Reduced container image size

[camandel]

Modified Dockerfile to reduce the image size:

$ docker image ls rew-sploit
REPOSITORY   TAG       IMAGE ID       CREATED         SIZE
rew-sploit   devel     e6e5b0244a0f   8 minutes ago   209MB
rew-sploit   latest    1c477a013cc2   9 days ago      1.1GB

[cecio]

Works like a charm, thanks!

Only one doubt, may be it's a problem of my env:

REPOSITORY                     TAG                  IMAGE ID       CREATED          SIZE
rew-sploit/rew-sploit          latest               372a1cfcb6a0   20 seconds ago   208MB
<none>                         <none>               71fd2c88111b   43 seconds ago   489MB
python                         3.9-slim             4b78d86983eb   10 days ago      122MB

After the build I have a dangling image (71fd2c88111b). Did you see the same?

[camandel]

After the build I have a dangling image (71fd2c88111b). Did you see the same?

Yes, in a multi-stage build all intermediate images are not automatically deleted bacause they are used as cache for next builds and you have to manually delete them (as for any other dangling image).

If you have a CI/CD system (so you can't delete all cached images) you can add a label into the builder stage (like LABEL stage=builder) and then "prune" them with something like docker image prune --filter label=stage=builder

[cecio]

Great! Thanks!