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migrate.go
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migrate.go
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package directvolumemigration
import (
"context"
"fmt"
"time"
liberr "github.com/konveyor/controller/pkg/error"
"github.com/konveyor/mig-controller/pkg/errorutil"
k8sclient "sigs.k8s.io/controller-runtime/pkg/client"
migapi "github.com/konveyor/mig-controller/pkg/apis/migration/v1alpha1"
k8serrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
func (r *ReconcileDirectVolumeMigration) migrate(ctx context.Context, direct *migapi.DirectVolumeMigration) (time.Duration, error) {
planResources, err := r.getDVMPlanResources(direct)
if err != nil {
return 0, liberr.Wrap(err)
}
sparseFilePVCMap, err := r.getSparseFilePVCMap(planResources.MigPlan)
if err != nil {
return 0, liberr.Wrap(err)
}
endpointType, err := r.getEndpointType(direct)
if err != nil {
return 0, liberr.Wrap(err)
}
// Started
if direct.Status.StartTimestamp == nil {
log.Info("Marking DirectVolumeMigration as started.")
direct.Status.StartTimestamp = &metav1.Time{Time: time.Now()}
}
// Run
task := Task{
Log: log,
Client: r,
Owner: direct,
Phase: direct.Status.Phase,
PhaseDescription: direct.Status.PhaseDescription,
PlanResources: planResources,
SparseFileMap: sparseFilePVCMap,
Tracer: r.tracer,
EndpointType: endpointType,
}
err = task.Run(ctx)
if err != nil {
if k8serrors.IsConflict(errorutil.Unwrap(err)) {
log.V(4).Info("Conflict error during task.Run, requeueing.")
return FastReQ, nil
}
log.Info("Phase execution failed.",
"phase", task.Phase,
"phaseDescription", task.getPhaseDescription(task.Phase),
"error", errorutil.Unwrap(err).Error())
log.Trace(err)
task.fail(MigrationFailed, []string{err.Error()})
return task.Requeue, nil
}
// Result
direct.Status.PhaseDescription = task.PhaseDescription
direct.Status.Phase = task.Phase
direct.Status.Itinerary = task.Itinerary.Name
// Completed
if task.Phase == Completed {
direct.Status.DeleteCondition(Running)
failed := task.Owner.Status.FindCondition(Failed)
if failed == nil {
direct.Status.SetCondition(migapi.Condition{
Type: Succeeded,
Status: True,
Reason: task.Phase,
Category: Advisory,
Message: SucceededMessage,
Durable: true,
})
}
return NoReQ, nil
}
// Running
step, n, total := task.Itinerary.progressReport(task.Phase)
message := fmt.Sprintf(RunningMessage, n, total)
direct.Status.SetCondition(migapi.Condition{
Type: Running,
Status: True,
Reason: step,
Category: Advisory,
Message: message,
})
return task.Requeue, nil
}
// fetches DVM Migration object and Migplan resources if DVM has an owner reference
func (r *ReconcileDirectVolumeMigration) getDVMPlanResources(direct *migapi.DirectVolumeMigration) (*migapi.PlanResources, error) {
if len(direct.OwnerReferences) > 0 {
migration := &migapi.MigMigration{}
planResources := &migapi.PlanResources{}
// Ready
migration, err := direct.GetMigrationForDVM(r)
if err != nil {
return planResources, liberr.Wrap(err)
}
if migration == nil {
log.Info("Migration not found for DVM", "name", direct.Name)
return planResources, liberr.Wrap(err)
}
plan, err := migration.GetPlan(r)
if err != nil {
return planResources, liberr.Wrap(err)
}
if !plan.Status.IsReady() {
log.Info("Plan not ready.", "name", migration.Name)
return planResources, liberr.Wrap(err)
}
// Resources
planResources, err = plan.GetRefResources(r)
if err != nil {
return planResources, liberr.Wrap(err)
}
return planResources, nil
}
return &migapi.PlanResources{}, nil
}
type sparseFilePVCMap map[string]bool
func (r *ReconcileDirectVolumeMigration) getSparseFilePVCMap(plan *migapi.MigPlan) (sparseFilePVCMap, error) {
sparseFilesMap := make(sparseFilePVCMap)
if plan == nil {
return sparseFilesMap, nil
}
analytics := &migapi.MigAnalyticList{}
err := r.List(context.TODO(),
analytics, k8sclient.MatchingLabels(
map[string]string{
"migplan": plan.Name}))
if err != nil {
return nil, liberr.Wrap(err)
}
for _, migAnalytic := range analytics.Items {
if migAnalytic.Spec.AnalyzeExtendedPVCapacity {
for _, ns := range migAnalytic.Status.Analytics.Namespaces {
for _, pv := range ns.PersistentVolumes {
if pv.SparseFilesFound {
sparseFilesMap[fmt.Sprintf(
"%s/%s", ns.Namespace, pv.Name)] = true
}
}
}
}
}
return sparseFilesMap, nil
}
// getEndpointType returns user configured endpoint type to be used for rsync transfer
func (r *ReconcileDirectVolumeMigration) getEndpointType(direct *migapi.DirectVolumeMigration) (migapi.EndpointType, error) {
destCluster, err := direct.GetDestinationCluster(r)
if err != nil {
return "", liberr.Wrap(err)
}
destClient, err := destCluster.GetClient(r)
if err != nil {
return "", liberr.Wrap(err)
}
clusterConfig, err := destCluster.GetClusterConfigMap(destClient)
if err != nil {
return "", liberr.Wrap(err)
}
endpointType, exists := clusterConfig.Data[migapi.RSYNC_ENDPOINT_TYPE]
if !exists {
return migapi.Route, nil
}
switch migapi.EndpointType(endpointType) {
case migapi.Route, migapi.ClusterIP, migapi.NodePort:
return migapi.EndpointType(endpointType), nil
default:
log.Info("invalid endpoint type specified, using default", "specified", endpointType, "default", migapi.Route)
return migapi.Route, nil
}
}