Amazon Fault Injection Simulator
Amazon Fault Injection Simulator Experiment Templates API

Create and manage fault injection experiment templates
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OpenAPI Specification

openapi: 3.1.0
info:
  title: AWS Fault Injection Simulator Actions Experiment Templates API
  description: AWS Fault Injection Simulator (FIS) is a fully managed service for running fault injection experiments on AWS. This API enables creating experiment templates, starting and stopping experiments, managing safety levers, and configuring multi-account targets for chaos engineering.
  version: '2020-12-01'
  contact:
    name: Amazon Web Services
    url: https://aws.amazon.com/contact-us/
  termsOfService: https://aws.amazon.com/service-terms/
  x-generated-from: documentation
  x-last-validated: '2026-04-19'
servers:
- url: https://fis.{region}.amazonaws.com
  description: AWS FIS Regional Endpoint
  variables:
    region:
      default: us-east-1
      description: AWS Region
security:
- aws_signature_v4: []
tags:
- name: Experiment Templates
  description: Create and manage fault injection experiment templates
paths:
  /experimentTemplates:
    post:
      operationId: createExperimentTemplate
      summary: AWS Fault Injection Simulator Create Experiment Template
      description: Creates an experiment template defining targets, actions, and stop conditions for fault injection experiments.
      tags:
      - Experiment Templates
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CreateExperimentTemplateRequest'
            examples:
              CreateExperimentTemplateRequestExample:
                summary: Default createExperimentTemplate request
                x-microcks-default: true
                value:
                  clientToken: token-abc123
                  description: Test EC2 instance failure
                  stopConditions:
                  - source: aws:cloudwatch:alarm
                    value: arn:aws:cloudwatch:us-east-1:123456789012:alarm/my-alarm
                  targets:
                    myTargets:
                      resourceType: aws:ec2:instance
                      resourceTags:
                        Environment: test
                      selectionMode: ALL
                  actions:
                    stopInstances:
                      actionId: aws:ec2:stop-instances
                      targets:
                        Instances: myTargets
      responses:
        '200':
          description: Template created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExperimentTemplateResponse'
              examples:
                CreateExperimentTemplate200Example:
                  summary: Default response
                  x-microcks-default: true
                  value:
                    experimentTemplate:
                      id: EXT123
                      description: Test EC2 instance failure
                      status:
                        status: active
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '409':
          description: Conflict
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    get:
      operationId: listExperimentTemplates
      summary: AWS Fault Injection Simulator List Experiment Templates
      description: Lists your experiment templates.
      tags:
      - Experiment Templates
      parameters:
      - name: maxResults
        in: query
        description: Maximum results
        schema:
          type: integer
        example: 20
      - name: nextToken
        in: query
        description: Pagination token
        schema:
          type: string
      responses:
        '200':
          description: List of templates
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListExperimentTemplatesResponse'
              examples:
                ListExperimentTemplates200Example:
                  summary: Default response
                  x-microcks-default: true
                  value:
                    experimentTemplates:
                    - id: EXT123
                      description: Test EC2 failure
                      creationTime: '2026-04-19T12:00:00Z'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
  /experimentTemplates/{id}:
    get:
      operationId: getExperimentTemplate
      summary: AWS Fault Injection Simulator Get Experiment Template
      description: Gets information about the specified experiment template.
      tags:
      - Experiment Templates
      parameters:
      - name: id
        in: path
        required: true
        description: Experiment template ID
        schema:
          type: string
        example: EXT123
      responses:
        '200':
          description: Template details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExperimentTemplateResponse'
              examples:
                GetExperimentTemplate200Example:
                  summary: Default response
                  x-microcks-default: true
                  value:
                    experimentTemplate:
                      id: EXT123
                      description: Test EC2 failure
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    patch:
      operationId: updateExperimentTemplate
      summary: AWS Fault Injection Simulator Update Experiment Template
      description: Updates the specified experiment template.
      tags:
      - Experiment Templates
      parameters:
      - name: id
        in: path
        required: true
        description: Template ID
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/UpdateExperimentTemplateRequest'
            examples:
              UpdateExperimentTemplateRequestExample:
                summary: Default request
                x-microcks-default: true
                value:
                  description: Updated description
      responses:
        '200':
          description: Template updated
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExperimentTemplateResponse'
              examples:
                UpdateExperimentTemplate200Example:
                  summary: Default response
                  x-microcks-default: true
                  value:
                    experimentTemplate:
                      id: EXT123
                      description: Updated description
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
    delete:
      operationId: deleteExperimentTemplate
      summary: AWS Fault Injection Simulator Delete Experiment Template
      description: Deletes the specified experiment template.
      tags:
      - Experiment Templates
      parameters:
      - name: id
        in: path
        required: true
        description: Template ID
        schema:
          type: string
      responses:
        '200':
          description: Template deleted
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ExperimentTemplateResponse'
              examples:
                DeleteExperimentTemplate200Example:
                  summary: Default response
                  x-microcks-default: true
                  value:
                    experimentTemplate:
                      id: EXT123
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '500':
          description: Server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
      x-microcks-operation:
        delay: 0
        dispatcher: FALLBACK
components:
  schemas:
    ExperimentTemplateAction:
      type: object
      description: Action definition in an experiment template
      properties:
        actionId:
          type: string
          description: FIS action ID
          example: aws:ec2:stop-instances
        description:
          type: string
          description: Action description
        parameters:
          type: object
          description: Action parameters
          additionalProperties:
            type: string
        targets:
          type: object
          description: Target mappings
          additionalProperties:
            type: string
        startAfter:
          type: array
          description: Actions that must complete first
          items:
            type: string
    ExperimentTemplateTarget:
      type: object
      description: Target definition in an experiment template
      properties:
        resourceType:
          type: string
          description: AWS resource type
          example: aws:ec2:instance
        resourceArns:
          type: array
          description: Specific resource ARNs
          items:
            type: string
        resourceTags:
          type: object
          description: Tags to filter resources
          additionalProperties:
            type: string
        filters:
          type: array
          description: Resource filters
          items:
            type: object
        selectionMode:
          type: string
          description: Selection mode
          example: ALL
          enum:
          - ALL
          - COUNT(n)
          - PERCENT(n)
    CreateExperimentTemplateRequest:
      type: object
      required:
      - clientToken
      - stopConditions
      - targets
      - actions
      - roleArn
      description: Request body for CreateExperimentTemplate
      properties:
        clientToken:
          type: string
          description: Idempotency token
          example: token-abc123
        description:
          type: string
          description: Template description
        stopConditions:
          type: array
          description: Stop conditions
          items:
            $ref: '#/components/schemas/ExperimentTemplateStopCondition'
        targets:
          type: object
          description: Targets
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateTarget'
        actions:
          type: object
          description: Actions
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateAction'
        roleArn:
          type: string
          description: IAM role ARN
        tags:
          type: object
          description: Tags
          additionalProperties:
            type: string
    ExperimentTemplate:
      type: object
      description: An experiment template defining fault injection targets, actions, and stop conditions
      properties:
        id:
          type: string
          description: Template ID
          example: EXT123
        arn:
          type: string
          description: Template ARN
          example: arn:aws:fis:us-east-1:123456789012:experiment-template/EXT123
        description:
          type: string
          description: Template description
          example: Test EC2 instance failure
        targets:
          type: object
          description: Target definitions
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateTarget'
        actions:
          type: object
          description: Action definitions
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateAction'
        stopConditions:
          type: array
          description: Stop conditions
          items:
            $ref: '#/components/schemas/ExperimentTemplateStopCondition'
        creationTime:
          type: string
          format: date-time
          description: Template creation time
          example: '2026-04-19T12:00:00Z'
        lastUpdateTime:
          type: string
          format: date-time
          description: Last update time
        roleArn:
          type: string
          description: IAM role ARN for experiment execution
        tags:
          type: object
          description: Resource tags
          additionalProperties:
            type: string
    UpdateExperimentTemplateRequest:
      type: object
      description: Request body for UpdateExperimentTemplate
      properties:
        description:
          type: string
          description: Updated description
        stopConditions:
          type: array
          description: Updated stop conditions
          items:
            $ref: '#/components/schemas/ExperimentTemplateStopCondition'
        targets:
          type: object
          description: Updated targets
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateTarget'
        actions:
          type: object
          description: Updated actions
          additionalProperties:
            $ref: '#/components/schemas/ExperimentTemplateAction'
        roleArn:
          type: string
          description: Updated IAM role ARN
    ErrorResponse:
      type: object
      description: Error response from the FIS API
      properties:
        message:
          type: string
          description: Error message
          example: The specified resource does not exist.
    ExperimentTemplateResponse:
      type: object
      description: Response containing experiment template
      properties:
        experimentTemplate:
          $ref: '#/components/schemas/ExperimentTemplate'
    ExperimentTemplateStopCondition:
      type: object
      description: Stop condition for an experiment
      properties:
        source:
          type: string
          description: Stop condition source
          example: aws:cloudwatch:alarm
        value:
          type: string
          description: CloudWatch alarm ARN or none
          example: arn:aws:cloudwatch:us-east-1:123456789012:alarm/my-alarm
    ListExperimentTemplatesResponse:
      type: object
      description: List of experiment templates
      properties:
        experimentTemplates:
          type: array
          items:
            $ref: '#/components/schemas/ExperimentTemplate'
        nextToken:
          type: string
          description: Pagination token
  securitySchemes:
    aws_signature_v4:
      type: apiKey
      in: header
      name: Authorization
      description: AWS Signature Version 4 authentication
externalDocs:
  description: AWS FIS API Reference
  url: https://docs.aws.amazon.com/fis/latest/APIReference/Welcome.html
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