add operation docs for device profiles

Signed-off-by: Reuben Miller <reuben.d.miller@gmail.com>

docs/src/operate/c8y/device-profiles.md

@@ -0,0 +1,61 @@
+---
+title: Device Profiles
+tags: [Operate, Device Profile, Firmware Management, Software Management, Configuration Management]
+description: Managing device profiles on devices
+---
+
+## Management
+
+%%te%% enables you to manage a the firmware, software and configuration for a device in a single operation which makes it suitable for managing a large fleet of devices. The following sections detail how to create and assign a device profile to a device. Using Cumulocity IoT, you can either assign a device profile using a single operation (described on this page), or by using a [bulk operation](https://cumulocity.com/docs/device-management-application/monitoring-and-controlling-devices/#to-add-a-bulk-operation) to assign it to a fleet of devices.
+
+:::info
+For more detailed information on the Cumulocity IoT **Device Management** features, please check out the [official documentation](https://cumulocity.com/docs/device-management-application/managing-device-data/#managing-device-profiles).
+:::
+
+### To add a new device profile {#add-to-repo}
+
+A device profile can be created by using the following steps. Afterwards, the device profile can be assigned to a specific device by following the [instructions](#install) in the next section.
+
+1. Navigate to the *Management* → *Device profiles* page
+
+    ![Create new device profile](images/device-profile-repo-1-list.png)
+
+    The page will display the existing device profiles (if any) that will be available for selection to the user whilst managing a device.
+
+2. Select *Add device profile* and fill in the details
+
+    <p align="center">
+        <img width="100%" src={require('./images/device-profile-repo-2-add-device-profile-empty.png').default} alt="Add software" />
+    </p>
+
+    :::tip
+    If you leave the *Device type* field blank, then the device profile can be applied to every kind of device.
+    :::
+
+3. Configure the device profile by adding any combination of *Firmware*, *Software* and *Configuration*
+
+    <p align="center">
+        <img width="100%" src={require('./images/device-profile-repo-4-device-profile-details.png').default} alt="Add software" />
+    </p>
+
+    :::note
+    Currently device profiles don't support/show the software type field in the UI. If you are using more than 1 software type on a device, then you will need to encode the software type into the software version, e.g. `1.2.3::apt`.
+    :::
+
+### To install a device profile on a device {#install}
+
+The following procedure describes the steps involved to assign a device profile to a device.
+
+:::tip
+Only previously created device profile can be selected. If you don't see any device profiles in the dropdown menu, then make sure you add a device profile using [these instructions](#add-to-repo).
+:::
+
+1. Select the device profile you want to assign to the device
+
+    ![Select device profile](images/device-profile-install-1-select.png)
+
+2. Review the device profile changes
+
+3. Select *Assign device profile* and wait for the operation to complete
+
+    ![Assign device profile](images/device-profile-install-2-assign.png)