Canonical

MicroCeph REST API

MicroCeph is Canonical's opinionated, snap-delivered Ceph distribution. It publishes a small OpenAPI 3.1.0 contract for its cluster REST surface. Recorded here because it is a real published first-party contract, but it is thin — one path and two operations — and most MicroCeph operation is through the CLI.

Documentation GitHub OpenAPI

Operations 2

PUT /1.0/microceph/config/log-level Set log level for MicroCeph #

GET /1.0/microceph/config/log-level Get log level for MicroCeph #

Specifications

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OpenAPI

https://raw.githubusercontent.com/api-evangelist/canonical/refs/heads/main/openapi/canonical-microceph-api-openapi.yml

Other Resources

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Overlay

https://raw.githubusercontent.com/api-evangelist/canonical/refs/heads/main/overlays/canonical-microceph-api-overlay.yaml

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SourceCode

https://github.com/canonical/microceph

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OpenAPI Specification

openapi: 3.2.0
info:
  version: '1.0'
  title: REST Microceph API
tags:
- name: Microceph
paths:
  /1.0/microceph/config/log-level:
    put:
      summary: Set log level for MicroCeph
      description: Allows the client to configure the logging levels for the MicroCeph daemon.
      operationId: setLogLevel
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/Level'
      responses:
        '200':
          description: Successfully set log-level
        default:
          description: Default error response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Response'
      tags:
      - Microceph
    get:
      summary: Get log level for MicroCeph
      description: Fetches the current logging level of the MicroCeph daemon.
      operationId: getLogLevel
      responses:
        '200':
          description: Successfully fetched log-level
          content:
            application/json:
              schema:
                type: object
                properties:
                  metadata:
                    type: integer
                    description: Numerical value of the log-level
                    $ref: '#/components/schemas/Level'
                    example: 4
        default:
          description: Default error response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Response'
      tags:
      - Microceph
components:
  schemas:
    Level:
      type: string
      oneOf:
      - title: PANIC
        const: 0
      - title: FATAL
        const: 1
      - title: ERROR
        const: 2
      - title: WARNING
        const: 3
      - title: INFO
        const: 4
      - title: DEBUG
        const: 5
      - title: TRACE
        const: 6
    Response:
      type: object
      properties:
        type:
          type: string
          description: Type of response
          examples:
          - sync
          - error
        status:
          type: string
          description: Status of operation.
          examples:
          - Success
          - Error
        status_code:
          type: integer
          description: Success HTTP status code, 0 for errors.
          examples:
          - 200
          - 0
        operation:
          type: string
          description: Operation name.
        error_code:
          type: string
          description: Error HTTP status code, 0 for success.
        error:
          type: string
          description: Description of error.
          example: 'Failed to run: ceph config get test_key: exit status 22'
        metadata:
          oneOf:
          - type: object
          - type: 'null'
          description: Response payload, could be null, or a valid json object.