packer
Packer
Packer automates the creation of Machine Images (AMI, VMDK, ISO) for multiple platforms from a single configuration. In 2025, HCL2 is the standard for configuration.
When to Use
- Immutable Infrastructure: Bake your app code into the OS image. Booting a pre-baked AMI is faster than running Ansible on boot.
- Golden Images: Create hardened, secure base images for your organization.
- Multi-Cloud: Build an AMI for AWS and a VHD for Azure from the same script.
Quick Start (HCL2)
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