template.json

{
  "variables": {
    "aws_region": "eu-central-1",
    "ami_base_name": "",
    "aws_access_key" : "{{ env `AWS_ACCESS_KEY_ID` }}",
    "aws_secret_key": "{{ env `AWS_SECRET_ACCESS_KEY` }}",
    "vpcid" : "<vpcid>",
    "subnetid" : "<subnet_id>",
    "dockerpassword": "{{env `dockerpassword`}}",
    "dockeruser": "{{env `dockeruser`}}"
    },
  "builders": [{
    "access_key": "{{user `aws_access_key`}}",
    "secret_key": "{{user `aws_secret_key`}}",
    "type": "amazon-ebs",
    "ami_name": "packer-example {{timestamp}}",
    "ami_description": "An example of how to create a custom AMI on top of Ubuntu",
    "instance_type": "t2.micro",
    "region": "{{user `aws_region`}}",
    "vpc_id": "{{user `vpcid`}}",
    "subnet_id": "{{user `subnetid`}}",
    "force_delete_snapshot" : "true",
    "force_deregister" : "true",
    "security_group_id" : "<security_group>",
    "associate_public_ip_address": "true",
    "tags": {
      "Name": "JMeterAMI"
    },
          
    "source_ami_filter": {
      "filters": {
        "virtualization-type": "hvm",
        "name": "amzn2-ami-hvm-2.0.????????-x86_64-gp2",
        "root-device-type": "ebs"
      },
      "owners": ["amazon"],
      "most_recent": true
    },

    "ssh_username": "ec2-user"
    }
  ],
  "provisioners" : [
    {
      "type" : "shell",
      "script": "Scripts/prepare.sh",
      "environment_vars" : [
        "dockerpassword={{ user `dockerpassword`}}",
        "dockeruser={{user `dockeruser`}}"
      ]
    },
    {
      "type": "file",
      "source" : "ToUpload/",
      "destination": "/tmp"  
    },
    {
      "type": "shell",
      "inline": [
        "aws configure set aws_access_key_id  {{user `aws_access_key`}}",
        "aws configure set aws_secret_access_key {{user `aws_secret_key`}}",
        "aws configure set region {{user `aws_region`}}",
        "sudo mv /tmp/* /opt/jmeter",
        "sudo chmod 777 /opt/jmeter"
      ] 
    },
    {
      "type": "file",
      "source" : "./",
      "destination": "/tmp"
    },
    {
      "type" : "ansible-local",
      "playbook_file" : "test.yml",
      "staging_directory" : "/opt/jmeter/roles",
      "playbook_dir" : "terraform/roles",
      "extra_arguments": [ "--extra-vars \"bucket=jmetertestresult-850526132661 keyprefix=mqtttestresult\"", "--tags prepare" ]
    }
  ]
}