When a resource must wait for another resource to finish
creation before being created itself. Heat adds an implicit
dependency when a resource references another resource or one of
its attributes. An explicit
dependency can also be created by the user in the template
definition.
Environment
Used to affect the run-time behavior of the template. Provides a
way to override the default resource implementation and
parameters passed to Heat. See Environments.
Heat Orchestration Template
A particular template format that is native to Heat.
Heat Orchestration Templates are expressed in YAML and are not
backwards-compatible with CloudFormation templates.
A template referenced by URL inside of another template.
Used to reduce redundant resource definitions and group complex
architectures into logical groups.
Data that can be obtained from a resource, e.g. a
server’s public IP or name. Usually passed to another resource’s
properties or added to the stack’s
outputs.
A resource provider that provides a way to communicate
data or events from servers back to the orchestration
engine. Most commonly used to pause the creation of the
stack while the server is being configured.