Within a template, the builders section is an array of objects, describing the list of machine images to build (and where possible publish). For example if you wished to build an AMI image for Amazon EC2 and another for Microsoft Azure, you would specify a builder for each.
The information may include H/W requirements, authentication information (known as a cloud account) or where to upload and register the machine image after the build is complete.
Please refer to the specific machine image format for the mandatory and optional attributes.
A Word on Cloud Accounts
For "cloud" machine images, for example Amazon EC2, Azure CloudStack, OpenStack, Flexiant and Eucalyptus, the builder requires account information to the cloud environment. Information from the builder is used to correctly generate the machine image (for example AMI images for Amazon EC2 requires to have certain certificates embedded into the machine image) and to upload and register the machine image into the correct region, zone or datacenter.
The cloud account information can be part of the builder section, however as this includes sensitive information, hammr provides other mechanisms to include this information in the builder section. A safer way is to store this information in a separate file (JSON or YAML) and create the cloud account using account create; then reference the account name in the builder.
Please refer to the specific machine image format for the cloud account options and examples.
builders-abiquo builders-aws builders-cloudstack builders-euca builders-flexiant builders-gce builders-azure builders-k5 builders-nimbula builders-openstack builders-outscale builders-suse-cloud builders-vcd
builders-citrix-xen builders-hyper-v builders-kvm builders-ovf builders-qcow2 builders-raw builders-vagrant builders-vbox builders-vhd builders-vmware-workstation builders-vsphere builders-xen
builders-docker
builders-iso