# Distribution specific Dockerfiles ## Requirements ### Dockerfile name The format should be `Dockerfile.{distribution name}`. ### Keep your images up-to-date Use the distribution package manager to keep your image up-to-date. ### REPOSITORY Add a `REPOSITORY` comment with the URL to your GitHub repository where the Dockerfile is present. `# REPOSITORY ` ### MAINTAINER Add the `MAINTAINER` instruction and your contact details, GitHub aliases are acceptable. For an example Dockerfile, please refer to `Dockerfile.alpine`.