FleetCorp runs their application with 100 Kubernetes nodes. Each has 8 containers. How many APM hosts will they have?

In the context of Application Performance Monitoring (APM) as provided by Datadog, the key factor to understand is how hosts are counted. Each Kubernetes node typically represents a single host in monitoring terminology. Since FleetCorp runs 100 Kubernetes nodes, they will count as 100 hosts for APM purposes.

While there are 8 containers running on each node, APM typically focuses on the resource associated with the host, which in this case refers to the Kubernetes nodes rather than the individual containers. This means that even though there are many containers per node, APM counts those containers as being part of the host they reside on, rather than counting each container as a separate host.

This distinction is important because it highlights how APM metrics are collected according to the infrastructure's composition, primarily focused on the nodes rather than the individual containers. Thus, the total number of APM hosts for FleetCorp will be 100, corresponding to the 100 Kubernetes nodes they have.