Pure Service Orchestrator (PSO) CSI Driver

!!NOTICE!! - PSO is going to be EOL July 31, 2022. New customers should start with Portworx.

Using Google Anthos or OpenShift 3.11? Please use PSO 5.x instead

What is PSO?

Pure Service Orchestrator (PSO) delivers storage-as-a-service for containers, giving developers the agility of public cloud with the reliability and security of on-premises infrastructure.

Smart Provisioning
PSO automatically makes the best provisioning decision for each storage request – in real-time – by assessing multiple factors such as performance load, the capacity and health of your arrays, and policy tags.

Elastic Scaling
Uniting all your Pure FlashArray™ and FlashBlade™ arrays on a single shared infrastructure, and supporting file and block as needed, PSO makes adding new arrays effortless, so you can scale as your environment grows.

Transparent Recovery
To ensure your services stay robust, PSO self-heals – so you’re protected against data corruption caused by issues such as node failure, array performance limits, and low disk space.

Feature List

Software Pre-Requisites

PLEASE READ THROUGH ALL OF THESE! Some of these requirements have changed since PSO 5.x, and not following them will result in a non-functional plugin installation.

• Operating Systems Supported*:

  • CentOS 7
  • Red Hat CoreOS 4.4+
  • RHEL 7
  • Ubuntu 16.04
  • Ubuntu 18.04
  • Ubuntu 20.04

• Environments Supported*:

  • Kubernetes 1.17-1.21
    • Note: For version less than 1.17.6/1.18.6 please refer to this issue using vxlan with Flannel or Calico
  • Minimum Helm version required is 3.1.0.
  • Amazon EKS 1.17.6
  • Anthos Bare-Metal 1.6
  • OpenShift 4.4+
    • Note: Please read and action these pre-requisites for OpenShift deployments

• Other software dependencies for all cluster nodes:

  • Latest linux multipath software package for your operating system (Required) user_friendly_names must be set to no if present. Note: Multipath on Amazon EKS
  • Latest external array management library package libstoragemgt_udev (Required) [Red Hat and CentOS only]
    • [Note: ensure the second action - CAPACITY_DATA_HAS_CHANGED - is uncommented and udev service is restarted]
  • Latest Filesystem utilities/drivers (XFS by default, Required)
  • Latest iSCSI initiator software for your operating system (Optional, required for iSCSI connectivity)
  • Latest NFS software package for your operating system (Optional, required for NFS connectivity)
  • Latest FC initiator software for your operating system (Optional, required for FC connectivity, FC Supported on Bare-metal K8s installations only)
  • Latest NVMe initiator software for your operating system (Optional, required for NVMe connectivity, NVMe Supported on Bare-metal K8s installations only), check here for more details
  • Ensure that IPv4 forwarding is enabled to allow inter-node communication. See here for more details. This is important in Rancher deployments
  • An NTP implementation (such as ntpd or chronyd) is installed and running on all Kubernetes cluster nodes
  • All backend arrays accessed by PSO must sync to the same time source as the rest of the Kubernetes cluster.
  • Minimum 3+ nodes for database, recommended 5+ (Other workloads can use these nodes as well, they do not have to be dedicated)
  • File system utilities required to support GetNodeVolumeStats functionality.

• FlashArray and FlashBlade:

  • The FlashArray and/or FlashBlade should be connected to the worker nodes using Pure's best practices

• FlashArray User Privileges

  • It is recommend to use a specific FlashArray user, and associated API token, for PSO access control to enable easier array auditing.
  • The PSO user can be local or based on a Directory Service controlled account (assuming DS is configured on the array).
  • The PSO user requires a minimum role level of storage_admin.

• FlashBlade User Privileges

  • If the FlashBlade is configured to use Directory Services for array management, then a DS controlled account and its associated API token can be used for PSO.
  • The PSO user requires a minimum array management role level of storage_admin.
  • Currently there is no option to create additional local users on a FlashBlade.

* Please see release notes for details

Hardware Pre-Requisites

PSO can be used with any of the following hardware appliances and associated minimum version of appliance code:

• Pure Storage FlashArray (minimum Purity code version 4.8)
  • minimum Purity v5.3.0 required to support the Storage QoS featureset
• Pure Storage FlashBlade (minimum Purity version 2.2.0)

Helm

If your Kubernetes deployment does not include Helm3 by default, then refer to the Helm Installation documentation.

PSO Helm Chart

The pure-pso helm chart deploys PSO CSI plugin on your Kubernetes cluster.

Refer to the pure-pso README for the full installation process.

PSO on the Internet

Check out a list of some blogs related to Pure Service Orchestrator

Contributing

The PSO Helm Charts project is issued under the Apache 2.0 license. We accept contributions via GitHub pull requests.

Report a Bug

For filing bugs, suggesting improvements, or requesting new features, please open an issue. For bugs, please run this script to collect all logs and send to [email protected] along with the issue ID.