85 lines
3.5 KiB
Bash
Executable File
85 lines
3.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright The containerd Authors.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Copyright 2020 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -o errexit
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set -o nounset
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set -o pipefail
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export DOCKER_CLI_EXPERIMENTAL=enabled
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# Expected builder output
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#
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# Name: containerd-buildkit-multiarch
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# Driver: docker-container
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#
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# Nodes:
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# Name: containerd-buildkit-multiarch0
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# Endpoint: unix:///var/run/docker.sock
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# Status: running
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# Platforms: linux/amd64, linux/arm64, linux/riscv64, linux/ppc64le, linux/s390x, linux/386, linux/arm/v7, linux/arm/v6
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current_builder="$(docker buildx inspect)"
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# We can skip setup if the current builder already has multi-arch
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# AND if it isn't the "docker" driver, which doesn't work
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#
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# From https://docs.docker.com/buildx/working-with-buildx/#build-with-buildx:
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# "You can run Buildx in different configurations that are exposed through a
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# driver concept. Currently, Docker supports a “docker” driver that uses the
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# BuildKit library bundled into the docker daemon binary, and a
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# “docker-container” driver that automatically launches BuildKit inside a
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# Docker container.
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#
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# The user experience of using Buildx is very similar across drivers.
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# However, there are some features that are not currently supported by the
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# “docker” driver, because the BuildKit library which is bundled into docker
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# daemon uses a different storage component. In contrast, all images built with
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# the “docker” driver are automatically added to the “docker images” view by
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# default, whereas when using other drivers, the method for outputting an image
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# needs to be selected with --output."
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if ! grep -q "^Driver: docker$" <<<"${current_builder}" \
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&& grep -q "linux/amd64" <<<"${current_builder}" \
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&& grep -q "linux/arm" <<<"${current_builder}" \
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&& grep -q "linux/arm64" <<<"${current_builder}" \
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&& grep -q "linux/ppc64le" <<<"${current_builder}" \
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&& grep -q "linux/s390x" <<<"${current_builder}"; then
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exit 0
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fi
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# Ensure qemu is in binfmt_misc
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# NOTE: Please always pin this to a digest for predictability/auditability
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# Last updated: 08/21/2020
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if [ "$(uname)" = 'Linux' ]; then
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docker run --rm --privileged multiarch/qemu-user-static@sha256:c772ee1965aa0be9915ee1b018a0dd92ea361b4fa1bcab5bbc033517749b2af4 --reset -p yes
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fi
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# Ensure we use a builder that can leverage it (the default on linux will not)
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docker buildx rm containerd-buildkit-multiarch || true
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docker buildx create --use --name=containerd-buildkit-multiarch
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docker buildx inspect --bootstrap
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