How to define default value for map variable in Terraform?

Question

My input.tfvars file has the values for map variable named project as below:

project = {
name = "sampleproject"
team = "Code"
}

The definition for the same variable project for default values in variables.tf file is below:

variable "project"{
type = map(string)
default ={
name = "defaultproject"
team = "defaultteam"
}
}

Is the syntax for defining default variables is correct? or does the key also needs to be provided in quotes as below:

variable "project"{
type = map(string)
default ={
"name" = "defaultproject"
"team" = "defaultteam"
}
}

Google search provided answers with both of the above options for defining default variables for a map, hence I am asking here for clarification.

Matthew Schuchard · Accepted Answer · 2022-12-22 15:47:27Z

2

Keys in HCL2 Maps and Objects must be strings, and therefore any key is implicitly cast to String, and therefore does not need the explicit syntax for casting/constructing as a string i.e. "".

Note the documentation confirms keys must be String type.

answered Dec 22, 2022 at 15:47

Matthew Schuchard

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