otelcol-custom

README

README

This repo creates a custom OpenTelemetry Collector with Stackdriver Exporter.

It followed the tutorial here.

To build and run this project:

1. Ensure you have a GCP project, create a service account, and grant it sufficient permissions to write to Cloud monitoring.

2. Download a service account key and set your environment variable:

export GOOGLE_SERVICE_CREDENTIALS=<path-to-your-sa>

1. Change the exporters.stackdriver.project field to your GCP project id in config.yaml

2. Start node-exporter locally so we can have some metrics avaiable:

docker run -p 9100:9100 --name node-exporter-${RANDOM} bitnami/node-exporter:latest
# you can test the metrics endpoint as well
curl -s http://localhost:9100/metrics | head

1. Start the collector

go run . --config config.yaml

1. Go to the Metrics explorer and search for some metrics from node-Exporter, e.g. node_cpu_seconds_total.