Deployment guide

Packer on Windows

Overview

HashiCorp Packer is an open-source tool that builds identical machine images for multiple platforms from a single source configuration. It automates the creation of AMIs, Docker images and other machine image formats.

This SecureAnyCloud AMI on AWS Marketplace gives you a Windows Server instance with Packer already installed, so you can connect over Remote Desktop and start building images straight away.

What you get:

  • HashiCorp Packer (latest version) preinstalled in the system PATH
  • A Command Prompt desktop shortcut for quick CLI access
  • Windows Server with Remote Desktop access
  • 24/7 SecureAnyCloud support with a guaranteed 24-hour response SLA

Prerequisites

Before you launch the AMI, make sure you have:

  • An active AWS account
  • An active subscription to the Packer on Windows listing on AWS Marketplace
  • An EC2 key pair for password decryption
  • A Remote Desktop client application

Recommended instance type: t3.medium (2 vCPU, 4 GB RAM) or larger. The minimum requirements are 1 vCPU, 1 GB RAM and 30 GB of disk space.

1

Launch the AMI

  • Open AWS Marketplace and search for "Packer Windows SecureAnyCloud".
  • Select Continue to Subscribe, accept the terms, then select Continue to Configuration.
  • Choose your Region and Software Version.
  • Select Continue to Launch.
  • Choose Launch through EC2 for full control over instance configuration.
  • Select your instance type. t3.medium is recommended.
  • Configure storage with at least 30 GB of gp3.
  • Configure your Security Group with the inbound rule below.

Allow inbound TCP on port 3389 from your IP address only. This rule provides Remote Desktop (RDP) access.

  • Select your EC2 key pair and launch the instance.
2

Retrieve the Windows password

Wait for the EC2 instance to pass its 2/2 status checks. The Windows password can take up to 15 minutes after launch to become available.

  • Open the AWS Console and go to EC2 > Instances.
  • Select your instance.
  • Choose Actions > Security > Get Windows password.
  • Select Browse and upload your EC2 key pair .pem file.
  • Select Decrypt password.
  • Note the Username (Administrator) and the decrypted Password.
3

Connect over Remote Desktop

Open your Remote Desktop client.

On Windows: press Win + R, type mstsc and press Enter. Enter the public IP address of your instance, then select Connect.

On macOS: open Microsoft Remote Desktop and select Add PC. Enter the public IP address, then double-click the connection to connect.

When prompted, enter Username: Administrator and Password: the decrypted value from Step 2.

If a certificate warning appears, select Continue to proceed.

4

Verify the Packer installation

Once connected, open Command Prompt from the desktop shortcut and confirm that Packer is installed.

packer -help

The command prints the usage text and the list of available commands:

Usage: packer [--version] [--help] <command> [<args>] Available commands are: build build image(s) from template console creates a console for testing variable interpolation fix fixes templates from old versions of packer fmt rewrites HCL2 config files to canonical format hcl2_upgrade transform a JSON template into an HCL2 configuration init install missing plugins or upgrade plugins inspect see components of a template plugins interact with Packer plugins and catalog validate check that a template is valid version prints the Packer version

Then check the installed version:

packer version
5

Build your first AMI

Create an example Packer template.

Create a project directory:

cmd mkdir C:\Users\Administrator\Documents\packer-project cd C:\Users\Administrator\Documents\packer-project

Create a template file named example.pkr.hcl:

cmd notepad example.pkr.hcl

Enter a basic Amazon EBS template:

```hcl packer { required_plugins { amazon = { version = ">= 1.0.0" source = "github.com/hashicorp/amazon" } } }

source "amazon-ebs" "example" { ami_name = "packer-example-{{timestamp}}" instance_type = "t3.micro" region = "us-east-1" source_ami_filter { filters = { name = "amzn2-ami-hvm-*-x86_64-gp2" root-device-type = "ebs" virtualization-type = "hvm" } most_recent = true owners = ["amazon"] } ssh_username = "ec2-user" }

build { sources = ["source.amazon-ebs.example"] provisioner "shell" { inline = ["echo 'Hello from Packer!'"] } } ```

Initialize the plugins:

cmd packer init example.pkr.hcl

Validate the template:

cmd packer validate example.pkr.hcl

Build the image. This requires AWS credentials to be configured (see the next section):

cmd packer build example.pkr.hcl

Configuring AWS Credentials

To build AWS AMIs, give Packer access to your AWS credentials using one of these methods.

Method 1: Environment variables

set AWS_ACCESS_KEY_ID=your-access-key set AWS_SECRET_ACCESS_KEY=your-secret-key set AWS_DEFAULT_REGION=us-east-1

Method 2: IAM instance role (recommended)

Attach an IAM role with the required EC2 permissions to the instance. This avoids storing credentials on the server.

Method 3: AWS CLI configuration

aws configure

Server Components

  • Packer: latest version

Filesystem Layout

The system drive C:\ holds Windows and the Packer installation.

Key directories:

  • C:\Users\Administrator: user home directory
  • C:\Users\Administrator\Documents: default working directory for templates
  • C:\Users\Administrator\AppData\Roaming\packer.d: Packer plugins directory

Troubleshooting

Packer command not found

  • Open Command Prompt and run packer version.
  • Check that Packer is in the system PATH with echo %PATH%.
  • Search for the Packer binary with where packer.

Build fails with an AWS authentication error

  • Check that your AWS credentials are configured correctly.
  • Check that your IAM permissions include EC2, S3 and AMI-related actions.
  • Check that the region is set correctly.
  • Run aws sts get-caller-identity to verify your credentials.

Build times out

  • Increase the ssh_timeout or communicator timeout in your template.
  • Check that the source AMI exists in the specified region.
  • Check that your security group allows SSH or WinRM access during the build.

Cannot connect over RDP

  • Check that the instance has passed its 2/2 status checks.
  • Check that your security group allows port 3389 from your IP.
  • Wait up to 15 minutes for the Windows password to become available.

Security Recommendations

  • Change the Administrator password after your first login.
  • Use IAM roles instead of access keys for AWS authentication.
  • Restrict RDP access. Allow port 3389 only from your own IP address.
  • Keep credentials out of templates. Use environment variables or IAM roles instead.
  • Enable Windows Update. Keep the operating system patched with the latest security updates.
  • Keep Packer updated. Check regularly for new versions and security fixes.
  • Validate templates before building. Always run packer validate before packer build.

Support

If you run into any issue with this image, contact SecureAnyCloud support:

  • Email: sales@secureanycloud.com
  • Website: secureanycloud.com
  • Support hours: 24/7, with a guaranteed 24-hour response SLA

Deploy on AWS

Launch Packer on Windows with 24/7 support from SecureAnyCloud.

View on Marketplace

Need Help?

Our support team is available 24/7.

sales@secureanycloud.com