feat: deploy multi-arch images

.github/workflows/multiarch.yml

@@ -0,0 +1,28 @@
+name: Deploy multi-arch images
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "30 5 * * *"  # every day, at 5:30
+  push:
+    branches:
+      - multiarch
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    name: Deploy multi-arch images
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install ORAS
+        run: sudo snap install oras --classic
+      - name: Deploy
+        if: github.repository == 'pypa/manylinux'
+        run: ./deploy_multiarch.sh
+        env:
+          QUAY_USERNAME: ${{ secrets.QUAY_USERNAME }}
+          QUAY_PASSWORD: ${{ secrets.QUAY_PASSWORD }}

deploy_multiarch.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+IMAGES=(manylinux2014 manylinux_2_28 manylinux_2_31 manylinux_2_34 musllinux_1_2)
+
+podman login -u "${QUAY_USERNAME}" -p "${QUAY_PASSWORD}" quay.io
+
+for IMAGE in "${IMAGES[@]}"; do
+	echo "::group::${IMAGE}"
+	LAST_TAG="$(oras repo tags --last "2025.02.23-1" "quay.io/pypa/${IMAGE}" | tail -2 | head -1)"
+	if [ "${LAST_TAG}" == "" ]; then
+		 LAST_TAG=2025.02.23-1
+	fi
+	echo "${IMAGE}: last tag is ${LAST_TAG}"
+	case ${IMAGE} in
+		manylinux_2_31) REF_IMAGE=manylinux_2_31_armv7l;;
+		*) REF_IMAGE=${IMAGE}_x86_64;;
+	esac
+	TAGS_TO_PUSH=()
+	while IFS='' read -r LINE; do
+		TAGS_TO_PUSH+=("$LINE");
+	done < <(oras repo tags --last "${LAST_TAG}" "quay.io/pypa/${REF_IMAGE}" | grep -v "^20[0-9][0-9]-" | grep -v "latest")
+	if [ ${#TAGS_TO_PUSH[@]} -eq 0 ]; then
+		echo "${IMAGE}: up-to-date"
+		echo "::endgroup::"
+		continue
+	fi
+
+	echo "${IMAGE}: adding tags ${TAGS_TO_PUSH[*]}"
+	case ${IMAGE} in
+		manylinux_2_31) ARCHS=("armv7l");;
+		manylinux2014) ARCHS=("x86_64" "i686" "aarch64" "ppc64le" "s390x");;
+		musllinux_1_2) ARCHS=("x86_64" "i686" "aarch64" "armv7l" "ppc64le" "s390x");;
+		*) ARCHS=("x86_64" "aarch64" "ppc64le" "s390x");;
+	esac
+
+	LATEST_MANIFEST=
+	for TAG_TO_PUSH in "${TAGS_TO_PUSH[@]}"; do
+		echo "::group::${TAG_TO_PUSH}"
+		SRC_IMAGES=()
+		for ARCH in "${ARCHS[@]}"; do
+				SRC_IMAGES+=("docker://quay.io/pypa/${IMAGE}_${ARCH}:${TAG_TO_PUSH}")
+		done
+		MANIFEST="${IMAGE}:${TAG_TO_PUSH}"
+		if ! podman manifest create "${MANIFEST}" "${SRC_IMAGES[@]}"; then
+			echo "::error ::failed to create '${MANIFEST}' manifest using ${SRC_IMAGES[*]}"
+		else
+			if ! podman manifest push --all "${MANIFEST}" "docker://quay.io/pypa/${IMAGE}:${TAG_TO_PUSH}"; then
+				echo "::error ::failed to push 'quay.io/pypa/${IMAGE}:${TAG_TO_PUSH}' using '${MANIFEST}'"
+			else
+				LATEST_MANIFEST="${MANIFEST}"
+			fi
+		fi
+		echo "::endgroup::"
+	done
+	if [ "${LATEST_MANIFEST}" == "" ]; then
+		echo "::warning ::${IMAGE}: skipping latest due to previous errors"
+	else
+		if ! podman manifest push --all "${LATEST_MANIFEST}" "docker://quay.io/pypa/${IMAGE}:latest"; then
+			echo "::error ::failed to push 'quay.io/pypa/${IMAGE}:latest' using '${LATEST_MANIFEST}'"
+		fi
+	fi
+	echo "::endgroup::"
+done