openapi: 3.0.3
info:
  title: StatsD Admin Interface Configuration Health API
  version: 1.0.0
  description: OpenAPI projection of the StatsD admin/management interface. The native transport is a line-oriented plain-text protocol over TCP/8126 (default), not HTTP — but every supported command (`stats`, `counters`, `gauges`, `timers`, `delcounters`, `delgauges`, `deltimers`, `health [up|down]`, `config`, `quit`) is a self-contained request/response interaction with well-defined inputs and outputs and is therefore modeled here as a virtual `GET`/`POST` resource so that tools that consume OpenAPI (Spectral, MCP adapters, client generators) can reason about the surface.
  contact:
    name: StatsD Maintainers
    url: https://github.com/statsd/statsd
  license:
    name: MIT
    url: https://github.com/statsd/statsd/blob/master/LICENSE
servers:
- url: tcp://{host}:{port}
  description: Native admin TCP interface
  variables:
    host:
      default: 127.0.0.1
      description: Address of the StatsD daemon
    port:
      default: '8126'
      description: Default admin port (`mgmt_port`)
tags:
- name: Health
  description: Health Check Control
paths:
  /health:
    get:
      summary: Get Health Status
      description: Return the daemon's current health status as configured by `healthStatus`.
      operationId: getHealth
      tags:
      - Health
      responses:
        '200':
          description: Current Health Status.
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/HealthStatus'
    post:
      summary: Set Health Status
      description: Set the daemon's health status to `up` or `down`. Useful for draining load balancers ahead of a deployment.
      operationId: setHealth
      tags:
      - Health
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/HealthStatus'
      responses:
        '200':
          description: Updated Health Status.
          content:
            text/plain:
              schema:
                $ref: '#/components/schemas/HealthStatus'
components:
  schemas:
    HealthStatus:
      type: object
      description: Daemon health status as exposed to load balancers and external health probes.
      required:
      - status
      properties:
        status:
          type: string
          enum:
          - up
          - down
          example: up