Observability in Continuous Deployment (CD) refers to the ability to monitor and understand the behaviour of a software system in production. It involves collecting and analysing data from various sources, such as logs, metrics, and traces, to gain insight into the performance, reliability, and user experience of a system. The goal of observability is to quickly identify and troubleshoot issues, detect and prevent potential problems, and ensure that the system is functioning as expected. By providing visibility into the system’s behaviour, observability helps teams improve the quality and reliability of their deployments.