AWS Topics

“AWS Identity and Access Management (IAM) lets you securely control who can access which AWS resources, using users, groups, roles, and policies.”
“Best practice is: never use the root account; instead create IAM users and roles with least‑privilege policies (JSON permissions documents) and use them via console, CLI, or SDK.”
“In real projects, EC2, Lambda, and other services assume IAM roles so they can talk to S3, RDS, or other services without hard‑coded credentials.”

Trainer actions / demo idea:

“Amazon VPC (Virtual Private Cloud) is a logically isolated virtual network where you launch your AWS resources, with your own IP ranges, subnets, route tables, and gateways.”
“Typical pattern: public subnets for internet‑facing components (ALB, bastion, NAT gateway) and private subnets for app servers and databases, controlled using security groups and network ACLs.”
“Placing RDS and internal services only in private subnets is a key security best practice; internet traffic hits the web/app layer but never talks to the database directly.”

Trainer actions / whiteboard:

Draw a simple VPC with 2 public and 2 private subnets, an EC2 instance in public, RDS in private, and S3 outside VPC.
Highlight security groups vs network ACLs and the role of NAT gateway for outbound traffic from private subnets.

“Amazon EC2 (Elastic Compute Cloud) provides resizable virtual servers (instances) in the cloud for running applications, APIs, and background jobs.”
“You choose instance type (CPU/RAM), OS AMI, networking (subnet, security groups), storage (EBS), and can auto scale up or down based on demand to control performance and cost.”

“Amazon S3 (Simple Storage Service) is highly durable object storage for files like logs, backups, images, and static website assets, accessible over HTTP.”
“It uses buckets and objects, supports versioning, lifecycle rules, cross‑region replication, and fine‑grained IAM‑based access control, with pay‑as‑you‑go pricing.”

“Amazon RDS (Relational Database Service) is a managed database service supporting engines like MySQL, PostgreSQL, and others, handling backups, patching, and failover.”
“You typically deploy RDS inside a VPC in private subnets, use security groups for access control, and scale vertically (bigger instance) or via read replicas for heavy read traffic.”

“AWS Lambda lets you run code without managing servers, triggered by events such as API Gateway calls, S3 uploads, or CloudWatch schedules.”
“You pay only for execution time, which is very useful for glue logic, micro‑APIs, cron‑like jobs, and event‑driven architectures.”

Trainer tips:

For each service, include a 3–5 minute demo or screenshot walkthrough (launch EC2, create S3 bucket, show RDS console, inspect a Lambda function trigger).

Explain and sketch this architecture:

“A typical 2‑tier web application on AWS uses a VPC for isolation, EC2 instances in public or private subnets for the web/app tier, RDS in private subnets for persistence, and S3 for static assets or backups.”
“Traffic flows: user → internet → load balancer/EC2 in public subnet → RDS in private subnet, while logs/backups or static content go to S3; IAM roles and security groups secure each hop.”

DevOps closure:

“On top of this, DevOps teams add CodeCommit/CodeBuild/CodeDeploy/CodePipeline to automate builds, tests, and deployments of the application into EC2 or Lambda, enabling continuous delivery on AWS.”
“Monitoring and logging are usually handled using CloudWatch and related services, so that the pipeline plus runtime environment are both observable and auditable.”

Trainer actions:

Sketch the flow while describing each component’s role.
Optionally run a short demo showing deployment pipeline artifacts or a CloudWatch dashboard.

If you tell me the class duration (e.g., 60 or 90 minutes), I can provide a minute‑by‑minute plan with activities and questions.

References

⁂

Last updated 29 days ago