Merge pull request #531 from benluddy/downstream-image-size

Bug 1883560: Avoid duplicate registry binaries across downstream image layers.

Dockerfile

@@ -13,10 +13,10 @@ RUN CGO_ENABLED=0 go build -mod=vendor -tags netgo -ldflags "-w" ./vendor/github
 
 FROM registry.svc.ci.openshift.org/ocp/4.7:base
 
-COPY --from=builder /src/bin/* /tmp/bin/
+COPY --from=builder /src/bin/* /bin/registry/
 COPY --from=builder /src/grpc-health-probe /bin/grpc_health_probe
 
-RUN cp -avr /tmp/bin/. /bin/ && rm -rf /tmp/bin
+RUN ln -s /bin/registry/* /bin
 
 RUN mkdir /registry
 RUN chgrp -R 0 /registry && \