You can find the source of this version on GitHub at concourse/concourse-bosh-release. It was created based on the commit
You can reference this release in your deployment manifest from the
- name: "concourse" version: "2.3.0" url: "https://bosh.io/d/github.com/concourse/concourse-bosh-release?v=2.3.0" sha1: "aa1ec7eae280ca111c56482f2eb4ce2875e8a559"
Or upload it to your director with the
bosh upload-release --sha1 aa1ec7eae280ca111c56482f2eb4ce2875e8a559 \ https://bosh.io/d/github.com/concourse/concourse-bosh-release?v=2.3.0