Bakery

Since the concept of Immutable Infrastructure is core to Spinnaker, Spinnaker includes an image bakery powered by Hashicorp’s Packer to help you produce machine images.

For getting started, the default configuration (no changes required) provides you with enough Packer templates & base machine image options to learn how the system works. However, once you want to start customizing the bake process or use artifacts not supported by the default configuration, these documentation pages will describe how to further configure the bakery.

There are two types of configuration of the Bakery:

• Packer Templates
• Image Provider Configuration

Packer Templates

Every time you initiate a bake using Spinnaker, Spinnaker invokes a packer template with a mix of variables provided by you, the Pipeline you are currently executing, and Spinnaker itself. All of the default packer templates are versioned alongside Rosco, the image bakery service here . If want to override/include a new template, place it into ~/.hal/$DEPLOYMENT/profiles/rosco/packer/ ($DEPLOYMENT is typically default, read more here ). Any local scripts/artifacts required by that template can also be placed into that directory, and referenced relative to the configDir Packer variable that will automatically be set.

You can then use the Template File Name field under Advanced Options in the bake stage UI to refer to your custom template:

Image Provider Configuration

The following providers support configuring their image bakery:

• Google Compute Engine
• Oracle Cloud Infrastructure