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-rwxr-xr-xblimp/tools/bundle-engine.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/blimp/tools/bundle-engine.py b/blimp/tools/bundle-engine.py
index 4c3aa04..e94cf22 100755
--- a/blimp/tools/bundle-engine.py
+++ b/blimp/tools/bundle-engine.py
@@ -66,6 +66,10 @@ def main():
subprocess.check_output(
["tar",
"-zcf", args.output,
+ # Ensure tarball content group permissions are appropriately set for
+ # use as part of a "docker build". That is group readable with
+ # executable files also being group executable.
+ "--mode=g+rX",
"-C", dockerfile_dirname, dockerfile_basename,
"-C", startup_script_dirname, startup_script_basename,
"-C", args.build_dir] + deps,