DevOps Classroom notes 06/Aug/2026

configure aws cli in linux server

 aws configure

Tip: You can deliver temporary credentials to the AWS CLI using your AWS Console session by running the command 'aws login'.

AWS Access Key ID [None]: AKIA6REBIQNDIG*******
AWS Secret Access Key [None]: vONNNXCdf3DUiAaxIng1*********
Default region name [None]: us-east-1
Default output format [None]: json

• Terrafrom installation guide

create vpc with 2 subnets

• VPC:
  • name: qt-demo-vpc
  • cidr-range: 10.2.0.0/16
  • 2 subnets
    • name: app1 & app2 & app3
    • cidr: 10.2.1.0/24, 10.2.2.0/24, 10.2.3.0/24

refer Terraform vpc

Argument: inputs to resources in terraform

resource "aws_vpc" "qt-demo-vpc" {
  cidr_block = "10.2.0.0/16"
  tags = {
    Name = "main"
  }
}

resource "aws_subnet" "app_1" {
    vpc_id = aws_vpc.qt-demo-vpc.id
    cidr_block = "10.2.1.0/24"
    tags = {
    Name = "app1"
  }
  depends_on = [ aws_vpc.qt-demo-vpc ]
}

resource "aws_subnet" "app_2" {
    vpc_id = aws_vpc.qt-demo-vpc.id
    cidr_block = "10.2.2.0/24"
    tags = {
    Name = "app2"
  }
  depends_on = [ aws_vpc.qt-demo-vpc ]
}

resource "aws_subnet" "app_3" {
    vpc_id = aws_vpc.qt-demo-vpc.id
    cidr_block = "10.2.3.0/24"
    tags = {
    Name = "app3"
  }
    depends_on = [ aws_vpc.qt-demo-vpc ]
}