The migrate-controller component is developed based on open source Velero. migrate-controller is deeply integrated with the snapshot technologies and Hybrid Backup Recovery (HBR) service of Alibaba Cloud. You can use migrate-controller to back up, restore, and migrate data and application templates. This topic introduces migrate-controller and describes the release notes for migrate-controller.

Introduction

For more information about how to install migrate-controller, see Enable cluster backup.

You can use migrate-controller to back up applications and persistent volumes (PVs) in your Kubernetes clusters. A variety of policies are supported to filter the applications that you want to back up. For example, you can back up applications based on namespaces, labels, and resource types. migrate-controller allows you to create disk snapshots and use HBR to back up files. migrate-controller also allows you to reduce the recovery time objective (RTO) of data restoration by using snapshots.

Usage notes

You can use migrate-controller to back up, restore, and migrate applications. For more information, see Back up and restore applications and Migrate applications across clusters.

Release notes

March 2022

Version Image address Release date Description Impact
v1.6.1-1af0d36-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.6.1-1af0d36-aliyun 2022-03-22
  • This image version is compatible with ACK clusters that run Kubernetes 1.22.
  • The issue that the expiration time of backup files is inconsistent is fixed.
  • The default node taints are supported by hbr-client.
Ongoing backup tasks may be interrupted.

December 2021

Version Image address Release date Description Impact
v1.5.9-37df39a-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.9-37df39a-aliyun 2021-12-24 hbr-client is no longer deployed on each node but only on nodes that you specify. Ongoing backup tasks may be interrupted.

November 2021

Version Image address Release date Description Impact
v1.5.8-14de9e1-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.8-14de9e1-aliyun 2021-11-28
  • migrate-controller can be used in multi-cluster scenarios.
  • Snapshots of persistent volume claims (PVCs) that are used to provision disk volumes can be created.
  • The concurrency of snapshot creation requests is improved.
  • Cross-region data restoration that uses snapshots is supported.
Ongoing backup tasks may be interrupted.

October 2021

Version Image address Release date Description Impact
v1.5.6-94176c2-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.6-94176c2-aliyun 2021-10-12 The methods to back up file systems are optimized. The HBR client can be dynamically started. Ongoing backup tasks may be interrupted.
v1.5.7-561a15f-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.7-561a15f-aliyun 2021-10-15 The logic of internal access to HBR is optimized. Ongoing backup tasks may be interrupted.

September 2021

Version Image address Release date Description Impact
v1.5.5-d5e168a-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.5-d5e168a-aliyun 2021-09-20
  • The error message for backup failures is updated.
  • The issue that namespaces cannot be created when the system has ongoing data restoration tasks is fixed.
  • The DaemonSet of the backup client of HBR is no longer automatically deployed. If you want to use HBR, you must manually deploy the DaemonSet.
  • Backslashes (\) are supported to specify the names of subdirectories in Object Storage Service (OSS) buckets.
  • An error is reported when you back up a file system without having HBR enabled.
Ongoing backup tasks may be interrupted.
v1.5.2-d728be2-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.5.2-d728be2-aliyun 2021-09-10
  • Compatibility with earlier versions is supported.
  • Snapshot creation methods are upgraded.
  • HBR is used to back up files.
  • Disk snapshots and snapshots of Apsara File Storage NAS (NAS) file systems are supported to reduce the RTO of data restoration.
  • The permission control policies of Container Service for Kubernetes (ACK) managed clusters are upgraded.
  • Restic is no longer supported to back up data.
Ongoing backup tasks may be interrupted.

July 2021

Version Image address Release date Description Impact
v1.4.1-f745291-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.4.1-f745291-aliyun 2021-07-13 The snapshot feature can be enabled based on the Kubernetes version and the Container Storage Interface (CSI) plug-in version. Ongoing backup tasks may be interrupted.

March 2021

Version Image address Release date Description Impact
v1.3.1-3026c10-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.3.1-3026c10-aliyun 2021-03-31 The logic of component uninstallation is upgraded. Errors about components are fixed. Ongoing backup tasks may be interrupted.
v1.3.1-665c3ea-aliyun registry.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.3.1-665c3ea-aliyun 2021-03-31 Volume snapshots are supported in registered clusters. Ongoing backup tasks may be interrupted.
v1.3.0-9274575-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.0.1.2-h-e616322-aliyun 2021-03-29 Volume snapshots are supported to back up volumes. Ongoing backup tasks may be interrupted. To upgrade the component, Submit a ticket to contact the technical support team.

December 2020

Version Image address Release date Description Impact
v1.0.1.2-h-e616322-aliyun registry.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.0.1.2-h-e616322-aliyun 2020-12-24 Velero is upgraded to the open source version 1.5.2 in registered clusters. Ongoing backup tasks may be interrupted. To upgrade the component, Submit a ticket to contact the technical support team.
v1.0.1.2-a-e616322-aliyun registry-vpc.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.0.1.2-h-e616322-aliyun 2020-12-30 Velero is upgraded to the open source version 1.5.2 in ACK managed clusters and ACK dedicated clusters. Ongoing backup tasks may be interrupted. To upgrade the component, Submit a ticket to contact the technical support team.

September 2020

Version Image address Release date Description Impact
v1.0.1.1-30d319f-aliyun registry.{{.Region}}.aliyuncs.com/acs/velero-installer:v1.0.1.1-30d319f-aliyun 2020-09-21 Application migration, backup, and restoration are supported in registered clusters and ACK managed clusters. First version.