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vaultwarden-test/hooks/push
Jeremy Lin 96ff32fb2f
Remove arm32v6-specific tag
This section of code seems to be breaking the Docker release workflow as of a
few days ago, though it's unclear why. This tag only existed to work around
an issue with Docker pulling the wrong image for ARMv6 platforms; that issue
was resolved in Docker 20.10.0, which has been out for a few years now, so it
seems like a reasonable time to drop this tag.
2023-01-24 12:33:25 -08:00

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#!/bin/bash
source ./hooks/arches.sh
export DOCKER_CLI_EXPERIMENTAL=enabled
# Join a list of args with a single char.
# Ref: https://stackoverflow.com/a/17841619
join() { local IFS="$1"; shift; echo "$*"; }
set -ex
echo ">>> Starting local Docker registry when needed..."
# Docker Buildx's `docker-container` driver is needed for multi-platform
# builds, but it can't access existing images on the Docker host (like the
# cross-compiled ones we just built). Those images first need to be pushed to
# a registry -- Docker Hub could be used, but since it's not trivial to clean
# up those intermediate images on Docker Hub, it's easier to just run a local
# Docker registry, which gets cleaned up automatically once the build job ends.
#
# https://docs.docker.com/registry/deploying/
# https://hub.docker.com/_/registry
#
# Use host networking so the buildx container can access the registry via
# localhost.
#
# First check if there already is a registry container running, else skip it.
# This will only happen either locally or running it via Github Actions
#
if ! timeout 5 bash -c 'cat < /dev/null > /dev/tcp/localhost/5000'; then
# defaults to port 5000
docker run -d --name registry --network host registry:2
fi
# Docker Hub sets a `DOCKER_REPO` env var with the format `index.docker.io/user/repo`.
# Strip the registry portion to construct a local repo path for use in `Dockerfile.buildx`.
LOCAL_REGISTRY="localhost:5000"
REPO="${DOCKER_REPO#*/}"
LOCAL_REPO="${LOCAL_REGISTRY}/${REPO}"
echo ">>> Pushing images to local registry..."
for arch in ${arches[@]}; do
docker_image="${DOCKER_REPO}:${DOCKER_TAG}-${arch}"
local_image="${LOCAL_REPO}:${DOCKER_TAG}-${arch}"
docker tag "${docker_image}" "${local_image}"
docker push "${local_image}"
done
echo ">>> Setting up Docker Buildx..."
# Same as earlier, use host networking so the buildx container can access the
# registry via localhost.
#
# Ref: https://github.com/docker/buildx/issues/94#issuecomment-534367714
#
# Check if there already is a builder running, else skip this and use the existing.
# This will only happen either locally or running it via Github Actions
#
if ! docker buildx inspect builder > /dev/null 2>&1 ; then
docker buildx create --name builder --use --driver-opt network=host
fi
echo ">>> Running Docker Buildx..."
tags=("${DOCKER_REPO}:${DOCKER_TAG}")
# If the Docker tag starts with a version number, assume the latest release
# is being pushed. Add an extra tag (`latest` or `alpine`, as appropriate)
# to make it easier for users to track the latest release.
if [[ "${DOCKER_TAG}" =~ ^[0-9]+\.[0-9]+\.[0-9]+ ]]; then
if [[ "${DOCKER_TAG}" == *alpine ]]; then
tags+=(${DOCKER_REPO}:alpine)
else
tags+=(${DOCKER_REPO}:latest)
fi
fi
tag_args=()
for tag in "${tags[@]}"; do
tag_args+=(--tag "${tag}")
done
# Docker Buildx takes a list of target platforms (OS/arch/variant), so map
# the arch list to a platform list (assuming the OS is always `linux`).
declare -A arch_to_platform=(
[amd64]="linux/amd64"
[armv6]="linux/arm/v6"
[armv7]="linux/arm/v7"
[arm64]="linux/arm64"
)
platforms=()
for arch in ${arches[@]}; do
platforms+=("${arch_to_platform[$arch]}")
done
platforms="$(join "," "${platforms[@]}")"
# Run the build, pushing the resulting images and multi-arch manifest list to
# Docker Hub. The Dockerfile is read from stdin to avoid sending any build
# context, which isn't needed here since the actual cross-compiled images
# have already been built.
docker buildx build \
--network host \
--build-arg LOCAL_REPO="${LOCAL_REPO}" \
--build-arg DOCKER_TAG="${DOCKER_TAG}" \
--platform "${platforms}" \
"${tag_args[@]}" \
--push \
- < ./docker/Dockerfile.buildx