go-purestorage

PuGo - A Go REST client for Pure Storage

This library is designed to provide a simple interface for issuing commands to a Pure Storage FlashArray using a REST API. It communicates with the array using the golang http library, and returns the data into types defined within the library.

This is not designed to be a standalone program. It is just meant to provide functions and communication within another program.

Table of Contents

• Requirements
• Capabilities
• Installation
• Testing
• Documentation
  • FlashArray
    • Client
    • Array
    • Volume
  • Pure1
    • Authentication
  • Client
  • Array

Requirements

You should have a working Go environment setup. If not check out the Go getting started guide.

Capabilities

FlashArray

The FlashArray library contains all functionality provided by version 1.16 of the Purity//FA REST API.

Note that different versions of the REST API offer different functionality, and some operations may be unusable except on certain versions of the REST API. For example, functionality relating to FlashRecover and protection groups (pgroups) requires the use of REST API version 1.2, which is supported only by Purity versions 4.0 and later.

Pure1

The pure1 library contains all functionality provided by version 1.0 of the Pure1 REST API.

Installation

FlashArray

$ go get github.com/devans10/go-purestorage/flasharray

Pure1

$ go get github.com/devans/go-purestorage/pure1

Testing

Run unit tests

$ make test

To Run Acceptance tests

$ make testacc

These tests require a connection to a Pure FlashArray. They will require environment variables are set for PURE_TARGET and PURE_APITOKEN or PURE_USERNAME and PURE_PASSWORD

The Pure1 tests require a connection to Pure1. They will require environment variables set for PURE1_APPID and PURE1_PRIVATEKEY

Documentation

FlashArray

https://godoc.org/github.com/devans10/pugo/flasharray

flasharray.Client

Create a client to connect to the FlashArray

import (
	"fmt"
	"github.com/devans10/pugo/flasharray"
)

client := flasharray.Client{Target: "flasharray.example.com", Username: "pureuser", Password: "password", APIToken: nil, RestVersion: nil, UserAgent: nil, RequestKwargs: nil}

flasharray.Array

Get the array status

array, _ := client.Array.Get(nil)
fmt.Printf("Array Name: %s", array.ArrayName)
fmt.Printf("ID: %s", array.Id)

flasharray.Volume

Create a new volume

volume, _ := client.Volumes.CreateVolume("testvol", 1024000000)
fmt.Printf("Name: %s, Size: %d", volume.Name, volume.Size)

Clone a volume

volume, _ = client.Volumes.CopyVolume("testclone", "testvol")
fmt.Printf("Name: %s, Source: %d", volume.Name, volume.Source)

Get a volume

volume, _ = client.Volumes.GetVolume("testclone", nil)
fmt.Printf("Name: %s, Size: %d", volume.Name, volume.Size)

Create a snapshot

snapshot, _ := client.Volumes.CreateSnapshot("testvolume", "test")

List Volumes

for _, vol := range client.Volumes.ListVolumes(nil) {
	fmt.Printf("Volume Name: %s", vol.Name
}

Pure1

https://godoc.org/github.com/devans10/pugo/pure1

Authentication

The Pure1 REST API authentication requires a public and private certificate. A certificate can be created using openssl:

$ openssl genrsa -aes256 -out private.pem 2048

From that cert, you can create a public cert:

$ openssl rsa -in private.pem -outform PEM -pubout -out public.pem

Next, you will need to create a API registration on the Pure1 Manage site. You will need to be an administrator to complete this.

1. Login to https://pure1.purestorage.com
2. Go to Administration -> API Registration
3. Click "+ Register Application"
4. Give your application a name, and paste the contents of the public.pem created above.
5. the "Application ID" that is generated will be used to authenticate the client.

pure1.Client

To create a client connection, the Application ID, byte slice of the private key contents and the rest version need to be passed. In the example below, I have exported the contents of the private.pem and the Application ID to envrionment variables.

Create a client to connect to Pure1

import (
	"fmt"
	"os"
	"github.com/devans10/pugo/pure1"
)

appID := os.Getenv("PURE1_APPID")
privateKey := []byte(os.Getenv("PURE1_PRIVATEKEY"))
restVersion := ""

client := pure1.NewClient(appID, privateKey, restVersion)

pure1.Array

Get a list of FlashArray and FlashBlade objects

array, _ := client.Array.GetArray(nil)
fmt.Println("ID: ", array.ID)
fmt.Println("Name: ", array.Name)
fmt.Println("Model: ", array.Model)
fmt.Println("OS: ", array.OS)
fmt.Println("Version: ", array.Version)
fmt.Println("AsOf: ", array.AsOf)