mlflow-operator: Dataflow

Controller Watches

Kubernetes resources this controller monitors for changes. Each watch triggers reconciliation when the watched resource is created, updated, or deleted.

Type	GVK	Source
For	api/v1/MLflow	internal/controller/mlflow_controller.go:408
Owns	/v1/PersistentVolumeClaim	internal/controller/mlflow_controller.go:414
Owns	/v1/Secret	internal/controller/mlflow_controller.go:411
Owns	/v1/Service	internal/controller/mlflow_controller.go:412
Owns	/v1/ServiceAccount	internal/controller/mlflow_controller.go:413
Owns	apis/v1/HTTPRoute	internal/controller/mlflow_controller.go:443
Owns	apps/v1/Deployment	internal/controller/mlflow_controller.go:409
Owns	batch/v1/CronJob	internal/controller/mlflow_controller.go:410
Owns	console/v1/ConsoleLink	internal/controller/mlflow_controller.go:435
Owns	monitoring/v1/ServiceMonitor	internal/controller/mlflow_controller.go:451
Owns	rbac.authorization.k8s.io/v1/ClusterRoleBinding	internal/controller/mlflow_controller.go:420
Watches	rbac.authorization.k8s.io/v1/ClusterRole	internal/controller/mlflow_controller.go:419

Reconciliation Flow

How the controller interacts with the Kubernetes API during reconciliation.

sequenceDiagram
    %% Static dataflow for mlflow-operator

    participant KubernetesAPI as Kubernetes API
    participant controller_manager as controller-manager
    participant mlflow_operator_controller_manager as mlflow-operator-controller-manager
    participant postgres_deployment as postgres-deployment

    KubernetesAPI->>+controller_manager: Watch MLflow (reconcile)
    controller_manager->>KubernetesAPI: Create/Update PersistentVolumeClaim
    controller_manager->>KubernetesAPI: Create/Update Secret
    controller_manager->>KubernetesAPI: Create/Update Service
    controller_manager->>KubernetesAPI: Create/Update ServiceAccount
    controller_manager->>KubernetesAPI: Create/Update HTTPRoute
    controller_manager->>KubernetesAPI: Create/Update Deployment
    controller_manager->>KubernetesAPI: Create/Update CronJob
    controller_manager->>KubernetesAPI: Create/Update ConsoleLink
    controller_manager->>KubernetesAPI: Create/Update ServiceMonitor
    controller_manager->>KubernetesAPI: Create/Update ClusterRoleBinding
    KubernetesAPI-->>+controller_manager: Watch ClusterRole (informer)

    Note over controller_manager: Exposed Services
    Note right of controller_manager: minio-service:9000/TCP [https]
    Note right of controller_manager: postgres-service:5432/TCP []

    Note over KubernetesAPI: Defined CRDs
    Note right of KubernetesAPI: MLflowConfig (mlflow.kubeflow.org/v1)
    Note right of KubernetesAPI: MLflow (mlflow.opendatahub.io/v1)

Configuration

ConfigMaps and Helm values that control this component's runtime behavior.

Helm

Chart: mlflow v0.1.0