Summary
This chapter covered the basics of SRE. The original workbook contains well over 500 pages, so it's almost impossible to summarize the methodology in just a few pages. Yet, after completing this chapter you will have a good understanding of the founding principles of SRE, starting with the definition of SLOs to set requirements on how good a system should be. Subsequently, we measure the SLOs with indicators that tell us how good the system really is. We learned that by working with risk management, error budgets, and blameless post-mortems, SRE engineers can help DevOps teams to improve systems and make them more reliable.
The conclusion of the chapter was that SRE is not very easy to implement in an enterprise. We discussed the first steps of the implementation and learned that if done right, SRE will lead to benefits. Businesses will gain from SRE because a lot of manual work can be reduced, creating room to improve products or develop new ones.
This concludes...