Otel metric

[fujiwara]

OpenTelemetry metrics endpoint support

destination.otel.enabled: true in configuration enables to post metrics to OpenTelemetry metrics endpoint.

destination:
  mackerel:
    enabled: false # disable mackerel host/service metrics
  otel:
    enabled: true
    endpoint: localhost:4317
    insecure: true

Extra attributes can be added to metrics by attributes in probe configuration.

By default, maprobe adds service.name and host.id attributes to metrics.

probes:
  - service: production
    role: redis
    command:
      command:
        - "mackerel-plugin-redis"
        - "-host={{ .Host.IPAddress.eth0 }}"
        - "-tempfile=/tmp/redis-{{ .Host.ID }}"
    attributes: # extra attributes
      - service.namespace: redis
      - host.name: "{{ .Host.Name }}"