Support for at least some simple statements like IF and FOR

[typoworx-de]

Today I found pulumi and I really like the way Pulumi works.

As far as I understand Pulumi YAML only supports very "rudimentary" templating, I really would like to see at least some simple statements like IF and FOR to use in any line where it seems to be needed. I think about some expressions like those used by Jinja2 [https://palletsprojects.com/p/jinja/].

There already seems to be an implementation for Golang [https://github.com/noirbizarre/gonja] which I think could technically fit to Pulumi as it also uses Golang?

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[mikhailshilkov]

Hi @typoworx-de - great to have you join the Pulumi community!

For now, we decided not to add loops and conditionals to YAML:

• You could use external YAML templating tools to generate Pulumi YAML if you want to. See this Cue example.
• If your YAML programs grow beyond what's expressible with our current constructs, it may be a sign that you should switch to another Pulumi language

I will leave the issue open for future discussions.

[Frassle]

If you wanted to use jinja you could use a standalone jinja compiler such as https://github.com/mattrobenolt/jinja2-cli and put that as your runtime: compiler: option in the Pulumi project.

[GhzTNFj2b19HRNAJBDKSGFYqIctv4]

I would be very much interested in this feature. I generally prefer YAML as it's easier to read, it does not require package management, language runtime. The only downtime of yaml is they can become long but if we get some IF/FOR/etc this would help a lot.

[jondkelley]

Ansible has a when: structure for definitions which can take jinja style conditions. If there was a way to add a similar construct to Pulumi then it would be incredibly useful.

I know Pulumi is pushing language bindings but the yaml runtime could be much more powerful.

[nafg]

It finally passes environment to the compiler, including PULUMI_ORGANIZATION, PULUMI_PROJECT, PULUMI_STACK, and PULUMI_CONFIG. However PULUMI_CONFIG masks secrets; is it possible to change that?