Dockerimage for packer

Docker Hub

This image is used to run packer with an amazon-ebs builder and ansible-provisioner. It also comes with the aws session manager plugin installed, to utilize packers session_manager connector.

An example usage for the session manager would be to prevent disconnects when changing the servers ip.

Usage

Please note, that amazons ssm agent has to be preinstalled on your source ami!

docker run -it \
    --mount type=bind,source=$(pwd),target=/build \
    crontis/packer-ebs-ansible:latest "packer build /build/template.json"

Please note, that you need to provide your aws credentials somehow. You can set them via your CI or provide them directly to docker:

docker run -it \
    --mount type=bind,source=$(pwd),target=/build \
    -e AWS_ACCESS_KEY_ID="KEY" \
    -e AWS_SECRET_ACCESS_KEY="SECRET" \
    crontis/packer-ebs-ansible:latest "packer build /build/template.json"

Packer example usage with session_manager

The ami has to be replace with an ami that has the ssm agent installed.

{
    "variables": {
        "aws_access_key": "",
        "aws_secret_key": ""
    },
    "builders": [
        {
            "type": "amazon-ebs",
            "region": "eu-central-1",
            "access_key": "{{user `aws_access_key`}}",
            "secret_key": "{{user `aws_secret_key`}}",
            "associate_public_ip_address": true,
            "source_ami": "ami_with_ssm_agent",
            "instance_type": "t2.micro",
            "ssh_interface": "session_manager",
            "ssh_username": "centos",
            "iam_instance_profile": "SSMInstanceProfile",
            "ami_name": "centos {{timestamp}}"
        }
    ],
    "provisioners": [
        {
            "type": "ansible",
            "playbook_file": "your_playbook.yml"
        }
    ]
}