Modifying a deployed middleware template instance
Managed services middleware template modification
You can redeploy an existing instance after selecting the desired template version and modifying the input parameters. Instructions for doing so can be found on the modifying a deployed template instance. There are a few restrictions with modifying the middleware templates. Those restrictions are listed here.
Chef assets cannot be updated
The Chef cookbooks in the Managed services (CAM) middleware templates are not written to support modification after deploy. This fits with the cloud model of quickly destroying and recreating entities as needed. When attempting to modify a deployed middleware instance, you will see the node properties are not able to be edited.
The properties are not editable due to a property in the template's CAM variables file called immutable_after_create. If you are writing your own templates and would like to prevent properties from being modified after deploy, then the immutable_after_create property is what you would use. Similarly, if you have cloned the middleware templates to your own git repository and would like to be able to modify these parameters, you would update the immutable_after_create property in the template's CAM variables file.
For more information on Managed services variables, see Template variables modification