openapi: 3.0.3
info:
  title: HashiCorp Consul Connect API
  description: >-
    HTTP API for the Consul Connect service mesh subsystem of HashiCorp
    Consul. Connect APIs cover intentions (service-to-service traffic
    authorization) and certificate authority (CA) management for the
    built-in mesh CA. ACL tokens are typically passed via the X-Consul-Token
    header.
  version: '1.0.0'
  contact:
    name: HashiCorp Consul
    url: https://developer.hashicorp.com/consul
servers:
  - url: http://localhost:8500/v1
    description: Local Consul agent
  - url: https://consul.example.com/v1
    description: Production Consul cluster
tags:
  - name: Intentions
    description: Service-to-service traffic authorization
  - name: CA
    description: Certificate authority management
security:
  - ConsulToken: []
paths:
  /connect/intentions:
    get:
      operationId: listIntentions
      summary: List all intentions
      tags: [Intentions]
      parameters:
        - $ref: '#/components/parameters/Namespace'
        - $ref: '#/components/parameters/Partition'
        - name: filter
          in: query
          description: Filter expression for intentions
          schema:
            type: string
      responses:
        '200':
          description: A list of intentions
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Intention'
  /connect/intentions/exact:
    get:
      operationId: readIntentionByExact
      summary: Read intention by source and destination
      tags: [Intentions]
      parameters:
        - name: source
          in: query
          required: true
          schema:
            type: string
        - name: destination
          in: query
          required: true
          schema:
            type: string
        - $ref: '#/components/parameters/Namespace'
        - $ref: '#/components/parameters/Partition'
      responses:
        '200':
          description: Matching intention
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Intention'
    put:
      operationId: upsertIntentionByExact
      summary: Create or replace intention by source and destination
      tags: [Intentions]
      parameters:
        - name: source
          in: query
          required: true
          schema:
            type: string
        - name: destination
          in: query
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/IntentionInput'
      responses:
        '200':
          description: Intention upserted
    delete:
      operationId: deleteIntentionByExact
      summary: Delete intention by source and destination
      tags: [Intentions]
      parameters:
        - name: source
          in: query
          required: true
          schema:
            type: string
        - name: destination
          in: query
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Intention deleted
  /connect/intentions/check:
    get:
      operationId: checkIntention
      summary: Check if a connection would be authorized
      tags: [Intentions]
      parameters:
        - name: source
          in: query
          required: true
          schema:
            type: string
        - name: destination
          in: query
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Authorization decision
          content:
            application/json:
              schema:
                type: object
                properties:
                  Allowed:
                    type: boolean
  /connect/intentions/match:
    get:
      operationId: matchIntentions
      summary: List intentions matching a source or destination
      tags: [Intentions]
      parameters:
        - name: by
          in: query
          required: true
          schema:
            type: string
            enum:
              - source
              - destination
        - name: name
          in: query
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Matching intentions
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: array
                  items:
                    $ref: '#/components/schemas/Intention'
  /connect/ca/roots:
    get:
      operationId: listCaRoots
      summary: List CA root certificates
      tags: [CA]
      parameters:
        - name: pem
          in: query
          schema:
            type: boolean
      responses:
        '200':
          description: Active root ID and root certificates
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CaRoots'
  /connect/ca/configuration:
    get:
      operationId: getCaConfiguration
      summary: Get CA configuration
      tags: [CA]
      responses:
        '200':
          description: Current CA configuration
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CaConfiguration'
    put:
      operationId: updateCaConfiguration
      summary: Update CA configuration
      tags: [CA]
      parameters:
        - name: ForceWithoutCrossSigning
          in: query
          schema:
            type: boolean
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CaConfiguration'
      responses:
        '200':
          description: Configuration updated
components:
  securitySchemes:
    ConsulToken:
      type: apiKey
      in: header
      name: X-Consul-Token
  parameters:
    Namespace:
      name: ns
      in: query
      description: Namespace (Consul Enterprise)
      schema:
        type: string
    Partition:
      name: partition
      in: query
      description: Admin partition (Consul Enterprise)
      schema:
        type: string
  schemas:
    Intention:
      type: object
      properties:
        ID:
          type: string
        SourceName:
          type: string
        DestinationName:
          type: string
        SourceNS:
          type: string
        DestinationNS:
          type: string
        Action:
          type: string
          enum: [allow, deny]
        Description:
          type: string
        Precedence:
          type: integer
        Meta:
          type: object
          additionalProperties:
            type: string
        CreateIndex:
          type: integer
        ModifyIndex:
          type: integer
    IntentionInput:
      type: object
      properties:
        Action:
          type: string
          enum: [allow, deny]
        Description:
          type: string
        Meta:
          type: object
          additionalProperties:
            type: string
    CaRoots:
      type: object
      properties:
        ActiveRootID:
          type: string
        TrustDomain:
          type: string
        Roots:
          type: array
          items:
            $ref: '#/components/schemas/CaRoot'
    CaRoot:
      type: object
      properties:
        ID:
          type: string
        Name:
          type: string
        SerialNumber:
          type: integer
        SigningKeyID:
          type: string
        ExternalTrustDomain:
          type: string
        NotBefore:
          type: string
          format: date-time
        NotAfter:
          type: string
          format: date-time
        RootCert:
          type: string
        IntermediateCerts:
          type: array
          items:
            type: string
        Active:
          type: boolean
        PrivateKeyType:
          type: string
        PrivateKeyBits:
          type: integer
    CaConfiguration:
      type: object
      properties:
        Provider:
          type: string
          example: consul
        Config:
          type: object
          additionalProperties: true
        State:
          type: object
          additionalProperties: true
        ForceWithoutCrossSigning:
          type: boolean
        ModifyIndex:
          type: integer