Which approach is used to monitor applications running on Cloud Foundry?

Monitoring applications running on Cloud Foundry effectively often involves utilizing BOSH add-ons or buildpacks. This approach is specifically designed to integrate monitoring capabilities directly into the application lifecycle on Cloud Foundry platforms.

BOSH is a tool for release engineering, deployment, lifecycle management, and monitoring of large-scale distributed services. By using BOSH add-ons, you can install and manage particularly necessary components within the architecture that can keep track of application performance and health seamlessly. Buildpacks, which provide frameworks and dependencies for applications, can also be configured to include monitoring agents, such as Dynatrace's OneAgent, making it viable to gather crucial performance insights while the application runs.

The other options, while relevant to their respective environments, do not directly apply to Cloud Foundry's architecture. Helm charts are primarily utilized within Kubernetes environments, and Kubernetes DaemonSets also pertain to Kubernetes-based deployments rather than Cloud Foundry. A service mesh, in contrast, is used to manage microservices communication but does not inherently provide monitoring capabilities like the integration possible with BOSH add-ons or buildpacks within Cloud Foundry deployments.