Cilium Health API

The cilium-health connectivity API served over a Unix domain socket, exposing node-to-node and endpoint connectivity health status across the Cilium cluster mesh.

OpenAPI Specification

isovalent-cilium-health-openapi.yml Raw ↑
---
swagger: '2.0'
info:
  title: Cilium-Health API
  description: Cilium Health Checker
  version: v1beta
x-schemes:
- unix
basePath: "/v1beta"
produces:
- application/json
consumes:
- application/json
paths:
  "/healthz":
    get:
      summary: Get health of Cilium node
      description: |
        Returns health and status information of the local node including
        load and uptime, as well as the status of related components including
        the Cilium daemon.
      responses:
        '200':
          description: Success
          schema:
            "$ref": "#/definitions/HealthResponse"
        '500':
          description: Failed to contact local Cilium daemon
          x-go-name: Failed
          schema:
            "$ref": "../openapi.yaml#/definitions/Error"
  "/status/probe":
    put:
      summary: Run synchronous connectivity probe to determine status of the Cilium cluster
      description: |
        Runs a synchronous probe to all other cilium-health instances and
        returns the connectivity status.
      tags:
      - connectivity
      responses:
        '200':
          description: Success
          schema:
            "$ref": "#/definitions/HealthStatusResponse"
        '403':
          description: Forbidden
        '500':
          description: Internal error occurred while conducting connectivity probe
          x-go-name: Failed
          schema:
            "$ref": "../openapi.yaml#/definitions/Error"
  "/status":
    get:
      summary: Get connectivity status of the Cilium cluster
      description: |
        Returns the connectivity status to all other cilium-health instances
        using interval-based probing.
      tags:
      - connectivity
      responses:
        '200':
          description: Success
          schema:
            "$ref": "#/definitions/HealthStatusResponse"
definitions:
  StatusResponse:
    type: object
    description: Status of Cilium daemon
    x-go-type:
      type: StatusResponse
      import:
        package: "github.com/cilium/cilium/api/v1/models"
        alias: "ciliumModels"
      hint:
        kind: object
        nullable: true
  HealthResponse:
    description: Health and status information of local node
    type: object
    properties:
      cilium:
        description: Status of Cilium daemon
        "$ref": "#/definitions/StatusResponse"
      uptime:
        description: Uptime of cilium-health instance
        type: string
      system-load:
        description: System load on node
        "$ref": "#/definitions/LoadResponse"
  LoadResponse:
    description: System load on node
    type: object
    properties:
      last1min:
        description: Load average over the past minute
        type: string
      last5min:
        description: Load average over the past 5 minutes
        type: string
      last15min:
        description: Load average over the past 15 minutes
        type: string
  HealthStatusResponse:
    description: Connectivity status to other daemons
    type: object
    properties:
      timestamp:
        type: string
      probeInterval:
        description: Interval in seconds between probes
        type: string
      local:
        description: Description of the local node
        "$ref": "#/definitions/SelfStatus"
      nodes:
        description: Connectivity status to each other node
        type: array
        items:
          "$ref": "#/definitions/NodeStatus"
  SelfStatus:
    description: Description of the cilium-health node
    type: object
    properties:
      name:
        description: Name associated with this node
        type: string
  NodeStatus:
    description: Connectivity status of a remote cilium-health instance
    type: object
    properties:
      name:
        description: Identifying name for the node
        type: string
      host:
        description: Connectivity status to cilium-health instance on node IP
        "$ref": "#/definitions/HostStatus"
      health-endpoint:
        description: Connectivity status to simulated endpoint on the node
        "$ref": "#/definitions/EndpointStatus"
      endpoint:
        description: |
          DEPRECATED: Please use the health-endpoint field instead, which
          supports reporting the status of different addresses for the endpoint
        "$ref": "#/definitions/PathStatus"
  HostStatus:
    description: |
      Connectivity status to host cilium-health instance via different paths,
      probing via all known IP addresses
    properties:
      primary-address:
        "$ref": "#/definitions/PathStatus"
      secondary-addresses:
        type: array
        items:
          "$ref": "#/definitions/PathStatus"
  EndpointStatus:
    description: |
      Connectivity status to host cilium-health endpoints via different paths
    properties:
      primary-address:
        "$ref": "#/definitions/PathStatus"
      secondary-addresses:
        type: array
        items:
          "$ref": "#/definitions/PathStatus"
  PathStatus:
    description: |
      Connectivity status via different paths, for example using different
      policies or service redirection
    type: object
    properties:
      ip:
        description: IP address queried for the connectivity status
        type: string
      icmp:
        description: Basic ping connectivity status to node IP
        "$ref": "#/definitions/ConnectivityStatus"
      http:
        description: Connectivity status without policy applied
        "$ref": "#/definitions/ConnectivityStatus"
  ConnectivityStatus:
    description: Connectivity status of a path
    type: object
    properties:
      latency:
        description: Round trip time to node in nanoseconds
        type: integer
      status:
        type: string
        description: Human readable status/error/warning message
      lastProbed:
        description: Timestamp of last probe completion
        type: string