SREperiaatteiden

SREperiaatteiden, a term originating from the Finnish language, translates to "Site Reliability Engineering principles". It refers to the core tenets and practices that guide the implementation and operation of Site Reliability Engineering (SRE) within an organization. These principles are fundamental to building and maintaining highly reliable and scalable systems.

At its heart, SREperiaatteiden emphasizes the application of software engineering to operations problems. This means using code and automation to manage infrastructure, deploy services, and respond to incidents, rather than relying solely on manual processes. A key principle is the concept of an "error budget". This is a pre-defined amount of acceptable downtime or performance degradation that a service can experience over a period. If the error budget is exceeded, the focus shifts from developing new features to improving reliability.

Another crucial aspect of SREperiaatteiden is the measurement and monitoring of system performance and availability. This involves defining Service Level Objectives (SLOs) and Service Level Indicators (SLIs) to quantify the desired reliability of a service. Automation is paramount, with SRE teams striving to automate repetitive tasks, such as provisioning, configuration management, and incident response, to reduce human error and increase efficiency. Finally, a culture of blameless postmortems is essential, where incidents are analyzed to understand the root causes and prevent recurrence, without assigning blame to individuals. These SREperiaatteiden collectively aim to achieve a balance between releasing new features and maintaining a stable, reliable operational environment.