Wasted space in image

[vflaux]

37MB is wasted here as the COPY layer is completely overlayed by the RUN chmod one:

nydus-snapshotter/misc/snapshotter/Dockerfile

Lines 25 to 26 in 1e7a12e

	COPY containerd-nydus-grpc /usr/local/bin/
	RUN chmod +x /usr/local/bin/containerd-nydus-grpc

Should use COPY --chmod instead from buildkit.

Dive output:

Analyzing image...
  efficiency: 74.4988 %
  wastedBytes: 73633235 bytes (74 MB)
  userWastedPercent: 53.6183 %
Inefficient Files:
Count  Wasted Space  File Path
    2         74 MB  /usr/local/bin/containerd-nydus-grpc
    2         30 kB  /lib/apk/db/installed
    2         22 kB  /lib/apk/db/scripts.tar
    2         152 B  /lib/apk/db/triggers
    2         131 B  /etc/apk/world

[changweige]

Thanks for reporting. Could please help raise a PR to fix it?