Generate actionable insights about your cloud native systems. This book teaches you how to set up an observability system that learns from a cloud application’s signals, logging, and monitoring using free and open source tools. A well-designed observability system provides insight into bugs and performance issues in cloud native applications. Often, observability is the difference between an error message and an explanation! You know exactly which service is affected, who’s responsible for its repair, and even how it can be optimized in the future. Best of all, observability allows you to easily automate your error handling with machine users applying fixes without any human help. In cloud native environments, such as public cloud offerings like AWS or on-premises infrastructure, for example a Kubernetes cluster, you typically deal with many moving parts. This ranges from the infrastructure layer including compute (such as VMs or containers) and databases to the application code that you own. Depending on your role and the environment you may be responsible for any number of the pieces in the puzzle. Let’s have a look at a concrete example: consider a serverless Kubernetes environment in a cloud provider. For developers and SREs who have worked with cloud native applications. This book can be used with any public cloud.