Request: EntryPoint permission-script

[Goffen]

Hi there! I love this docker-file. But I recently tried to use mounted ssh-keys with WSL - and exactly the correct permissions is required for the key to work. So I would be very glad if this trick from below could be included somehow

(I tried to do it myself, but didn't understand how you could run multiple entrypoints?)

https://nickjanetakis.com/blog/docker-tip-56-volume-mounting-ssh-keys-into-a-docker-container