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Version: 3.2

Install Portworx on OpenShift GCP

This page provides instructions for installing Portworx on OpenShift running on Google Cloud Platform (GCP).

Prerequisites​

  • A supported version of OpenShift cluster running on Google Cloud that meets the minimum requirements for Portworx with at least 3 worker nodes.
  • Google Cloud command line tool (gcloud) to configure permissions to deploy Portworx.
  • Network:
    • Ports 17001 - 17020 opened for Portworx node to node communication
    • Ports 111, 2049, and 20048 opened for sharedv4 volumes support (NFSv3)
    • Port 2049 (NFS server) opened only if using sharedv4 services (NFSv4)

Grant the necessary permissions to Portworx​​

Create the following default roles for Portworx to manage GCP disks:

  • Compute Admin/ custom IAM role
  • Service Account User

Create a custom Google IAM role​

If you prefer that Portworx has minimal access required, then create a custom IAM role providing the compute permissions. This role allows Portworx to have set of permissions to create, attach, or manage disks on VM instances.

  1. Create the following portworx-role.yaml file with the following minimum permissions: 
    title: "Portworx role"
    description: "Portworx role for managed disks"
    stage: "GA"
    includedPermissions:
    - compute.disks.addResourcePolicies
    - compute.disks.create
    - compute.disks.createSnapshot
    - compute.disks.delete
    - compute.disks.get
    - compute.disks.getIamPolicy
    - compute.disks.list
    - compute.disks.removeResourcePolicies
    - compute.disks.resize
    - compute.disks.setIamPolicy
    - compute.disks.setLabels
    - compute.disks.update
    - compute.disks.use
    - compute.disks.useReadOnly
    - compute.instances.attachDisk
    - compute.instances.detachDisk
    - compute.instances.get
    - compute.nodeGroups.get
    - compute.nodeGroups.getIamPolicy
    - compute.nodeGroups.list
    - compute.zoneOperations.get
    - container.clusters.get
  2. Create your custom role for Portworx using the portworx-role.yaml file: 
    gcloud iam roles create portworx_role --project=<your-gcp-project> \
    --file=portworx-role.yaml
    Once you have created the custom IAM role, you need to bind it with a service account using which you can manage GCP disks.

Create a Service Account​

Create a service account with the appropriate permissions. This account is required to interact with GCP services.

  1. Run the following command to create a Service account:

    gcloud iam service-accounts create <your-service-account-name>

  2. Grant the required permissions to the Service Account using your custom role created previously:

    gcloud projects add-iam-policy-binding <your-gcp-project> \
    --member="serviceAccount:<your-custom-role>@<your-gcp-project>.iam.gserviceaccount.com" \
    --role=projects/<your-gcp-project>/roles/portworx_role

    This command grants the service account the permissions defined in the portworx_role file.

  3. Grant your service account the Service account user permissions:

    gcloud projects add-iam-policy-binding <your-gcp-project> \
    --member="serviceAccount:<your-custom-role>@<your-gcp-project>.iam.gserviceaccount.com" \
    --role="roles/iam.serviceAccountUser"
  1. Run the following command to get the JSON output of your service account: 
    gcloud iam service-accounts keys create gcloud.json \
    --iam-account=<@<your-gcp-project>.iam.gserviceaccount.com

Create a secret​

Create a secret called px-gcloud in the Portworx namespace (namespace where you will deploy Portworx) using the previously generated JSON file. This will be used for authenticating your service account:

oc -n portworx create secret generic px-gcloud --from-file=gcloud.json

Create a monitoring ConfigMap​

Newer OpenShift versions do not support the Portworx Prometheus deployment. As a result, you must enable monitoring for user-defined projects before installing the Portworx Operator. Use the instructions in this section to configure the OpenShift Prometheus deployment to monitor Portworx metrics.

To integrate OpenShift’s monitoring and alerting system with Portworx, create a cluster-monitoring-config ConfigMap in the openshift-monitoring namespace:

apiVersion: v1
kind: ConfigMap
metadata:
  name: cluster-monitoring-config
  namespace: openshift-monitoring
data:
  config.yaml: |
    enableUserWorkload: true

The enableUserWorkload parameter enables monitoring for user-defined projects in the OpenShift cluster. This creates a prometheus-operated service in the openshift-user-workload-monitoring namespace.

Install Portworx using OCP console​

Follow the instructions in this section to deploy Portworx.

Generate the specs​

  1. Sign in to the Portworx Central console.
    The system displays the Welcome to Portworx Central! page.
  2. In the Portworx Enterprise section, select Generate Cluster Spec.
    The system displays the Generate Spec page.
  3. From the Portworx Version dropdown menu, select the Portworx version to install.
  4. For Platform, choose Google Cloud. Select OpenShift4+ for Distribution Name.
  5. In the Summary section, check the Kubernetes version, edit it if required. Click Save spec to generate the spec file.

Install the Portworx Operator​

Before you can install Portworx on your OpenShift cluster, you must first install the Portworx Operator. Perform the following steps to prepare your OpenShift cluster by installing the Operator.

  1. From your OpenShift UI, select OperatorHub in the left pane.

  2. On the OperatorHub page, search for Portworx and select the Portworx Enterprise Operator:

    search catalog

  3. Click Install to install Portworx Operator:

    select catalog

  4. The Portworx Operator begins to install and takes you to the Install Operator page. On this page, select A specific namespace on the cluster option for Installation mode. Choose the Create Project option from the Installed Namespace dropdown:

    Portworx namespace

  5. On the Create Project window, enter the name portworx and click Create to create a namespace called portworx.

  6. Click Install to deploy Portworx Operator in the portworx namespace.

Apply the StorageCluster spec​

  1. Once the Operator is installed successfully, create a StorageCluster object by clicking the Create StorageCluster button on the same page:

    Portworx Operator

  2. Copy the spec you created with the spec generator and paste it over the default spec in the YAML view.

  3. Add the following to your StorageCluster, and click Create. This will ensure that Portworx has the proper authorization to manage GCP disks:

    volumes:
      - name: gcloud
        mountPath: /etc/pwx/gce
        secret:
          secretName: px-gcloud
    env:
      - name: GOOGLE_APPLICATION_CREDENTIALS
        value: "/etc/pwx/gce/gcloud.json"

    The spec displayed here represents a very basic default spec: Portworx Operator

  4. Verify that Portworx has deployed successfully by navigating to the Storage Cluster tab of the Installed Operators page:

    Portworx Operator

    Once Portworx has fully deployed, the status will show as Online:

    Portworx Operator

Verify if all pods are running​

Enter the following oc get pods command to list and filter the results for Portworx pods:

oc get pods -n portworx -o wide | grep -e portworx -e px
portworx-api-774c2                                      1/1     Running   0                2m55s   192.168.121.196   username-k8s1-node0    <none>           <none>
portworx-api-t4lf9                                      1/1     Running   0                2m55s   192.168.121.99    username-k8s1-node1    <none>           <none>
portworx-kvdb-94bpk                                     1/1     Running   0                4s      192.168.121.196   username-k8s1-node0    <none>           <none>
portworx-operator-xxxx-xxxxxxxxxxxxx                    1/1     Running   0                4m1s    10.244.1.99       username-k8s1-node0    <none>           <none>
prometheus-px-prometheus-0                              2/2     Running   0                2m41s   10.244.1.105      username-k8s1-node0    <none>           <none>
px-cluster-1c3edc42-4541-48fc-b173-xxxx-xxxxxxxxxxxxx   2/2     Running   0                2m55s   192.168.121.196   username-k8s1-node0    <none>           <none>
px-cluster-1c3edc42-4541-48fc-b173-xxxx-xxxxxxxxxxxxx   1/2     Running   0                2m55s   192.168.121.99    username-k8s1-node1    <none>           <none>
px-csi-ext-868fcb9fc6-xxxxx                             4/4     Running   0                3m5s    10.244.1.103      username-k8s1-node0    <none>           <none>
px-csi-ext-868fcb9fc6-xxxxx                             4/4     Running   0                3m5s    10.244.1.102      username-k8s1-node0    <none>           <none>
px-csi-ext-868fcb9fc6-xxxxx                             4/4     Running   0                3m5s    10.244.3.107      username-k8s1-node1    <none>           <none>
px-prometheus-operator-59b98b5897-xxxxx                 1/1     Running   0                3m3s    10.244.1.104      username-k8s1-node0    <none>           <none>

Note the name of one of your px-cluster pods. You'll run pxctl commands from these pods in following steps.

Verify Portworx cluster status​

You can find the status of the Portworx cluster by running pxctl status commands from a pod. Enter the following oc exec command, specifying the pod name you retrieved in the previous section:

oc exec px-cluster-1c3edc42-4541-48fc-b173-xxxx-xxxxxxxxxxxxx -n portworx -- /opt/pwx/bin/pxctl status
Defaulted container "portworx" out of: portworx, csi-node-driver-registrar
Status: PX is operational
Telemetry: Disabled or Unhealthy
Metering: Disabled or Unhealthy
License: Trial (expires in 31 days)
Node ID: 788bf810-57c4-4df1-xxxx-xxxxxxxxxxxxx
        IP: 192.168.121.99 
        Local Storage Pool: 1 pool
        POOL    IO_PRIORITY     RAID_LEVEL      USABLE  USED    STATUS  ZONE    REGION
        0       HIGH            raid0           3.0 TiB 10 GiB  Online  default default
        Local Storage Devices: 3 devices
        Device  Path            Media Type              Size            Last-Scan
        0:1     /dev/vdb        STORAGE_MEDIUM_MAGNETIC 1.0 TiB         14 Jul 22 22:03 UTC
        0:2     /dev/vdc        STORAGE_MEDIUM_MAGNETIC 1.0 TiB         14 Jul 22 22:03 UTC
        0:3     /dev/vdd        STORAGE_MEDIUM_MAGNETIC 1.0 TiB         14 Jul 22 22:03 UTC
        * Internal kvdb on this node is sharing this storage device /dev/vdc  to store its data.
        total           -       3.0 TiB
        Cache Devices:
         * No cache devices
Cluster Summary
        Cluster ID: px-cluster-1c3edc42-xxxx-xxxxxxxxxxxxx
        Cluster UUID: 33a82fe9-d93b-435b-xxxx-xxxxxxxxxxxxx
        Scheduler: kubernetes
        Nodes: 2 node(s) with storage (2 online)
        IP              ID                                      SchedulerNodeName       Auth            StorageNode     Used    Capacity        Status  StorageStatus       Version         Kernel                  OS
        192.168.121.196 f6d87392-81f4-459a-xxxx-xxxxxxxxxxxxx    username-k8s1-node0      Disabled        Yes             10 GiB  3.0 TiB         Online  Up 2.11.0-81faacc   3.10.0-1127.el7.x86_64  CentOS Linux 7 (Core)
        192.168.121.99  788bf810-57c4-4df1-xxxx-xxxxxxxxxxxxx    username-k8s1-node1      Disabled        Yes             10 GiB  3.0 TiB         Online  Up (This node)      2.11.0-81faacc  3.10.0-1127.el7.x86_64  CentOS Linux 7 (Core)
Global Storage Pool
        Total Used      :  20 GiB
        Total Capacity  :  6.0 TiB

The Portworx status will display PX is operational if your cluster is running as intended.

Verify pxctl cluster provision status​

  • Find the storage cluster, the status should show as Online:

    oc -n portworx get storagecluster
    NAME                                              CLUSTER UUID                           STATUS   VERSION   AGE
    px-cluster-1c3edc42-4541-48fc-xxxx-xxxxxxxxxxxxx   33a82fe9-d93b-435b-xxxx-xxxxxxxxxxxx   Online   2.11.0    10m

  • Find the storage nodes, the statuses should show as Online:

    oc -n portworx get storagenodes
    NAME                  ID                                      STATUS   VERSION          AGE
    username-k8s1-node0   f6d87392-81f4-459a-xxxx-xxxxxxxxxxxxx   Online   2.11.0-81faacc   11m
    username-k8s1-node1   788bf810-57c4-4df1-xxxx-xxxxxxxxxxxxx   Online   2.11.0-81faacc   11m

  • Verify the Portworx cluster provision status . Enter the following oc exec command, specifying the pod name you retrieved in the previous section:

    oc exec px-cluster-1c3edc42-4541-48fc-b173-xxxx-xxxxxxxxxxxxx -n portworx -- /opt/pwx/bin/pxctl cluster provision-status
    Defaulted container "portworx" out of: portworx, csi-node-driver-registrar
    NODE                                    NODE STATUS     POOL                                            POOL STATUS     IO_PRIORITY     SIZE    AVAILABLE   USED   PROVISIONED          ZONE    REGION  RACK
    788bf810-57c4-4df1-xxxx-xxxxxxxxxxxx    Up              0 ( 96e7ff01-fcff-4715-xxxx-xxxxxxxxxxxx )      Online          HIGH            3.0 TiB 3.0 TiB    10 GiB       0 B             default default default
    f6d87392-81f4-459a-xxxx-xxxxxxxxx       Up              0 ( e06386e7-b769-xxxx-xxxxxxxxxxxxx )          Online          HIGH            3.0 TiB 3.0 TiB    10 GiB       0 B             default default default

Create your first PVC​

For your apps to use persistent volumes powered by Portworx, you must use a StorageClass that references Portworx as the provisioner. Portworx includes a number of default StorageClasses, which you can reference with PersistentVolumeClaims (PVCs) you create. For a more general overview of how storage works within Kubernetes, refer to the Persistent Volumes section of the Kubernetes documentation.

Perform the following steps to create a PVC:

  1. Create a PVC referencing the px-csi-db default StorageClass and save the file:

    kind: PersistentVolumeClaim
    apiVersion: v1
    metadata:
        name: px-check-pvc
    spec:
        storageClassName: px-csi-db
        accessModes:
            - ReadWriteOnce
        resources:
            requests:
                storage: 2Gi

  2. Run the oc apply command to create a PVC:

    oc apply -f <your-pvc-name>.yaml
    persistentvolumeclaim/px-check-pvc created

Verify your StorageClass and PVC​

  1. Enter the following oc get storageclass command, specify the name of the StorageClass you created in the steps above:

    oc get storageclass <your-storageclass-name>
    NAME                   PROVISIONER        RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
    px-csi-db              pxd.portworx.com   Delete          Immediate           false                  24m

    oc will return details about your storageClass if it was created correctly. Verify the configuration details appear as you intended.

  2. Enter the oc get pvc command, if this is the only StorageClass and PVC you've created, you should see only one entry in the output:

    oc get pvc <your-pvc-name>
    NAME          STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS           AGE
    px-check-pvc  Bound    pvc-dce346e8-ff02-4dfb-xxxx-xxxxxxxxxxxxx   2Gi        RWO            example-storageclass   3m7s

    oc will return details about your PVC if it was created correctly. Verify the configuration details appear as you intended.

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