Terraform 0.11.x loop through a map and create a s3 bucket with objects with specific content based on a maps --> key, value

example_s3_bucket_objects.tf

## construct a map with object keys and values
variable "object_list" {
  type = "map"
  default = {
    content1 = "this is example content 1",
    content2 = "this is example content 2"
  }
}

## construct the bucket name
variable "bucket_name" {
  type = "string"
  default = "testbucket"
}

## create the bucket
resource "aws_s3_bucket" "testbucket" {
  bucket = "${var.bucket_name}"
  acl = "private"
}

## loop through the items in the map object_list and create the object one by one
resource "aws_s3_bucket_object" "bucket_objects" {
  count = "${length(var.object_list)}"
  bucket = "${var.bucket_name}"
  key = "${element(keys(var.object_list), count.index)}" # lookup the key name based on the current count index.
  content = "${lookup(var.object_list, "${element(keys(var.object_list), count.index)}")}" # lookup the key's value based on a double interpolation.
}