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rackspace.go
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rackspace.go
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package rackspace
import (
"fmt"
"github.com/docker/machine/drivers/openstack"
"github.com/docker/machine/libmachine/drivers"
"github.com/docker/machine/libmachine/log"
"github.com/docker/machine/libmachine/mcnflag"
)
// Driver is a machine driver for Rackspace. It's a specialization of the generic OpenStack one.
type Driver struct {
*openstack.Driver
APIKey string
}
const (
defaultRegionName = "IAD"
defaultEndpointType = "publicURL"
defaultFlavorID = "general1-1"
defaultSSHUser = "root"
defaultSSHPort = 22
defaultDockerInstall = "true"
defaultActiveTimeout = 300
)
// GetCreateFlags registers the "machine create" flags recognized by this driver, including
// their help text and defaults.
func (d *Driver) GetCreateFlags() []mcnflag.Flag {
return []mcnflag.Flag{
mcnflag.StringFlag{
EnvVar: "OS_USERNAME",
Name: "rackspace-username",
Usage: "Rackspace account username",
Value: "",
},
mcnflag.StringFlag{
EnvVar: "OS_API_KEY",
Name: "rackspace-api-key",
Usage: "Rackspace API key",
Value: "",
},
mcnflag.StringFlag{
EnvVar: "OS_REGION_NAME",
Name: "rackspace-region",
Usage: "Rackspace region name",
Value: defaultRegionName,
},
mcnflag.StringFlag{
EnvVar: "OS_ENDPOINT_TYPE",
Name: "rackspace-endpoint-type",
Usage: "Rackspace endpoint type (adminURL, internalURL or the default publicURL)",
Value: defaultEndpointType,
},
mcnflag.StringFlag{
EnvVar: "OS_IMAGE_ID",
Name: "rackspace-image-id",
Usage: "Rackspace image ID. Default: Ubuntu 16.04 LTS (Xenial Xerus) (PVHVM)",
},
mcnflag.StringFlag{
EnvVar: "OS_FLAVOR_ID",
Name: "rackspace-flavor-id",
Usage: "Rackspace flavor ID. Default: General Purpose 1GB",
Value: defaultFlavorID,
},
mcnflag.StringFlag{
EnvVar: "OS_SSH_USER",
Name: "rackspace-ssh-user",
Usage: "SSH user for the newly booted machine. Set to root by default",
Value: defaultSSHUser,
},
mcnflag.IntFlag{
EnvVar: "OS_SSH_PORT",
Name: "rackspace-ssh-port",
Usage: "SSH port for the newly booted machine. Set to 22 by default",
Value: defaultSSHPort,
},
mcnflag.StringFlag{
Name: "rackspace-docker-install",
Usage: "Set if docker have to be installed on the machine",
Value: defaultDockerInstall,
},
mcnflag.IntFlag{
EnvVar: "OS_ACTIVE_TIMEOUT",
Name: "rackspace-active-timeout",
Usage: "Rackspace active timeout",
Value: defaultActiveTimeout,
},
}
}
// NewDriver instantiates a Rackspace driver.
func NewDriver(machineName, storePath string) drivers.Driver {
log.Debug("Instantiating Rackspace driver.", map[string]string{"machineName": machineName})
inner := openstack.NewDerivedDriver(machineName, storePath)
driver := &Driver{
Driver: inner,
}
inner.SetClient(&Client{
driver: driver,
})
return driver
}
// DriverName returns the name of the driver
func (d *Driver) DriverName() string {
return "rackspace"
}
func missingEnvOrOption(setting, envVar, opt string) error {
return fmt.Errorf(
"%s must be specified either using the environment variable %s or the CLI option %s",
setting,
envVar,
opt,
)
}
// SetConfigFromFlags assigns and verifies the command-line arguments presented to the driver.
func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
d.ActiveTimeout = flags.Int("rackspace-active-timeout")
d.Username = flags.String("rackspace-username")
d.APIKey = flags.String("rackspace-api-key")
d.Region = flags.String("rackspace-region")
d.EndpointType = flags.String("rackspace-endpoint-type")
d.ImageId = flags.String("rackspace-image-id")
d.FlavorId = flags.String("rackspace-flavor-id")
d.SSHUser = flags.String("rackspace-ssh-user")
d.SSHPort = flags.Int("rackspace-ssh-port")
d.SetSwarmConfigFromFlags(flags)
if d.Region == "" {
return missingEnvOrOption("Region", "OS_REGION_NAME", "--rackspace-region")
}
if d.Username == "" {
return missingEnvOrOption("Username", "OS_USERNAME", "--rackspace-username")
}
if d.APIKey == "" {
return missingEnvOrOption("API key", "OS_API_KEY", "--rackspace-api-key")
}
if d.ImageId == "" {
// Default to the Ubuntu 16.04 image.
// This is done here, rather than in the option registration, to keep the default value
// from making "machine create --help" ugly.
d.ImageId = "821ba5f4-712d-4ec8-9c65-a3fa4bc500f9"
}
if d.EndpointType != "publicURL" && d.EndpointType != "adminURL" && d.EndpointType != "internalURL" {
return fmt.Errorf("invalid endpoint type %q (must be publicURL, adminURL or internalURL)", d.EndpointType)
}
return nil
}