using s3 bucket arn instead of bucket name in aws terraform code pipeline definition

I want to know if there is a way to use s3 bucket arn instead of bucket name in the following aws code pipeline definition.
I have this imported with terraform and I want to reference the s3 bucket that is being created in another MWAA module.
The problem is, there is no output on the MWAA module for bucket name and it is only returning the bucket arn. I am using cloudposse to create the MWAA environment.

Here is the code for code pipeline definition:

resource "aws_codepipeline" "codepipeline" {
    name     = "airflow-pipeline-dev"
    role_arn = "<role arn>"
    tags     = {}
    tags_all = {}

    artifact_store {
        location = "codepipeline-us-east-1"
        type     = "S3"
    }

    stage {
        name = "Source"

        action {
            .....
        }
    }
    stage {
        name = "Build"

        action {
            ....
        }
    }
    stage {
        name = "Deploy"

        action {
            category         = "Deploy"
            configuration    = {
                "BucketName" = "airflow-dev-s3" # <- pass in arn instead?
                "Extract"    = "true"
            }
            input_artifacts  = [
                "BuildArtifact",
            ]
            name             = "Deploy"
            output_artifacts = []
            owner            = "AWS"
            provider         = "S3"
            region           = "us-east-1"
            run_order        = 1
            version          = "1"
        }
    }
}

I have other module for mwaa and I can only output bucket arn from there!

If you can't modify the other module to output the bucket name, you can extract the bucket name from the bucket ARN. The ARN will have the form

arn:aws:s3:::<bucket_name>

so just split the ARN on : and take the last (sixth) part of the result:

locals {
  bucketname = element(split(":", var.bucket_arn), 5) 
}

Refs:

• S3 bucket ARNs
• split function
• element function