It's still wrong, and I don't know how I could explain it more completely:

  -ENTRYPOINT service ssh restart && bash
  +ENTRYPOINT ["service", "ssh", "restart", "&&", "bash"]

You should read and understand the documentation for the containerfile format before continuing. This isn't some quirk because i'm using &&, you are breaking almost every dockerfile that doesn't use the array syntax for ENTRYPOINT.