OCaml and OPAM Docker scripts

This repository uses the OCaml Dockerfile library to generate a series of Dockerfiles for various combinations of OCaml and the OPAM package manager. There are a set of small scripts that output all the combinations and are easy to modify, extend or duplicate for your own use.

opam install docker-infra

They are all executed directly as a shell script by using the OCamlScript engine. The installed scripts are:

• dockerfile-ocaml: installs base OCaml packages
• dockerfile-opam: installs OPAM and OCaml switches
• dockerfile-archive: builds an OPAM source package archive and HTTP server
• dockerfile-gen: builds a dev environment with installed OPAM packages

Docker Repostories

The generated Dockerfiles are split into a sequence of containers that build on each other, making it easy to pick the ones you need for your own purposes. The default behaviour is to output the files into independent Git repositories:

• docker-ocaml-build is the base OCaml compiler added on top of various Linux distributions.
• docker-opam-build layers the OPAM package manager over this image, and initialises it to the central OPAM remote. The opam-depext plugin is also globally installed, so external library dependencies can also be automatically installed in all of the OS variants with a single command (opam depext -ui ssl).

There are automated builds triggered from pushes to these repository from the Docker Hub:

• docker pull ocaml/ocaml (link)
• docker pull ocaml/opam (link)