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ARG RUNTIME_IMAGE=gcr.io/distroless/cc
ARG BUILDPLATFORM=linux/amd64
# Precompile key slow-to-build dependencies
FROM --platform=$BUILDPLATFORM golang:1.18-alpine as go-deps
WORKDIR /linkerd-build
COPY go.mod go.sum ./
COPY bin/install-deps bin/
RUN go mod download
ARG TARGETARCH
RUN ./bin/install-deps $TARGETARCH
FROM --platform=$BUILDPLATFORM curlimages/curl:7.76.1 as fetch
WORKDIR /build
COPY bin/fetch-proxy bin/fetch-proxy
COPY bin/scurl bin/scurl
COPY .proxy-version proxy-version
ARG TARGETARCH
RUN (proxy=$(bin/fetch-proxy $(cat proxy-version) $TARGETARCH) && \
mv "$proxy" linkerd2-proxy)
ARG LINKERD_AWAIT_VERSION=v0.2.6
RUN bin/scurl -o linkerd-await https://github.com/linkerd/linkerd-await/releases/download/release%2F${LINKERD_AWAIT_VERSION}/linkerd-await-${LINKERD_AWAIT_VERSION}-${TARGETARCH} && chmod +x linkerd-await
## compile proxy-identity agent
FROM go-deps as golang
WORKDIR /linkerd-build
COPY pkg/util/http.go pkg/util/http.go
COPY pkg/flags pkg/flags
COPY pkg/tls pkg/tls
COPY pkg/version pkg/version
ARG TARGETARCH
RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -mod=readonly ./pkg/...
COPY proxy-identity proxy-identity
RUN CGO_ENABLED=0 GOOS=linux GOARCH=$TARGETARCH go build -o /out/proxy-identity -mod=readonly -ldflags "-s -w" ./proxy-identity
FROM $RUNTIME_IMAGE as runtime
COPY --from=fetch /build/target/proxy/LICENSE /usr/lib/linkerd/LICENSE
COPY --from=fetch /build/proxy-version /usr/lib/linkerd/linkerd2-proxy-version.txt
COPY --from=fetch /build/linkerd2-proxy /usr/lib/linkerd/linkerd2-proxy
COPY --from=fetch /build/linkerd-await /usr/lib/linkerd/linkerd-await
COPY --from=golang /out/proxy-identity /usr/lib/linkerd/linkerd2-proxy-identity
COPY --from=debian:buster-20210208-slim /bin/sleep /bin/sleep
ARG LINKERD_VERSION
ENV LINKERD_CONTAINER_VERSION_OVERRIDE=${LINKERD_VERSION}
ENV LINKERD2_PROXY_LOG=warn,linkerd=info
ENV LINKERD2_PROXY_LOG_FORMAT=plain
ENTRYPOINT ["/usr/lib/linkerd/linkerd2-proxy-identity"]