Creating an Agent
Here is a quick guide for creating your first Object Type in Contextual.
Access your Contextual Tenant Workspace
Select Components > Agents from the main menu
Provide the basic Definition...
Agent Id - permanent, must be unique
Agent Name - required, editable
Agent Description - optional, editable
Agent Type - Specifies the trigger type for the agent:
Event to Flow - Agent receives asynchronous events from Object Type triggers or other Agents
HTTP to Flow - Agent processing incoming HTTP requests on an agent-specific URL: <agentId>.service.<tenantName>.my.contextual.IO
Flow - once you specify the agent type, a drop-down list of available flows will appear and allow you to select a flow to be used for this agent.
Entry Point - if the flow supports more than one entry point, then a drop-down will appear that allows you to select the entry point for this specific agent deployment.
Image (version) - specifies the version of the agent runtime to be used for this agent.
Parallel Instance Scaling Type - allows for the specification of the auto-scaling type:
Compute Threshold - specifies a percentage CPU threshold which if exceeded consistently, will cause additional instances of the agent to be deployed.
Event Lag - specifies the number of unprocessed events which, if exceeded, will cause additional instances of hte agent to be deployed.
Parallel Instances - specifies the number of agents to be deployed as a minimum and a maximum number of instances
Minimum - the minimum number of instances must be at least 1 but can be more.
Maximum - the maxinum number of instances must be greater than or equal to the minimum, but can be more.
Note: if the minimum and maximum number of instances are the same, then auto-scaling is effectively disabled.
Event Lag Threshold - if "Event Lag" is selected for the scaling type, then this field specifies the number of unprocessed events which, if exceeded, will trigger the deployment of an additional agent.
Instance Compute - if "Compute Threshold" is selected for the scaling type, then this field specifies the percentage of CPU utilization which, if exceeded, will trigger the deployment of an additional agent.
Instance Compute - specifies the size of the agent (small, medium, large). The agent sizes corresponding to a specific mCPU capacity assigned to the agent.
Environment Variables - allows the user to add environment variable name and value pairs that are accessible at runtime by the flow that is being executed, allowing for flows to be made configurable based on the environment variables provided.
Click Create
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