Background information

The system services of a cluster, including Log Service acslogging, Simple Routing Service acsrouting, Monitor Service acsmonitoring, and Volume Service acsvolumedriver, are used to deal with general services necessary for applications. This document introduces how to upgrade these system services.

During the upgrade of the cluster system services, your applications or services may be temporarily inaccessible or abnormal, so proceed with caution. We recommend that you upgrade the system services when the access traffic is low or at the maintenance time.


  1. Log on to the Container Service console.
  2. Under Swarm, click Clusters in the left-side navigation pane.
  3. On the Cluster List page, click More at the right of the cluster whose system services you want to upgrade and then select Upgrade System Service from the drop-down list. As shown in the following figure.

  4. The Upgrade System Service dialog box opens. Select the system services you want to upgrade and click Upgrade

    For example, select Simple Routing Service (corresponding to acsrouting; note that the upgrade will temporarily affect your access to applications) and Volume Service (corresponding to acsvolumedriver; note that the upgrade might temporarily affect the functions of your associated applications).

    Click Applications in the left-side navigation pane and select the cluster from the Cluster drop-down list. You can see the system services are being upgraded. 

    After the upgrade, the affected services and applications resume normal functioning.