Lots of resources / advice / best pratices to setup / deliver / maintain a production environment.
"If a human operator needs to touch your system during normal operations, you have a bug. The definition of normal changes as your systems grow."
Carla Geisser, Google SRE
Toil is the kind of work tied to running a production service that tends to be manual, repetitive, automatable, tactical, devoid of enduring value, and that scales linearly as a service grows.
"The price of reliability is the pursuit of the utmost simplicity."
C.A.R. Hoare, Turing Award lecture
In the words of Google engineer Robert Muth, "Unlike a detective story, the lack of excitement, suspense, and puzzles is actually a desirable property of source code."