Chapter 9. Upgrading your Container-Native Storage Environment

This chapter describes the procedure to upgrade your environment from OpenShift 3.4 to OpenShift 3.5.

9.1. Upgrading cns-deploy and Heketi Server

  1. Execute the following command to update the heketi client and cns-deploy packages:
    # yum update cns-deploy -y 
    # yum update heketi-client -y
  2. Execute the following command to delete the heketi template
    # oc delete templates heketi
  3. Execute the following command to install the heketi template:
    # oc create -f /usr/share/heketi/templates/heketi-template.yaml
    template "heketi" created
  4. Execute the following command to grant the heketi Service Account the neccessary privileges:
    # oc policy add-role-to-user edit system:serviceaccount:<project_name>:heketi-service-account
    # oc adm policy add-scc-to-user privileged -z heketi-service-account
    For example,
    # oc policy add-role-to-user edit system:serviceaccount:storage-project:heketi-service-account
    # oc adm policy add-scc-to-user privileged -z heketi-service-account
  5. Execute the following command to delete the deployment configuration, service, and route for heketi:
    # oc delete deploymentconfig,service,route heketi
  6. Execute the following command to deploy the Heketi service which will be used to create persistent volumes for OpenShift:
    # oc process heketi | oc create -f -
    For example:
    # oc process heketi | oc create -f -
    
    service "heketi" created
    route "heketi" created
    deploymentconfig "heketi" created
  7. Execute the following command to verify that the containers are running:
    # oc get pods
    For example:
    # oc get pods
    NAME                             READY     STATUS    RESTARTS   AGE
    glusterfs-0h68l                  1/1       Running   0          3d
    glusterfs-0vcf3                  1/1       Running   0          3d
    glusterfs-gr9gh                  1/1       Running   0          3d
    heketi-1-zpw4d                   1/1       Running   0          3h
    storage-project-router-2-db2wl   1/1       Running   0          4d