Add info about telemetry (#209)

_data/toc.yaml

@@ -1292,6 +1292,8 @@ manuals:
   - path: /engine/installation/
     title: Install Docker EE
     nosync: true
+  - path: /enterprise/telemetry/
+    title: Manage usage data collection
   - path: /enterprise/release-notes/
     title: Release Notes
   - path: /datacenter/install/linux/

enterprise/telemetry.md

@@ -0,0 +1,52 @@
+---
+name: Manage usage data collection
+description: Understand and manage usage data collected by Docker EE and sent to Docker.
+keywords: enterprise, telemetry, data collection
+---
+
+Docker EE 17.06 and higher include a telemetry plugin which is enabled by
+default on Ubuntu. This plugin sends Docker information about your running
+system so that we can improve Docker EE. For details about the telemetry plugin
+and the types of data it collects, see the
+[`telemetry` plugin documentation](hhttps://store.docker.com/community/images/docker/telemetry).
+
+If your Docker instance runs in an environment with no internet connectivity,
+the plugin does not collect or attempt to send any information to Docker.
+
+## Manage data collection
+
+If you do not wish to send any usage data to Docker, you can disable the plugin,
+either using the Docker CLI or using Universal Control Plane.
+
+### Use the Docker CLI
+
+To disable the telemetry plugin, use the `docker plugin disable` command:
+
+```bash
+$ docker plugin disable telemetry
+```
+
+This command needs to be run on each Docker host.
+
+To re-enable the telemetry plugin, you can use `docker plugin enable`.
+
+```bash
+$ docker plugin enable telemetry
+```
+
+### Use Universal Control Plane
+
+If you use Universal Control Plane with Docker EE, do not use the Docker CLI to
+disable the telemetry plugin. Instead, you can manage the information sent to
+Docker by going to **Admin Settings** and choosing **Usage**.
+
+![UCP admin settings Usage defaults](images/usage-defaults.png)
+
+To disable the telemetry plugin, disable all three options and click **Save**.
+Enabling either or both of the top two options will enable the telemetry plugin.
+You can find out more about an individual option by clicking the **?** icon next
+to it.
+
+> **Note**: If you enable gathering of API statistics, the payloads are not
+> collected, but only information about which API endpoints you use.
+