Golang flavors.ListDetail函數代碼示例

func TestListFlavors(t *testing.T) {
	client, err := newClient()
	if err != nil {
		t.Fatalf("Unable to create a compute client: %v", err)
	}

	t.Logf("ID\tRegion\tName\tStatus\tCreated")

	pager := flavors.ListDetail(client, nil)
	count, pages := 0, 0
	pager.EachPage(func(page pagination.Page) (bool, error) {
		t.Logf("---")
		pages++
		flavors, err := flavors.ExtractFlavors(page)
		if err != nil {
			return false, err
		}

		for _, f := range flavors {
			t.Logf("%s\t%s\t%d\t%d\t%d", f.ID, f.Name, f.RAM, f.Disk, f.VCPUs)
		}

		return true, nil
	})

	t.Logf("--------\n%d flavors listed on %d pages.", count, pages)
}

// Instances returns an implementation of Instances for OpenStack.
func (os *OpenStack) Instances() (cloudprovider.Instances, bool) {
	glog.V(4).Info("openstack.Instances() called")

	if err := openstack.Authenticate(os.provider, os.authOpts); err != nil {
		glog.Warningf("Failed to reauthenticate: %v", err)
		return nil, false
	}

	compute, err := openstack.NewComputeV2(os.provider, gophercloud.EndpointOpts{
		Region: os.region,
	})
	if err != nil {
		glog.Warningf("Failed to find compute endpoint: %v", err)
		return nil, false
	}

	pager := flavors.ListDetail(compute, nil)

	flavor_to_resource := make(map[string]*api.NodeResources)
	err = pager.EachPage(func(page pagination.Page) (bool, error) {
		flavorList, err := flavors.ExtractFlavors(page)
		if err != nil {
			return false, err
		}
		for _, flavor := range flavorList {
			rsrc := api.NodeResources{
				Capacity: api.ResourceList{
					api.ResourceCPU:            *resource.NewQuantity(int64(flavor.VCPUs), resource.DecimalSI),
					api.ResourceMemory:         *resource.NewQuantity(int64(flavor.RAM)*MiB, resource.BinarySI),
					"openstack.org/disk":       *resource.NewQuantity(int64(flavor.Disk)*GB, resource.DecimalSI),
					"openstack.org/rxTxFactor": *resource.NewMilliQuantity(int64(flavor.RxTxFactor)*1000, resource.DecimalSI),
					"openstack.org/swap":       *resource.NewQuantity(int64(flavor.Swap)*MiB, resource.BinarySI),
				},
			}
			flavor_to_resource[flavor.ID] = &rsrc
		}
		return true, nil
	})
	if err != nil {
		glog.Warningf("Failed to find compute flavors: %v", err)
		return nil, false
	}

	glog.V(3).Infof("Found %v compute flavors", len(flavor_to_resource))
	glog.V(1).Info("Claiming to support Instances")

	return &Instances{compute, flavor_to_resource}, true
}

func (c *GenericClient) GetFlavorId(d *Driver) (string, error) {
	pager := flavors.ListDetail(c.Compute, nil)
	flavorId := ""

	err := pager.EachPage(func(page pagination.Page) (bool, error) {
		flavorList, err := flavors.ExtractFlavors(page)
		if err != nil {
			return false, err
		}

		for _, f := range flavorList {
			if f.Name == d.FlavorName {
				flavorId = f.ID
				return false, nil
			}
		}

		return true, nil
	})

	return flavorId, err
}

func getFlavorID(client *gophercloud.ServiceClient, d *schema.ResourceData) (string, error) {
	flavorId := d.Get("flavor_id").(string)

	if flavorId != "" {
		return flavorId, nil
	}

	flavorCount := 0
	flavorName := d.Get("flavor_name").(string)
	if flavorName != "" {
		pager := flavors.ListDetail(client, nil)
		pager.EachPage(func(page pagination.Page) (bool, error) {
			flavorList, err := flavors.ExtractFlavors(page)
			if err != nil {
				return false, err
			}

			for _, f := range flavorList {
				if f.Name == flavorName {
					flavorCount++
					flavorId = f.ID
				}
			}
			return true, nil
		})

		switch flavorCount {
		case 0:
			return "", fmt.Errorf("Unable to find flavor: %s", flavorName)
		case 1:
			return flavorId, nil
		default:
			return "", fmt.Errorf("Found %d flavors matching %s", flavorCount, flavorName)
		}
	}
	return "", fmt.Errorf("Neither a flavor ID nor a flavor name were able to be determined.")
}

func main() {
	// step-1
	var authUsername string = "your_auth_username"
	var authPassword string = "your_auth_password"
	var authUrl string = "http://controller:5000"
	var projectName string = "your_project_id"
	var regionName string = "your_region_name"

	authOpts := gophercloud.AuthOptions{
		IdentityEndpoint: authUrl,
		Username:         authUsername,
		Password:         authPassword,
		TenantID:         projectName,
	}
	provider, _ := openstack.AuthenticatedClient(authOpts)
	client, _ := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
		Region: regionName,
	})

	// step-2
	pager := images.ListDetail(client, images.ListOpts{})
	page, _ := pager.AllPages()
	imageList, _ := images.ExtractImages(page)
	fmt.Println(imageList)

	// step-3
	pager = flavors.ListDetail(client, flavors.ListOpts{})
	page, _ = pager.AllPages()
	flavorList, _ := flavors.ExtractFlavors(page)
	fmt.Println(flavorList)

	// step-4
	imageID := "74e6d1ec-9a08-444c-8518-4f232446386d"
	image, _ := images.Get(client, imageID).Extract()
	fmt.Println(image)

	// step-5
	flavorID := "1"
	flavor, _ := flavors.Get(client, flavorID).Extract()
	fmt.Println(flavor)

	// step-6
	instanceName := "testing"
	testingInstance, _ := servers.Create(client, servers.CreateOpts{
		Name:      instanceName,
		ImageRef:  imageID,
		FlavorRef: flavorID,
	}).Extract()
	fmt.Println(testingInstance)

	// step-7
	pager = servers.List(client, servers.ListOpts{})
	page, _ = pager.AllPages()
	serverList, _ := servers.ExtractServers(page)
	fmt.Println(serverList)

	// step-8
	servers.Delete(client, testingInstance.ID)

	// step-9
	fmt.Println("Checking for existing SSH key pair...")
	keyPairName := "demokey"
	pubKeyFile := "~/.ssh/id_rsa.pub"
	keyPairExists := false

	pager = keypairs.List(client)
	page, _ = pager.AllPages()
	keypairList, _ := keypairs.ExtractKeyPairs(page)
	for _, k := range keypairList {
		if k.Name == keyPairName {
			keyPairExists = true
			break
		}
	}

	if keyPairExists {
		fmt.Println("Keypair " + keyPairName + " already exists. Skipping import.")
	} else {
		fmt.Println("adding keypair...")
		bs, _ := ioutil.ReadFile(pubKeyFile)
		keypairs.Create(client, keypairs.CreateOpts{
			Name:      keyPairName,
			PublicKey: string(bs),
		}).Extract()
	}

	pager = keypairs.List(client)
	page, _ = pager.AllPages()
	keypairList, _ = keypairs.ExtractKeyPairs(page)
	fmt.Println(keypairList)

	// step-10
	fmt.Println("Checking for existing security group...")
	var allInOneSecurityGroup secgroups.SecurityGroup
	securityGroupName := "all-in-one"
	securityGroupExists := false

	pager = secgroups.List(client)
	page, _ = pager.AllPages()
	secgroupList, _ := secgroups.ExtractSecurityGroups(page)
//.........這裏部分代碼省略.........

// ListDetail enumerates the server images available to your account.
func ListDetail(client *gophercloud.ServiceClient, opts os.ListOptsBuilder) pagination.Pager {
	return os.ListDetail(client, opts)
}