How to Deploy IAC with your secrets in Terraform Vault – 100 days of Cloud: Day 23

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

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.

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 credentialsGIF

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 -

Adding HashiCorp Linux repo

sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"

install

sudo apt-get update && sudo apt-get install vault

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"

Note down the Vault Address, Unsealkey & Root token.

Sign into vault server

Enter token as “environment”

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

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"
    }
}

You have to change ami incase your region is not on ap-southeast-2