Stack output resolver

Stack output resolver reads the parameter value from a stack output of another stack configured within the same Takomo project. The source stack automatically becomes the target stack's dependency. Takomo reads the output value using the credentials associated with the source stack.

NOTE

If you need to read outputs of stacks that are not configured in the same Takomo project, you can use external stack output resolver.

Properties

Here are the properties of the stack output resolver:

Key Required Type Description
resolver yes string Resolver name, this must be stack-output.
stack yes string Stack path of the source stack. Can be an absolute or a relative stack path.
output yes string Name of the stack output whose value is read.
confidential no boolean Conceal the resolved parameter value from logs, defaults to false.
immutable no boolean Mark the parameter as immutable, defaults to false.

Example

Say, we have two stacks: vpc.yml and security-groups.yml. The former creates a VPC and exposes its id in the stack outputs with a name VpcId, and the latter uses the VPC id to create some security groups.

The directory structure looks like this:

.
├─ stacks
│  ├─ vpc.yml
│  └─ security-groups.yml
└─ templates
   ├─ vpc.yml
   └─ security-groups.yml

In security-groups.yml stack configuration we use the stack-output resolver to read the value for the VpcId parameter like so:

stacks/security-groups.yml
parameters:
  VpcId:
    resolver: stack-output
    stack: /vpc.yml
    output: MyVpcId
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