feat(db): upgrade auto-backup backup and rollback support EE-867 EE-1158 (#5341)

* backport migration EE code structure

* filesystem copy function

* set db status to updating before migration - reset on completion

* support for auto-backup on version upgrade

* - rollback cli flag support (with confirmation)
- rollback implementation backport from EE

* removed edition as it is not required in CE

* migrated test datastore from bolttest to bolt package to make it usable for testing

* backported failsafe migration

* - backported tests from EE
- refactored tests to use test datastore

* test store implementing datastore interface

* addressed PR issues/improvements

* refactor test

* added backup file removal error logging

* resolved conflicts, updated code

* fixed missing bolttest package - migrated to bolt

* feat(migration): wrap migration errors to provide context for failure EE-1742 (#5711)

* feat(migrator): wrap errors to provide more context to failures EE-1742

* add overall failure back in. diff log file

* updated helm tests pointing to correct teststore

Co-authored-by: Matt Hook <hookenz@gmail.com>

api/bolt/version/version.go

@@ -15,6 +15,7 @@ const (
 	versionKey  = "DB_VERSION"
 	instanceKey = "INSTANCE_ID"
 	editionKey  = "EDITION"
+	updatingKey = "DB_UPDATING"
 )
 
 // Service represents a service to manage stored versions.
@@ -83,6 +84,21 @@ func (service *Service) StoreDBVersion(version int) error {
 	})
 }
 
+// IsUpdating retrieves the database updating status.
+func (service *Service) IsUpdating() (bool, error) {
+	isUpdating, err := service.getKey(updatingKey)
+	if err != nil {
+		return false, err
+	}
+
+	return strconv.ParseBool(string(isUpdating))
+}
+
+// StoreIsUpdating store the database updating status.
+func (service *Service) StoreIsUpdating(isUpdating bool) error {
+	return service.setKey(updatingKey, strconv.FormatBool(isUpdating))
+}
+
 // InstanceID retrieves the stored instance ID.
 func (service *Service) InstanceID() (string, error) {
 	var data []byte