Lessons Learned from Twenty Years of Site Reliability Engineering Or, Eleven things we have learned as Site Reliability Engineers at Google Authors Adrienne Walcer, Kavita Guliani, Mikel Ward, Sunny Hsiao, and Vrai Stacey Contributors Ali Biber, Guy Nadler, Luisa Fearnside, Thomas Holdschick, and Trevor Mattson-Hamilton Foreword A lot can happen in twenty years, especially when you're busy growing