Dockerfile for dpl-heroku image
Based on ruby:2.6-alpine, this image has the exact things needed for dpl to do heroku deployments using the Heroku API
The image is publicly available on Docker Hub at https://hub.docker.com/r/ceorcham/dpl-heroku
- DPL: https://github.com/travis-ci/dpl
- Heroku Platform API: https://devcenter.heroku.com/articles/platform-api-quickstart
- GitLab using dpl as deployment tool: https://docs.gitlab.com/ce/ci/examples/deployment/