Codebuild terraform module with docker hub image

codebuild.tf

module "build" {
    source              = "git::https://github.com/cloudposse/terraform-aws-codebuild.git?ref=master"

    privileged_mode     = "true"
    build_image         = "docker.io/medwig/terraform_serverless:latest"

    source_location = "https://github.com/your/repo"
    source_type     = "GITHUB"
}