Heat/Environments
What is an Environment?
I see an Environment as a container for anything that affects the behaviour of the Template.
- So parameters can be written into an environment file or automatically inserted if you pass them on the cli.
- You define any non-default Providers in the Environment
- You can define any extra/non-keystone credetials in the Environment
Template | Static archetectural design of your application |
Environment | Specific details that affect the instantiation of the Template |
Stack | Template + Environment |
Example
Options: #Parameters and other global options InstanceType: m1.xlarge DBUsername: angus DBPassword: verybadpass KeyName: heat_key Credentials: rax_angus: username: myusername api_key: 012345abcdef67890 Resources: # resource scoped options DatabaseServer: Provider: RACKSPACE Credentials: rax_angus WebServer: Provider: RACKSPACE Credentials: rax_angus