* from one role to another by marking usages which are present in the current role but not present in the eventual role
 * as deprecated.
 *
 * <p>The roles here are all meant to be temporary roles used for migration only, to be removed in Gradle 9.0.</p>
 *
 * <p>This is meant to only support <strong>narrowing migrations</strong>, that restrict usage that was previously

}

// Migrator manages etcd data migrations.
type Migrator struct {
	cfg           *EtcdMigrateCfg // TODO: don't wire this directly in
	dataDirectory *DataDirectory
	client        EtcdMigrateClient
}

// MigrateIfNeeded upgrades or downgrades the etcd data directory to the given target version.
func (m *Migrator) MigrateIfNeeded(target *EtcdVersionPair) error {
	klog.Infof("Starting migration to %s", target)

const (
	// Indicates that the migration is running.
	MigrationRunning MigrationConditionType = "Running"
	// Indicates that the migration has completed successfully.
	MigrationSucceeded MigrationConditionType = "Succeeded"
	// Indicates that the migration has failed.
	MigrationFailed MigrationConditionType = "Failed"
)

// Describes the state of a migration at a certain point.
type MigrationCondition struct {

                description: ClusterType describes the type of the cluster
                type: string
              datastoreReady:
                description: DatastoreReady is used during significant datastore migrations
                  to signal to components such as Felix that it should wait before
                  accessing the datastore.
                type: boolean
              variant:

const (
	// Indicates that the migration is running.
	MigrationRunning MigrationConditionType = "Running"
	// Indicates that the migration has completed successfully.
	MigrationSucceeded MigrationConditionType = "Succeeded"
	// Indicates that the migration has failed.
	MigrationFailed MigrationConditionType = "Failed"
)

// Describes the state of a migration at a certain point.
type MigrationCondition struct {

  // to migrate. When the .status.conditions indicates the migration is
  // "Running", users can use this token to check the progress of the
  // migration.
  // +optional
  optional string continueToken = 2;
}

// Status of the storage version migration.
message StorageVersionMigrationStatus {
  // The latest available observations of the migration's current state.
  // +patchMergeKey=type
  // +patchStrategy=merge

}

var map_StorageVersionMigrationStatus = map[string]string{
	"":                "Status of the storage version migration.",
	"conditions":      "The latest available observations of the migration's current state.",

* Context, Prepared Statement Mode, DryRun Mode
* Batch Insert, FindInBatches, Find To Map
* SQL Builder, Upsert, Locking, Optimizer/Index/Comment Hints, NamedArg, Search/Update/Create with SQL Expr
* Composite Primary Key
* Auto Migrations
* Logger
* Extendable, flexible plugin API: Database Resolver (Multiple Databases, Read/Write Splitting) / Prometheus…
* Every feature comes with tests
* Developer Friendly

## Getting Started

## Migrations

Because we are using SQLAlchemy directly and we don't require any kind of plug-in for it to work with **FastAPI**, we could integrate database <abbr title="Automatically updating the database to have any new column we define in our models.">migrations</abbr> with <a href="https://alembic.sqlalchemy.org" class="external-link" target="_blank">Alembic</a> directly.

)

func init() {
	// Enable klog which is used in dependencies
	klog.InitFlags(nil)
	flag.Set("logtostderr", "true")
	flag.Set("v", "9")
}

func TestMigrate(t *testing.T) {
	migrations := []struct {
		title            string
		memberCount      int
		startVersion     string
		endVersion       string
		protocol         string
		clientListenUrls string
	}{
		// upgrades