐ IAM School Map: Visual Breakdown
Visual Explanation:
๐ซ AWS = School Building with classrooms (services)
๐ฉโ๐ IAM Users = Students accessing services
๐จโ๐ฌ IAM Roles = Guest lecturers with temp access
๐ซ Policies = Hall passes
๐ Arrows = How permissions flow
๐ก IAM in Action: Explained Through a School Scenario
๐ 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.
โ
Result: John can drop off homework, but nothing else.
๐ This is Least Privilege in action.
๐งโ๐ป Real AWS Scenario: Uploading Logs to S3
Developer John = IAM User
Needs access to upload logs to S3 โ but nothing else.
โ IAM Policy Attached to the User:
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::my-app-logs/*"
}
]
}
๐ Result:
โ Can upload logs
๐ซ Cannot list/read/delete files
๐ง Takeaway: This is a textbook example of least privilege โ only what's needed, nothing more.
๐ง Trust vs Permissions โ Simplified with a School Analogy
In AWS IAM:
๐ Trust = Who can assume the role (entry permission)
โ Permissions = What they can do (action permission)
๐ซ School Analogy: Guest Speaker in a Classroom
Imagine a guest speaker (Lambda) wants to give a lecture in Room 7B (DynamoDB).
Two approvals needed:
๐๏ธ Principal (Trust Policy): Allows entry into the school
๐ฉโ๐ซ Teacher (Permissions Policy): Allows teaching in Room 7B
โ Access is only granted when both agree
๐ Diagram: Trust vs Permissions in School
๐ Real AWS Example: Lambda Writing to DynamoDB
1. ๐๏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. ๐ 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"
}]
}
โ This ensures the role can only perform
PutItem
(write operation) on theMyAppTable
โ and nothing else.
๐ 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 ๐.
โ 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.
๐ Final Thought
IAM isnโt boring โ itโs the school rulebook of the cloud!
So next time someone says IAM is complex, just smile and say:
โIAM ek school ke principal jaisa hai โ har entry aur har permission uski marzi se hoti hai!โ ๐
๐ Whatโs Next?
This was Part 1 of the IAM School Series.
Stay tuned for:
More IAM concepts explained desi-style ๐ฎ๐ณ
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!" ๐ซ
๐ Follow along and letโs keep learning โ
One IAM role at a time!
๐ผ๏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 โค๏ธ
๐จโ๐ป About Me
Hi! I'm Utkarsh, a Cloud Specialist & AWS Community Builder who loves turning complex AWS topics into fun chai-time stories โ
๐ Explore more
๐ฃ๏ธ Your Feedback = My Fuel
If this made IAM:
Easy to understand ๐ก
Fun to learn ๐
Or gave you a school flashback ๐
Then share it, comment, or just say hi โ it helps me keep the chai warm and the blogs coming! โ๏ธ๐ป
Jai Cloud! Jai Code! Jai IAM! ๐ฎ๐ณ๐
Subscribe to my newsletter
Read articles from Utkarsh Rastogi directly inside your inbox. Subscribe to the newsletter, and don't miss out.
Written by

Utkarsh Rastogi
Utkarsh Rastogi
๐จโ๐ป AWS Cloud Engineer | Around 6 years of Corporate Experience | Driving Innovation in Cloud Solutions ๐ง 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. ๐ฏ Passion: I am deeply passionate about continuously learning new technologies and eagerly anticipate the transformative impact of cloud computing on the tech landscape. ๐ง 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/