4 ms·

So basically, you need to short circuit one of Docker's core features to get decent performance. I like it.

• wmf 12y ago
  Even ignoring performance, putting persistent data (like databases) on volumes is a best practice since the normal filesystem inside the container is ephemeral.
  • dsissitka 12y ago
    "...since the normal filesystem inside the container is ephemeral." Not by default: # docker run -i -t ubuntu bash root@48dbef418f4c:/# echo foo > /bar root@48dbef418f4c:/# exit # docker restart 48dbef418f4c 48dbef418f4c # docker attach 48dbef418f4c root@48dbef418f4c:/# cat /bar foo root@48dbef418f4c:/# Docker won't delete a container unless you tell it to.