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Version: 3.1

Install Portworx on Google Kubernetes Engine

This document provides instructions for installing Portworx with Google Kubernetes Engine (GKE).

Prerequisites

Before installing Portworx Enterprise, make sure that you meets the following requirements:

  • Environment requirements:
    • Image type: Only GKE clusters provisioned on Ubuntu Node Images support Portworx. You must specify the Ubuntu node image when you create clusters.
    • Resource requirements:
      • A GCP GKE cluster that meets the prerequisites. Your machine-type must meet the hardware requirements defined in the prerequisites.
      • For production environments, Portworx recommends 3 Availability Zones (AZs) with one node per zone
      • Portworx recommends you set Max storage nodes per availability zone, Portworx will ensure that many storage nodes exist in the zone
      • Portworx recommends creating a zonal cluster. For instructions on creating a cluster, refer to the GCP documentation.
      • Supported disk types
  • Permissions: Portworx requires access to the Google Cloud APIs to provision & manage disks. Make sure that the user or service account creating the GKE cluster has the following roles:
    • Compute Admin
    • Service Account User
    • Kubernetes Engine Cluster Viewer

Provide permissions to Portworx

Portworx requires a ClusterRoleBinding for your user to deploy the specs. Create a ClusterRoleBinding using the following kubectl command:

kubectl create clusterrolebinding myname-cluster-admin-binding \
--clusterrole=cluster-admin --user=`gcloud info --format='value(config.account)'`

Install Portworx

note

Portworx gets its storage capacity from the block storage mounted in the nodes and aggregates the capacity across all the nodes. This way, it creates a global storage pool. In this example, Portworx uses Persistent Disks (PD) as that block storage, where Portworx adds PDs automatically as the Kubernetes scales-out and removes PDs as nodes exit the cluster or get replaced.

Generate the specs

To install Portworx with Kubernetes, you must generate Kubernetes manifests that you will deploy in your cluster.

Navigate to Portworx Central and log in, or create an account, then follow the process to generate a spec.

Deploy the Operator

To deploy the Operator, run the command that Portworx Central provided, which looks similar to the following:

kubectl apply -f 'https://install.portworx.com/<version-number>?comp=pxoperator'
serviceaccount/portworx-operator created
podsecuritypolicy.policy/px-operator created
clusterrole.rbac.authorization.k8s.io/portworx-operator created
clusterrolebinding.rbac.authorization.k8s.io/portworx-operator created
deployment.apps/portworx-operator created

Deploy the StorageCluster

To deploy the StorageCluster, use one of the following methods.

  • If you are not enabling GCP cloud drive encryption using your own key, run the command that Portworx Central provided, which looks similar to the following:

    kubectl apply -f 'https://install.portworx.com/<portworx-version>?operator=true&mc=false&b=true&kd=type%3Dpd-standard%2Csize%3D150&s=%22type%3Dpd-standard%2Csize%3D150%22&c=px-cluster-c5d0f3c4-8344-46b0-95cd-f0a8fba93736&gke=true&stork=true&csi=true&mon=true&tel=false&st=k8s&promop=true'
    storagecluster.core.libopenstorage.org/px-cluster-0d8dad46-f9fd-4945-b4ac-8dfd338e915b created
  • If you want to enable GCP cloud drive encryption using your own key, perform the following steps:

    1. Follow the steps in Create a disk encryption key, then return to this page.

    2. Follow the steps in Create and configure a KMS service account, then return to this page.

    3. Download the spec that you generated in Portworx Central.

    4. In the StorageCluster spec that you downloaded, specify your KMS key in front of every cloud drive as follows:

      cloudStorage:
      deviceSpecs:
      - type=pd-standard,size=150,kms=<kms-key>,kmsAccount=<kmsServiceAccount>

      Where:

      • <kms-key> is the key resource name in the following format:

        projects/<projectName>/locations/<region>/keyRings/<keyRing>/cryptoKeys/<keyName>
      • <kmsServiceAccount> is the name of the new service account that you created, in the following format:

        <serviceAccountName>@<project>.iam.gserviceaccount.com
    5. Apply the modified spec:

      kubectl apply -f <spec-file.yaml>
      storagecluster.core.libopenstorage.org/px-cluster-0d8dad46-f9fd-4945-b4ac-8dfd338e915b created

Verify your Portworx installation

Once you've installed Portworx, you can perform the following tasks to verify that Portworx has installed correctly.

Verify if all pods are running

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

kubectl get pods -n <px-namespace> -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-api-dvw64 1/1 Running 0 2m55s 192.168.121.99 username-k8s1-node2 <none> <none>
portworx-kvdb-94bpk 1/1 Running 0 4s 192.168.121.196 username-k8s1-node0 <none> <none>
portworx-kvdb-8b67l 1/1 Running 0 10s 192.168.121.196 username-k8s1-node1 <none> <none>
portworx-kvdb-fj72p 1/1 Running 0 30s 192.168.121.196 username-k8s1-node2 <none> <none>
portworx-operator-58967ddd6d-kmz6c 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-b173-3e9bf3cd834d-9gs79 2/2 Running 0 2m55s 192.168.121.196 username-k8s1-node0 <none> <none>
px-cluster-1c3edc42-4541-48fc-b173-3e9bf3cd834d-vpptx 2/2 Running 0 2m55s 192.168.121.99 username-k8s1-node1 <none> <none>
px-cluster-1c3edc42-4541-48fc-b173-3e9bf3cd834d-bxmpn 2/2 Running 0 2m55s 192.168.121.191 username-k8s1-node2 <none> <none>
px-csi-ext-868fcb9fc6-54bmc 4/4 Running 0 3m5s 10.244.1.103 username-k8s1-node0 <none> <none>
px-csi-ext-868fcb9fc6-8tk79 4/4 Running 0 3m5s 10.244.1.102 username-k8s1-node2 <none> <none>
px-csi-ext-868fcb9fc6-vbqzk 4/4 Running 0 3m5s 10.244.3.107 username-k8s1-node1 <none> <none>
px-prometheus-operator-59b98b5897-9nwfv 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 kubectl exec command, specifying the pod name you retrieved in the previous section:

kubectl exec <pod-name> -n <px-namespace> -- /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: 788bf810-57c4-4df1-9a5a-70c31d0f478e
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-1c3edc42-4541-48fc-b173-3e9bf3cd834d
Cluster UUID: 33a82fe9-d93b-435b-943e-6f3fd5522eae
Scheduler: kubernetes
Nodes: 3 node(s) with storage (3 online)
IP ID SchedulerNodeName Auth StorageNode Used Capacity Status StorageStatus Version Kernel OS
192.168.121.196 f6d87392-81f4-459a-b3d4-fad8c65b8edc 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 788bf810-57c4-4df1-9a5a-70c31d0f478e 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)
192.168.121.191 a8c76018-43d7-4a58-3d7b-19d45b4c541a username-k8s1-node2 Disabled Yes 10 GiB 3.0 TiB Online Up 2.11.0-81faacc 3.10.0-1127.el7.x86_64 CentOS Linux 7 (Core)
Global Storage Pool
Total Used : 30 GiB
Total Capacity : 9.0 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:

    kubectl -n <px-namespace> get storagecluster
    NAME                                              CLUSTER UUID                           STATUS   VERSION   AGE
    px-cluster-1c3edc42-4541-48fc-b173-3e9bf3cd834d 33a82fe9-d93b-435b-943e-6f3fd5522eae Online 2.11.0 10m
  • Find the storage nodes, the statuses should show as Online:

    kubectl -n <px-namespace> get storagenodes
    NAME                  ID                                     STATUS   VERSION          AGE
    username-k8s1-node0 f6d87392-81f4-459a-b3d4-fad8c65b8edc Online 2.11.0-81faacc 11m
    username-k8s1-node1 788bf810-57c4-4df1-9a5a-70c31d0f478e Online 2.11.0-81faacc 11m
    username-k8s1-node2 a8c76018-43d7-4a58-3d7b-19d45b4c541a Online 2.11.0-81faacc 11m
  • Verify the Portworx cluster provision status. Enter the following kubectl exec command, specifying the pod name you retrieved in the previous section:

    kubectl exec <pod-name> -n <px-namespace> -- /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
    788bf810-57c4-4df1-9a5a-70c31d0f478e Up 0 ( 96e7ff01-fcff-4715-b61b-4d74ecc7e159 ) Online HIGH 3.0 TiB 3.0 TiB 10 GiB 0 B default default default
    f6d87392-81f4-459a-b3d4-fad8c65b8edc Up 0 ( e06386e7-b769-4ce0-b674-97e4359e57c0 ) Online HIGH 3.0 TiB 3.0 TiB 10 GiB 0 B default default default
    a8c76018-43d7-4a58-3d7b-19d45b4c541a Up 0 ( a2e0af91-bb02-1574-611b-8904cab0e019 ) 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 kubectl apply command to create a PVC:

    kubectl apply -f <your-pvc-name>.yaml
    persistentvolumeclaim/example-pvc created

Verify your StorageClass and PVC

  1. Enter the kubectl get storageclass command:

    kubectl get storageclass
    NAME                                 PROVISIONER                     RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
    px-csi-db pxd.portworx.com Delete Immediate true 43d
    px-csi-db-cloud-snapshot pxd.portworx.com Delete Immediate true 43d
    px-csi-db-cloud-snapshot-encrypted pxd.portworx.com Delete Immediate true 43d
    px-csi-db-encrypted pxd.portworx.com Delete Immediate true 43d
    px-csi-db-local-snapshot pxd.portworx.com Delete Immediate true 43d
    px-csi-db-local-snapshot-encrypted pxd.portworx.com Delete Immediate true 43d
    px-csi-replicated pxd.portworx.com Delete Immediate true 43d
    px-csi-replicated-encrypted pxd.portworx.com Delete Immediate true 43d
    px-db kubernetes.io/portworx-volume Delete Immediate true 43d
    px-db-cloud-snapshot kubernetes.io/portworx-volume Delete Immediate true 43d
    px-db-cloud-snapshot-encrypted kubernetes.io/portworx-volume Delete Immediate true 43d
    px-db-encrypted kubernetes.io/portworx-volume Delete Immediate true 43d
    px-db-local-snapshot kubernetes.io/portworx-volume Delete Immediate true 43d
    px-db-local-snapshot-encrypted kubernetes.io/portworx-volume Delete Immediate true 43d
    px-replicated kubernetes.io/portworx-volume Delete Immediate true 43d
    px-replicated-encrypted kubernetes.io/portworx-volume Delete Immediate true 43d
    stork-snapshot-sc stork-snapshot Delete Immediate true 43d

    kubectl returns details about the StorageClasses available to you. Verify that px-csi-db appears in the list.

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

    kubectl get pvc <your-pvc-name>
    NAME          STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS           AGE
    example-pvc Bound pvc-dce346e8-ff02-4dfb-935c-2377767c8ce0 2Gi RWO example-storageclass 3m7s

    kubectl returns details about your PVC if it was created correctly. Verify that the configuration details appear as you intended.

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