Hello everybody, I’ve made a first attempt at building an OCaml application into a Docker image using Openshift’s source-to-image . The result is kinda messy because of my poor understanding of the OCaml building and deploying process, but I think it could become promising if I keep digging. The b…

Perhaps I am doing something wrong, but I follow (what I think is) a simple process, using the Alpine Linux images. There are no “external” tools. Make a base Alpine Docker build image. Install C compiler, OPAM, and some basic OPAM packages that you think everything will need (ocamlfind, core, etc…

Yes, this is more or less the workflow given by Openshift in the documentation, and this is what I intend to do. When taking a closer look at the docs, I found this which would allow me to do exaclty that. I’m going to give it a shot, but I still wonder how I can non-interactively locate the resul…

Latest versions of Docker come with “multi-stage” builds, e.g. you don’t need @antron ’s point 4. and 5. See for instance how we do with DataKit: https://github.com/moby/datakit/blob/master/Dockerfile At the end of that file, there is a new FROM keyword which generate a fresh “stage” where we copy t…

Oh, this is very interesting, thanks a lot! In the meantime, I’ve managed to use to use S2I’s feature I mentioned earlier (which does pretty much the same thing as the multi-stage builds) and my final image now weighs 15MB. :slight_smile: In case you want to take a closer look, my builder image is…

samoht https://discuss.ocaml.org/u/samoht June 6 Latest versions of Docker come with “multi-stage” builds, e.g. you don’t need @antron https://discuss.ocaml.org/u/antron ’s point 4. and 5. See for instance how we do with DataKit: Moby · GitHub datakit/blob/master/Dockerfile Interesting! I ca…

17.05, see https://docs.docker.com/engine/userguide/eng-image/multistage-build/

According to the docs , it’s from 17.05. :slight_smile:

In case you’re interested, I’ve made a writeup about OCaml and Docker multi-stage builds :slightly_smiling_face: You can see it here: [image] Lightweight OCaml Docker Images with Multi-Stage Builds Ecosystem Hi! I’ve written an article of me exploring Docker multi-stage b…

You are maybe interested into Habitat, since it can export to Docker and offers a easier way to build packages: https://opensolitude.com/2017/03/08/build-docker-containers-from-scratch-with-habitat.html#why-build-docker-images-with-habitat

Make a base Alpine Docker build image. Install C compiler, OPAM, and some basic OPAM packages that you think everything will need (ocamlfind, core, etc). The goal here is to reuse this image as much as possible for building your various applications, and not have to pay building it all again. My cu…

Source-to-image OCaml builder

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bobbypriambodo September 3, 2017, 2:03pm 9

In case you’re interested, I’ve made a writeup about OCaml and Docker multi-stage builds You can see it here:

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Source-to-image OCaml builder

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