In terraform, the main elementes of configuration files are (fill out missing occulsion):

<BLOCK TYPE> "<BLOCK LABEL>" "<BLOCK LABEL>" {
# Block body
<IDENTIFIER> = [...] # Argument
}

In terraform, the main elementes of configuration files are (fill out missing occulsion):

<BLOCK TYPE> "<BLOCK LABEL>" "<BLOCK LABEL>" {
# Block body
<IDENTIFIER> = [...] # Argument
}

Expression

^^ note expression can be litteral or something where value can be evaluated. Either way, final value is of one of types: string, number, bool, list, or map.

Here is example where the arguments have values that are literal string expressions:

resource "aws_instance" "example" {
  ami           = "ami-b374d5a5"
  instance_type = "t2.micro"
}