generate-manifests

#!/usr/bin/env bash
#
# Usage: ./push-all <registry> <image-prefix> <image-tag>
set -euo pipefail

registry=${1:-docker.io}
image_prefix=${2:-nixpkgs}
image_tag=${3:-latest}
system_name=${NIX_SYSTEM_NAME:-x86_64-linux}

releases_json=$(nix-instantiate --strict --argstr system "$system_name" --eval --json)

echo "=== Generating manifests for $registry"

for attr in $(echo "$releases_json" | jq -r "keys[]") ; do
  repository=$registry/$image_prefix/$attr
  target_image=${repository}:${image_tag}
  echo "--- attr=$attr target=$target_image"
  podman manifest create "$target_image"
  podman manifest add "$target_image" "docker://$repository:${image_tag}-x86_64-linux"
  podman manifest add "$target_image" "docker://$repository:${image_tag}-aarch64-linux"
  podman manifest push --all "$target_image" "docker://$target_image"
done

echo OK