Upgrade PX-Backup

Depending on which version of PX-Backup you’re running, the upgrade method you use will differ. Prior to version 1.0.2, PX-Backup used operator-based installs; versions 1.0.2 and newer use Helm-based installs. Perform the upgrade procedures appropriate for your version.

Upgrade PX-Backup using Helm

Once you’ve moved from an operator-based install to a Helm-based install, you can upgrade using Helm.

Prerequisites

You must have PX-Backup with a Helm-based install

Upgrade PX-Backup

Follow the steps in this section to upgrade PX-Backup using Helm.

Update your Helm repos:
```
helm repo update
```
Retrieve all custom values you used during install. Enter the following helm get values command to generate a YAML file, adjusting the values of the <namespace> and <release-name> parameters to match your environment:
```
helm get values --namespace <docs-namespace> <release-name> -o yaml > values.yaml
```
```
oidc:
    centralOIDC:
        defaultPassword: examplePassword
        defaultUsername: exampleUser
operatorToChartUpgrade: true
persistentStorage:
    enabled: true
    storageClassName: px-sc
pxbackup:
    orgName: exampleOrg
pxcentralDBPassword: exampleDbPassword
```
Note the following about this example output:
- The persistentStorage.storageClassName field displays the name of your storage class (px-sc).
- The persistentStorage.enabled: true field indicates that persistent storage is enabled.
- The pxbackup.orgName field displays the name of your organization (my-organization)

Delete all of the stateful sets:

kubectl delete sts --namespace <namespace> pxc-backup-etcd pxcentral-keycloak pxcentral-keycloak-postgresql

Delete the post install hook job:

kubectl delete job pxcentral-post-install-hook --namespace <namespace>

Run the helm upgrade command, using the -f flag to pass the custom values.yaml file you generated above and specifying the following --set options as a comma-separated list:
- oidc.centralOIDC.defaultPassword= with your current password
- oidc.centralOIDC.defaultUsername= with your current username
```
helm upgrade px-backup portworx/px-backup --namespace px-backup -f values.yaml  --set oidc.centralOIDC.defaultPassword=<current-password>,oidc.centralOIDC.defaultUsername=<current-username> 
```

Upgrade PX-Backup from an operator-based install

To upgrade PX-Backup from an operator-based install to the Helm-based install introduced with 1.0.2, you must download, modify, and apply the following specs:

Prerequisites

You must have storkctl installed on your Portworx cluster

Download the create_new_pvc_from_snapshot script

Download the create_new_pvc_from_snapshot.yaml spec:

curl -o create_new_pvc_from_snapshot.yaml https://raw.githubusercontent.com/portworx/helm/chart_upgrade_specs/pxcentral-operator-to-chart-upgrade/create_new_pvc_from_snapshot.yaml

Change the meta.helm.sh/release-namespace annotation, specifying the namespace you installed PX-Central and PX-Backup onto originally:
```
meta.helm.sh/release-namespace: <original-px-backup-namespace>
```

Upgrade your operator-based on-prem PX-Central deployment to the Helm chart method

Fetch the org name from your cluster, specifying the namespace in which your current on-prem PX-Central deployment exists:
```
kubectl get cm pxc-central-ui-configmap -o yaml -n <px-central-namespace> | grep PX_BACKUP_ORGID
```

Download the create_volume_snapshot_from_pvc.yaml spec:

curl -o create_volume_snapshot_from_pvc.yaml https://raw.githubusercontent.com/portworx/helm/chart_upgrade_specs/pxcentral-operator-to-chart-upgrade/create_volume_snapshot_from_pvc.yaml

Edit the spec, changing all occurrences of the namespace: portworx field to the namespace in which your current on-prem PX-Central deployment exists.
Apply the spec, creating a volume snapshot from the existing PX-Central on-prem PVCs in the namespace you provided in the previous step:
```
kubectl apply -f create_volume_snapshot_from_pvc.yaml
```

Verify that the snapshots you’ve taken in the step above are intact and ready to be restored. Provide the namespace in which your current on-prem PX-Central deployment exists:

storkctl get snapshot --namespace <px-central-namespace>

    NAME                                       PVC                                           STATUS   CREATED               COMPLETED             TYPE
px-etcd-data-px-backup-etcd-0-snapshot     pxc-etcd-data-pxc-backup-etcd-0               Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local
px-etcd-data-px-backup-etcd-1-snapshot     pxc-etcd-data-pxc-backup-etcd-1               Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local
px-etcd-data-px-backup-etcd-2-snapshot     pxc-etcd-data-pxc-backup-etcd-2               Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local
pxcentral-keycloak-postgresql-0-snapshot   pxc-keycloak-data-pxc-keycloak-postgresql-0   Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local
pxcentral-mysql-pvc-snapshot               pxc-mysql-pvc                                 Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local
theme-pxcentral-keycloak-0-snapshot        theme-pxc-keycloak-0                          Ready    28 Jul 20 01:29 UTC   28 Jul 20 01:29 UTC   local

Cleanup the existing px-central-onprem deployment using the cleanup script.
- If the current PX-Central on-prem deployment is using an existing Portworx cluster for persistent storage, use following commands for cleanup:
```
curl -o px-central-cleanup.sh 'https://raw.githubusercontent.com/portworx/px-central-onprem/1.0.4/cleanup.sh'
bash px-central-cleanup.sh
```
- If the current Portworx cluster deployment is part of a PX-Central on-prem cluster, use following commands for cleanup:
```
curl -o px-central-cleanup.sh 'https://raw.githubusercontent.com/portworx/px-central-onprem/1.0.4/pxcentral-components-cleanup.sh'
bash px-central-cleanup.sh
```
Create new PVCs from the volume snapshots you created in step 1 in the same namespace where PX-Central on-prem was originally deployed:
```
kubectl apply -f create_new_pvc_from_snapshot.yaml
```
Install PX-Backup using the Helm chart, specifying your own values for the following:
- The --namespace flag with the namespace in which your current on-prem PX-Central deployment exists
- As part of the --set flag, the pxbackup.orgName= parameter with your own org name that you fetched in the step above
- The oidc.centralOIDC.defaultUsername= parameter with your PX-Central login ID
- The oidc.centralOIDC.defaultPassword= parameter with your PX-Central password
```
helm repo add portworx http://charts.portworx.io/
helm repo update
helm install px-backup portworx/px-backup --namespace <px-central-namespace> --create-namespace --set persistentStorage.enabled=true,persistentStorage.storageClassName=stork-snapshot-sc,operatorToChartUpgrade=true,pxbackup.orgName=<orgName>,pxcentralDBPassword=singapore,oidc.centralOIDC.defaultUsername=<px-central-login>,oidc.centralOIDC.defaultPassword=<px-central-password>
```
NOTE: In the Helm install command above, mention the same organization name which was used in previous operator based install.