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Introduction
Controllers are used to orchestrate Agents that execute jobs:
- A Controller is assigned any number of Agents.
- One or more Controllers can be registered with a single JOC Cockpit instance.
Controllers can be clustered for high-availability, for details about the architecture see JS7 - Controller Cluster.
Controller clustering is subject to the agreements of the JS7 - License:
- Use of Standalone Controllers:
- available to Open Source License holders and to commercial license holders.
- Use of Controller Clusters:
- available to commercial license holders,
- for details see JS7 - Management of Controller Clusters.
Manage Standalone Controllers
The JS7 - Controller Installation On Premises and JS7 - Controller Installation for Docker Containers articles explain the installation of Standalone Controllers.
The
icon in the JOC Cockpit main menu offers to select the Manage Controllers/Agents view:
This brings forward the following view:
- The view is grouped in Controllers (indicated by testsuite and standalone).
- For each Controller separate lists of Standalone Agents and Cluster Agents are displayed.
Add Standalone Controller
To add a Standalone Controller users can start from the New Controller button in the right hand upper corner.
This brings forward the following popup window:
Explanation:
- Title: An individual description that can be searched for.
- URL: The protocol HTTP or HTTPS, host name or IP address and port by which the Controller is accessible to the JOC Cockpit.
- Test Connection: It is recommended to test the connection between JOC Cockpit and the Controller.
- Users should consider that firewalls can block access from JOC Cockpit to a Controller.
- Use of a Proxy Service might require to adjust the URL.
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With deletion of a Controller any Agents are removed from the Controller and from the JOC Cockpit inventory.
- Before deleting the Controller from the JOC Cockpit inventory
- any Agents registered with the Controller should be shutdown and their journals should be removed:
- Agents can act autonomously and might continue to execute workflows for which orders are still available.
- An Agent's journal is located in the
state
sub-directory of its configuration directory.
- the Controller instance should be shutdown and its journal should be removed:
- Controllers acts independently from JOC Cockpit and maintain network connections to Agents.
- A Controller's journal is located in the
state
sub-directory of its configuration directory.
- any Agents registered with the Controller should be shutdown and their journals should be removed:
- Deletion of a Controller does not remove workflows and other scheduling objects from the JOC Cockpit inventory.
- Scheduling objects can be deployed to any connected Controller.