I’m trying to build a Phoenix app using Docker, to later deploy it to dedicated servers I followed this tutorial but used centos:7 as a base image instead because the dedicated servers are running that distro. The build process works fine, but when in shell into the container to test the release I…

If you are building it on your mac, you are most probably building the image for ARM, while your classical server is using x86-64. For cross-compilation I think you need to setup qemu locally.

But I’m creating the release on the same container where I’m trying to run it later, shouldn’t that work?

Can you post your entire Dockerfile?

It doesn’t matter where you create the release, it matters what machine creates the release. You are copying the compiled runtime from your system into the container.

FROM centos:7 as build SHELL ["/bin/bash", "-c"] ENV LANG=en_US.UTF-8 # ENV HOME=/opt/build ENV MIX_ENV prod # Set the right versions ENV ERLANG_VERSION latest ENV ELIXIR_VERSION latest RUN \ yum update -y && \ yum install -y epel-release && \ yum install -y \ autoconf \ curl \ gcc \…

Even if I do this? docker build . --file Dockerfile.build --tag topomaster docker run -it topomaster /app/_build/prod/rel/topo_master/bin/topo_master start As I understand I’m building the release inside the container, and then trying to run it inside such same container, so it should work unless …

You want to say that running the docker image on your local machine also doesn’t work?

Sorry… I don’t understand what you mean

OK, that’s a really weird way of installing Erlang and Elixir but there are likely not many officially blessed ways under CentOS – not an expert on it. Still, I am curious why didn’t you use Hex.PM’s official Docker images ? Have you also tried put CMD /bin/topo_master start at the end of the Docke…

[image] dimitarvp: CMD /bin/topo_master start I tried adding CMD /app/_build/prod/rel/topo_master/bin/topo_master start but I get the same error Still, I am curious why didn’t you use Hex.PM’s official Docker images ? The dedicated servers where we need to deploy the app are running Cento…

Elixir Programming Language Forum

erlexec: cannot execute binary file

Questions & Help Questions

dimitarvp December 24, 2023, 9:37am 12

Can’t you install already compiled Erlang for CentOS 7 btw?