functions.md

Basic Guidance for Monitoring your Functions

This guide shows how you can use a simple email alert to monitor the status of your functions.

For more details, refer to the technical documentation.

Create a topic and a subscription for the Notification Service

1. From the OCI Console navigation menu, select Application Integration, and then select Notifications

2. Click Create Topic and create a topic with my_function_status name

3. Choose your topic, click Create Subscription and create a subscription with your email:

   • Protocol: Select Email
   • Email: Enter your email address

4. The subscription will be created in "Pending" status. You will receive a confirmation email and will need to click on the link in the email to confirm your email address.

Check Metrics and create an alarm definition from Metrics

1. From the navigation menu, select Developer Services, and then select Functions

2. Choose the application and the function that you want to monitor

3. From the Metrics page, go to the "Functions Errors" chart, click on Options and Create an Alarm on this Query

4. Add a name and under Notifications select Destination service as notification service, select the compartment your_compartment, and select Topic as my_function_status

Create an alarm definition from scratch

1. From the navigation menu, select Monitoring, and then select Alarm Definitions

2. Click Create Alarm and use the following example:

   • Alarm Name: my_function_status
   • Alarm severity: Critical
   • Alarm body: OCI Alarm: my function

3. On Metric description select the compartment your_compartment, select Metric namespace as oci_faas, Metric name as FunctionResponseCount, Interval as 1m, and Statistic as Mean

4. On Trigger rule select Value greater or equal than 1

5. On Notification select Destination service as notification service, select the compartment your_compartment, and select Topic as my_function_status