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14.2. Upgrading Container-Ready Storage

  1. Upgrade the Red Hat Gluster Storage cluster. Refer In-Service Software Upgrade.
  2. Upgrade Heketi by executing the following commands on the Red Hat Gluster Storage node where Heketi is running::
    1. Backup the Heketi database file 
      # cp -a /var/lib/heketi/heketi.db /var/lib/heketi/heketi.db.`date +%s`.`heketi --version | awk '{print $2}'`
      Copy to Clipboard Toggle word wrap
    2. Update Heketi by executing the following command in one of the Red Hat Gluster Storage nodes where Heketi is running: 
      # yum update heketi
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    3. To use gluster block, add the following two parameters to the glusterfs section in the heketi configuration file at /etc/heketi/heketi.JSON: 
      auto_create_block_hosting_volume
block_hosting_volume_size
      Copy to Clipboard Toggle word wrap
      Where:
      auto_create_block_hosting_volume: Creates Block Hosting volumes automatically if not found or if the existing volume is exhausted. To enable this, set the value to true.
      block_hosting_volume_size: New block hosting volume will be created in the size mentioned. This is considered only if auto_create_block_hosting_volume is set to true. Recommended size is 500G.
      For example: 
      .....
.....
"glusterfs" : {


                "executor" : "ssh",

                "db" : "/var/lib/heketi/heketi.db",

                "sshexec" : {
                "rebalance_on_expansion": true,
                "keyfile" : "/etc/heketi/private_key"
                },

                "auto_create_block_hosting_volume": true,

                "block_hosting_volume_size": 500G
        },
.....
.....
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    4. Restart the Heketi service: 
      # systemctl restart heketi
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  3. Execute the following command to install gluster block: 
    # yum install gluster-block
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  4. Enable and start the gluster block service: 
    # systemctl enable gluster-blockd
# systemctl start gluster-blockd
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  5. Execute the following command to update the heketi client and cns-deploy packages 
    # yum install cns-deploy -y
# yum update cns-deploy -y 
# yum update heketi-client -y
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  6. Execute the following commands to deploy the gluster-block provisioner: 
    # sed -e 's/\\\${NAMESPACE}/<NAMESPACE>/' /usr/share/heketi/templates/glusterblock-provisioner.yaml | oc create -f -
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    # oadm policy add-cluster-role-to-user glusterblock-provisioner-runner system:serviceaccount:<NAMESPACE>:glusterblock-provisioner
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    For example: 
    # sed -e 's/\\\${NAMESPACE}/storage-project/' /usr/share/heketi/templates/glusterblock-provisioner.yaml | oc create -f -
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    # oadm policy add-cluster-role-to-user glusterblock-provisioner-runner system:serviceaccount:storage-project:glusterblock-provisioner
    Copy to Clipboard Toggle word wrap
  7. Support for S3 compatible Object Store is under technology preview. To enable S3 compatible object store, refer Chapter 18, S3 Compatible Object Store in a Container-Native Storage Environment.
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