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100 lines
2.2 KiB
Bash
100 lines
2.2 KiB
Bash
#!/usr/bin/env bash
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set -eu -o pipefail
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: ${BUILDX_CMD=docker buildx}
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: ${BUILDKIT_IMAGE=moby/buildkit:buildx-stable-1}
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: ${BUILDKIT_CFG=}
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: ${DRIVER=docker-container}
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: ${DRIVER_OPT=}
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: ${MULTI_NODE=0}
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: ${PLATFORMS=linux/amd64,linux/arm64}
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function clean {
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rm -rf "$context"
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${BUILDX_CMD} rm "$builderName"
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}
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context=$(mktemp -d -t buildx-output.XXXXXXXXXX)
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dockerfile=${context}/Dockerfile
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trap clean EXIT
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builderName=buildx-test-$(openssl rand -hex 16)
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buildPlatformFlag=
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if [ "$DRIVER" = "docker" ]; then
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builderName=default
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else
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buildPlatformFlag=--platform="${PLATFORMS}"
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fi
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driverOpt=image=${BUILDKIT_IMAGE}
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if [ -n "$DRIVER_OPT" ]; then
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driverOpt=$driverOpt,$DRIVER_OPT
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fi
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# create builder except for docker driver
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if [ "$DRIVER" != "docker" ]; then
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if [ "${MULTI_NODE}" = "1" ]; then
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firstNode=1
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for platform in ${PLATFORMS//,/ }; do
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createFlags=""
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if [ -f "$BUILDKIT_CFG" ]; then
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createFlags="$createFlags --config=${BUILDKIT_CFG}"
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fi
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if [ "$firstNode" = "0" ]; then
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createFlags="$createFlags --append"
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fi
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(
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set -x
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${BUILDX_CMD} create ${createFlags} \
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--name="${builderName}" \
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--node="${builderName}-${platform/\//-}" \
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--driver="${DRIVER}" \
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--platform="${platform}"
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)
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firstNode=0
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done
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else
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createFlags=""
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if [ -f "$BUILDKIT_CFG" ]; then
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createFlags="$createFlags --config=${BUILDKIT_CFG}"
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fi
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(
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set -x
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${BUILDX_CMD} create ${createFlags} \
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--name="${builderName}" \
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--driver="${DRIVER}" \
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--platform="${PLATFORMS}"
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)
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fi
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fi
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# multi-platform not supported by docker driver
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buildPlatformFlag=
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if [ "$DRIVER" != "docker" ]; then
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buildPlatformFlag=--platform="${PLATFORMS}"
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fi
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set -x
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# inspect and bootstrap
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${BUILDX_CMD} inspect --bootstrap --builder="${builderName}"
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# create dockerfile
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cat > "${dockerfile}" <<EOL
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FROM busybox as build
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ARG TARGETPLATFORM
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ARG BUILDPLATFORM
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RUN echo "I am running on \$BUILDPLATFORM, building for \$TARGETPLATFORM" > /log
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FROM busybox
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COPY --from=build /log /log
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RUN cat /log
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RUN uname -a
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EOL
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# build
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${BUILDX_CMD} build ${buildPlatformFlag} \
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--output="type=cacheonly" \
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--builder="${builderName}" \
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"${context}"
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