Is there a pulumi built in variable mentioning the update reference? I want to put a comment on a resource (Cloudflare DNS record) showing the particular update ID that deployed the record, so I can see when it changes and more easily identify which records are linked to which stack and which update/deployment. Currently I'm setting the comment to "Managed by Pulumi" but would like it to be "Managed by Pulumi. XYZ" where XYZ is some kind of unique dynamically updated ref.

@gifted-gigabyte-53859 there isn't at the moment. But if there was such a variable, the value of it would be different every run. If you would use this value as part of a description or comment field, the declarative nature of Pulumi would update that value on every run as a result. I guess that is not what you want.

@limited-rainbow-51650 thanks, actually that's exactly what I want. I want a unique identifier that updates with every

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so I can tell when the resource was last touched by Pulumi and which update did it.

@gifted-gigabyte-53859 if we do this, I guess it is our engine which should keep track of that in the state. We currently only have the creation & modification date of the resources. But if you would use a value that we make accessible, and you use this to compose a description of a resource, then this resource would be updated at every single

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run, even if there are no other input properties changed. This defeats the purpose of your intent.

True, if we were to use the modification date, this would either make the resources have a diff every update, or it would introduce a circular dependency. This would be a useful Pulumi feature to be able to conditionally add the unique 'run' or 'update' ID, or even a git hash, only if the resource is modified in another area. I guess I'll submit a feature request.

@gifted-gigabyte-53859 I'm not a product engineer, so I can't comment on effort. But I propose you open an issue in our core Pulumi Git repository: https://github.com/pulumi/pulumi/issues