This version of the metrics agent supports mounting the CLOUDABILITY_API_KEY from a volume as this is best Kubernetes practice for storing secret credentials on a pod. This is supported through provisioning in the UI and through helm installs from this version forward. The new chart/template will contain a Kubernetes secret and apply the correct volumes and volumeMounts configurations to the agent.
The metrics-agent still supports setting the CLOUDABILITY_API_KEY as an environment variable but will log a warning suggesting customer's should update to using a volume mount. Customers can configure the location where the api key is stored on the filesystem using CLOUDABILITY_API_KEY_FILEPATH.