I'm starting to write some templates and ran into some trouble making a template config with a default for aws:allowedAccountIds, since it's a list. • if you specify the default as a plain scalar,

pulumi up

fails with

Attribute must be a list

• if you try to specify the default as a list,

pulumi new

fails with

cannot unmarshal !!seq into string

The workaround I found that does work, is to put the list (which in my case is always just a single account id) in quotes:

template:
  config:
    aws:allowedAccountIds:
      description: aws account ids to deploy to (must be in brackets)
      default: '[1234567890]'

If you accept the default, it shows up in the stack config as

config:
  aws:allowedAccountIds: '[1234567890]'

which looks goofy, but works. Also, users of the template must still put their account id in brackets if they're not using the default account id, which is not great. Anyone have a better solution?

does this work by chance?

template:
  config:
    aws:allowedAccountIds:
      description: aws account
      default:
        - 1234567890

No, that gives you the

cannot unmarshal !!seq into string

error I mentioned

yeah that certainly doesn't feel good but I see how that would work if you have no choice but to give it a string as input 😕

🤷‍♂️

yeah lol

it's other developers so I think they'll be fine, they'll just feel slightly uncomfortable lol

hahahah yeah