azure-monitor-exporter

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About

azure-monitor-exporter is a Prometheus exporter for Azure Monitor. It collects metrics from Azure Monitor and exposes them in a format that Prometheus can scrape.

Features

• Collects metrics from Azure Monitor
• Using the Azure Monitor get:Batch REST API to reduce the number of requests
• fetch metrics from resources found with ServiceDiscovery via Azure ResourceGraph API based on Kusto query

Authentication

azure-monitor-exporter supports all authentication supported by Azure SDK for Go.

Service principal with a secret

Variable name	Value
AZURE_CLIENT_ID	Application ID of an Azure service principal
AZURE_TENANT_ID	ID of the application's Azure AD tenant
AZURE_CLIENT_SECRET	Password of the Azure service principal

Service principal with certificate

Variable name	Value
AZURE_CLIENT_ID	Application ID of an Azure service principal
AZURE_TENANT_ID	ID of the application's Azure AD tenant
AZURE_CLIENT_CERTIFICATE_PATH	Path to a certificate file including private key (without password protection)

Use a managed identity

Variable name	Value
AZURE_CLIENT_ID	User-assigned managed client id. Can be avoid, if a system assign identity is used
AZURE_TENANT_ID	ID of the application's Azure AD tenant

Use a workload identity

Refer to the workload identity documentation for more information.

Probe Configuration

HTTP endpoint: /probe

The probe configuration is done via the HTTP GET parameters. The following parameters are supported:

Parameter name	Format	Description	Default
resourceType	single string	resource type of resources to scrape	none (required value)
metricName	single string	metric names to scrape	none (required value)
query	single string	kusto query used against ResourceGraph to get target resources	Resources
subscriptionID	comma separated string or multiple values	SubscriptionIDs in scope	all accessible
aggregation	comma separated string or multiple values	Azure Monitor metric aggregation value (minimum, maximum, average, total, count, multiple possible separated with ,)	all available
interval	ISO 8601 time interval	Azure Monitor metric interval	none
timespan	ISO 8601 time interval	Azure Monitor metric timespan	1 hour
filter	single string	Azure Monitor metric filter	none

To identify the correct metricName, you can use the Azure documentation and search for Name in REST API.

Prometheus configuration examples

Redis

Click to expand

- job_name: azure-metrics-redis
  scrape_interval: 1m
  metrics_path: /probe
  params:
    resourceType:
    - Microsoft.Cache/Redis"
    metricName:
    - connectedclients
    - totalcommandsprocessed
    - cachehits
    - cachemisses
    - getcommands
    - setcommands
    - operationsPerSecond
    - evictedkeys
    - totalkeys
    - expiredkeys
    - usedmemory
    - usedmemorypercentage
    - usedmemoryRss
    - serverLoad
    - cacheWrite
    - cacheRead
    - percentProcessorTime
    - cacheLatency
    - errors
    interval: ["PT1M"]
    timespan: ["PT1M"]
    aggregation:
    - average
    - total
  static_configs:
  - targets: ["azure-metrics-exporter:8080"]