Hi there! I'm super new to Pulumi (today is my first time using it) and I'm not sure if this question should go here or somewhere more general. I'm still trying to figure out how the

Pulumi.<some-name>.yaml

files work. Right now, I'm doing an experiment and created three separate yaml files:

Pulumi.yaml

Pulumi.dev.yaml

Pulumi.prod.yaml

I added a specific variable to the

Pulumi.dev.yaml

and

Pulumi.prod.yaml

ones called

app:environment

(setting the values to

dev

and

prod

, respectively) and then added this bit of code to my stack class so I can see the output:

var config = new Config();
var env = config.Require("app:environment");
Console.WriteLine(env);

Now, when I run

pulumi up

for my

dev

stack, it gives me the following error:

Missing Required configuration variable 'dotnettestservice:app:environment'

It looks like it's looking for it in

Pulumi.yaml

, not

Pulumi.<env>.yaml

. I have

dotnettestservice

defined under the

name:

parameter in my

Pulumi.yaml

, not in

Pulumi.dev.yaml

, nor

Pulumi.prod.yaml

. When I do a

pulumi config get app:environment

, it gives me the correct value of

dev

. My question is, am I allowed to have different required parameters based on the stack? Do I have to have a separate

name

parameter in each of these so it doesn't try to use the

Pulumi.yaml

one? Also, feel free to let me know if I'm not making sense and need to clarify anything (or if I'm going about this the completely wrong way) 😅 I appreciate any insight you might have ❤️

Hi Olga, welcome! Every config value is prefixed with a namespace. The default namespace is the same as you project name. So,

new Config

looks for config values named

dotnettestservice:foo

. You should either a) Change you

yaml

files to contain settings called

dotnettestservice:environment

b) Leave the config files as-is and change your code to

var config = new Config("app"); config.Require("environment");

🤦‍♀️ That makes so much sense. I definitely misinterpreted the documentation. It worked 😄 THANK YOU!

I feel like it’s a common misunderstanding. We should probably improve our docs. Feel free to fire an issue if you see a part that’s particularly confusing. For sure, don’t feel bad about yourself!