6.2

Specifying Custom Properties
You can use custom properties to control machine provisioning. A fabric administrator can use custom
properties when they create or edit reservations. A tenant administrator or business group manager can
specify custom properties when they create or edit blueprints.
Any property specified in a blueprint overrides the same property specified in the incorporated build
profile. For example, a blueprint that contains a particular build profile might override the US English
settings in the profile with UK English settings. This arrangement ensures that the number and complexity
of blueprints remain manageable.
A custom property can optionally require that the user specify a property value when they create a
machine request.
Custom property names are typically case-insensitive. Property values are typically case-sensitive.
Custom properties cannot contain leading or trailing spaces.
For related information about using custom properties on blueprints and in build profiles, see IaaS
Configuration in vRealize Automation documentation.
Order of Precedence for Custom Properties
When the same property exists in more than one source, a specific order is followed when applying
properties to the machine.
You can add custom properties that apply to provisioned machines to the following elements:
n
A reservation, to apply the custom properties to all machines provisioned from that reservation
n
A business group, to apply the custom properties to all machines provisioned by business group
members
n
A global or local blueprint, to apply the custom properties to all machines provisioned from the
blueprint
n
Build profiles, which can be incorporated into any global or local blueprint, to apply the custom
properties to all machines provisioned from the blueprint
n
A machine request, if you are a business group manager, to apply the custom properties to the
machine being provisioned
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The applicable approval policy, if any exist and if advanced approval support is enabled, to require
approvers to provide the values to be applied to the machine being approved
The full order of precedence for custom properties is that any property value specified in a source later in
the list overrides values for the same property specified in sources earlier in the list. The order is shown in
the following list:
1 Build profile
2 Blueprint
3 Business group
Custom Properties Reference
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