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#!/bin/bash
# SPDX-License-Identifier: GPL-3.0-or-later
# Author : Pawel Krupa (paulfantom)
# Cross-arch docker build helper script
# Needs docker in version >18.02 due to usage of manifests
set -e
if [ ! -f .gitignore ]; then
echo "Run as ./packaging/docker/$(basename "$0") from top level directory of git repository"
exit 1
fi
if [ "$1" == "" ]; then
VERSION=$(git tag --points-at)
else
VERSION="$1"
fi
if [ "${VERSION}" == "" ]; then
VERSION="latest"
fi
declare -A ARCH_MAP
ARCH_MAP=( ["i386"]="386" ["amd64"]="amd64" ["armhf"]="arm" ["aarch64"]="arm64")
if [ -z ${DEVEL+x} ]; then
declare -a ARCHITECTURES=(i386 armhf aarch64 amd64)
else
declare -a ARCHITECTURES=(amd64)
unset DOCKER_PASSWORD
unset DOCKER_USERNAME
fi
REPOSITORY="${REPOSITORY:-netdata}"
echo "Building ${VERSION} of ${REPOSITORY} container"
docker run --rm --privileged multiarch/qemu-user-static:register --reset
# Build images using multi-arch Dockerfile.
for ARCH in "${ARCHITECTURES[@]}"; do
eval docker build \
--build-arg ARCH="${ARCH}-v3.8" \
--build-arg OUTPUT=/dev/null \
--tag "${REPOSITORY}:${VERSION}-${ARCH}" \
--file packaging/docker/Dockerfile ./
done
# There is no reason to continue if we cannot log in to docker hub
if [ -z ${DOCKER_USERNAME+x} ] || [ -z ${DOCKER_PASSWORD+x} ]; then
echo "No docker hub username or password specified. Exiting without pushing images to registry"
exit 0
fi
# Create temporary docker CLI config with experimental features enabled (manifests v2 need it)
mkdir -p /tmp/docker
echo '{"experimental":"enabled"}' > /tmp/docker/config.json
# Login to docker hub to allow futher operations
echo "$DOCKER_PASSWORD" | docker --config /tmp/docker login -u "$DOCKER_USERNAME" --password-stdin
# Push images to registry
for ARCH in amd64 i386 armhf aarch64; do
docker --config /tmp/docker push "${REPOSITORY}:${VERSION}-${ARCH}" &
done
wait
# Recreate docker manifest
docker --config /tmp/docker manifest create --amend \
"${REPOSITORY}:${VERSION}" \
"${REPOSITORY}:${VERSION}-i386" \
"${REPOSITORY}:${VERSION}-armhf" \
"${REPOSITORY}:${VERSION}-aarch64" \
"${REPOSITORY}:${VERSION}-amd64"
# Annotate manifest with CPU architecture information
for ARCH in i386 armhf aarch64 amd64; do
docker --config /tmp/docker manifest annotate "${REPOSITORY}:${VERSION}" "${REPOSITORY}:${VERSION}-${ARCH}" --os linux --arch "${ARCH_MAP[$ARCH]}"
done
# Push manifest to docker hub
docker --config /tmp/docker manifest push -p "${REPOSITORY}:${VERSION}"
# Show current manifest (debugging purpose only)
docker --config /tmp/docker manifest inspect "${REPOSITORY}:${VERSION}"
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