Grafana Datasource Create

Overview

This role creates InfluxDB datasources in Grafana using the Grafana HTTP API. It authenticates with an API token, configures datasources with InfluxQL query language support, and implements idempotent creation that safely handles existing datasources without errors.

What This Role Does

1. Sends POST request to Grafana API (/api/datasources)
2. Authenticates with Bearer token (API key)
3. Configures datasource with parameters:
   • Type: influxdb
   • Access mode: proxy (requests proxied through Grafana backend)
   • URL: InfluxDB server address
   • Database name
   • Authentication credentials
   • Query language: InfluxQL
   • HTTP method: GET
4. Handles existing datasources gracefully (status 409 = already exists)
5. Repeats for each datasource in the list

Role Variables

Variable	Description
vault_grafana_ansibleuser_api_token	Grafana API token (from vault)
grafana_datasource_create_datasources	List of datasource configurations
grafana_datasource_create_host	Grafana server host:port
grafana_datasource_create_port	Grafana HTTP port
grafana_datasource_create_validate_certs	Validate SSL certificates

Datasource definition fields:

Field	Description
name	Display name in Grafana UI
uid	Unique identifier for dashboard references
url	InfluxDB HTTP API URL
database	InfluxDB database name
user	InfluxDB username
password	InfluxDB password (from vault)
is_default	Make this the default datasource

Notes

• Uses Bearer token authentication (not basic auth)
• Currently supports InfluxDB datasources with InfluxQL query language
• Run grafana_install and influxdb roles before this role