chef software package provides systems integration framework - clients, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install chef
chef is installed in your system.
Make ensure the chef package were installed using the commands given below,
$ sudo dpkg-query -l | grep chef *
You will get with chef package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Ruby |
| Package | chef |
| Version | 12.14.60-2 |
| Description | systems integration framework - clients |
| Sub Section | Ruby |