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#general
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m
most-lighter-95902
12/02/2021, 12:58 AMI was told that I can do
new StackReferenceresource 'urn:pulumi:app-staging::ckc-test::pulumi:pulumi:StackReference::seunggs/ckc-test/app-build' registered twice (read and read)pulumi upb
billowy-army-68599
12/02/2021, 1:15 AM
it needs to have a unique name, can you share your code?
m
most-lighter-95902
12/02/2021, 2:57 AM Copy code
const main = async () => {
const stack = pulumi.getStack()
const checkStackExists = (qualifiedStackName: string) => {
try {
const stackRef = new pulumi.StackReference(qualifiedStackName)
return true
} catch (err) {
return false
}
}
const checkAppBuildStackExists = () => {
return checkStackExists(`${organization}/${project}/app-build`)
}
const getAppBuildStackOutputs = () => {
const appBuildStackRef = new pulumi.StackReference(`${organization}/${project}/app-build`)
const appEcrImageUrl = appBuildStackRef.getOutput('imageUrl') as pulumi.Output<string>
return appEcrImageUrl
}
if (stack === 'app-staging' || stack === 'app-prod') {
const appEcrImageUrl = checkAppBuildStackExists ? getAppBuildStackOutputs() : ''
const { AppStack } = await import('./pulumi/stacks/app')
const appStackOutput = new AppStack('app-stack', {
imageUrl: appEcrImageUrl,
}, { provider: k8sProvider })
return appStackOutput
}
}
export = mainThis is roughly the code - not sure what you mean by unique name? I thought you get stack reference by stack’s fully qualified name which is unique of course (i.e. no two stacks with the same name)
@billowy-army-68599
Thanks for looking into this BTW
@billowy-army-68599 still blocked by this - any idea why this is happening?
b
billowy-army-68599
12/02/2021, 11:18 PM
sory I'm at re:invent this week so slow to respond. It's working by design, you'll need to modify your code to only populate the stack ref once
m
most-lighter-95902
12/03/2021, 3:15 AMOh right - re:invent. No worries. So you CANNOT do
new StackReferenceSo if this is the case, any way to check if the stack exists? The problem is I cannot call
new StackReferencea
ambitious-father-68746
12/06/2021, 10:11 PMYou can do multiple StackReferences if you specify a unique identifier as a separate parameter. StackReference acts as a resource, so you can't declare it twice.
Here's an example in Python:
Copy code
stack = pulumi.StackReference("unique_id_1", stack_name="blabla")
same_stack_again = pulumi.StackReference("unique_id_2", stack_name="blabla")So I'm referencing the stack
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