How to create a folder in an amazon S3 bucket using terraform

Question

I was able to create a bucket in an amazon S3 using this link.

I used the following code to create a bucket :

resource "aws_s3_bucket" "b" {
    bucket = "my_tf_test_bucket"
    acl    = "private"
}

Now I wanted to create folders inside the bucket, say Folder1.

I found the link for creating an S3 object. But this has a mandatory parameter source. I am not sure what this value have to , since my intent is to create a folder inside the S3 bucket.

Answer 1

For running terraform on Mac or Linux, the following will do what you want

resource "aws_s3_bucket_object" "folder1" {
    bucket = "${aws_s3_bucket.b.id}"
    acl    = "private"
    key    = "Folder1/"
    source = "/dev/null"
}

If you're on windows you can use an empty file.

While folks will be pedantic about s3 not having folders, there are a number of operations where having an object placeholder for a key prefix (otherwise called a folder) make life easier. Like s3 sync for example.