variable support in porter.yaml

[ffoysal]

Is there a way to do variable references in porter.yaml file. for example in the porter.yaml

name: SampleApp
version: 0.1.0
description: "Sample app cnab bundle"
invocationImage: ffoysal/hello-invocation:0.1.0
tag: ffoysal/hello-bundle:0.1.0

in this code snippet if we could declare 0.1.0 in variable and reference that in three places would be good for us.

[carolynvs]

We don't have variable support yet. That would come in #1002. However the invocationImage field is optional now (and will be deprecated in the next release) and the tag no longer requires you to put the version in it, so the manifest can now look like this

name: SampleApp
version: 0.1.0
description: "Sample app cnab bundle"
tag: ffoysal/hello-bundle

Vaughn is working on defaulting the tag as well in a new enhancement proposal too. But I hope this helps for your current bundles!

[carolynvs]

Closing now that we have workarounds for most of this, such as porter build --version --name, porter publish --registry --tag --reference, and the ability to set custom metadata and reference it with templating (#1899).

If there is additional scenarios we need to support, let's open a new issue.