Using a CTS Trigger

Prerequisites

You have created an agency on IAM. For details, see Configuring Agency Permissions.

Creating a CTS Trigger

1. Log in to the FunctionGraph console. In the navigation pane, choose Functions > Function List.
2. On the Function List page, click Create Function in the upper right corner.
3. Set the following parameters:
   • Function Name: Enter a function name, for example, HelloWorld.
   • Agency: Select Use no agency.
   • Enterprise Project: Select default.
   • Runtime: Select Python 2.7.

4. Click Create Function.
5. On the Code tab page, copy the following code to the code window and click Deploy.

   # -*- coding:utf-8 -*-
   '''
   CTS trigger event:
   {
     "cts":  {
           "time": "",
           "user": {
               "name": "userName",
               "id": "",
               "domain": {
                   "name": "domainName",
                   "id": ""
               }
           },
           "request": {},
           "response": {},
           "code": 204,
           "service_type": "FunctionGraph",
           "resource_type": "",
           "resource_name": "",
           "resource_id": {},
           "trace_name": "",
           "trace_type": "ConsoleAction",
           "record_time": "",
           "trace_id": "",
           "trace_status": "normal"
       }
   }
   '''
   def handler (event, context):
       trace_name = event["cts"]["resource_name"]
       timeinfo = event["cts"]["time"]
       print(timeinfo+' '+trace_name)

6. Choose Configuration > Triggers and click Create Trigger.
   Figure 1 Creating a trigger
   

7. Configure the trigger information.

   Table 1 Trigger information

   Parameter	Description
   Trigger Type	Select Cloud Trace Service (CTS).
   Event Notification Name	Enter a notification name, for example, Test.
   Service Type	Select FunctionGraph. NOTE: If Service Type is set to a global cloud service, such as OBS or IAM, CTS triggers can be triggered only in CN-Hong Kong. For more information about global cloud services, contact technical support.
   Resource Type	Resource types supported by the selected service, such as triggers, instances, and functions.
   Trace Name	Operations that can be performed on the selected resource type, such as creating or deleting a trigger.

8. Click OK.

Configuring a CTS Event to Trigger the Function

1. Return to the FunctionGraph console. In the navigation pane, choose Functions > Function List.
2. Click the function to be configured to go to the function details page.
3. On the function details page, select a version, and click Test. The Configure Test Event dialog box is displayed.
4. Set the parameters described in Table 2 and click Save.

   Table 2 Test event information

   Parameter	Description
   Configure Test Event	You can choose to create a test event or edit an existing one. Use the default option Create new test event.
   Event Template	Select cts-event-template.
   Event Name	Enter an event name, for example, cts-test.
   Event data	The system automatically loads the event data in the CTS event template. You can modify the event data as required.

5. Click Test. The function test result is displayed.