Telegraf provides integration to monitoring many technologies through a large number of Telegraf input plugins. From there Telegraf can process the metrics and send them to Cloud Observability using the OpenTelemetry output plugin.
To complete the integration, you will:
In the Telegraf configuration file, add the configuration for any of the Telegraf input plugins. You can learn more about configuring Telegraf from the official documentation.
This example illustrates the process by configuring the Directory Monitor plugin. It ingests files in the configured directory and moves them to the
finished_directory after processing. By default it expects the InfluxDB line protocol format. But it can be configured to work with more than a dozen other data formats, including OpenTelemetry.
1 2 3 [[inputs.directory_monitor]] directory = "/telegraf/in" finished_directory = "/telegraf/done"
The Telegraf repository provides additional documentation for all plugins in their respective directories.
To deliver metrics to Cloud Observability you configure the Telegraf OpenTelmetry output plugin. This plugin sends metrics to Cloud Observability using gRPC.
This example shows the plugin configured without TLS:
1 2 3 4 5 6 7 [[outputs.opentelemetry]] service_address = "ingest.lightstep.com:443" insecure_skip_verify = true # Additional gRPC request metadata [outputs.opentelemetry.headers] lightstep-access-token = "$LS_ACCESS_TOKEN"
For more details regarding configuring the OpenTelemetry output plugin see the official Telegraf documentation.
You can validate that metrics are reporting to Cloud Observability on the Metrics details page in Project settings.
In Cloud Observability, click Project settings > Metric details.
Search for Telegraf metric names.
If needed, select the metric to edit the description and how the units are displayed in Cloud Observability.
After you have Cloud Observability ingesting metrics from Telegraf, you can use the Cloud Observability Terraform Provider to create a dashboard for the metrics.
For a complete example that’s ready to run, see Telegraf examples in the Cloud Observability OpenTelemetry Examples.
Updated Dec 1, 2022