Docker build is broken

[vorburger]

Building the Docker image for this project, following our documentation on https://github.com/openMF/community-app#docker, currently fails.

Locally for me, trying right now, the error is (I'm using podman instead of docker so your error could be slightly different):

$ docker build -t mifos-community-app .
Emulate Docker CLI using podman. Create /etc/containers/nodocker to quiet msg.
STEP 1: FROM timbru31/ruby-node:2.7 AS builder
STEP 2: RUN mkdir /usr/src/app
2020-11-03T20:24:56.000558796Z: exec container process `/bin/sh`: Exec format error
STEP 3: FROM nginx:1.19.2
Error: error building at STEP "RUN mkdir /usr/src/app": error while running runtime: exit status 1

On Docker Hub it also fails right now, the error there is:

Starting build of index.docker.io/openmf/community-app:latest...
Step 1/16 : FROM timbru31/ruby-node:2.7 as builder
---> 07ca45e44f08
Step 2/16 : RUN mkdir /usr/src/app
---> Running in 58d3f788dc27
�[91mstandard_init_linux.go:211: exec user process caused "exec format error"
�[0m
Removing intermediate container 58d3f788dc27
The command '/bin/bash -o pipefail -c mkdir /usr/src/app' returned a non-zero code: 1

[vorburger]

I've figured out what's causing this... it's an issue that's not completely trivial to spot in the timbru31/ruby-node:2.7 base image.

I'll open an issue with details about it in that project. It needs to either be fixed there - or we change our base image.

[vorburger]

This problem was just fixed in timbru31/docker-ruby-node#564 (very, impressive; thanks again @timbru31)