Upgrade DirectPV

Follow the steps below to perform an offline upgrade:

1. Uninstall the DirectPV CSI driver.

   This does not remove any existing resources.

   kubectl directpv uninstall
   

2. Upgrade the DirectPV plugin.

   kubectl krew upgrade directpv
   

   If you use the binary instead of krew, download the latest binary for your operating system and architecture.

3. Install the latest DirectPV CSI driver.

Follow the steps below to perform an in-place upgrade:

1. Use the following command to upgrade the DirectPV krew plugin:

   kubectl krew upgrade directpv
   

   If you use the binary instead of krew, download the latest binary for your operating system and architecture.

2. Run the install script with the appropriate node-selector, tolerations, and KUBELET_DIR_PATH environment variables needed for your environment.

   curl -sfL https://github.com/minio/directpv/raw/master/docs/tools/install.sh | sh -s - apply
   

If you upgrade to 4.1.x and wish to retain support for PodSecurityPolicy, complete the following steps.

Make a backup of the existing psp and clusterrolebinding YAML specifications.

kubectl get psp directpv-min-io -o yaml > psp.yaml
kubectl get clusterrolebinding psp-directpv-min-io -o yaml > psp-crb.yaml

After completing the other upgrade steps, apply the psp and clusterrolebinding YAML backups.

kubectl apply -f psp.yaml
kubectl apply -f psp-crb.yaml

For older versions, upgrade to v3.2.2 before upgrading to the latest version.

In the latest version of DirectPV, the CSI sidecar images have been updated.

1. If you are upgrading from 3.1.0 or later, uninstall the existing DirectCSI driver.

   Uninstalling DirectPV does not remove any resources.

   kubectl directcsi uninstall
   

   If you are upgrading from an older version, you will do this step later in the process.

2. Upgrade or install the latest version of the DirectPV plugin.

   kubectl krew upgrade directpv
   

   If you have not upgraded from Direct CSI to DirectPV, use the following instead:

   kubectl krew install directpv
   

3. (Optional) If you are using custom storage classes for scheduling and you are upgrading from a version < v4.0.0, you must modify the storage class parameters.

   Change direct.csi.min.io/access-tier: <your_access_tier_value> to directpv.min.io/access-tier: <your_access_tier_value> in the respective storage class parameters section.

4. Install the updated version of Direct-CSI.

   kubectl directpv install
   

   For more details on the installation process or custom installation methods, refer to the nstallation documentation.

5. If you are upgrading from a version older that 3.1.0, uninstall the DirectCSI driver.

   kubectl directcsi uninstall
   

6. Check that the pods are running.

   kubectl get pods -n direct-csi-min-io -w
   

7. Verify you can reach the DirectPV drives.

   kubectl directpv drives ls
   

The older CRDs (directcsidrives and directcsivolumes) are deprecated and not used in versions > v4.0.0. These can be removed after upgrading.

Use the following Bash script to remove the older objects after upgrading to latest.

#!/usr/bin/env bash
#
# This file is part of MinIO DirectPV
# Copyright (c) 2023 MinIO, Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

#
# This script removes direct-csi drives and volumes after taking backup YAMLs
# to directcsidrives.yaml and directcsivolumes.yaml
#

set -e -C -o pipefail

function init() {
    if [[ $# -ne 0 ]]; then
        echo "usage: remove-directcsi.sh"
        echo
        echo "This script removes direct-csi drives and volumes after taking backup YAMLs"
        echo "to directcsidrives.yaml and directcsivolumes.yaml"
        exit 255
    fi

    if ! which kubectl >/dev/null 2>&1; then
        echo "kubectl not found; please install"
        exit 255
    fi
}

# usage: unset_object_finalizers <resource>
function unset_object_finalizers() {
    kubectl get "${1}" -o custom-columns=NAME:.metadata.name --no-headers | while read -r resource_name; do
        kubectl patch "${1}" "${resource_name}" -p '{"metadata":{"finalizers":null}}' --type=merge
    done
}

function main() {
    kubectl get directcsivolumes -o yaml > directcsivolumes.yaml
    kubectl get directcsidrives -o yaml > directcsidrives.yaml

    # unset the finalizers
    unset_object_finalizers "directcsidrives"
    unset_object_finalizers "directcsivolumes"
    
    # delete the resources
    kubectl delete directcsivolumes --all
    kubectl delete directcsidrives --all
}

init "$@"
main "$@"

If you are on DirectCSI version < 3.2.2, first upgrade to v3.2.2, then upgrade to the latest version.

1. Uninstall the existing setup.

   Uninstalling DirectPV does not remove any resources.

   kubectl direct-csi uninstall
   

2. Confirm the deletion of the CSI pods.

   kubectl get pods -n direct-csi-min-io
   

   DirectPV v4.0.0 and later do not use the direct-cs-min-io namespace when creating new drives or volumes. However, the latest versions of DirectPV can continue to use resources already existing in that namespace.

3. Download Direct-CSI v3.2.2 from https://github.com/minio/directpv/releases/tag/v3.2.2.

4. Load the following images:

   quay.io/minio/csi-provisioner:v2.2.0-go1.18
   quay.io/minio/csi-node-driver-registrar:v2.2.0-go1.18
   quay.io/minio/livenessprobe:v2.2.0-go1.18
   

   If your kubernetes version is less than v1.20, also push quay.io/minio/csi-provisioner:v2.2.0-go1.18

5. Install the updated version of Direct-CSI.

   kubectl direct-csi install
   

6. Check that the pods are running.

   kubectl get pods -n direct-csi-min-io -w
   

7. Verify you can reach the DirectPV drives.

   kubectl direct-csi drives ls
   

   Upgrade DirectPV Plugin

   To upgrade the plugin using krew, use the following command.

   kubectl krew upgrade directpv
   

   To upgrade from a binary, follow the binary installation instructions.