Upgrade a cluster

This topic describes how to upgrade an OceanBase cluster that is deployed by using ob-operator.

Prerequisites

Before you upgrade a cluster, make sure that the cluster is in the Running state.

Procedure

Modify the tag setting in spec

1. Modify the configuration file of the OceanBase cluster. For more information about the complete configuration file, see Create a cluster. Change the value of the spec.observer.image parameter to the target image.

   # Before modification
   spec:
     observer:
       image: oceanbase/oceanbase-cloud-native:4.2.0.0-101000032023091319
   
   # After modification
   spec:
     observer:
       image: oceanbase/oceanbase-cloud-native:4.2.1.1-101000062023110109
   

2. Run the following command for the modification to take effect:

   kubectl apply -f obcluster.yaml
   

3. Query the status of custom resources in the OceanBase cluster to check whether the operation succeeds. Run the following command to query the status of custom resources in the OceanBase cluster. If the cluster is in the Running state and the value of the image parameter is the target image, the cluster is upgraded.

kubectl get obclusters.oceanbase.oceanbase.com test -n oceanbase -o yaml

# desired output, only displays status here
status:
  image: oceanbase/oceanbase-cloud-native:4.2.1.1-101000062023110109
  obzones:
  - status: running
    zone: obcluster-1-zone1
  - status: running
    zone: obcluster-1-zone2
  - status: running
    zone: obcluster-1-zone3
  parameters: []
  status: running