Build images on arm machines

[DeBr4nd]

Hi, I would like to suggest a change to the makefile in the /containers folder.

The way the file is written, when you build images on an ARM instruction set machine, such as a Mac with an Apple silicon processor (e.g. M3 Pro) the docker engine aligns and tends to download versions you applications on an arm64 basis (e.g. when apt-get install -y --no-install-recommends openjdk-17-jre-headless happens).

Doing so creates 2 problems:

• It installs dependencies in non-canonical paths;
• Uses arm-based software but then it will have to run on an x86/64-based k8s cluster.

That is why it is worth adding these lines to the Makefile:

ARCH_TARGET ?= linux/amd64

$(IMAGE_TARGETS) :
	$(DOCKER_CLI) buildx build $(BUILD_ARGS) --platform $(ARCH_TARGET) --tag $(BUILD_TAG_ARGUMENT) $(IMAGES_DIR)/$(@) --load

This way we force docker/podman to use x86 instructions instead of arm instructions.

I solved the problem this way. I hope I was helpful.

Max