Implementation of a Monitoring Strategy for Microservices Environments

When people talk about microservices, they focus on the pros of running the microservices in isolation: different languages, independent deployments, ownership by small teams. But running several services together as one product rarely paints a meaningful picture. One of the areas to focus on while preparing for a product for production is how to answer the simple question: "Is the product available to customers or not?" The question sounds simple, but the answer is hidden somewhere in those microservices.