Administration

Overview

The following sections will walk you through all functionalities of the Administration application in detail. For your convenience find an overview on the content of this document below:

Home screen

The Home screen of the Administration application provides the following content:

• A welcome message
• Quick links to the main parts of the Administration application
• Your capacity usage for the current and for the last month
• The optional applications you are subscribed to

The capacity sections show:

• API requests - the total number of API requests, counting whenever some function in Cumulocity IoT is invoked, regardless of whether the function is invoked from a device (for example sending a measurement) or from an application (for example viewing the list of devices).
• Device API requests - counting only when the API is called from a device (for example sending a measurement).
• Storage - the total amount of data stored in your account. This amount can be changed by retention rules and by the amount and size of stored files.
• Storage quota - if the storage limit per device is set, the user is restricted to a maximum data usage.
• Root devices - the number of root devices connected to your account, excluding child devices.
• Devices - the total number of devices connected to your account. This is the sum of the devices listed in the All devices page of the Device Management application and their direct and indirect child devices.
• Users - the sum of all users configured in this account, active and inactive.

Managing users

The user management feature allows you to manage the users within your tenant. With this functionality you may:

• Create users.
• Assign usernames and set passwords.
• Store user details.
• Specify login options.
• Enable additional login security by using Two-Factor Authentication (TFA).

If your tenant is configured for using single sign-on (SSO) in Software AG Cloud, new users should be created under My Cloud, accessible through the application switcher in the upper right corner, so that they are able to use the single sign-on feature.

For users created via an external authorization server, updating the following settings in Cumulocity IoT will have no effect (will be reset on the next user re-login):

• user info (login alias, email, first name, last name, telephone)
• global roles - configurable via SSO access mapping
• application access - configurable via SSO access mapping

Moreover, password reset in Cumulocity IoT is disabled for users created through an external authentication server.

Viewing users

To view all users in your tenant, click Users in the Accounts menu in the navigator.

A user list will be displayed, providing the following information for each user:

• The username that is used to access the tenant.
• The name and email of the user (if set).
• The global roles assigned to the user.
• The strength of the password set for the user

To filter the list by username, you can use the filter field at the left of the top menu bar. With the dropdown list you can filter by global roles. For details on filtering, see Getting started > UI functionalities and features > Filtering.

In order to apply the selected filters click Apply.

Initially, the User page only shows the top-level users. To see all users in your account at once, click Expand all at the right of the top bar. This will expand all top-level users, showing their sub-users. Click Collapse all to just show the top-level users again. For details on user hierarchies, refer to Managing user hierarchies.

To add a user

1. Click Add user at the right of the top menu bar.
   

   Info

   If single sign-on is enabled for your tenant, a message will show up which reminds you that you are about to create a local user which will not be able to login via single sign-on. Create new users in My Cloud instead, accessible through the application switcher in the upper right corner, to enable them using the single sign-on feature.

   2. At the left of the New user window, provide the following information to identify the user:

      Field	Description
      Username	Serves as a unique user ID to identify the user at the system. Note that the username cannot be changed once the user has been created. This field is mandatory.
      Login alias	In addition to the username, an optional alias can be provided to be used to log on. In contrast to the username, this alias may be changed if required. The login alias cannot be the same as the username. Note that the login alias is not supported for devices.
      Status	Enable/disable the user account here. If the user account is disabled the user cannot login.
      Email	A valid email address. This field is mandatory.
      First name	First name of the user.
      Last name	Last name of the user.
      Telephone	A valid phone number. The phone number is required if the user is configured to use two-factor authentication.
      Owner	Another user that manages ("owns") the new user. Select a user from the dropdown list and click Done to confirm. Refer to Managing user hierarchies for details on user hierarchies.
      Delegated by	Can be activated to delegate user hierarchies and permissions to the user. Refer to Managing user hierarchies for details on delegation.

      Related topics

      For additional information see User options and settings.

2. Select the login options for the user.

   • Two-factor authentication (SMS) - if selected, the user will receive a verification code via SMS which is required to complete the authentication. The SMS will be sent to the phone number configured above. For details refer to Two-factor authentication.
   • User must reset password on next login - if selected, you must provide a password which the user must reset on the next login. Enter a password and confirm it. While entering the password, the strength of the password will be checked. See To change your password for further information on password reset and strength.
   • Send password reset link as email - if selected, the user will receive an email message with a link to set a password. The email will be sent to the email address configured above. This option is only available during user creation.

3. On the right of the page, select the global roles for the user. Details on global roles are described in Managing permissions.

4. Click Save to save your settings.

The new user will be added to the user list.

To edit a user

1. Click the menu icon at the right of the respective row and then click Edit. All fields except Username and Send password reset link as email can be changed. For details on the fields, see To add a user.
2. Click Change password to change the password.
3. Click Save to apply your settings.

To copy inventory roles

1. Click the menu icon at the right of the respective row and then click Copy inventory roles from another user.
2. In the resulting dialog box, select if you want to merge the roles to be copied with the existing user roles (the default) or if you want to replace the existing user roles.
3. Select the user from which you want to copy roles from the dropdown list.
4. Click Copy.

The inventory roles will be copied from the selected user.

To delegate/undelegate user hierarchies

Click the menu icon at the right of the respective row and then click Delegate to delegate your user hierarchies and permissions to a user.

Click Undelegate to remove a delegation.

Refer to Managing user hierarchies for details on delegation.

To disable/enable a user

Click the menu icon at the right of the respective row and then click Disable to disable an active user, or click Enable to enable a user that has been disabled.

To delete a user

Click the menu icon at the right of the respective row and then click Delete.

To revoke user tokens

In the event of a security incident involving the session tokens of your tenant’s users, you can invalidate any tokens currently in use.

To revoke all session tokens click Revoke tokens at the right of the top menu bar. Revoking all tokens logs out all users logged in via “OAI-Secure” or “Single sign-on redirect”. Note that JWT tokens retrieved by your devices will also be revoked.

Managing permissions

Permissions define what a user is allowed to do in Cumulocity IoT applications. To manage permissions more easily, they are grouped into so-called “roles”. Every user can be associated with a number of roles, adding up permissions of the user.

The following types of roles can be associated with users:

• Global roles - contain permissions that apply to all data within a tenant.
• Inventory roles - contain permissions that apply to groups of devices.

Moreover, application access can be granted to enable a user to use an application.

Global roles

Click Roles in the Accounts menu to display a list of configured roles.

In the Global roles tab you can find the roles which grant permissions on a system level. There are several global roles pre-defined, but you can define your own according to your needs.

The roles “admins” and “devices” have a special status:

Furthermore, the following pre-configured roles are initially provided.

You may also see the following legacy roles:

To add a global role

Click Add global role in the Global roles tab. In the New global role page you will see a list of permission types at the left and a list of applications to be accessed at the right. The following screenshot shows the settings for the “admins” role.

Permission levels

For each type, you can select the following permission levels:

• READ - read the specified data.
• CREATE - create new data like users and inventory data and edit users within your hierarchy.
• UPDATE - change and delete the specified data (not including READ).
• ADMIN - create, update or delete the specified data.

Select the checkbox at the top of a column to set the respective level to all permission types.

Permission categories

The following permission categories are available by default:

There may be additional permissions visible depending on the features in your subscription plan. These are documented along with the respective feature.

Assigning global roles

You can assign global roles to users either directly in the user list, or by opening the details page for a particular user and adding them there.

To assign global roles from the user list

1. Click the Global roles column of a particular user to open a list of global roles.
2. Select or clear the respective checkboxes.
3. Click Apply to save your settings.

To assign global roles from the user page

1. Click on the row of the respective user in the user list.
2. In the user page, select or clear the checkboxes for the relevant global roles at the right.
3. Click Save to save your settings.

Inventory roles

Inventory roles contain permissions that you can assign to groups of devices. For example, an inventory role can contain the permission to restart a device. You can assign this inventory role to a group of devices “region north” and to a user “smith”. The result is that the user “smith” can restart all devices that are in the group “region north” or any of its subgroups.

To view the currently configured inventory roles, click Roles in the Accounts menu and switch to the Inventory roles tab.

In the Inventory roles tab you can manage user permissions for particular groups and/or its children. There are several default inventory roles defined, but you can define your own according to your needs.

The following default inventory roles are initially available in new tenants:

To add an inventory role

Click Add inventory role in the Inventory roles tab. In the “New inventory role” page, provide a name and a description, and assign the permissions for the new inventory role.

Permissions are grouped into the following categories:

Add a permission to the role by clicking the plus icon next to the desired category.

In the Type field, specify a type to further restrict the type of data that this permission applies to. Access will be only granted to objects that contain the specified Type.

For example, assume that your device sends measurements related to device management, such as “c8y_SignalStrength”, and actual production measurements. You want a user to only see the device management measurements. In this case, enter “c8y_SignalStrength” as type. This will allow the user to only see measurements that contain the type “c8y_SignalStrength”. Note that the user will be able to see the entire measurement object including other types that may be part of the same measurement object.

By default, the Type field contains an asterisk “*” selecting all types.

In the Permission field, select a permission level from the dropdown list:

• READ - to view objects
• CHANGE - to modify objects (does not include READ permission)
• ALL - to read AND modify objects

As another example, assume that you are using tracking devices. You want to allow your user to see all devices, but not to change anything. In addition, the user should be able to follow tracks of devices on a map. Tracks are recorded using an event with fragment type “c8y_Position” (see Sensor library). To do so, assign READ permission on inventory as well as on events with type “c8y_Position” as shown in the image below.

Assigning inventory roles to users

Inventory roles are assigned to a user and a group of devices.

To assign inventory roles, click Users in the Accounts menu, select a user in the user list and switch to its Inventory roles tab.

In the Inventory roles tab you will see a tree of device groups. To assign an inventory role, open the dropdown at the right of the group row. Select the relevant roles and click Apply. For a detailed description of a role click the info icon next to it or refer to Inventory roles.

Inventory roles are inherited from groups to all their direct and indirect subgroups, and to the devices in these groups. If you select, for example, a role with read permissions on alarms for a group of devices, the user will be able to see alarms of all devices in this group and all its subgroups.

If a user has inventory access to a group of devices, the user will also have that access to all dashboards for that group of devices in the Cockpit application.

You can also copy inventory roles from another user. To copy roles, click Copy inventory roles from another user. In the upcoming window, select a user from the list and click Copy. At the top you can select if you want to merge the roles with the existing user roles (the default) or if you want to replace the existing user roles. Copying roles makes it easier to manage the permissions of many users as you can create a reference user and then copy the permissions from there.

Troubleshooting permissions

If you try to perform actions without sufficient permissions, an error message will occur.

To help troubleshooting permissions, click the User button (showing the current user name) at the right of the top bar. From the context menu, select Access denied requests. In the resulting window details on the denied accesses are provided. An administrator user or the product support can help in fixing the permissions.

Improving the performance

The Cumulocity IoT platform provides optimized UI performance for users with inventory roles access. In particular, requests for tenants with large inventory hierarchies are faster.

The performance of the following UI pages is improved:

• In the device details view, the tabs Info, Measurements, Alarms, Events and Control.
• Pages with aggregated alarm views from multiple devices, if the number of alarms in the system is low, for example, Cockpit > Home dashboard, Cockpit > Alarms and Device Management > Home.
• Pages with aggregated events from multiple devices, if the number of events is low, for example, Device Management > Monitoring and controlling devices > To view events.
• Pages with aggregated operations from multiple devices, if the number of operations is low, for example, Device Management > Overviews > Device control.

As an administrator, you can disable the performance feature by doing the following:

• On platform level via the configuration file (only available for platform administrators, see the Cumulocity IoT - Operations guide for details).
• On tenant level via a tenant option. The tenant option has 2 possible values: LEGACY/OPTIMIZED, where OPTIMIZED is the global default.

The option looks like the following in the REST API (see also the Cumulocity IoT OpenAPI Specification):

{"category": "configuration", "key": "acl.algorithm-version", "value": "LEGACY"}

The setting on tenant level has priority over the setting on platform level.

By default, this option is enabled.

Granting application access

The Application Access tab shows a list of all available applications in your tenant in alphabetical order.

To assign applications to the user, simply select the respective applications and click Save.

For more information on application management, see Administration > Managing applications.

Viewing audit logs

Audit logs show the operations that users have carried out.

To view the audit log list, click Audit logs in the Accounts menu. For each log entry, the following information is provided:

Only the last 100 logs are visible. Scroll down the page to Load more to view more log entries.

Filtering logs

In order to easily search through logs, you can filter logs for:

• The type (alarm, operation, smart rule, and so on).
• A date range providing a “From” and/or a “To” date.
• The user.

To apply a filter, click the Apply button next to the respective filter field. To discard filters, click the X icon next to the Apply button (only visible if filters are set).

Audit log types

Managing applications

The Cumulocity IoT platform distinguishes between applications and microservices, see also Developing applications in the Concepts guide.

• Applications - all web applications either subscribed to the tenant or owned by the tenant.

• Microservices - server-side applications used to develop further functionality on top of Cumulocity IoT.

Both can be accessed via the Ecosystem menu in the navigator.

Additionally, in Enterprise tenants, it is possible to configure Default subscriptions, that means you can specify a list of applications that are subscribed by default to every new tenant on creation and/or to all existing tenants on platform upgrade. For details, see Enterprise tenant > Default subscriptions.

Applications

Click Applications in the Ecosystem menu in the navigator to display a list or grid of all applications in your account.

In the All applications tab, you can see all applications available in your tenant. There are two kinds of applications:

• Subscribed applications - applications subscribed to the tenant, either provided by the platform (as default applications) or a service provider.
• Custom applications - applications owned by the tenant. You can add custom applications in various ways as own applications.

Your applications are available through the application switcher in the top bar.

Subscribed applications

Cumulocity IoT provides a variety of applications for different purposes. Depending on your installation and/or optional services your tenant will show a selection of the potentially available applications.

Below all applications are listed which are by default available in the Standard tenant or Enterprise tenant. In addition, numerous optional applications might be subscribed to your tenant.

Applications subscribed by default

Custom applications

Custom applications may be:

• Web-based UI applications, either deployed as standalone applications or as plugins deployed into a specific application (for example, a widget to the Cockpit dashboard).
• Links to an application running elsewhere.
• Duplicates of subscribed applications (in order to be able to customize them).

In the All applications tab, custom applications are labeled as “Custom”.

To add a custom application

Click Add application at the top right of the All applications tab.

In the resulting dialog box, select one of the following methods:

• Upload web application - drop a ZIP file or browse for it in your file system.
• External application - link to an application running elsewhere.
• Install from available packages - select a package blueprint.
• Duplicate existing application - create a copy of an existing application.

To upload a web application

1. Click Add application at the top right of the All applications tab.
2. Select Upload web application.
3. In the resulting dialog box, drop a ZIP file or browse for it in your file system.

The application is created once the ZIP file has been successfully uploaded.

To link to an external application

1. Click Add application at the top right of the All applications tab.
2. Select External application.
3. In the resulting dialog box, enter the name of the application. The name will be shown as title of the application.
4. Enter an application key, used to identify this application.
5. Enter the external URL where the application can be reached.
6. Click Save to create the application.

For details on the fields, see also Application properties below.

To install an application from a blueprint

1. Click Add application at the top right of the All applications tab.
2. Select Install from available packages.
3. Select the desired package.
4. In the resulting dialog box, enter the name of the application. The name will be shown as title of the application.
5. Enter an application key, used to identify this application.
6. Enter the path where the application can be reached.
7. Click Save to create the application.

For details on the fields, see also Application properties below.

To duplicate an application

Duplicating an application might be useful if you want to customize a subscribed application according to your needs. Duplicating a subscribed application creates a copy of the application as an own application, with a link to the original application.

1. Click Add application at the top right of the All applications tab.
2. In the upcoming dialog, select Duplicate existing application.
3. Select the desired application from the dropdown list, for example “Cockpit”.
4. In the next window, provide a name for the application, an application key to identify the application, and a path as part of the URL to invoke the application. Per default, the values of the original application are provided, extended by a number. If you set the path to the path of the original subscribed application, your own application will overrule the subscribed application.
   Info

   The platform restricts the use of the prefix “feature-” in the Name field. You cannot create applications using this prefix in the application name. This also applies to existing applications in cases where the duplicate application feature is used.
5. Finally, click Duplicate to create the application.

Info

In case the application has been subscribed to the tenant, there is an additional toggle Overrule subscribed application. If you turn this toggle on, the values for name, key and path will be inherited from the original application and your duplicated application will overrule the subscribed application. Turn it off, to modify the values.

For details on the fields, see also Application properties below.

Application properties

To display further details on an application, click it to open its Properties tab.

In the Properties tab, each application will show the following information, depending on the application type (hosted or external):

To edit an application

Simply click the application or click the menu icon at the right of an entry and then click Edit.

In the Properties tab, several fields can be modified, depending on the application type (see Application properties).

To delete an application

Click the menu icon at the right of an entry and then click Delete. You can also delete an application directly from the Properties tab in the application details.

If you delete an application that overwrites a subscribed application, the currently subscribed application becomes available to all users. Additionally, the users will then also benefit from future upgrades of the subscribed application.

It is not possible to delete subscribed applications. This can only be done by the owner of the subscribed application.

Uploading archives

For custom applications, multiple file versions can be stored in Cumulocity IoT when they were created by uploading either a ZIP file or a MON file. Each version is called an archive. You can upload different versions at the same time and switch between these versions.

To upload an archive

1. Open the application properties for the respective application by clicking on it.
2. Click the plus button at the bottom of the Activity log section and browse for the archive in your file system or simply drop the archive file.
3. Click Upload to upload the archive to your Cumulocity IoT account.

Once uploaded, the recently uploaded version is automatically the active version, that is the version of the application that is currently being served to the users of your account. This version cannot be deleted.

To restore an older application version

Users can restore previous versions of an application from an archive.

1. Open the application properties for the respective application by clicking on it.
2. In the Activity log section, open the context menu for the desired version by clicking the menu icon and select Set as active to make it the active version.

To reactivate a single application

If a hosted application is not deployed correctly, users may reactivate it.

1. Open the application properties for the respective application by clicking on it.
2. In the Activity log section, open the context menu for the desired version by clicking the menu icon and select Reactivate archive.

The selected application will be reactivated by removing the respective files from the application directory and unpacking the web application package again.

Packages

Packages are combinations of plugins and blueprints which can be packed together into a single file and then be deployed to the platform. Thus, packages offer better shareability and reusability of UI features across different applications and allow to add UI features to applications without coding knowledge.

Packages can contain two types of applications:

• Plugins can be used to extend existing applications without the need of re-building the application.
• Blueprints are combinations of multiple UI functionalities which can be hosted by the platform and can be used to create a new application from scratch.

Blueprint applications must be deployed, while plugins are added to other applications. This allows you to scaffold entire solutions or to extend existing ones. Due to the micro frontend technology, this can happen at runtime without rebuilding.

Switch to the Plugins tab of an application to view all plugins installed on an application.

Packages can be located on the Packages tab in the Applications page.

To add a new package click Add package at the top right.

By clicking on a package, you can see the package details such as Package overview which includes a description and images as well as some meta information which is taken from the package.json.

Additionally, it is possible to view all available plugins within the selected package at the right. To install a plugin click Install plugin and select the desired application.

In the Versions tab, you see all previously uploaded binaries related to the current package. The binaries displayed on this tab can be downloaded via the context menu next to each package version entry.

You can select or upload different versions. Versions indicate the state of the package. They can be used to verify whether a certain package is outdated and needs to be updated. By clicking on a version additional information is provided such as package contents, applications or plugins. Tags can be used to give versions meaningful names. The “latest” tag is used to indicate the default version which will be selected in case no tag is provided. The “latest” tag is set by default to the latest version whenever a version is uploaded without a given tag.

To switch to a different version open the context menu for the desired version and click Set as latest. To delete a version click Delete.

Features

Features are applications which are built-in and not represented by an explicit artifact (like microservices or web applications).

In the Features tab, you will find a list of all features subscribed in your tenant. In an Enterprise tenant, the following features are available by default:

Other features may show up, depending on the individual subscriptions of your tenant.

Managing and monitoring microservices

Click Microservices in the Ecosystem menu in the navigator to display a list or grid of all microservices subscribed to your account.

A microservice is a specific type of application, that is a server-side application used to develop further functionality on top of Cumulocity IoT. As web applications, microservices can either be subscribed to your tenant by the platform or by a service provider, or they can be owned by you as custom applications, see Custom microservices.

Subscribed microservices

Cumulocity IoT provides a variety of microservice applications for different purposes. Depending on your installation and/or optional services your tenant will show a selection of the potentially available applications.

Below you find a list of all microservices which are by default subscribed in a Standard tenant and/or Enterprise tenant. In addition, numerous optional microservices might be subscribed to your tenant.

Microservices subscribed by default

Custom microservices

To add a microservice as custom application

1. Click Add microservice at the top right.
2. In the resulting dialog box, drop a ZIP file or browse for it in your file system. Note that the size limit of the file to be uploaded is 500 MB.
3. The microservice application is created once the ZIP file has been successfully uploaded.

Microservice properties

To display further details on a microservice, click it to open its Properties tab.

In the Properties tab, each microservice will show the following information:

Below, you will additionally find information on the microservice version, as well as on its isolation level and billing mode, see Enterprise tenant > Usage statistics and billing > Microservice usage for details on these parameters.

Microservice subscription

At the top right of the Properties tab, you find a toggle to subscribe to or unsubcribe from a microservice.

Changing the subscription is only possible for custom microservices, that is microservices being owned by you.

Microservice permissions

In the Permissions tab you can view the permissions required for the respective microservice, and the roles provided for it.

Monitoring microservices

You can monitor microservices hosted by Cumulocity IoT in two ways.

Status information

The status of the microservice can be checked in the Status tab of the respective microservice application.

To view the status you need the following permissions: role Application management READ and role Inventory READ.

The following information is provided on the Status tab:

• Instances - number of active, unhealthy and desired microservice instances for the current tenant.
• Subscriptions - number of active, unhealthy and desired microservice instances for all subtenants subscribed to the microservice.
• Alarms - alarms for given application, provided in realtime.
• Events - events for given application, provided in realtime.
• Smart rules - list of applicable smart rules.

Alarms and events

Most of the alarms and events visible in the Status tab are strictly technical descriptions of what’s going on with the microservice.

There are two user-friendly alarm types:

• c8y_Application_Down - critical alarm which is created when no microservice instance is available.
• c8y_Application_Unhealthy - major alarm which is created when there is at least one microservice instance working properly, but not all of them are fully operating.

User-friendly alarms are created for the microservice owner tenant only. They are also automatically cleared when the situation gets back to normal, that is all the microservice instances are working properly.

User-friendly alarms can be used to create smart rules. For details on creating smart rules of various types, see Smart rules.

For example, to send an email, if a microservice is down, create an “On alarm send email” smart rule.

In the On alarm matching section, use c8y_Application_Down as an alarm type. As a target asset select the microservice which you would like to monitor, for example “echo-agent-server”.

Log files

Cumulocity IoT offers viewing logs which provide more details on the status of microservices owned by the tenant.

To view logs, open the Logs tab of the respective microservice.

At the top of the page, you can select the instance of the microservice, for which you want to view the logs.

Next to the instance dropdown you can select the time range for the log entries to be shown by selecting a date from the calendar and entering a time.

At the top right, additional functionality is provided:

• Download - to download the log data for a specified time range.
• Dark theme - to turn dark theme on or off.
• Auto refresh - to activate the auto refresh functionality. If activated, the displayed log data will automatically be refreshed every 10 seconds.

Initially, the Logs tab shows the latest logs of the microservice instance.

At the bottom right you find navigation buttons:

• First - directly navigates to the oldest available log entries for the microservice after its restart (maximum capacity 35 MB of logs).
• Previous - increases the time range in 10 minutes steps.
• Next - reduces the time range in 10 minutes steps.
• Last - directly navigates to the latest available log entries.

If no logs are available in the selected time range, a message is shown accordingly:

Managing business rules

Alarm mapping

Alarm mapping enables you to change the severity and text of alarms to adapt them to your business priorities. For example, a loss of the connection to a device is by default a MAJOR alarm but may be critical to you. To change this, add an alarm mapping to change alarms related to connection losses to CRITICAL.

Click Alarm mapping in the Business Rules menu to see a list of all alarm mappings.

For each alarm mapping, the alarm severity, the alarm type and a description (optional) are shown.

To add alarm mapping

1. Click Add alarm mapping in the top menu bar.
2. Enter the alarm type to be modified.
3. In the New description field, optionally enter a new description for the alarm. If you leave this field empty, the original text from the alarm will be kept.
4. Select the desired new severity, or select “Drop” to not show the alarm at all.
5. Click Save to save your settings.

To edit an alarm mapping

Expand an alarm mapping to edit it. You may modify the description and the alarm severity. The alarm type is not editable.

To delete an alarm mapping

To delete an alarm mapping, hover over it and click the delete icon which appears on hovering over the row.

Managing data

Retention rules

Retention rules gives you control on how long data is stored in your account. By default, all historical data is deleted after 60 days (configurable in the system settings).

You might however want to store measurements for 90 days for example, but delete alarms already after 10 days.

Retention rules are usually run during the night. When you edit a retention rule, you will not see an immediate effect in the Usage section on the Home screen of the Administration application.

Click Retention rules in the Management menu to view a list of retention rules configured for your account.

For each rule, the rule name, details on the data to be deleted (fragment type, type and source, see below) and the maximum age in days is provided.

The asterisk ("*") indicates that data with any value will be cleaned up.

Data types

The following data types are covered under retention rules:

• Alarms
• Audits
• Bulk operations
• Events
• Measurements
• Operations

To add a retention rule

1. Click Add rule in the top menu bar.
2. In the resulting dialog box, select the type of data to be cleaned up (alarms, measurements, events, operations, audit logs or all).
3. Enter a fragment type if you want to be more specific about the data to be cleaned up. To clean up all connection loss alarms with this rule, select “Alarm” and enter “c8y_UnavailabilityAlarm” as property into the Type field.
4. If you want to remove data only from a specific device, enter the device ID into the Source field.
5. Enter the Maximum age in days (max. allowed value is 10 years in days).
6. Click Save to save your settings.

The retention rule will be added to the list.

To edit a retention rule

Simply click the row of the rule you want to edit.

For details on the fields, see To add a retention rule.

To delete a retention rule

Hover over the row with the rule you want to delete and click the delete icon that appears on the right.

Managing files in the file repository

The file repository provides an overview of the files stored in your account.

Click Files repository in the Management menu to see a list of files.

The files listed can come from various sources. They can be software images, configuration snapshots taken from devices, log files from devices or web applications uploaded from the All applications page.

For each file, the name of the file, its owner, the file type (for example, image/bmp, text/csv), its size and the date when it was last updated is provided.

To upload a file from your file system

Click Upload file in the top menu bar. In the resulting dialog box, select a file to be uploaded. If you want to upload more than one file, click Add file to select another file. You may also delete a file before uploading by clicking the delete icon on the right of the file field.

To download a file from your account

Click the menu icon at the right of the respective row and then click Download.

To delete a file from your account

Click the menu icon at the right of the respective row and then click Delete.

Changing settings

From the Settings menu, administrators can manage various settings for the account:

• Configure authentication settings and single sign-on.
• Change the application settings.
• Manage the properties library.
• Provide SMS provider credentials.
• Manage the connectivity settings.

Changing authentication settings

Click Authentication in the Settings menu if you want to view or change the Login or TFA settings.

Login settings

In the Preferred login mode field, you can select one of the following options:

• OAI-Secure - recommended, since it provides high security, using authorization tokens to prove the identity of the user. Default login mode on creating new tenants. This mode is an enhancement of the previous OAuth Internal authentication (available prior to 10.13.0).
• Basic Auth - should be selected only for specific compatibility reasons, since it only provides basic security.
• Single sign-on redirect - can be selected only if SSO is configured. If selected, will remove Basic Auth and OAI-Secure login options.

This login mode will be used by the platform’s applications as the default method to authenticate users. Device authentication stays unchanged.

In the field Password validity limit, you can limit the validity of user passwords by specifying the number of days after which users must change their passwords. If you do not want to force your users to change passwords, use “0” for unlimited validity of passwords (default value).

By default, users can use any password with eight characters or more. If you select Enforce that all password are “strong” (green), users must provide strong passwords as described in Getting Started > User options and settings > To change your password.

Basic Auth restrictions

Even if OAI-Secure authentication is configured for users, basic authentication remains available for devices and microservices using the platform. To provide a higher security level the basic authentication can be restricted.

Use the Forbidden for web browsers toggle to disallow the usage of basic authentication for web browsers. Moreover you can specify the following parameters:

• Trusted user agents - this list is empty by default. If some user agent is added, all the HTTP requests containing this entry in the User-Agent header and having a valid basic authentication date will be accepted.
• Forbidden user agents - this list is empty by default. If some user agent is added, all the HTTP requests containing this entry in the User-Agent header and using basic authentication will be rejected.

OAI-Secure

OAI-Secure is a more secure alternative to the Basic Auth mode that also supports username and password login. In OAI-Secure mode the credentials in the initial request are exchanged for a JWT token that is set as a cookie in the web browser or returned in the response body. Based on the configuration OAI-Secure can support full session management or work as a standard JWT authentication where the user session lifetime is limited by the token expiration time.

OAI-Secure without the configuration related to the session management (session configuration turned off)

When there is no configuration related to the session, OAI-Secure issues a JWT token with a certain lifetime. If the token expires then the user is forced to re-login because token refresh is not supported. This behavior is very inconvenient for the user if the token lifetime is short because the user is forced to re-login frequently.

OAI-Secure with the configuration of the session management (session configuration turned on)

Using OAI-Secure with session configuration is more convenient and secure, and can be used to achieve a behavior which is similar to the authentication based on HTTP sessions.

The OAI-Secure token acts as a session identifier on the client side (web browser). Such a token identifier which is stored in the cookie can have a preconfigured short lifetime. Then, the Cumulocity IoT platform is responsible for renewing the session identifier without any user interaction. It is sufficient that the user’s action causes the web browser to send a request to Cumulocity IoT. Then, Cumulocity IoT can examine if the renewing of the session identifier should be executed and perform the operation if necessary. Cumulocity IoT offers extensive configuration related to this behavior so that tenant administrators can adjust the configuration to their needs.

If the Use session configuration option is enabled, the following settings can be configured on tenant level by a tenant administrator:

During the session token renewal the previous token is revoked and a new one is provided. The parameter renewal token delay defines the delay used to make this process smooth and not disturbing for the user. The old token is still valid for this period (1 minute by default). This way both tokens, old and new, are accepted by Cumulocity IoT. This parameter is only configurable on platform level and cannot be modified by the tenant administrator.

Token generation with OAI-Secure

OAI-Secure is primarily based on JWT stored in a browser cookie. It can be also used to generate JWT in the response body. The lifespan of the tokens and the cookie is configurable by tenant options belonging to the category oauth.internal.

Lifespan configuration of JWT stored in the cookie

JWT tokens stored in the browser cookie have a default validity time of two weeks. This can be changed with tenant options:

• category: oauth.internal;
• key: basic-token.lifespan.seconds;

The minimum allowed value is 5 minutes.

Lifespan configuration of cookies

Cookies used to store a JWT token in a browser have their own validity time that can be changed with tenant options:

• category: oauth.internal;
• key: basic-user.cookie.lifespan.seconds;

The default value is two weeks. To have the cookie deleted when the user closes the browser, set it to any negative value.

Lifespan configuration of JWT in response body

The lifespan of JWT tokens generated in the response body is configured with the following tenant options:

• category: oauth.internal;
• key: body-token.lifespan.seconds;

Refer to the Tenant API in the Cumulocity IoT OpenAPI Specification for more details.

TFA settings

Select the checkbox Allow two-factor authentication if you want to allow TFA in your tenant (only possible for administrators).

You may select one of the following options:

• SMS-based, supporting the following settings:

  • Limit token validity for - lifetime of each session in minutes. When the session expires or a user logs out, the user must enter a new verification code.

  • Limit verification code validity for - here you can set the lifetime of each verification code sent via SMS. When the verification code expires, the user must request a new verification code in order to login.

    Info

    An SMS gateway microservice must be configured for the tenant. Naturally only users with a valid phone number associated can use this functionality.

• Google Authenticator (Time-based One-Time Password = TOTP), supporting the following setting:

  • Enforce TOTP two-factor authentication on all users - when enabled it will force all users to set up their TFA on login. Otherwise each individual user can choose to activate it or not.

Click Save TFA settings to apply your settings.

Changing application settings

Click Application in the Settings menu to change applications settings.

Under Default application, you can select a default application from the list which will apply to all users within the tenant. Whenever the platform is accessed, for example, by domain name only, without mentioning a specific application, the application selected as default application is used as default landing page.

Under Access control, administrators can enable cross-origin resource sharing or “CORS” on the Cumulocity IoT API.

The Allowed Domain setting will enable your JavaScript web applications to directly communicate with REST APIs.

• Set it to “*” to allow communication from any host.
• Set it to http://my.host.com, http://myother.host.com to allow applications from http://my.host.com and from http://myother.host.com to communicate with the platform.

For further information, see http://enable-cors.org.

Managing the properties library

Click Properties library in the Settings menu, to add custom properties to inventory objects, alarms, events and tenants.

With custom properties, you can extend the data model of Cumulocity IoT built-in objects. You may create the following custom values:

• Custom inventory properties are used to extend the inventory data model. They can be used in the “Asset table” and “Asset properties” widgets.
• Custom tenant properties are available during tenant creation. The custom properties can be edited under Subtenants in the Custom properties tab of each tenant. Additionally, these properties can be viewed and exported in the Usage statistics.
• Custom alarm and event properties can be used as custom fields which can be added to your reports and will be available in the Export page in the Cockpit application.

To add a custom property

1. Select the tab for the desired property and click Add property.

2. In the resulting dialog box, provide a unique name as identifier and a label for the property and select its data type from the dropdown list.

3. Additionally, select validation rules for the new property:

4. Click Save to create the new property.

To edit a custom property

1. Click on the name of a property in the list to open it.
2. Do your edits. For details on the fields see To add a custom property.
3. Click Save to save your settings.

To remove a custom property

1. Click on the name of a property in the list to open it.
2. Click Remove to delete the property.

Providing SMS provider credentials

SMS are used throughout the platform for various features like two-factor authentication and user notifications, for example, on alarms.

By providing your credentials you enable platform features that utilize SMS services.

To enter SMS provider credentials

1. Click SMS provider in the Settings menu.

2. In the SMS provider page, select one of the available SMS providers from the SMS provider dropdown field. You can start typing to filter items and more easily find your preferred provider.

3. In the resulting dialog, enter the required credentials and properties or specify optional settings, which differ depending on the provider you selected.

4. Click Save to save your settings.

Managing the connectivity settings

In the Connectivity page, you can manage credentials for different providers. In order to add or replace credentials ADMIN permissions are required.

The following provider settings may currently be specified:

• Actility LoRa
• Sigfox
• SIM

To provide or replace credentials

1. Switch to the tab of your desired provider.
2. Enter the URL of the provider.
3. Enter the credentials of your provider platform. Depending on the provider, these credentials will be either the credentials of your account in the provider platform or the credentials with which you can register in the Cumulocity IoT connectivity page, will be displayed in your account in the provider platform.
4. Finally, click Save to save your settings.

Depending on the provider you have selected, there may be additional fields, which will be explained in the respective agent documentation, see Protocol integration guide.

Two-factor authentication

The two-factor authentication (TFA) is an extra layer of security that only completes authentication with a combination of two different factors: something the users know (username and password) and something they have (for example, smartphone) or something they are (for example, fingerprint). You can read more on how to configure TFA in the authentication settings section.

There are two possible TFA strategies: Short Message Service (SMS) and Time-based One-Time Password (TOTP). Only one of them can be active at a time.

To check whether TFA is enabled for a certain user, go to the Users page and see the TFA status column right from the password strength column. A key icon indicates that TFA is enabled and by hovering over it you can see the strategy that is being used.

SMS

How to enable a specific user

1. In the Administration application, navigate to Accounts > Users and select a user in the Users page.
2. Select the checkbox next to Enable two-factor authentication.
3. Click Save.

TOTP (Google Authenticator)

Setup

Opposed to the SMS strategy TOTP must be set up by each user. By opening User settings in the top right corner and then clicking Set up two-factor authentication they can start the setup process.

IF TFA is enabled, the user will be presented a QR code at login, that needs to be scanned with the previously installed TOTP mobile application.

Alternatively, the secret can also be inserted manually in case scanning the QR code is not an option.

After this process the mobile application will generate a new code every 30 seconds that can be used to complete the authentication process.

Revoking the secret

If a user loses access to the TFA code, for example, if a user loses the phone or uninstalls the application, and needs to set it up again, the secret must be revoked. TOTP must be set up by each user individually.

1. In the Administration application, navigate to Accounts > Users and select a user in the Users page.
2. Scroll down to Login options.
3. Click Revoke TOTP secret.
4. Confirm by clicking Revoke.

Disabling TOTP for a user

If a user wants to turn off the use of TOTP (and thus TFA) completely, the secret must be revoked and TOTP enforcement must be disabled. TOTP must be set up by each user individually.

To disable TOTP for a user follow these steps:

1. In the Administration application, navigate to Accounts > Users and select the user in the Users page.
2. Scroll down to Login options.
3. Clear the Enforce TOTP for the user checkbox.
4. Click Revoke TOTP secret.
5. Confirm by clicking Revoke.
6. Click Save to save your changes.

Configuring single sign-on

Cumulocity IoT provides single sign-on (SSO) functionality, that allows a user to login with a single 3rd-party authorization server using the OAuth2 protocol, for example Azure Active Directory (AAD). Currently authorization code grant is supported only with access tokens in form of JWT. SAML is not supported.

Configuration settings

To enable the SSO feature, the administrator must configure a connection with the authorization server. This is done in the Administration application.

Configuration access

SSO configurations can be configured to be exclusively accessible by the Management tenant, thus preventing other tenants from accessing the configurations. Users of such tenants are unable to update the configuration. This removes the risk of an incorrectly configured SSO, which can prevent other users from logging in via SSO. The Management tenant can grant or restrict access to SSO configurations for specific tenants. For more information about configuration access, refer to the Login options API in the Cumulocity IoT OpenAPI Specification.

Configuration view

Click the Single sign-on tab in the Authentication page. Note that the tab is only visible for tenants which have access to the SSO configuration.

At the top left, you can select a template. The selected option has an effect on the look of the panel. The default template is “Custom” which allows for a very detailed configuration with virtually any authorization server using OAuth2 authorization code grant. Other templates provide simplified views for well known and supported authorization servers. In the next steps there will first be a definition of how to use the “Custom” template followed by a view dedicated to Azure Active directory.

Custom template

As the OAuth protocol is based on the execution of HTTP requests and redirects, a generic request configuration is provided.

The first part of the Single sign-on page consists of the request configuration. Here you can configure the HTTP request address, request parameters, headers and body in case of token and refresh requests. The authorize method is executed as a GET, token and refresh method by POST requests.

Specifying a logout request is optional. It performs front-channel single logout. If configured, the user is redirected to the defined authorization server logout URL after logging out from Cumulocity IoT.

The Basic section of the Single sign-on page consists of the following configuration settings:

Each time a user logs in, the content of the access token is verified and is a base for user access to the Cumulocity IoT platform. The following section provides the mapping between JWT claims and access to the platform.

In the example above, if a user tries to login a decoded JWT claims look like:

{
...
"user": "john.wick",
...
}

The user will be granted access to the global role “business” and the default application “cockpit”.

If no access mapping matches the user access token, the user will get an “access denied” message when trying to log in. This will also happen if there is no access mapping defined causing all users to be unable to log in using SSO.

New rules can be added by clicking Add access mapping at the bottom. An access mapping statement can consist of multiple checks like in the image below. You can add a rule to an existing statement by clicking and. Click the Minus button to remove a rule.

New roles are added to the user from every matching access mapping. If one access mapping statement assigns the role “admin” and a second one assigns the role “business” and both meet the defined conditions, then the user will be granted access to the global roles “business” and “admin”."

When using “=” as operator you may use wildcards in the Value field. The supported wildcard is asterisk (*) and it matches zero or more characters. For example, if you enter “cur*” this matches “cur”, “curiosity”, “cursor” and anything that starts with “cur”. “f*n” matches “fn”, “fission”, “falcon”, and anything that begins with an “f” and ends with an “n”.

In case the asterisk character should be matched literally it must be escaped by adding a backslash (\). For example, to match exactly the string “Lorem*ipsum” the value must be “Lorem\*ipsum”.

In this case the following claim will match the condition:

{
...
"user": {
   "type": "human"
},
"role": [
   "ADMIN"
],
...
}

There is an option to verify that a value exists in a list via the “in” operator. Values can also be embedded in other objects. In this case a dot in the key implies looking into an embedded object.

By default, the configuration for dynamic access mapping is selected: Roles selected in the rules above will be reassigned to a user on each log in and other ones will be cleared. This means that dynamic access mapping assigns user roles, based on the access token, on every user login. It is not possible to change the user roles inside Cumulocity IoT as they would be overwritten on the next user login. To change this behavior, select one of the following radio buttons at the bottom of the Access mapping section:

• Use dynamic access mapping only on user creation - when selected, dynamic access mapping will be used only when a new user logs in to fill in the initial roles. When a user already exists in Cumulocity IoT, the roles will not be overwritten nor updated.

• Roles selected in the rules above will be reassigned to a user on each log in and other ones will be unchanged - when selected, dynamic access mapping will be used on every login, but the roles not listed in the access mapping configuration will not be updated. Only the roles that are listed in the defined access mapping rules will be overwritten.

Selecting one of the two options mentioned above will also enable admins to edit roles of SSO users in the user management. For details, refer to Administration > Managing permissions in the User guide.

When a user logs in with an access token, the username can be derived from a JWT claim. The claim name can be configured in the User ID configuration window. The user ID can be set to any top-level field of the authorization token payload sent from the authorization server to the platform during the login process. We recommend you inspect the authorization token in the audit logs to make sure the correct field is used (see Troubleshooting).

If the Use constant value checkbox is selected, a constant user ID is used for all users who log in to the Cumulocity IoT platform via SSO. This means that all users who log in via SSO share the same user account in the Cumulocity IoT platform. Usage of this option is not recommended.

Next, the User data mappings can be configured:

On user login, user data like first name, last name, email and phone number can also be derived from JWT claims. Each field represents the claim name that is used to retrieve the data from JWT. The user data mapping configuration is optional and as admin manager you can only use the required fields. If the configuration is empty or the claim name cannot be found in the JWT token then the values in the user data are set as empty.

Mapping for alias is not available because it is not used in the context of SSO login.

Each access token is signed by a signing certificate. The following options are available to configure the signing certificates.

1. By specifying the Azure AD certificate discovery address.

2. By specifying the ADFS manifest address (for ADFS 3.0).

3. By providing the public key of a certificate manually to Cumulocity IoT. A certificate definition requires an algorithm information, public key value and validity period.

4. By specifying the JWKS (JSON Web Key Set) URI. JWKS is a set of JWK objects containing a public key used to verify tokens issued by the authorization server.

Placeholders

Inside some fields you can use placeholders that are resolved by Cumulocity IoT at runtime. Available placeholders are:

These placeholders can be used in authorization requests, token requests, refresh requests and logout request in the fields:

• URL
• Body
• Headers
• Request parameters

To use a placeholder in a field, put it inside two curly brackets preceded with a dollar sign:

Placeholders can also be used as a part of text:

Integration with Azure AD

The integration was successfully verified against Azure AD using OAuth2 and OpenID Connect (SAML is not supported). The configuration steps are available in https://docs.microsoft.com/en-us/azure/active-directory/develop/v1-protocols-oauth-code.

The following steps illustrate how to use Azure AD (Azure Active Directory) for SSO in Cumulocity IoT.

Configuring Azure AD

To connect Cumulocity IoT to Azure AD, you must create an App registration in Azure AD.

1. Select App Registrations under Manage on the left and at the top click New Registration.
2. In the resulting window, provide a name for the new App registration.
3. As Redirect URI type select “Web” and enter the URL to your tenant OAuth endpoint, for example “https://documentation.cumulocity.com/tenant/oauth”*". You can derive this value from your Cumulocity IoT tenant. Navigate to Administration > Settings > Authentication > Single sign-on. The redirect URL is prefilled by the platform.
4. Click Register to create the App registration.

The overview in the details page of your App registration contains several IDs and endpoints that you need later on, like the Application (client) ID and the Directory (tenant) ID (for your tenant in Cumulocity IoT).

Moreover, the App registration requires a secret which is used by Cumulocity IoT for the authentication.

1. In the details page of your App registration, click Certificates & secrets under Manage on the left.
2. Select New client secret.
3. Enter a description and select an expiry time.
4. Click Add to add the secret.

Optionally, create a user in Azure AD that you would like to use with Cumulocity IoT.

Configuring SSO for Azure AD in Cumulocity IoT

Navigate to Settings > Authentication in the Administration application and switch to the Single sign-on tab.

Retrieve the relevant information by a GET request to:

https://login.microsoftonline.com/<Directory tenant ID>/.well-known/openid-configuration

The response will look like this:

  {
      "token_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/oauth2/token",
      "token_endpoint_auth_methods_supported": [
          "client_secret_post",
          "private_key_jwt",
          "client_secret_basic"
      ],
      "jwks_uri": "https://login.microsoftonline.com/common/discovery/keys",
      "response_modes_supported": [
          "query",
          "fragment",
          "form_post"
      ],
      "subject_types_supported": [
          "pairwise"
      ],
      "id_token_signing_alg_values_supported": [
          "RS256"
      ],
      "response_types_supported": [
          "code",
          "id_token",
          "code id_token",
          "token id_token",
          "token"
      ],
      "scopes_supported": [
          "openid"
      ],
      "issuer": "https://sts.windows.net/4d17551b-e234-4e18-9593-3fe717102dfa/",
      "microsoft_multi_refresh_token": true,
      "authorization_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/oauth2/authorize",
      "device_authorization_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/oauth2/devicecode",
      "http_logout_supported": true,
      "frontchannel_logout_supported": true,
      "end_session_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/oauth2/logout",
      "claims_supported": [
          "sub",
          "iss",
          "cloud_instance_name",
          "cloud_instance_host_name",
          "cloud_graph_host_name",
          "msgraph_host",
          "aud",
          "exp",
          "iat",
          "auth_time",
          "acr",
          "amr",
          "nonce",
          "email",
          "given_name",
          "family_name",
          "nickname"
      ],
      "check_session_iframe": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/oauth2/checksession",
      "userinfo_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/openid/userinfo",
      "kerberos_endpoint": "https://login.microsoftonline.com/4d17551b-e234-4e18-9593-3fe717102dfa/kerberos",
      "tenant_region_scope": "EU",
      "cloud_instance_name": "microsoftonline.com",
      "cloud_graph_host_name": "graph.windows.net",
      "msgraph_host": "graph.microsoft.com",
      "rbac_url": "https://pas.windows.net"
  }

Now enter the following values in the configuration:

Optionally single logout can be configured:

After configuring SSO in Cumulocity IoT, you can try to login. You might get an “access denied” error, if this user has no access mapping yet. But you should see a “User login” event and a JSON web token in the audit logs (Administration > Accounts > Audit logs).

The content looks like this:

{
    "typ": "JWT",
    "alg": "RS256",
    "x5t": "2ZQpJ3UpbjAYXYGaXEJl8lV0TOI",
    "kid": "2ZQpJ3UpbjAYXYGaXEJl8lV0TOI"
} {
    "aud": "7fd1ed48-f4b6-4362-b0af-2b753bb1af2b",
    "iss": "https://sts.windows.net/4d17551b-e234-4e18-9593-3fe717102dfa/",
    "iat": 1660815959,
    "nbf": 1660815959,
    "exp": 1660820080,
    "acr": "1",
    "aio": "ASQA2/8TAAAAg0xPUeu6HKAlgK3vZJsW8TdejlNB3BGSz4XFmJLzPt0=",
    "amr": [
        "pwd"
    ],
    "appid": "7fd1ed48-f4b6-4362-b0af-2b753bb1af2b",
    "appidacr": "1",
    "family_name": "Doe",
    "given_name": "Jane",
    "ipaddr": "51.116.186.93",
    "name": "Jane Doe",
    "oid": "afbff765-592e-4ae1-9334-b968dad59c84",
    "rh": "0.AXkAG1UXTTTiGE6Vkz_nFxAt-kjt0X-29GJDsK8rdTuxryuUAAw.",
    "scp": "openid User.Read User.Read.All User.ReadBasic.All",
    "sub": "zRTnTukAjU11ME1aqiPMOdwk9jVNmInXbeuoUr_3cYk",
    "tid": "4d17551b-e234-4e18-9593-3fe717102dfa",
    "unique_name": "jane@admtest.onmicrosoft.com",
    "upn": "jane@admtest.onmicrosoft.com",
    "uti": "IcTqpKPIA0G_P1Lyw6xBAA",
    "ver": "1.0"
} [
    256 crypto bytes
]

You can now use the claims to map user attributes and give permissions in the same way as described in the section on the custom template.

Integration with Keycloak

Global logout feature (available for Keycloak in version 12.0.0 and higher)

Integration with Keycloak allows administrators to use a global logout feature based on OpenId Connect. An event from the Keycloak authorization server is sent to all applications (including the Cumulocity IoT platform) with a logout token that is verified in the same way as the token used in the login process. This feature allows ending sessions on both sides, applications and Keycloak, for the particular user.

To configure the global logout feature follow these steps:

1. Go to the administrator console.
2. Select the realm used in the SSO configuration for the tenant.
3. Navigate to Clients in the Configure section.
4. Select the client used in the SSO configuration.
5. Set the Backchannel Logout URL field to “https://mytenant.cumulocity.com/user/logout/oidc”.

To use the global logout feature follow these steps:

1. Go to the administrator console.
2. Select the realm used in the SSO configuration for the tenant.
3. Navigate to Users in the Manage section.
4. Select the particular user.
5. Navigate to the Sessions tab in the Manage section and click Logout.

Logout all users feature

Keycloak also provides a feature which allows administrators to logout all SSO users.

To configure the logout all users feature follow these steps:

1. Go to the administrator console.
2. Select the realm used in the SSO configuration for the tenant.
3. Navigate to Clients in the Configure section.
4. Select the client used in the SSO configuration.
5. Set the Admin URL to “https://mytenant.cumulocity.com/user/keycloak”

To use the logout all users feature follow these steps:

1. Go to the administrator console.
2. Select the realm used in the SSO configuration for the tenant.
3. Navigate to the Sessions tab in the Manage section and click Logout all.

Note that the logout event for all users is only performed in the scope of one Keycloak realm. Moreover, it is only sent for those tenants where the client being used as a configuration for the SSO feature has the correct Admin URL value.

In the Session tab, the Keycloak administrator can also check how many active sessions exist on the respective client and estimate how many tenants and users will be affected by the logout event.

To confirm if the logout event for all users or a single user has been received by the tenant, the Cumulocity IoT administrator can verify if there is information about the logout event in the audit logs. The audit logs are available in the Administration application under Accounts in the Audit Logs tab.

Troubleshooting

It can be particularly helpful to inspect the content of the authorization token sent to the platform as some of its fields contain the information required for the correct configuration described above.

In Administration application, after clicking on Accounts > Audit logs you can filter by the category “Single sign-on” and look for entries “Json web token claims”.

The contexts of the token will be presented in JSON format.

Platform configuration settings

From the Management tenant, you can configure properties which apply globally to the whole Cumulocity IoT deployment.

Click Configuration in the Settings menu, to access the Configuration page.

Most of the settings you can configure here are also available in the Enterprise tenant. For details, refer to Enterprise tenant > Customizing your platform.

In addition, the following settings can be configured in the Management tenant only.

Passwords

In the Passwords section, you can specify password settings like default strength, length or validity for the users in your tenant.

Select the checkbox Enforce “green” passwords for all users to enforce the users in your tenant to use passwords that meet the conditions for “green” passwords, see also Getting started > User options and settings.

• Password validity limit (days) - the number of days a password may be valid before it must be reset; minimum value is “0”, maximum value is “999999”. Leave empty to use the value from the tenant options configured in the Management tenant, see Cumulocity IoT Core - Operations guide.
• Password history size - the number of times before the current password can be reused. Minimum value is “0”, preset value is “10”.
• Minimum length of “green” password - the minimum number of characters which are required for a safe password. Minimum (and preset) value is “8”, maximum value is “32”. Leave empty to skip this constraint.

Support user

In the Support user section you can configure the parameters for the support user access for subtenant users.

This feature enables Cumulocity IoT platform providers (Software AG in case of the public cloud instances or service providers with on-prem installations) to support their customers by accessing their users using a support user. A support user is a user in the Management tenant that has specific permissions, that is, to access subtenant users in case of any issues. Refer to Enterprise tenant > Support user access for more information.

In the field Activate support user, specify if support user access is activated for subtenant users. Possible values you can enter here are:

• true - support user access is activated for all subtenants by default. A support user can log into any subtenant as any user. Note that subtenant users cannot disable access themselves.
• false - support user access is deactivated for all subtenants, but can be explicitly enabled for a subtenant. A support user can log in only to subtenants for which at least one user has explicitly enabled such access.
• An explicit date in date-time format, until when support user access should remain activated. If no date is specified the value is set to “No limit”.

In the Validity limit field, you can optionally specify the support duration, that means, for how many hours support user access will be prolonged after each support user request from a subtenant user. Enter a number specifying the number of hours. The default value is 24 hours.

The expiry date-time will be updated based on the duration specified in the Validity limit field, for example, if the current expiry date-time is 01/09/2018 15:00 and duration has been kept at 24 hours, the enabling support user will update the expiry date to 01/10/2018 15:00.

Details on the status of support requests and support user access for a tenant can be found in the Properties tab of the tenant, see Enterprise tenant > Managing tenants.

Configuring a support user

A support user is a user in the Management tenant with specific permissions. This user can log in to the target tenant and impersonate the target user.

To configure a user in the Management tenant as support user, you must assign the relevant roles to the user. This can either be done by using a global role or by inventory roles.

Using a global role

1. Create a role “Support” with “Support READ” and “Support ADMIN” permission.
2. Assign the role “Support” to the respective user and remove all other roles for the user.

Using inventory roles

Using inventory roles, you can selectively assign a support user for specific subtenants.

1. Create an inventory role called “Support” with type = “*” and permission = “All”.
2. Create a group of all subtenants which you want to be supported by the user.
3. Assign the “Support” inventory role to above group as described in Administration > Managing permissions > Assigning inventory roles to users.