Relationships Between FunctionGraph and Other Services

Table 1 describes the cloud services that have been interconnected with FunctionGraph.

**Table 1** Interconnected services
Service	Function
SMN	FunctionGraph functions are constructed to process SMN notifications.
OBS	FunctionGraph functions are created to process OBS bucket events, such as object creation or deletion events. For example, when an image is uploaded to the specified bucket, OBS invokes the function to read the image and create a thumbnail.
LTS	FunctionGraph functions are built to process logs subscribed to in LTS. When LTS collects subscribed logs, the function is triggered to process or analyze the logs or to load the logs to other systems.
Cloud Eye	FunctionGraph is interconnected with Cloud Eye to report monitoring metrics, allowing you to view function metrics and alarm messages through Cloud Eye.
VPC	Functions can be configured to access resources in Virtual Private Clouds (VPCs) or to access the Internet through source network address translation (SNAT) by binding elastic IP addresses.