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Add post-image script to create release-style tarballs locally
Implement a post-image script that automatically creates OCI tarballs matching the release artifact format after local builds. This makes it easier to test and distribute locally-built images without relying on CI/CD workflows. Co-Authored-By: Claude <noreply@anthropic.com> Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
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‎board/common/post-image.sh‎

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#!/bin/sh
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# Post-image script to create OCI tarball similar to release artifacts
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# This makes local builds easier to distribute and test
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# shellcheck disable=1090
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set -e
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get_br_var()
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{
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val="$(sed -n "s/^$1=//p" "$BR2_CONFIG")"
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val="${val#\"}"
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printf '%s\n' "${val%\"}"
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}
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OCI_DIR="${BINARIES_DIR}/rootfs-oci"
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if [ ! -d "${OCI_DIR}" ]; then
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echo "ERROR: ${OCI_DIR} not found!"
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exit 1
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fi
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# Determine container name and docker architecture from defconfig
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NAME="$(get_br_var BR2_TARGET_ROOTFS_OCI_TAG)"
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ARCH="$(get_br_var BR2_NORMALIZED_ARCH)"
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FILE="${NAME}-oci-${ARCH}.tar.gz"
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echo "Creating OCI tarball"
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echo " Container : ${NAME}"
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echo " Architecture : ${ARCH}"
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# Create tarball with OCI contents at root (no directory wrapper)
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cd "${OCI_DIR}"
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tar czf "${BINARIES_DIR}/${FILE}" .
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cd "${BINARIES_DIR}"
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echo "✓ Created : ${FILE}"
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echo
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echo "To load this OCI image into your container store:"
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echo
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echo "$ docker load < ${FILE}"
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echo " Getting image source signatures"
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echo " Copying blob 03d195b2e729 done | "
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echo " Copying config e98a88ec09 done | "
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echo " Writing manifest to image destination"
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echo " Loaded image: localhost/${NAME}:latest"
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echo

‎configs/httpd_amd64_defconfig‎

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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_CURIOS_PATH)/board/httpd/rootfs"
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/httpd/busybox_defconfig"
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_TINI=y

‎configs/httpd_arm64_defconfig‎

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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_CURIOS_PATH)/board/httpd/rootfs"
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/httpd/busybox_defconfig"
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_TINI=y

‎configs/neofetch_amd64_defconfig‎

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# BR2_TARGET_GENERIC_GETTY is not set
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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/neofetch/busybox_defconfig"
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BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set

‎configs/neofetch_arm64_defconfig‎

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# BR2_TARGET_GENERIC_GETTY is not set
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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/neofetch/busybox_defconfig"
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BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set

‎configs/nftables_amd64_defconfig‎

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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/rootfs $(BR2_EXTERNAL_CURIOS_PATH)/board/nftables/rootfs"
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/nftables/busybox_defconfig"
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_NFTABLES=y

‎configs/nftables_arm64_defconfig‎

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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/rootfs $(BR2_EXTERNAL_CURIOS_PATH)/board/nftables/rootfs"
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="${BR2_EXTERNAL_CURIOS_PATH}/board/nftables/busybox_defconfig"
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_NFTABLES=y

‎configs/ntpd_amd64_defconfig‎

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# BR2_TARGET_GENERIC_GETTY is not set
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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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# BR2_PACKAGE_BUSYBOX is not set
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_NTP=y

‎configs/ntpd_arm64_defconfig‎

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# BR2_TARGET_GENERIC_GETTY is not set
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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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# BR2_PACKAGE_BUSYBOX is not set
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# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
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BR2_PACKAGE_NTP=y

‎configs/system_amd64_defconfig‎

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# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/rootfs $(BR2_EXTERNAL_CURIOS_PATH)/board/system/rootfs $(BR2_EXTERNAL_CURIOS_PATH)/board/nftables/rootfs"
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BR2_ROOTFS_POST_BUILD_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-build.sh"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_CURIOS_PATH)/board/common/post-image.sh"
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BR2_PACKAGE_BUSYBOX_CONFIG="$(BR2_EXTERNAL_CURIOS_PATH)/board/system/busybox_defconfig"
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BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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BR2_PACKAGE_LIBCURL=y

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