Interview with Weaveworks

Weaveworks, a microservices operationalization service, chose Prometheus for monitoring due to their team's prior experience with similar systems and its natural fit with their Kubernetes-based architecture. Initially facing challenges with persistent data storage and updates, they iterated through various Prometheus setups before ultimately building Weave Cortex, a distributed, cloud-native Prometheus-as-a-Service, to address these issues and provide a highly available monitoring solution. They are now focused on maturing Cortex and contributing improvements to the Prometheus ecosystem, including tools like Loki for distributed tracing and an intelligent PromQL expression browser.