First steps using Gophercloud to interact with OpenStack Swift API

gophercloud-swift-getting-started.go

package main

import (
	"bufio"
	"log"
	"os"

	"github.com/gophercloud/gophercloud"
	"github.com/gophercloud/gophercloud/openstack"
	"github.com/gophercloud/gophercloud/openstack/objectstorage/v1/containers"
	"github.com/gophercloud/gophercloud/openstack/objectstorage/v1/objects"
)

func main() {

	// Get OpenStack auth values from environment
	authOpts, err := openstack.AuthOptionsFromEnv()
	if err != nil {
		log.Println(err)
		return
	}

	// Autenticate into OpenStack
	provider, err := openstack.AuthenticatedClient(authOpts)
	if err != nil {
		log.Println(err)
		return
	}

	// Create the service client for interact with swift
	var regionName = os.Getenv("OS_REGION_NAME")
	objectClient, err := openstack.NewObjectStorageV1(provider, gophercloud.EndpointOpts{
		Region: regionName,
	})
	if err != nil {
		log.Println(err)
		return
	}

	// Create a storage container
	log.Println("Creating a container...")
	containerName := "gophercloud-container"
	containers.Create(objectClient, containerName, nil)

	// Upload an image to the cloud
	filePath := "pics/logo.png"
	objectName := "gophercloud amazing logo"

	f, _ := os.Open(filePath)
	defer f.Close()
	reader := bufio.NewReader(f)

	options := objects.CreateOpts{
		Content: reader,
	}

	log.Println("Uploading a image using the object storage service...")
	objects.Create(objectClient, containerName, objectName, options)

}