Building a Program

This section describes how to download and use the program package (index.zip) for log alarms.

Creating a Function

Create a function for extracting logs and upload the sample code package, as shown in Figure 1. For details, see Function Management.

Figure 1 Creating a function

This function analyzes received operation records, filters logins or logouts from unauthorized IP addresses using a whitelist, and sends alarms under a specified SMN topic.

Setting Environment Variables

On the Configuration tab page of the function, set the environment variables and SMN topic name, as shown in Table 1.

**Table 1** Environment variable description
Environment Variable	Description
SMN_Topic	SMN topic name.
RegionName	Region.
IP	IP address whitelist.

For details about how to set environment variables, see Using Environment Variables, as shown in Figure 2.

Figure 2 Setting environment variables

Parent topic: Auditing and Analyzing Logins and Logouts with FunctionGraph

Previous topic: Preparation

Next topic: Adding an Event Source

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