Use 'scratch' for runtime image

Signed-off-by: Anish Asthana <[email protected]>

ray-operator/Dockerfile

@@ -18,9 +18,7 @@ COPY controllers/ controllers/
 USER root
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 GO111MODULE=on go build -a -o manager main.go
 
-# Use distroless as minimal base image to package the manager binary
-# Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM gcr.io/distroless/static:nonroot
+FROM scratch
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER 65532:65532