Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.

Grafana Agent Cookbook Dynamic Configuration Datasources

02 Datasources

Datasources are a powerful concept in gomplate. They allow you to reach out to other files, systems and resources to pull data.

docker run -v ${PWD}/:/etc/grafana grafana/agentctl:latest template-parse file:///etc/grafana/02_config.yml

Config

The config.yml adds a new field sources. Sources can be any number of things defined in the gomplate datasources documentation. In this example using fruit.

template_paths:
  - "file:///etc/grafana/01_assets"
datasources:
  - name: fruit
    url: "file://etc/grafana/01_assets/fruit.json"

fruit.json

["mango","peach","orange"]

Usage

agent-1.yml

server:
  log_level: debug
metrics:
  wal_directory: /tmp/grafana-agent-normal
  global:
    scrape_interval: 60s
    remote_write:
      - url: https://prometheus-us-central1.grafana.net/api/prom/push
        basic_auth:
          username: xyz
          password: secretpassword
  configs:
    - name: default
  {{ range (datasource "fruit") }}
    - name: {{ . }}
  {{ end }}

A Datasource is reference by name and in this case it is an array and used exactly like the looping example.