Issue to send the compressed difference between the two images

[ClouDevops101]

I try to build a layer on the top of an existing images, and then send the delta between local and remote :

docker file : FROM nginx:latest RUN apt-get update && apt-get install -y apache2 && apt-get clean && rm -rf /var/lib/apt/lists/*
then i build the images
sudo docker build -t="nginx:1.34" .

then i try to transfer the diff between local and remote (the basic nginx images already exit in remote ) :

/usr/local/bin/syncregistry [email protected] nginx:1.34 -p

Getting source image ancestors DONE Searching all dest images DONE Found common parent: sha256:e548f1a579cf5 111-----/tmp/nginx_1.34_151989222218_sync_temp.tar.gz------sha256:e548f1a579cf529320a3c1d8789399e5fea0bfaa04cbb70d03890afafb748a2f Dumping local parent Traceback (most recent call last): File "/usr/local/bin/syncregistry", line 239, in <module> main() File "/usr/local/bin/syncregistry", line 86, in main _, output = execute("docker save -o %s %s"%(file_name, common_parent)) File "/usr/local/bin/syncregistry", line 202, in execute p = subprocess.Popen(parts, stdout=subprocess.PIPE) File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__ errread, errwrite) File "/usr/lib64/python2.7/subprocess.py", line 1327, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory

I had to do some few changes to make the script more 2.7 friendly 👍
https://github.com/LinuxArchitects/docker-sync/blob/master/docker-sync