Creating pylith-devenv Docker image

Setup

Setup emulation libraries (taken from https://docs.docker.com/build/building/multi-platform/)

# Install emulation packages
sudo apt install qemu qemu-user-static binfmt-support

# Install binfmt stuff
docker run --rm tonistiigi/binfmt --install all

# Verify the F flag is set
cat /proc/sys/fs/binfmt_misc/qemu/aarch64

# Try running container using emulation
docker run --rm -ti --platform=linux/arm64 ubuntu:24.04 /bin/bash

Create a multiple-architecture builder, multiarch.

docker buildx create --name multiarch --driver docker-container --bootstrap

Note

You may need docker-credential-pass in your PATH.

Build Docker image

Build and push the Docker image. This will create a docker image with layers for both architectures. When a user pulls the image from the registry, only the layers for that computer’s architecture are downloaded.

No custom certificates

# Select the multiarch builder
docker buildx use multiarch

# Build and push the image
docker buildx build --platform linux/amd64,linux/arm64 -t ghcr.io/geodynamics/pylith_installer/pylith-devenv --push -f docker/pylith-devenv .

Using custom certificates

# Select the multiarch builder
docker buildx use multiarch

# Build using DOI certs
docker buildx build --platform linux/amd64,linux/arm64 -t ghcr.io/geodynamics/pylith_installer/pylith-devenv --build-arg BUILD_ENV=certs-doi --push -f docker/pylith-devenv .