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OpenAPI Specification

openapi: 3.1.0
info:
  title: smolfleet apikeys Sandboxes API
  description: Control plane for smolvm — deploy and run machines across a cluster.
  license:
    name: Apache-2.0
  version: 0.1.0
servers:
- url: https://api.smolmachines.com
  description: Hosted smolfleet
tags:
- name: Sandboxes
  description: Sandbox lifecycle management
paths:
  /api/v1/sandboxes:
    get:
      tags:
      - Sandboxes
      summary: List all sandboxes.
      operationId: list_sandboxes
      responses:
        '200':
          description: List of sandboxes
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListSandboxesResponse'
    post:
      tags:
      - Sandboxes
      summary: Create a new sandbox.
      operationId: create_sandbox
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateSandboxRequest'
        required: true
      responses:
        '200':
          description: Sandbox created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxInfo'
        '400':
          description: Invalid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '409':
          description: Sandbox already exists
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
  /api/v1/sandboxes/{id}:
    get:
      tags:
      - Sandboxes
      summary: Get sandbox status.
      operationId: get_sandbox
      parameters:
      - name: id
        in: path
        description: Sandbox name
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Sandbox details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxInfo'
        '404':
          description: Sandbox not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
    delete:
      tags:
      - Sandboxes
      summary: Delete a sandbox.
      operationId: delete_sandbox
      parameters:
      - name: id
        in: path
        description: Sandbox name
        required: true
        schema:
          type: string
      - name: force
        in: query
        description: Force delete even if VM is still running
        required: false
        schema:
          type: boolean
      responses:
        '200':
          description: Sandbox deleted
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeleteResponse'
        '404':
          description: Sandbox not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '409':
          description: VM still running, use force=true
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
  /api/v1/sandboxes/{id}/start:
    post:
      tags:
      - Sandboxes
      summary: Start a sandbox.
      operationId: start_sandbox
      parameters:
      - name: id
        in: path
        description: Sandbox name
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Sandbox started
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxInfo'
        '404':
          description: Sandbox not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '500':
          description: Failed to start
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
  /api/v1/sandboxes/{id}/stop:
    post:
      tags:
      - Sandboxes
      summary: Stop a sandbox.
      operationId: stop_sandbox
      parameters:
      - name: id
        in: path
        description: Sandbox name
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Sandbox stopped
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SandboxInfo'
        '404':
          description: Sandbox not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
        '500':
          description: Failed to stop
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiErrorResponse'
components:
  schemas:
    ApiErrorResponse:
      type: object
      description: API error response.
      required:
      - error
      - code
      properties:
        code:
          type: string
          description: Error code.
          example: NOT_FOUND
        error:
          type: string
          description: Error message.
          example: sandbox 'test' not found
    CreateSandboxRequest:
      type: object
      description: Request to create a new sandbox.
      required:
      - name
      properties:
        mounts:
          type: array
          items:
            $ref: '#/components/schemas/MountSpec'
          description: Host mounts to attach.
        name:
          type: string
          description: Unique name for the sandbox.
          example: my-sandbox
        ports:
          type: array
          items:
            $ref: '#/components/schemas/PortSpec'
          description: Port mappings (host:guest).
        resources:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/ResourceSpec'
            description: VM resource configuration.
        restart:
          oneOf:
          - type: 'null'
          - $ref: '#/components/schemas/RestartSpec'
            description: Restart policy configuration.
    DeleteResponse:
      type: object
      description: Generic delete response.
      required:
      - deleted
      properties:
        deleted:
          type: string
          description: Name of deleted resource.
          example: my-sandbox
    SandboxInfo:
      type: object
      description: Sandbox status information.
      required:
      - name
      - state
      - mounts
      - ports
      - resources
      - network
      properties:
        mounts:
          type: array
          items:
            $ref: '#/components/schemas/MountInfo'
          description: Configured mounts (with virtiofs tags for use in container mounts).
        name:
          type: string
          description: Sandbox name.
          example: my-sandbox
        network:
          type: boolean
          description: Whether outbound network access is enabled.
        pid:
          type:
          - integer
          - 'null'
          format: int32
          description: Process ID (if running).
          example: 12345
        ports:
          type: array
          items:
            $ref: '#/components/schemas/PortSpec'
          description: Configured ports.
        resources:
          $ref: '#/components/schemas/ResourceSpec'
          description: VM resources.
        restartCount:
          type:
          - integer
          - 'null'
          format: int32
          description: Number of times this sandbox has been automatically restarted.
          minimum: 0
        state:
          type: string
          description: Current state.
          example: running
    PortSpec:
      type: object
      description: Port mapping specification.
      required:
      - host
      - guest
      properties:
        guest:
          type: integer
          format: int32
          description: Port inside the sandbox.
          example: 80
          minimum: 0
        host:
          type: integer
          format: int32
          description: Port on the host.
          example: 8080
          minimum: 0
    MountInfo:
      type: object
      description: Mount information (for responses, includes virtiofs tag).
      required:
      - tag
      - source
      - target
      - readonly
      properties:
        readonly:
          type: boolean
          description: Read-only mount.
        source:
          type: string
          description: Host path.
          example: /Users/me/code
        tag:
          type: string
          description: Virtiofs tag (e.g., "smolvm0"). Use this in container mounts.
          example: smolvm0
        target:
          type: string
          description: Path inside the sandbox.
          example: /workspace
    ListSandboxesResponse:
      type: object
      description: List sandboxes response.
      required:
      - sandboxes
      properties:
        sandboxes:
          type: array
          items:
            $ref: '#/components/schemas/SandboxInfo'
          description: List of sandboxes.
    RestartSpec:
      type: object
      description: Restart policy specification for sandbox creation.
      properties:
        maxRetries:
          type:
          - integer
          - 'null'
          format: int32
          description: Maximum restart attempts (0 = unlimited).
          minimum: 0
        policy:
          type:
          - string
          - 'null'
          description: 'Restart policy: "never", "always", "on-failure", "unless-stopped".'
    MountSpec:
      type: object
      description: Mount specification (for requests).
      required:
      - source
      - target
      properties:
        readonly:
          type: boolean
          description: Read-only mount.
        source:
          type: string
          description: Host path to mount.
          example: /Users/me/code
        target:
          type: string
          description: Path inside the sandbox.
          example: /workspace
    ResourceSpec:
      type: object
      description: VM resource specification.
      properties:
        cpus:
          type:
          - integer
          - 'null'
          format: int32
          description: Number of vCPUs.
          example: 2
          minimum: 0
        memoryMb:
          type:
          - integer
          - 'null'
          format: int32
          description: Memory in MiB.
          example: 1024
          minimum: 0
        network:
          type:
          - boolean
          - 'null'
          description: 'Enable outbound network access (TSI).

            Note: Only TCP/UDP supported, not ICMP (ping).'
        overlayGb:
          type:
          - integer
          - 'null'
          format: int64
          description: 'Overlay disk size in GiB (default: 2).'
          example: 2
          minimum: 0
        storageGb:
          type:
          - integer
          - 'null'
          format: int64
          description: 'Storage disk size in GiB (default: 20).'
          example: 20
          minimum: 0