DevOps Classroom notes 22/Aug/2026

terraform import

• to import existing resources to terraform or manuall created resources add to tf state file

import s3

1. backend file and provide
2. import resoure two ways

import {
  to = aws_s3_bucket.example
  identity = {
    bucket = "bucket-name"
  }
}

resource "aws_s3_bucket" "example" {
  ### Configuration omitted for brevity ###
}

terraform import aws_s3_bucket.example bucket-name

Note: After import completed remove import configure and run terraform init && terraform plan and fix plan changes and make tf state no changes then apply changes by terraform apply

Task:

create ec2 instance & security group manually and import resources to terraform statefile

• Import EC2 Referance

• security_group import

• security_group_rule

Terraform workspace

• create virtual enviromenmt and deploy resource specific names

• before create workspace need run terraform init -backend-config="key=dev/terraform.tfstate"

• terraform workspace

terraform workspace
Usage: terraform [global options] workspace

  new, list, show, select and delete Terraform workspaces.

Subcommands:
    delete    Delete a workspace
    list      List Workspaces
    new       Create a new workspace
    select    Select a workspace
    show      Show the name of the current workspace

Ex:

1. create workspace terraform workspace new dev
2. select workspace terraform workspace select dev

variable "s3-name" {
    type = string
    default = "qt-demo-s3-app"
}

locals {
  enviroment = "${terraform.workspace}"
  s3_name = "${var.s3-name}-${terraform.workspace}"
}


resource "aws_s3_bucket" "import_s3" {
    bucket = local.s3_name
}

Watch class recording and create workspace.