Add "Region" as argument reference for Data Source: aws_s3_bucket

[GouravIN]

It would be nice if we can have region reference when we are looking for a S3 bucket in data source. If the S3 bucket is in another region and your provider is defined for a different region, then getting the following error.

In my case: S3 bucket is created in: us-east-1

and provider has region = "us-west-2". I wanted to get the ARN of the bucket to get and use in the current terraform definition.

My Error:

data "aws_s3_bucket" "openvpn_bucket" { bucket = "seceng-terraform-statefiles" }

Error:

╷ │ Error: Failed getting S3 bucket (seceng-terraform-statefiles): BucketRegionError: incorrect region, the bucket is not in 'us-west-2' region at endpoint '' │ status code: 301, request id: , host id: │ │ with data.aws_s3_bucket.openvpn_bucket, │ on data.tf line 15, in data "aws_s3_bucket" "openvpn_bucket": │ 15: data "aws_s3_bucket" "openvpn_bucket" { │ ╵

[justinretzolk]

Hey @GouravIN 👋 Thank you for taking the time to raise this! One option to achieve this functionality with the provider today would be to use a provider alias to allow you to access the separate region. The configuration would look something like the below configuration. Would this satisfy your needs?

provider "aws" {
  alias = "usw2"
  region = "us-west-2"
}

data "aws_s3_bucket" "openvpn_bucket" {
  provider = aws.usw1
  bucket = "seceng-terraform-statefiles"
}

[xsnrg]

The suggestion will not work in a module with for_each. Allowing a data source to query another region would be wonderful.

[Samrose-Ahmed]

How about if we are trying to discover the region at deploy time and don't know it so can't create a provider ahead of time,

[christian-elsee]

How about if we are trying to discover the region at deploy time and don't know it so can't create a provider ahead of time,

oh snap.. seriously how is this not a thing? Orchestrating across regions, accounts, etc is not an edge case.

[65156]

this feature shouldnt just be for aws, all clouds need this, especially google cloud and ibm, which dont have region restricted global services or vpcs...