What’s the best way to create “presets” in Pulumi ...
# generalr
ripe-knife-11053
05/12/2021, 5:37 PMWhat’s the best way to create “presets” in Pulumi in Python? For example, I want to create GCP projects with certain defaults (e.g. don’t create the default network), but I still want to allow end users to override those defaults and at the same time dont’ want to maintain a ton of boilerplate if I don’t have to.
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billowy-army-68599
05/12/2021, 5:40 PM
I think you're looking for a Component Resource:
https://www.pulumi.com/docs/intro/concepts/resources/
You can define a class with sane defaults that can be overridden
billowy-army-68599
05/12/2021, 5:40 PM
I have an example somewhere if you need one
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shy-football-10348
05/12/2021, 5:41 PMi’d love to see an example!
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billowy-army-68599
05/12/2021, 5:42 PM
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ripe-knife-11053
05/12/2021, 6:12 PMAh, that looks like what I’m after. Thanks!
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billowy-army-68599
05/12/2021, 6:17 PM
you can either import them locally from a file, or publish them to pypi to reuse them
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ripe-knife-11053
05/12/2021, 6:43 PM@billowy-army-68599 Is there any way to skip defining all the arguments to a particular resource again?
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billowy-army-68599
05/12/2021, 6:43 PM
what do you mean?
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ripe-knife-11053
05/12/2021, 6:44 PMLike I want my resource to be a drop-in replacement to the
gcp.organizations.Projectripe-knife-11053
05/12/2021, 6:44 PMI just want the ability to change the default values.
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billowy-army-68599
05/12/2021, 6:46 PM
i'm finding it hard to visualize what you're saying, would you mind sharing some pseudo code?
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ripe-knife-11053
05/12/2021, 6:47 PMAre you familiar with Ansible at all?
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billowy-army-68599
05/12/2021, 6:48 PM
not in a long time...
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ripe-knife-11053
05/12/2021, 6:49 PMHah
ripe-knife-11053
05/12/2021, 6:49 PMI wish I was less familiar.
ripe-knife-11053
05/12/2021, 6:49 PMI basically want this: https://docs.ansible.com/ansible/latest/user_guide/playbooks_module_defaults.html
ripe-knife-11053
05/12/2021, 6:50 PMI want the ability to specify a set of default arguments to Resources so that I:
1) don’t have to maintain an entire resource definition
2) Don’t clobber user-specified values
3) Can retroactively go back into Pulumi code and insert my custom modules with as little friction as possible.
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billowy-army-68599
05/12/2021, 6:50 PM
ahh, yeah we don't have that as a built in, you'd have to specify the values for your class and then pass them through to the resources
billowy-army-68599
05/12/2021, 6:51 PM
actually let me get someone smarter to chime in, standby
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ripe-knife-11053
05/12/2021, 6:52 PMThis is where I am almost envious of monkey patching in Ruby. 😄
ripe-knife-11053
05/12/2021, 6:52 PMAnd then I realize that those are Bad Thoughts.
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red-match-15116
05/12/2021, 6:53 PMI think you’ll have to create a wrapper function with the defaults defined to do that.
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ripe-knife-11053
05/12/2021, 6:54 PMYeah, that’s sort of what I’m trying to avoid.
ripe-knife-11053
05/12/2021, 6:55 PMBecause it’s just a ton of Boilerplate.
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red-match-15116
05/12/2021, 6:55 PMwell, don’t know what to tell you friend.
red-match-15116
05/12/2021, 6:58 PMMaybe you’ll come up with a better way and then you can tell us about it
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ripe-knife-11053
05/12/2021, 6:59 PMThanks for your help