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Asset Properties

By exposing asset properties directly to your expressions, InfraSonar empowers you to achieve more granular control over your alerts; this enables precise asset-based filtering and exclusions according to criteria such as environment or team, alongside the ability to enhance alert messages with valuable, custom details.

Asset properties are accessed via their defined type, followed by their key:

  • asset.string.<key>: Accesses a single string property.
  • asset.strings.<key>: Accesses a list of strings property.
  • asset.number.<key>: Accesses a single numeric value (integer or float) property.
  • asset.numbers.<key>: Accesses a list of numeric values property.
  • asset.boolean.<key>: Accesses a single boolean property (true or false).

Null properties

If an asset property does not exist, or if it explicitly holds a null value, attempting to access it will result in null. There is no functional difference in expression evaluation between a non-existent property and one explicitly set to null.

Example 1: Using an Asset Property for Exclusion

This example demonstrates how to prevent alerts for items whose names are present in an exclusion_list strings property defined on the asset.

// Return to suppress the alert if a property `exclusion_list`
// exists and `item.name` is part of the list of strings.
case item.name in asset.strings.exclusion_list?:
    return
// Continue with expression...

Example 2: Including Asset Properties in an Alert Message

This example shows how to embed an asset's location property directly into an alert message, providing immediate context. 

var.asset_location = asset.string.location? ?? "Unknown Location"

case true:
    return DEBUG, "Location: @var.asset_location"