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package openstack
import (
"crypto/tls"
"fmt"
"net/http"
"time"
"github.com/docker/machine/libmachine/log"
"github.com/docker/machine/libmachine/mcnutils"
"github.com/docker/machine/libmachine/version"
"github.com/rackspace/gophercloud"
"github.com/rackspace/gophercloud/openstack"
compute_ips "github.com/rackspace/gophercloud/openstack/compute/v2/extensions/floatingip"
"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/keypairs"
"github.com/rackspace/gophercloud/openstack/compute/v2/extensions/startstop"
"github.com/rackspace/gophercloud/openstack/compute/v2/flavors"
"github.com/rackspace/gophercloud/openstack/compute/v2/images"
"github.com/rackspace/gophercloud/openstack/compute/v2/servers"
"github.com/rackspace/gophercloud/openstack/identity/v2/tenants"
"github.com/rackspace/gophercloud/openstack/networking/v2/extensions/layer3/floatingips"
"github.com/rackspace/gophercloud/openstack/networking/v2/networks"
"github.com/rackspace/gophercloud/openstack/networking/v2/ports"
"github.com/rackspace/gophercloud/pagination"
)
type Client interface {
Authenticate(d *Driver) error
InitComputeClient(d *Driver) error
InitIdentityClient(d *Driver) error
InitNetworkClient(d *Driver) error
CreateInstance(d *Driver) (string, error)
GetInstanceState(d *Driver) (string, error)
StartInstance(d *Driver) error
StopInstance(d *Driver) error
RestartInstance(d *Driver) error
DeleteInstance(d *Driver) error
WaitForInstanceStatus(d *Driver, status string) error
GetInstanceIPAddresses(d *Driver) ([]IPAddress, error)
GetPublicKey(keyPairName string) ([]byte, error)
CreateKeyPair(d *Driver, name string, publicKey string) error
DeleteKeyPair(d *Driver, name string) error
GetNetworkID(d *Driver) (string, error)
GetFlavorID(d *Driver) (string, error)
GetImageID(d *Driver) (string, error)
AssignFloatingIP(d *Driver, floatingIP *FloatingIP) error
GetFloatingIPs(d *Driver) ([]FloatingIP, error)
GetFloatingIPPoolID(d *Driver) (string, error)
GetInstancePortID(d *Driver) (string, error)
GetTenantID(d *Driver) (string, error)
}
type GenericClient struct {
Provider *gophercloud.ProviderClient
Compute *gophercloud.ServiceClient
Identity *gophercloud.ServiceClient
Network *gophercloud.ServiceClient
}
func (c *GenericClient) CreateInstance(d *Driver) (string, error) {
serverOpts := servers.CreateOpts{
Name: d.MachineName,
FlavorRef: d.FlavorId,
ImageRef: d.ImageId,
SecurityGroups: d.SecurityGroups,
AvailabilityZone: d.AvailabilityZone,
}
if d.NetworkId != "" {
serverOpts.Networks = []servers.Network{
{
UUID: d.NetworkId,
},
}
}
log.Info("Creating machine...")
server, err := servers.Create(c.Compute, keypairs.CreateOptsExt{
serverOpts,
d.KeyPairName,
}).Extract()
if err != nil {
return "", err
}
return server.ID, nil
}
const (
Floating string = "floating"
Fixed string = "fixed"
)
type IPAddress struct {
Network string
AddressType string
Address string
Version int
Mac string
}
type FloatingIP struct {
Id string
Ip string
NetworkId string
PortId string
Pool string
MachineId string
}
func (c *GenericClient) GetInstanceState(d *Driver) (string, error) {
server, err := c.GetServerDetail(d)
if err != nil {
return "", err
}
return server.Status, nil
}
func (c *GenericClient) StartInstance(d *Driver) error {
if result := startstop.Start(c.Compute, d.MachineId); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) StopInstance(d *Driver) error {
if result := startstop.Stop(c.Compute, d.MachineId); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) RestartInstance(d *Driver) error {
if result := servers.Reboot(c.Compute, d.MachineId, servers.SoftReboot); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) DeleteInstance(d *Driver) error {
if result := servers.Delete(c.Compute, d.MachineId); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) WaitForInstanceStatus(d *Driver, status string) error {
return mcnutils.WaitForSpecificOrError(func() (bool, error) {
current, err := servers.Get(c.Compute, d.MachineId).Extract()
if err != nil {
return true, err
}
if current.Status == "ERROR" {
return true, fmt.Errorf("Instance creation failed. Instance is in ERROR state")
}
if current.Status == status {
return true, nil
}
return false, nil
}, (d.ActiveTimeout / 4), 4*time.Second)
}
func (c *GenericClient) GetInstanceIPAddresses(d *Driver) ([]IPAddress, error) {
server, err := c.GetServerDetail(d)
if err != nil {
return nil, err
}
addresses := []IPAddress{}
for network, networkAddresses := range server.Addresses {
for _, element := range networkAddresses.([]interface{}) {
address := element.(map[string]interface{})
version, ok := address["version"].(float64)
if !ok {
// Assume IPv4 if no version present.
version = 4
}
addr := IPAddress{
Network: network,
AddressType: Fixed,
Address: address["addr"].(string),
Version: int(version),
}
if tp, ok := address["OS-EXT-IPS:type"]; ok {
addr.AddressType = tp.(string)
}
if mac, ok := address["OS-EXT-IPS-MAC:mac_addr"]; ok {
addr.Mac = mac.(string)
}
addresses = append(addresses, addr)
}
}
return addresses, nil
}
func (c *GenericClient) GetNetworkID(d *Driver) (string, error) {
return c.getNetworkID(d, d.NetworkName)
}
func (c *GenericClient) GetFloatingIPPoolID(d *Driver) (string, error) {
return c.getNetworkID(d, d.FloatingIpPool)
}
func (c *GenericClient) getNetworkID(d *Driver, networkName string) (string, error) {
opts := networks.ListOpts{Name: networkName}
pager := networks.List(c.Network, opts)
networkID := ""
err := pager.EachPage(func(page pagination.Page) (bool, error) {
networkList, err := networks.ExtractNetworks(page)
if err != nil {
return false, err
}
for _, n := range networkList {
if n.Name == networkName {
networkID = n.ID
return false, nil
}
}
return true, nil
})
return networkID, err
}
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 (c *GenericClient) GetImageID(d *Driver) (string, error) {
opts := images.ListOpts{Name: d.ImageName}
pager := images.ListDetail(c.Compute, opts)
imageID := ""
err := pager.EachPage(func(page pagination.Page) (bool, error) {
imageList, err := images.ExtractImages(page)
if err != nil {
return false, err
}
for _, i := range imageList {
if i.Name == d.ImageName {
imageID = i.ID
return false, nil
}
}
return true, nil
})
return imageID, err
}
func (c *GenericClient) GetTenantID(d *Driver) (string, error) {
pager := tenants.List(c.Identity, nil)
tenantId := ""
err := pager.EachPage(func(page pagination.Page) (bool, error) {
tenantList, err := tenants.ExtractTenants(page)
if err != nil {
return false, err
}
for _, i := range tenantList {
if i.Name == d.TenantName {
tenantId = i.ID
return false, nil
}
}
return true, nil
})
return tenantId, err
}
func (c *GenericClient) GetPublicKey(keyPairName string) ([]byte, error) {
kp, err := keypairs.Get(c.Compute, keyPairName).Extract()
if err != nil {
return nil, err
}
return []byte(kp.PublicKey), nil
}
func (c *GenericClient) CreateKeyPair(d *Driver, name string, publicKey string) error {
opts := keypairs.CreateOpts{
Name: name,
PublicKey: publicKey,
}
if result := keypairs.Create(c.Compute, opts); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) DeleteKeyPair(d *Driver, name string) error {
if result := keypairs.Delete(c.Compute, name); result.Err != nil {
return result.Err
}
return nil
}
func (c *GenericClient) GetServerDetail(d *Driver) (*servers.Server, error) {
server, err := servers.Get(c.Compute, d.MachineId).Extract()
if err != nil {
return nil, err
}
return server, nil
}
func (c *GenericClient) AssignFloatingIP(d *Driver, floatingIP *FloatingIP) error {
if d.ComputeNetwork {
return c.assignNovaFloatingIP(d, floatingIP)
}
return c.assignNeutronFloatingIP(d, floatingIP)
}
func (c *GenericClient) assignNovaFloatingIP(d *Driver, floatingIP *FloatingIP) error {
if floatingIP.Ip == "" {
f, err := compute_ips.Create(c.Compute, compute_ips.CreateOpts{
Pool: d.FloatingIpPool,
}).Extract()
if err != nil {
return err
}
floatingIP.Ip = f.IP
floatingIP.Pool = f.Pool
}
return compute_ips.Associate(c.Compute, d.MachineId, floatingIP.Ip).Err
}
func (c *GenericClient) assignNeutronFloatingIP(d *Driver, floatingIP *FloatingIP) error {
portID, err := c.GetInstancePortID(d)
if err != nil {
return err
}
if floatingIP.Id == "" {
f, err := floatingips.Create(c.Network, floatingips.CreateOpts{
FloatingNetworkID: d.FloatingIpPoolId,
PortID: portID,
}).Extract()
if err != nil {
return err
}
floatingIP.Id = f.ID
floatingIP.Ip = f.FloatingIP
floatingIP.NetworkId = f.FloatingNetworkID
floatingIP.PortId = f.PortID
return nil
}
_, err = floatingips.Update(c.Network, floatingIP.Id, floatingips.UpdateOpts{
PortID: portID,
}).Extract()
if err != nil {
return err
}
return nil
}
func (c *GenericClient) GetFloatingIPs(d *Driver) ([]FloatingIP, error) {
if d.ComputeNetwork {
return c.getNovaNetworkFloatingIPs(d)
}
return c.getNeutronNetworkFloatingIPs(d)
}
func (c *GenericClient) getNovaNetworkFloatingIPs(d *Driver) ([]FloatingIP, error) {
pager := compute_ips.List(c.Compute)
ips := []FloatingIP{}
err := pager.EachPage(func(page pagination.Page) (continue_paging bool, err error) {
continue_paging, err = true, nil
ipListing, err := compute_ips.ExtractFloatingIPs(page)
for _, ip := range ipListing {
if ip.InstanceID == "" && ip.Pool == d.FloatingIpPool {
ips = append(ips, FloatingIP{
Id: ip.ID,
Ip: ip.IP,
Pool: ip.Pool,
})
}
}
return
})
return ips, err
}
func (c *GenericClient) getNeutronNetworkFloatingIPs(d *Driver) ([]FloatingIP, error) {
log.Debug("Listing floating IPs", map[string]string{
"FloatingNetworkId": d.FloatingIpPoolId,
"TenantID": d.TenantId,
})
pager := floatingips.List(c.Network, floatingips.ListOpts{
FloatingNetworkID: d.FloatingIpPoolId,
TenantID: d.TenantId,
})
ips := []FloatingIP{}
err := pager.EachPage(func(page pagination.Page) (bool, error) {
floatingipList, err := floatingips.ExtractFloatingIPs(page)
if err != nil {
return false, err
}
for _, f := range floatingipList {
ips = append(ips, FloatingIP{
Id: f.ID,
Ip: f.FloatingIP,
NetworkId: f.FloatingNetworkID,
PortId: f.PortID,
})
}
return true, nil
})
if err != nil {
return nil, err
}
return ips, nil
}
func (c *GenericClient) GetInstancePortID(d *Driver) (string, error) {
pager := ports.List(c.Network, ports.ListOpts{
DeviceID: d.MachineId,
NetworkID: d.NetworkId,
})
var portID string
err := pager.EachPage(func(page pagination.Page) (bool, error) {
portList, err := ports.ExtractPorts(page)
if err != nil {
return false, err
}
for _, port := range portList {
portID = port.ID
return false, nil
}
return true, nil
})
if err != nil {
return "", err
}
return portID, nil
}
func (c *GenericClient) InitComputeClient(d *Driver) error {
if c.Compute != nil {
return nil
}
compute, err := openstack.NewComputeV2(c.Provider, gophercloud.EndpointOpts{
Region: d.Region,
Availability: c.getEndpointType(d),
})
if err != nil {
return err
}
c.Compute = compute
return nil
}
func (c *GenericClient) InitIdentityClient(d *Driver) error {
if c.Identity != nil {
return nil
}
identity := openstack.NewIdentityV2(c.Provider)
c.Identity = identity
return nil
}
func (c *GenericClient) InitNetworkClient(d *Driver) error {
if c.Network != nil {
return nil
}
network, err := openstack.NewNetworkV2(c.Provider, gophercloud.EndpointOpts{
Region: d.Region,
Availability: c.getEndpointType(d),
})
if err != nil {
return err
}
c.Network = network
return nil
}
func (c *GenericClient) getEndpointType(d *Driver) gophercloud.Availability {
switch d.EndpointType {
case "internalURL":
return gophercloud.AvailabilityInternal
case "adminURL":
return gophercloud.AvailabilityAdmin
}
return gophercloud.AvailabilityPublic
}
func (c *GenericClient) Authenticate(d *Driver) error {
if c.Provider != nil {
return nil
}
log.Debug("Authenticating...", map[string]interface{}{
"AuthUrl": d.AuthUrl,
"Insecure": d.Insecure,
"DomainID": d.DomainID,
"DomainName": d.DomainName,
"Username": d.Username,
"TenantName": d.TenantName,
"TenantID": d.TenantId,
})
opts := gophercloud.AuthOptions{
IdentityEndpoint: d.AuthUrl,
DomainID: d.DomainID,
DomainName: d.DomainName,
Username: d.Username,
Password: d.Password,
TenantName: d.TenantName,
TenantID: d.TenantId,
AllowReauth: true,
}
provider, err := openstack.NewClient(opts.IdentityEndpoint)
if err != nil {
return err
}
provider.UserAgent.Prepend(fmt.Sprintf("docker-machine/v%d", version.APIVersion))
if d.Insecure {
// Configure custom TLS settings.
config := &tls.Config{InsecureSkipVerify: true}
transport := &http.Transport{TLSClientConfig: config}
provider.HTTPClient.Transport = transport
}
err = openstack.Authenticate(provider, opts)
if err != nil {
return err
}
c.Provider = provider
return nil
}