refine docker image

Author: Tim Middleton

test/e2e/kind/Dockerfile

@@ -4,12 +4,18 @@
 # Licensed under the Universal Permissive License v 1.0 as shown at
 # http://oss.oracle.com/licenses/upl.
 
+FROM alpine AS builder
+
+COPY runner /runner
+RUN chmod 0555 /runner
+
 FROM scratch
 
-COPY --chown=1000:1000 runner /files/runner
+COPY --chown=1000:1000 --from=builder /runner /files/runner
 
 USER 1000:1000
 
 EXPOSE 8080
+
 ENTRYPOINT ["/files/runner"]
-CMD ["-h"]
+CMD ["-h"]