build-amis.txt

Packer Additional parameters
---------------------------- 
-machine-readable -var aws_access_key=your_aws_access_key -var "aws_secret_key=your_aws_secret_key"

Packer Template Text
--------------------
 {
 "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": "ubuntu/images/*ubuntu-xenial-16.04-amd64-server-*",
      "root-device-type": "ebs"
      },
      "owners": ["099720109477"],
      "most_recent": true
    },
    "instance_type": "t2.micro",
    "ssh_username": "ubuntu",
    "ami_name": "packer-example {{timestamp}}"
  }],

  "provisioners": [{
    "type": "shell",
    "inline": [
      "sudo apt-get update",
      "sudo apt-get install -y nginx"
    ]
  }],

  "post-processors": [
    {
      "type": "manifest",
      "output": "manifest.json",
      "strip_path": true
    }
  ]
}


Spinnaker deploy edit json
--------------------------
      "amiName": "${ #stage( 'Jenkins' )['context']['builds'][ #stage( 'Jenkins' )['context']['builds'].size() -1 ]['artifact_id'].split(':')[1] }",