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Dockerfile
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ARG BUILDPLATFORM="linux/amd64"
ARG BUILDERIMAGE="golang:1.20-bullseye"
# Use distroless as minimal base image to package the manager binary
# Refer to https://github.com/GoogleContainerTools/distroless for more details
ARG BASEIMAGE="gcr.io/distroless/static:nonroot"
FROM --platform=$BUILDPLATFORM $BUILDERIMAGE as builder
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH
ARG TARGETVARIANT=""
ARG LDFLAGS
ARG BUILDKIT_SBOM_SCAN_STAGE=true
ENV GO111MODULE=on \
CGO_ENABLED=0 \
GOOS=${TARGETOS} \
GOARCH=${TARGETARCH} \
GOARM=${TARGETVARIANT}
WORKDIR /go/src/github.com/open-policy-agent/gatekeeper
COPY . .
RUN go build -mod vendor -a -ldflags "${LDFLAGS:--X github.com/open-policy-agent/gatekeeper/pkg/version.Version=latest}" -o manager
FROM $BASEIMAGE
WORKDIR /
COPY --from=builder /go/src/github.com/open-policy-agent/gatekeeper/manager .
USER 65532:65532
ENTRYPOINT ["/manager"]