Upgrade the Aerospike Version for Aerospike Clusters on Kubernetes

The Operator performs a rolling upgrade of the Aerospike cluster one node at a time, meaning that the upgrade is accomplished with zero downtime. A new node is created with the same pod configuration as the chosen node to upgrade.

For this example, the cluster is deployed using a file named aerospike-cluster.yaml.

Start the Upgrade

To upgrade the Aerospike cluster change the spec.image field in the aerocluster CR to the desired Aerospike enterprise server docker image.

apiVersion: asdb.aerospike.com/v1
kind: AerospikeCluster
metadata:
  name: aerocluster
  namespace: aerospike
spec:
  size: 2
  image: aerospike/aerospike-server-enterprise:6.4.0.0
  .
  .

Use kubectl to apply the change.

kubectl apply -f aerospike-cluster.yaml

The pods undergo a rolling restart. Use kubectl to watch the progress.

Output:

$ kubectl get pods -n aerospike
NAME          READY   STATUS              RESTARTS   AGE
aerocluster-0-0     1/1     Running         0          3m6s
aerocluster-0-1     1/1     Running         0          3m6s
aerocluster-0-2     1/1     Running         0          30s
aerocluster-0-3     1/1     Terminating     0          30s

After all the pods have restarted, use kubectl to get the status of the cluster. Check image for all Pods.

Output:

$ kubectl -n aerospike describe aerospikecluster aerocluster
Name:         aerocluster
Namespace:    aerospike
Kind:         AerospikeCluster
.
.
Status:
  .
  .
  Pods:
    aerocluster-0-0:
      Aerospike:
        Access Endpoints:
          10.128.15.225:31312
        Alternate Access Endpoints:
          34.70.193.192:31312
        Cluster Name:  aerocluster
        Node ID:       0a0
        Tls Access Endpoints:
        Tls Alternate Access Endpoints:
        Tls Name:
      Host External IP:  34.70.193.192
      Host Internal IP:  10.128.15.225
      Image:             aerospike/aerospike-server-enterprise:6.4.0.0
      Initialized Volume Paths:
        /opt/aerospike
      Pod IP:        10.0.4.6
      Pod Port:      3000
      Service Port:  31312