A blueprint that contains a machine component specifies the workflow used to provision a machine and includes information such as CPU, memory, and storage. Machine blueprints specify the workflow used to provision a machine and include additional provisioning information such as the locations of required disk images or virtualization platform objects. Blueprints also specify policies such as the lease period and can include networking and security components such as security groups, policies, or tags.
A machine blueprint typically refers to a blueprint that contains only one machine component and the associated security and networking elements. It can be published as a standalone blueprint and made available to users in the service catalog. However, published machine blueprints also become available for reuse in your design library, and you can assemble multiple machine blueprints, along with Software components and XaaS blueprints, to design elaborate application blueprints for delivering catalog items that include multiple machines, networking and security, software with full life cycle support, and custom XaaS functionality to your users.
An example of a standalone virtual machine blueprint might be one that specifies a Windows 7 developer workstation with one CPU, 2 GB of memory, and a 30 GB hard disk. A standalone cloud machine blueprint might specify a Red Hat Linux web server image in a small instance type with one CPU, 2 GB of memory, and 160 GB of storage.
Blueprints can be specific to a business group or shared among groups in a tenant, depending on the entitlements that are configured for the published blueprint .
You can add custom properties to a machine component in a blueprint to specify attributes of a machine or to override default specifications. You can also add property groups as a convenience for specifying multiple custom properties.