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Deploying IAC with your secrets in Terraform Vault

#tutorial #cloud #security #devops

DAY 23 - Deploying IAC with your secrets in Terraform Vault - Day Twenty three

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100 days of Cloud on GitHub - Read On iCTPro.co.nz - Read on Dev.to

What is Vault?

Securely accesses secrets , HashiCorp explains as Vault comes with various pluggable components called secrets engines and authentication methods allowing you to integrate with external systems. Vault issues temporary tokens to access the resources.
Image vault image

  • In the blog I will be demonstrating how to setup a vault
  • Accessing secrets from Vault to Deploy your infrastructure into a AWS environment.

Prerequisite

Install AWS CLI and Configure with IAM credentials

Image click

Install Vault

Goto this link to install Vault
I Am using a WSL Linux on windows

  • Getting GPG key 
curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
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  • Adding HashiCorp Linux repo 
sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
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  • install 
sudo apt-get update && sudo apt-get install vault
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Setup Vault Project folder

  • Lets create a project folder named Vault and cd into it

Setup Vault Server (Dev environment) 

vault server -dev -dev-root-token-id="environment"
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Image vault server

Note down the Vault Address, Unsealkey & Root token.

Sign into vault server

Image vault login
Enter token as "environment"

  • Select Secret & Click Create Secret.
  • Enter your IAM Programmatic access keys & Save.

Image AWS CLI

Deploying with Vault

  • Create a main.tf file and copy paste this command 
terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "3.58.0"
    }
  }
}

data "vault_generic_secret" "aws_creds" {
    path = "secret/aws"
}

provider "aws" {
  region  = data.vault_generic_secret.aws_creds.data["region"]
    access_key = data.vault_generic_secret.aws_creds.data["aws_access_key_id"]
    secret_key = data.vault_generic_secret.aws_creds.data["aws_secret_access_key"]
}


resource "aws_instance" "my_server" {
  ami           = "ami-059af0b76ba105e7e"
  instance_type = "t2.nano"
    tags = {
        Name = "Vault-Server"
    }
}
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You have to change ami incase your region is not on ap-southeast-2

  • Initialize Terraform 
terraform init
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  • Plan terraform 
terraform plan
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You will be prompted to enter the vault url, in this case it is http://127.0.0.1:8200/

Image url vault

  • Deploy infrastructure 
terraform apply -auto-approve
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  • Enter url of vault when its prompted.

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  • Teardown your infrastructure

if you are happy with the deployment , you can tear down the deployed resources

terraform apply -auto-approve -destroy
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😀🎉Congratulations🎉 you have successfully deployed IAC with Terraform Vault

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anuvindhs image

Anuvindh

Experienced Cloud Technology Specialist with a demonstrated skillset of working with Banking , Medical Service , NZ Police & Education industry

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