By default, Ubuntu or Debian based "apt" or "apt-get" system installs recommended but not suggested packages .
By passing "--no-install-recommends" option, the user lets apt-get know not to consider recommended packages as a dependency to install.
This results in smaller downloads and installation of packages .
Refer to blog at [Ubuntu Blog](https://ubuntu.com/blog/we-reduced-our-docker-images-by-60-with-no-install-recommends) .
Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
While real overlayfs is available only in Ubuntu and Debian kernels,
fuse-overlayfs is universally available for kernel >= 4.18.
For dockerized deployment, `--device /dev/fuse` needs to be added to
`docker run` flags.
Kubernetes deployment needs a custom device plugin that enables
`/dev/fuse`, e.g. https://github.com/honkiko/k8s-hostdev-plugin
Instead of a device plugin, the device can be also enabled by setting
`securityContext.privileged` to `true`.
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Sam Whited
Akihiro Suda
Tõnis Tiigi
Pratik Raj