gzip log files

Author: chrischdi

hack/e2e.sh

@@ -97,6 +97,8 @@ on_exit() {
       tar -czf "${tarball}" -C . "${tarballDirectory}"
       rm -r "${tarballDirectory}"
     done
+    # gzip log files
+    find "${ARTIFACTS}" -type f -name "*.log" -exec gzip {} \;
     # Move all artifacts to the original artifacts location.
     mv "${ARTIFACTS}"/* "${ORIGINAL_ARTIFACTS}/"
   fi