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Packer Configuration

Configure how Atmos executes Packer commands for building machine images, including AMIs, VM images, and container images.

Configuration​

atmos.yaml

components:
  packer:
    # Executable to run
    command: packer

    # Base path to Packer components
    base_path: components/packer

Configuration Reference​

command

Specifies the executable to run for Packer commands. Defaults to packer.

Examples:

  • packer - Use Packer from PATH
  • /usr/local/bin/packer - Use specific binary
  • /usr/local/bin/packer-1.9 - Use specific version
base_path

Directory containing Packer component directories. Supports absolute and relative paths.

Each subdirectory should contain Packer templates (.pkr.hcl files) for building images.

Component Directory Structure​

Packer components follow the same directory structure as other component types:

components/
└── packer/
    ├── ami-builder/
    │   ├── main.pkr.hcl
    │   └── variables.pkr.hcl
    └── docker-image/
        ├── main.pkr.hcl
        └── variables.pkr.hcl

Example Configuration​

atmos.yaml

components:
  packer:
    command: packer
    base_path: components/packer

With this configuration, you can run Packer commands through Atmos:

# Build an AMI
atmos packer build ami-builder -s prod

# Validate a Packer template
atmos packer validate docker-image -s dev