Adds ssh key to aws secrets manager using terraform

main.tf

provider "aws" {
  region = "ap-south-1"
}

resource "tls_private_key" "instance" {
  algorithm = "RSA"
}

resource "aws_key_pair" "instance" {
  key_name   = "test-keypair"
  public_key = tls_private_key.instance.public_key_openssh
  tags = {
    Name = "test-keypair"
  }
}

resource "aws_instance" "instance" {
  ami                    = "<ami>"
  instance_type          = "t2.small"
  key_name               = aws_key_pair.instance.key_name
  subnet_id              = "<value>"
  vpc_security_group_ids = ["<value>"]
  tags                   = { env = "testing" }
}

# Creates and stores ssh key used creating an EC2 instance
resource "aws_secretsmanager_secret" "example" {
  name = "example"
}

resource "aws_secretsmanager_secret_version" "example" {
  secret_id     = aws_secretsmanager_secret.example.id
  secret_string = tls_private_key.instance.private_key_pem
}

# Output

output "instance_id" {
  value = aws_instance.instance.id
}

output "secretsmanager_secret" {
  value = aws_secretsmanager_secret.example.id
}

output "secretsmanager_secret_version" {
  value = aws_secretsmanager_secret_version.example.id
}