woodpecker-docker-buildx/Dockerfile.multiarch

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ARG BUILDX_VERSION=0.9.1
ARG DOCKER_VERSION=20.10-dind
ARG GOLANG_VERSION=1.18
FROM --platform=$BUILDPLATFORM golang:${GOLANG_VERSION} as build
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COPY . /src
WORKDIR /src
ARG TARGETOS TARGETARCH
RUN --mount=type=cache,target=/root/.cache/go-build \
--mount=type=cache,target=/go/pkg \
make build
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FROM docker/buildx-bin:${BUILDX_VERSION} as buildx-bin
FROM docker:${DOCKER_VERSION}
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RUN apk --update --no-cache add coredns
COPY --from=build /src/Corefile /etc/coredns/Corefile
COPY --from=buildx-bin /buildx /usr/libexec/docker/cli-plugins/docker-buildx
COPY --from=build /src/plugin-docker-buildx /bin/plugin-docker-buildx
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ENV DOCKER_HOST=unix:///var/run/docker.sock
ENTRYPOINT ["/usr/local/bin/dockerd-entrypoint.sh", "plugin-docker-buildx"]