This page covers how to add and configure the OpenDaylight connector using GroundWork Cloud Hub. The connection requires a unique set of parameters (e.g., endpoint, credentials). You will need your GroundWork server and virtual environment connector parameters handy.




1.0 Adding a New Connection

The initial Net Hub screen is used to add, start, stop, modify, or delete available connectors. Follow the steps below to add a connection. You will need to create a new connection in this way for each region to be monitored. Log in to GroundWork Monitor as an Administrator. Select (1) GroundWork Administration > GroundWork Net Hub. (2) Click +Add corresponding to the OpenDaylight connector icon.

To access Net Hub, log in to GroundWork Monitor as an Administrator and select (1) GroundWork Administration > GroundWork Net Hub.

The initial Net Hub screen is used to (2) Add new, or Start, Stop, Modify, obtain Status for, or Delete configured connectors.

The Start option enables a configured connector to begin the discovery and data collection process. If you decide you do not want to monitor a particular region, simply select Stop for the corresponding connector, the connectors configuration will be maintained for a subsequent start. Modify opens the Configuration page with a link to the Metrics screen. To stop and completely Delete a connection, see How to delete hosts. To keep a Cloud Hub connector configuration and temporarily suspend its monitoring, see Black List.

To (3) add a new connection click +Add corresponding to the OpenDaylight connector icon. You will need to create a new connection in this way for each region to be monitored.

Figure: Adding a connection
Adding a connection

Next, in the configuration page (shown below) you will need to enter both the GroundWork server and remote server parameters. The data the GroundWork server receives comes from the remote virtualization server. The information is pulled from the API on a periodic basis based on the check interval that is set.

The (1) Groundwork Server is where Cloud Hub will store OpenDaylight metrics. Often, this is the same server as where Cloud Hub is running. However, Cloud Hub can also be run in a distributed environment, on its own node in a GroundWork cluster. Here we enter the GroundWork server parameters, each described in the first table below.

Next enter values for the remote (2) OpenDaylight Server, shown below and described in the second table.

Validate both server configurations by selecting the (3) Test button which will check if the connections are accessible with the given credentials. A dialog will be displayed with either a success message or, if the server cannot be contacted, an error message will be displayed with information describing why the connection failed.

And after the remote server parameters have been entered and verified, click (4) Save to save and write the entries to an XML file in the GroundWork server /usr/local/groundwork/config/cloudhub directory. The Cloud Hub connector is assigned an agent ID and that in turn becomes a record locator in Foundation when you begin monitoring. After the credentials have been validated click Next to start customizing metrics for this connection.

Figure: OpenDaylight connector
OpenDaylight connector

Table: GroundWork server values

GroundWork Server Version Indicates the minimum GroundWork Monitor version needed. In other words, a version below the indicated value is incompatible.
Display Name This is the configuration’s name displayed in the list of Cloud Hub connectors on the Cloud Hub home page.
GroundWork Server Name The host name or IP address where a Groundwork server is running. A port number should not be entered here. If Groundwork is running on the same server, you can enter localhost.
Merge hosts on GroundWork Server? If checked, this option combines all metrics of same named hosts under one host. For example, if there is a Nagios configured host named demo1 and a Cloud Hub discovered host named demo1, the services for both configured and discovered hosts will be combined under the hostname demo1 (case-sensitive).
Is SSL enabled on GroundWork Server? Check this box if the GroundWork server is provisioned with a secure HTTPS transport.
GroundWork Web Services Username This is the provisioned user name granted API access on the GroundWork server.
For all systems, make sure the Web Services Username and Password match with the entries in the file.

GroundWork Web Services Password The corresponding API Token (password) for the given Username on the GroundWork server, see GroundWork Administration > GroundWork License > Webservices API Account Info Token (encrypted).
For all systems, make sure the Web Services Username and Password match with the entries in the file.

Table: OpenDaylight server values

Is SSL enabled on OpenDaylight Server? Check this box if the OpenDaylight server is configured for secure HTTPS.
OpenDaylight Server URL This is the URL for the OpenDaylight virtualization server, optional port, (e.g.,
OpenDaylight Server Username
The provisioned Username granted API access on the OpenDaylight server.
OpenDaylight Server Password
The corresponding Password for the given Username on the OpenDaylight server.
Check Interval (in mins) This is the polling interval for collecting monitoring data from the virtual instance and sending it to the GroundWork server. The value is in minutes.
Connection Retries (-1 infinite) This entry is the number of retries for the connection and sets a limit on how many attempts are made after a failure. If you set this to -1, the retrying goes on forever. The number set indicates how many connections are attempted before the connection is left inactive (until you restart it).

2.0 Determining Metrics To Be Monitored

The OpenDaylight metrics page is where you customize the lists of metrics being gathered for a connection. Out of the box, a complete list of metrics is provided for clusters, hosts, and OpenDaylight services.

The selections made are applied to every instance discovered in the region. The set is saved on the GroundWork server in the /usr/local/groundwork/config/cloudhub/profiles directory as a profile in an XML file. The selections become effective both against new instances that may be discovered as well as already monitored instances.

Figure: OpenDaylight profile metrics
OpenDaylight profile metrics

Table: OpenDaylight profile options

Attribute The name of the service attribute (the metric name reported by the virtualization server).
Monitored When on (checked) the service will be monitored.
Graphed When on (checked) the service will be graphed.
Warning and Critical Thresholds These values control the triggering of alerts. A Warning number larger than the Critical value will cause Cloud Hub to detect the metric as a trigger. Choosing a -1 in a threshold box will disable triggering on that alert. A metric is considered inactive if it is not monitored.
Service Name Cloud Hub automatically creates service names based on the metric name gathered from a virtualization server. The Service Name option adds the ability to report the polled metrics under a unique name that is set by the Administrator. Leaving the Service Name field blank defaults to the metric name reported by the virtualization server. All Cloud Hub connectors now support the editable Service Name feature.
Description A description of the service attribute.


cloud cloud Delete
virtualization virtualization Delete
hybrid hybrid Delete
hub hub Delete
metrics metrics Delete
connectors connectors Delete
opendaylight opendaylight Delete
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