Hi, as an input to a CloudFormation template, it t...
# getting-startedi
important-sandwich-62391
05/06/2021, 9:24 PMHi, as an input to a CloudFormation template, it takes an array of string Subnet IDs, as a parameter to the Template. (can’t control this).
So, I have my two subnet objects, but I can’t figure out how to reasonablly combine them into a single StringInput?
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// not valid, but basically what I want to do:
strings.Join([]string{subnetA.ID(), subnetB.ID()}, ",")
// howto convert this into "foo,bar" (comma separated string)
subnetsIDs := pulumi.StringArray{subnetA.ID(), subnetB.ID()}.ToStringArrayOutput().ApplyT(func(input []string) string {
return strings.Join(input, ",")
})
// subnetsIDs is not a StringInput??important-sandwich-62391
05/06/2021, 9:27 PMexample of trying to use it with the CF template:
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err := cloudformation.NewStack(ctx, "thing", &cloudformation.StackArgs{
TemplateUrl: pulumi.String(stack_5_3_1),
Parameters: pulumi.StringMap{
"Subnets": subnetsIDs, // this isn't a valid type for StringMap
},
})important-sandwich-62391
05/06/2021, 9:28 PMoh, I think.. this is the All() use case.
important-sandwich-62391
05/06/2021, 9:32 PMmaybe?
important-sandwich-62391
05/06/2021, 9:32 PMhmm
important-sandwich-62391
05/06/2021, 10:14 PMgross?
but kinda works?
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func Join(args []interface{}, sep string) pulumi.StringOutput {
// gross? but works?
format := strings.TrimSuffix(strings.Repeat("%s,", len(args)), ",")
return pulumi.Sprintf(format, args)
}3 Views