# ProLUG Automation

## Unit 9 Worksheet

## Instructions

Fill out this sheet as you progress through the lab and discussions. Hold your worksheets until
the end to turn them in as a final submission packet.


## Discussion Questions:

### Unit 9 Discussion Post 1
Read sections “Container Usage” and “Diskless Booting” on
pages 8 and 9 of this doc:
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-223.ipd.pdf

1. What are the main security concerns given about using containers in HPC?
2. What is the PXE or IPXE protocol defined for diskless booting?

### Unit 9 Discussion Post 2
Read about chrooted environments here:
https://en.wikipedia.org/wiki/Chroot and the Ansible connector here:
https://docs.ansible.com/projects/ansible/latest/collections/community/general/chroot_connection.html

1. What are the uses of a chrooted environment? (there are 5 on Wikipedia)
2. How might using Ansible to build chrooted images help improve your build process?

## Definitions/Terminology

- Warewulf terminology
	- Image repository
	- System Overlays
	- Runtime Overlays
	- Wwctl language

## Notes During Lecture/Class

### Useful tools

## Lab and Assignment

Unit 9 Build Modern Linux - https://killercoda.com/het-tanis/course/Automation-Labs/Unit9_Build_Modern_Linux

## Digging Deeper

1. Read other parts of this doc for more HPC understanding:
https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-223.ipd.pdf
	1. What are the components on the drawing on page 3 of doc (pg. 11 in the webviewer)

## Reflection Questions
1. What questions do you still have about this week?
2. How are you going to use what you’ve learned in your current role?