dataset.go

/*

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package goosefs

import (
	"context"
	"reflect"

	"k8s.io/apimachinery/pkg/types"

	datav1alpha1 "github.com/fluid-cloudnative/fluid/api/v1alpha1"
	"github.com/fluid-cloudnative/fluid/pkg/common"
	"github.com/fluid-cloudnative/fluid/pkg/utils"

	corev1 "k8s.io/api/core/v1"
	"k8s.io/client-go/util/retry"
)

// UpdateCacheOfDataset updates the CacheStates and Runtimes of the dataset.
func (e *GooseFSEngine) UpdateCacheOfDataset() (err error) {
	// 1. update the runtime status
	runtime, err := e.getRuntime()
	if err != nil {
		return err
	}

	// 2.update the dataset status
	err = retry.RetryOnConflict(retry.DefaultBackoff, func() error {
		dataset, err := utils.GetDataset(e.Client, e.name, e.namespace)
		if err != nil {
			return err
		}
		datasetToUpdate := dataset.DeepCopy()

		datasetToUpdate.Status.CacheStates = runtime.Status.CacheStates
		// datasetToUpdate.Status.CacheStates =

		if len(datasetToUpdate.Status.Runtimes) == 0 {
			datasetToUpdate.Status.Runtimes = []datav1alpha1.Runtime{}
		}

		datasetToUpdate.Status.Runtimes = utils.AddRuntimesIfNotExist(datasetToUpdate.Status.Runtimes, utils.NewRuntime(e.name,
			e.namespace,
			common.AccelerateCategory,
			common.GooseFSRuntime,
			e.runtime.Spec.Master.Replicas))

		e.Log.Info("the dataset status", "status", datasetToUpdate.Status)

		if !reflect.DeepEqual(dataset.Status, datasetToUpdate.Status) {
			err = e.Client.Status().Update(context.TODO(), datasetToUpdate)
			if err != nil {
				e.Log.Error(err, "Update dataset")
				return err
			}
		} else {
			e.Log.Info("No need to update the cache of the data")
		}

		return nil
	})

	if err != nil {
		e.Log.Error(err, "Update dataset")
		return err
	}

	return

}

// UpdateDatasetStatus updates the status of the dataset
func (e *GooseFSEngine) UpdateDatasetStatus(phase datav1alpha1.DatasetPhase) (err error) {
	err = retry.RetryOnConflict(retry.DefaultBackoff, func() error {
		dataset, err := utils.GetDataset(e.Client, e.name, e.namespace)
		if err != nil {
			return err
		}
		datasetToUpdate := dataset.DeepCopy()
		var cond datav1alpha1.DatasetCondition

		if phase != dataset.Status.Phase {
			switch phase {
			case datav1alpha1.BoundDatasetPhase:
				if len(datasetToUpdate.Status.Mounts) == 0 {
					datasetToUpdate.Status.Mounts = datasetToUpdate.Spec.Mounts
				}
				cond = utils.NewDatasetCondition(datav1alpha1.DatasetReady, datav1alpha1.DatasetReadyReason,
					"The ddc runtime is ready.",
					corev1.ConditionTrue)
			case datav1alpha1.FailedDatasetPhase:
				cond = utils.NewDatasetCondition(datav1alpha1.DatasetReady, datav1alpha1.DatasetReadyReason,
					"The ddc runtime is not ready.",
					corev1.ConditionFalse)
			default:
				cond = utils.NewDatasetCondition(datav1alpha1.DatasetReady, datav1alpha1.DatasetReadyReason,
					"The ddc runtime is unknown.",
					corev1.ConditionFalse)
			}

			datasetToUpdate.Status.Phase = phase
			datasetToUpdate.Status.Conditions = utils.UpdateDatasetCondition(datasetToUpdate.Status.Conditions,
				cond)
		}

		if datasetToUpdate.Status.HCFSStatus == nil {
			datasetToUpdate.Status.HCFSStatus, err = e.GetHCFSStatus()
			if err != nil {
				return err
			}
		} else {
			e.Log.Info("No need to update HCFS status")
		}

		if !reflect.DeepEqual(dataset.Status, datasetToUpdate.Status) {
			err = e.Client.Status().Update(context.TODO(), datasetToUpdate)
		}

		return err
	})

	if err != nil {
		_ = utils.LoggingErrorExceptConflict(e.Log, err, "Failed to update dataset status", types.NamespacedName{Namespace: e.namespace, Name: e.name})
		return err
	}

	return
}

func (e *GooseFSEngine) BindToDataset() (err error) {
	return e.UpdateDatasetStatus(datav1alpha1.BoundDatasetPhase)
}