Builders section of Packer JSON

packer_builders.json

    "builders": [
      {
        "type": "amazon-ebs",
        "access_key": "{{user `aws_access_key`}}",
        "secret_key": "{{user `aws_secret_key`}}",
        "region": "us-east-1",
        "source_ami_filter": {
          "filters": {
            "virtualization-type": "hvm",
            "name": "amzn2-ami-hvm-2.0.20200207.1-x86_64-gp2",
            "root-device-type": "ebs"
          },
          "owners": ["137112412989"],
          "most_recent": true
        },
        "instance_type": "t2.micro",
        "ssh_username": "ec2-user",
        "ami_name": "_b_d_a_example {{timestamp}}"
      }
    ],