index.rst

Stack policies

Using stack policies

To prevent stack resources from being unintentionally updated or deleted during a stack update you can use stack policies. Stack policies apply only during stack updates and should be used only as a fail-safe mechanism to prevent accidental updates to certain stack resources.

It's suggested to create a stack_policies directory below the corresponding stack directory:

blueprints/
  stack1/
    stack_policies/
    blueprints.yml
    ...
  stack2/
    stack_policies/
    blueprints.yml
    ...
  ...

You have to tell StackFormation where it could find the stack policy.

Example:

blueprints:
  - stackname: 'my-stack'
    template: 'templates/my-stack.template'
    stackPolicy: 'stack_policies/my-stack.json'