Gophercloud examples

README.md

Gophercloud examples

A series of examples of Gophercloud usage.

Refer to https://that.guru/blog/gophercloud-hello-world/ for more information.

create-fip.go

package main

import (
	"os"

	"github.com/gophercloud/gophercloud/openstack/networking/v2/extensions/layer3/floatingips"
	"github.com/gophercloud/gophercloud/openstack/networking/v2/networks"
	"github.com/gophercloud/utils/openstack/clientconfig"
)

func main() {
	if len(os.Args) != 2 {
		fmt.Println("usage: create-fip <NETWORK>")
		return
	}

	network := os.Args[1]

	opts := new(clientconfig.ClientOpts)
	// We could configure the cloud manually but we don't. Instead we'll leave it unset causing gophercloud to load the
	// cloud from the 'OS_CLOUD' environment variable. We could also simplify this further and pass 'nil' below instead
	// of generating and passing a 'ClientOpts' object but this shows how you _could_ configure things if you so chose.
	// opts.Cloud = "devstack-admin"

	client, err := clientconfig.NewServiceClient("network", opts)
	if err != nil {
		fmt.Println(err)
		return
	}

	pager, err := networks.List(client, networks.ListOpts{
		Name: network,
	}).AllPages()
	if err != nil {
		fmt.Println(err)
		return
	}

	networks, err := networks.ExtractNetworks(pager)
	if err != nil {
		fmt.Println(err)
		return
	}

	if len(networks) > 1 {
		fmt.Println("Found more than one match!")
		return
	}

	if len(networks) < 1 {
		fmt.Println("Found no matches!")
		return
	}

	floatingIP, err := floatingips.Create(client, floatingips.CreateOpts{
		Description: "stephenfin hello-world FIP",
		FloatingNetworkID: networks[0].ID,
	}).Extract()
	if err != nil {
		fmt.Println(err)
		return
	}

	fmt.Println("Created FIP")
	fmt.Printf("floating IP: id=%s, tags=%s\n", floatingIP.ID, floatingIP.Tags)

	tag := fmt.Sprintf("fooBar=%s", "wow")
	err = attributestags.Add(client, "floatingips", floatingIP.ID, tag).ExtractErr()
	if err != nil {
		fmt.Println(err)
		return
	}

	floatingIP, err = floatingips.Get(client, floatingIP.ID).Extract()
	if err != nil {
		fmt.Println(err)
		return
	}

	fmt.Println("Tagged FIP")
	fmt.Printf("floating IP: id=%s, tags=%s\n", floatingIP.ID, floatingIP.Tags)

	err = floatingips.Delete(client, floatingIP.ID).ExtractErr()
	if err != nil {
		fmt.Println(err)
		return
	}

	fmt.Println("Deleted FIP")
}