CODEWITHSUNDEEP
terraform
swagrov
swagrov

Reputation: 1460

Terraform for loop is not using variable names

I have this expression in the terraform console:

jsonencode([for x in ["a", "b"] : { x = "hello" }])

It gives this output:

[{"x":"hello"},{"x":"hello"}]

Why it is interpreting "x" literally and not as a variable? This is my desired output:

[{"a":"hello"},{"b":"hello"}]

Upvotes: 1

Views: 204

Answers (1)

Marcin
Marcin

Reputation: 238887

This happens because unquoted strings in this context are considered as map's keys:

The keys in a map must be strings; they can be left unquoted if they are a valid identifier, but must be quoted otherwise.

If you want to treat x as variable you either use it in quotes or parentheses:

jsonencode([for x in ["a", "b"] : { (x) = "hello" }])

or

jsonencode([for x in ["a", "b"] : { "${x}" = "hello" }])

Upvotes: 3

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