Initial support for launching instances on OpenStack

This commit provides rudimentary support for launching instances on an
OpenStack platform.

Signed-off-by: Nick Jones <nick@dischord.org>

src/cmd/linuxkit/run.go

@@ -22,6 +22,7 @@ func runUsage() {
 	fmt.Printf("  gcp\n")
 	fmt.Printf("  hyperkit [macOS]\n")
 	fmt.Printf("  hyperv [Windows]\n")
+	fmt.Printf("  openstack\n")
 	fmt.Printf("  packet\n")
 	fmt.Printf("  qemu [linux]\n")
 	fmt.Printf("  vcenter\n")
@@ -54,6 +55,8 @@ func run(args []string) {
 		runHyperKit(args[1:])
 	case "hyperv":
 		runHyperV(args[1:])
+	case "openstack":
+		runOpenStack(args[1:])
 	case "packet":
 		runPacket(args[1:])
 	case "qemu":

src/cmd/linuxkit/run_openstack.go

@@ -0,0 +1,88 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	log "github.com/Sirupsen/logrus"
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack"
+	"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
+)
+
+const (
+	defaultOSFlavor = "m1.tiny"
+	authurlVar      = "OS_AUTH_URL"
+	usernameVar     = "OS_USERNAME"
+	passwordVar     = "OS_PASSWORD"
+	projectNameVar  = "OS_PROJECT_NAME"
+	userDomainVar   = "OS_USER_DOMAIN_NAME"
+)
+
+func runOpenStack(args []string) {
+	flags := flag.NewFlagSet("openstack", flag.ExitOnError)
+	invoked := filepath.Base(os.Args[0])
+	flags.Usage = func() {
+		fmt.Printf("USAGE: %s run openstack [options]\n\n", invoked)
+		flags.PrintDefaults()
+	}
+	authurlFlag := flags.String("authurl", "", "The URL of the OpenStack identity service, i.e https://keystone.example.com:5000/v3")
+	usernameFlag := flags.String("username", "", "Username with permissions to create an instance")
+	passwordFlag := flags.String("password", "", "Password for the specified username")
+	projectNameFlag := flags.String("project", "", "Name of the Project (aka Tenant) to be used")
+	userDomainFlag := flags.String("domain", "Default", "Domain name")
+	imageID := flags.String("img-ID", "", "The ID of the image to boot the instance from")
+	networkID := flags.String("network", "", "The ID of the network to attach the instance to")
+	flavorName := flags.String("flavor", defaultOSFlavor, "Instance size (flavor)")
+	name := flags.String("name", "", "Name of the instance")
+
+	if err := flags.Parse(args); err != nil {
+		log.Fatal("Unable to parse args")
+	}
+
+	authurl := getStringValue(authurlVar, *authurlFlag, "")
+	username := getStringValue(usernameVar, *usernameFlag, "")
+	password := getStringValue(passwordVar, *passwordFlag, "")
+	projectName := getStringValue(projectNameVar, *projectNameFlag, "")
+	userDomain := getStringValue(userDomainVar, *userDomainFlag, "")
+
+	authOpts := gophercloud.AuthOptions{
+		IdentityEndpoint: authurl,
+		Username:         username,
+		Password:         password,
+		DomainName:       userDomain,
+		TenantName:       projectName,
+	}
+	provider, err := openstack.AuthenticatedClient(authOpts)
+	if err != nil {
+		log.Fatalf("Failed to authenticate")
+	}
+
+	client, err := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{})
+	if err != nil {
+		log.Fatalf("Unable to create Compute V2 client, %s", err)
+	}
+
+	network := servers.Network{
+		UUID: *networkID,
+	}
+
+	serverOpts := &servers.CreateOpts{
+		FlavorName:    *flavorName,
+		ImageRef:      *imageID,
+		Name:          *name,
+		Networks:      []servers.Network{network},
+		ServiceClient: client,
+	}
+
+	server, err := servers.Create(client, serverOpts).Extract()
+	if err != nil {
+		log.Fatalf("Unable to create server: %s", err)
+	}
+
+	servers.WaitForStatus(client, server.ID, "ACTIVE", 600)
+	fmt.Printf("Server created, UUID is %s", server.ID)
+
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/flavors/doc.go

@@ -0,0 +1,7 @@
+// Package flavors provides information and interaction with the flavor API
+// resource in the OpenStack Compute service.
+//
+// A flavor is an available hardware configuration for a server. Each flavor
+// has a unique combination of disk space, memory capacity and priority for CPU
+// time.
+package flavors

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/flavors/requests.go

@@ -0,0 +1,163 @@
+package flavors
+
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToFlavorListQuery() (string, error)
+}
+
+// AccessType maps to OpenStack's Flavor.is_public field. Although the is_public field is boolean, the
+// request options are ternary, which is why AccessType is a string. The following values are
+// allowed:
+//
+//      PublicAccess (the default):  Returns public flavors and private flavors associated with that project.
+//      PrivateAccess (admin only):  Returns private flavors, across all projects.
+//      AllAccess (admin only):      Returns public and private flavors across all projects.
+//
+// The AccessType arguement is optional, and if it is not supplied, OpenStack returns the PublicAccess
+// flavors.
+type AccessType string
+
+const (
+	PublicAccess  AccessType = "true"
+	PrivateAccess AccessType = "false"
+	AllAccess     AccessType = "None"
+)
+
+// ListOpts helps control the results returned by the List() function.
+// For example, a flavor with a minDisk field of 10 will not be returned if you specify MinDisk set to 20.
+// Typically, software will use the last ID of the previous call to List to set the Marker for the current call.
+type ListOpts struct {
+
+	// ChangesSince, if provided, instructs List to return only those things which have changed since the timestamp provided.
+	ChangesSince string `q:"changes-since"`
+
+	// MinDisk and MinRAM, if provided, elides flavors which do not meet your criteria.
+	MinDisk int `q:"minDisk"`
+	MinRAM  int `q:"minRam"`
+
+	// Marker and Limit control paging.
+	// Marker instructs List where to start listing from.
+	Marker string `q:"marker"`
+
+	// Limit instructs List to refrain from sending excessively large lists of flavors.
+	Limit int `q:"limit"`
+
+	// AccessType, if provided, instructs List which set of flavors to return. If IsPublic not provided,
+	// flavors for the current project are returned.
+	AccessType AccessType `q:"is_public"`
+}
+
+// ToFlavorListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToFlavorListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// ListDetail instructs OpenStack to provide a list of flavors.
+// You may provide criteria by which List curtails its results for easier processing.
+// See ListOpts for more details.
+func ListDetail(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := listURL(client)
+	if opts != nil {
+		query, err := opts.ToFlavorListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
+		return FlavorPage{pagination.LinkedPageBase{PageResult: r}}
+	})
+}
+
+type CreateOptsBuilder interface {
+	ToFlavorCreateMap() (map[string]interface{}, error)
+}
+
+// CreateOpts is passed to Create to create a flavor
+// Source:
+// https://github.com/openstack/nova/blob/stable/newton/nova/api/openstack/compute/schemas/flavor_manage.py#L20
+type CreateOpts struct {
+	Name string `json:"name" required:"true"`
+	// memory size, in MBs
+	RAM   int `json:"ram" required:"true"`
+	VCPUs int `json:"vcpus" required:"true"`
+	// disk size, in GBs
+	Disk *int   `json:"disk" required:"true"`
+	ID   string `json:"id,omitempty"`
+	// non-zero, positive
+	Swap       *int    `json:"swap,omitempty"`
+	RxTxFactor float64 `json:"rxtx_factor,omitempty"`
+	IsPublic   *bool   `json:"os-flavor-access:is_public,omitempty"`
+	// ephemeral disk size, in GBs, non-zero, positive
+	Ephemeral *int `json:"OS-FLV-EXT-DATA:ephemeral,omitempty"`
+}
+
+// ToFlavorCreateMap satisfies the CreateOptsBuilder interface
+func (opts *CreateOpts) ToFlavorCreateMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "flavor")
+}
+
+// Create a flavor
+func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
+	b, err := opts.ToFlavorCreateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(createURL(client), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 201},
+	})
+	return
+}
+
+// Get instructs OpenStack to provide details on a single flavor, identified by its ID.
+// Use ExtractFlavor to convert its result into a Flavor.
+func Get(client *gophercloud.ServiceClient, id string) (r GetResult) {
+	_, r.Err = client.Get(getURL(client, id), &r.Body, nil)
+	return
+}
+
+// IDFromName is a convienience function that returns a flavor's ID given its name.
+func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
+	count := 0
+	id := ""
+	allPages, err := ListDetail(client, nil).AllPages()
+	if err != nil {
+		return "", err
+	}
+
+	all, err := ExtractFlavors(allPages)
+	if err != nil {
+		return "", err
+	}
+
+	for _, f := range all {
+		if f.Name == name {
+			count++
+			id = f.ID
+		}
+	}
+
+	switch count {
+	case 0:
+		err := &gophercloud.ErrResourceNotFound{}
+		err.ResourceType = "flavor"
+		err.Name = name
+		return "", err
+	case 1:
+		return id, nil
+	default:
+		err := &gophercloud.ErrMultipleResourcesFound{}
+		err.ResourceType = "flavor"
+		err.Name = name
+		err.Count = count
+		return "", err
+	}
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/flavors/results.go

@@ -0,0 +1,115 @@
+package flavors
+
+import (
+	"encoding/json"
+	"strconv"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+type commonResult struct {
+	gophercloud.Result
+}
+
+type CreateResult struct {
+	commonResult
+}
+
+// GetResult temporarily holds the response from a Get call.
+type GetResult struct {
+	commonResult
+}
+
+// Extract provides access to the individual Flavor returned by the Get and Create functions.
+func (r commonResult) Extract() (*Flavor, error) {
+	var s struct {
+		Flavor *Flavor `json:"flavor"`
+	}
+	err := r.ExtractInto(&s)
+	return s.Flavor, err
+}
+
+// Flavor records represent (virtual) hardware configurations for server resources in a region.
+type Flavor struct {
+	// The Id field contains the flavor's unique identifier.
+	// For example, this identifier will be useful when specifying which hardware configuration to use for a new server instance.
+	ID string `json:"id"`
+	// The Disk and RA< fields provide a measure of storage space offered by the flavor, in GB and MB, respectively.
+	Disk int `json:"disk"`
+	RAM  int `json:"ram"`
+	// The Name field provides a human-readable moniker for the flavor.
+	Name       string  `json:"name"`
+	RxTxFactor float64 `json:"rxtx_factor"`
+	// Swap indicates how much space is reserved for swap.
+	// If not provided, this field will be set to 0.
+	Swap int `json:"swap"`
+	// VCPUs indicates how many (virtual) CPUs are available for this flavor.
+	VCPUs int `json:"vcpus"`
+	// IsPublic indicates whether the flavor is public.
+	IsPublic bool `json:"is_public"`
+}
+
+func (r *Flavor) UnmarshalJSON(b []byte) error {
+	type tmp Flavor
+	var s struct {
+		tmp
+		Swap interface{} `json:"swap"`
+	}
+	err := json.Unmarshal(b, &s)
+	if err != nil {
+		return err
+	}
+
+	*r = Flavor(s.tmp)
+
+	switch t := s.Swap.(type) {
+	case float64:
+		r.Swap = int(t)
+	case string:
+		switch t {
+		case "":
+			r.Swap = 0
+		default:
+			swap, err := strconv.ParseFloat(t, 64)
+			if err != nil {
+				return err
+			}
+			r.Swap = int(swap)
+		}
+	}
+
+	return nil
+}
+
+// FlavorPage contains a single page of the response from a List call.
+type FlavorPage struct {
+	pagination.LinkedPageBase
+}
+
+// IsEmpty determines if a page contains any results.
+func (page FlavorPage) IsEmpty() (bool, error) {
+	flavors, err := ExtractFlavors(page)
+	return len(flavors) == 0, err
+}
+
+// NextPageURL uses the response's embedded link reference to navigate to the next page of results.
+func (page FlavorPage) NextPageURL() (string, error) {
+	var s struct {
+		Links []gophercloud.Link `json:"flavors_links"`
+	}
+	err := page.ExtractInto(&s)
+	if err != nil {
+		return "", err
+	}
+	return gophercloud.ExtractNextURL(s.Links)
+}
+
+// ExtractFlavors provides access to the list of flavors in a page acquired from the List operation.
+func ExtractFlavors(r pagination.Page) ([]Flavor, error) {
+	var s struct {
+		Flavors []Flavor `json:"flavors"`
+	}
+	err := (r.(FlavorPage)).ExtractInto(&s)
+	return s.Flavors, err
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/flavors/urls.go

@@ -0,0 +1,17 @@
+package flavors
+
+import (
+	"github.com/gophercloud/gophercloud"
+)
+
+func getURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("flavors", id)
+}
+
+func listURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("flavors", "detail")
+}
+
+func createURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("flavors")
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/images/doc.go

@@ -0,0 +1,7 @@
+// Package images provides information and interaction with the image API
+// resource in the OpenStack Compute service.
+//
+// An image is a collection of files used to create or rebuild a server.
+// Operators provide a number of pre-built OS images by default. You may also
+// create custom images from cloud servers you have launched.
+package images

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/images/requests.go

@@ -0,0 +1,102 @@
+package images
+
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToImageListQuery() (string, error)
+}
+
+// ListOpts contain options for limiting the number of Images returned from a call to ListDetail.
+type ListOpts struct {
+	// When the image last changed status (in date-time format).
+	ChangesSince string `q:"changes-since"`
+	// The number of Images to return.
+	Limit int `q:"limit"`
+	// UUID of the Image at which to set a marker.
+	Marker string `q:"marker"`
+	// The name of the Image.
+	Name string `q:"name"`
+	// The name of the Server (in URL format).
+	Server string `q:"server"`
+	// The current status of the Image.
+	Status string `q:"status"`
+	// The value of the type of image (e.g. BASE, SERVER, ALL)
+	Type string `q:"type"`
+}
+
+// ToImageListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToImageListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// ListDetail enumerates the available images.
+func ListDetail(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := listDetailURL(client)
+	if opts != nil {
+		query, err := opts.ToImageListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
+		return ImagePage{pagination.LinkedPageBase{PageResult: r}}
+	})
+}
+
+// Get acquires additional detail about a specific image by ID.
+// Use ExtractImage() to interpret the result as an openstack Image.
+func Get(client *gophercloud.ServiceClient, id string) (r GetResult) {
+	_, r.Err = client.Get(getURL(client, id), &r.Body, nil)
+	return
+}
+
+// Delete deletes the specified image ID.
+func Delete(client *gophercloud.ServiceClient, id string) (r DeleteResult) {
+	_, r.Err = client.Delete(deleteURL(client, id), nil)
+	return
+}
+
+// IDFromName is a convienience function that returns an image's ID given its name.
+func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
+	count := 0
+	id := ""
+	allPages, err := ListDetail(client, nil).AllPages()
+	if err != nil {
+		return "", err
+	}
+
+	all, err := ExtractImages(allPages)
+	if err != nil {
+		return "", err
+	}
+
+	for _, f := range all {
+		if f.Name == name {
+			count++
+			id = f.ID
+		}
+	}
+
+	switch count {
+	case 0:
+		err := &gophercloud.ErrResourceNotFound{}
+		err.ResourceType = "image"
+		err.Name = name
+		return "", err
+	case 1:
+		return id, nil
+	default:
+		err := &gophercloud.ErrMultipleResourcesFound{}
+		err.ResourceType = "image"
+		err.Name = name
+		err.Count = count
+		return "", err
+	}
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/images/results.go

@@ -0,0 +1,83 @@
+package images
+
+import (
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+// GetResult temporarily stores a Get response.
+type GetResult struct {
+	gophercloud.Result
+}
+
+// DeleteResult represents the result of an image.Delete operation.
+type DeleteResult struct {
+	gophercloud.ErrResult
+}
+
+// Extract interprets a GetResult as an Image.
+func (r GetResult) Extract() (*Image, error) {
+	var s struct {
+		Image *Image `json:"image"`
+	}
+	err := r.ExtractInto(&s)
+	return s.Image, err
+}
+
+// Image is used for JSON (un)marshalling.
+// It provides a description of an OS image.
+type Image struct {
+	// ID contains the image's unique identifier.
+	ID string
+
+	Created string
+
+	// MinDisk and MinRAM specify the minimum resources a server must provide to be able to install the image.
+	MinDisk int
+	MinRAM  int
+
+	// Name provides a human-readable moniker for the OS image.
+	Name string
+
+	// The Progress and Status fields indicate image-creation status.
+	// Any usable image will have 100% progress.
+	Progress int
+	Status   string
+
+	Updated string
+
+	Metadata map[string]interface{}
+}
+
+// ImagePage contains a single page of results from a List operation.
+// Use ExtractImages to convert it into a slice of usable structs.
+type ImagePage struct {
+	pagination.LinkedPageBase
+}
+
+// IsEmpty returns true if a page contains no Image results.
+func (page ImagePage) IsEmpty() (bool, error) {
+	images, err := ExtractImages(page)
+	return len(images) == 0, err
+}
+
+// NextPageURL uses the response's embedded link reference to navigate to the next page of results.
+func (page ImagePage) NextPageURL() (string, error) {
+	var s struct {
+		Links []gophercloud.Link `json:"images_links"`
+	}
+	err := page.ExtractInto(&s)
+	if err != nil {
+		return "", err
+	}
+	return gophercloud.ExtractNextURL(s.Links)
+}
+
+// ExtractImages converts a page of List results into a slice of usable Image structs.
+func ExtractImages(r pagination.Page) ([]Image, error) {
+	var s struct {
+		Images []Image `json:"images"`
+	}
+	err := (r.(ImagePage)).ExtractInto(&s)
+	return s.Images, err
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/images/urls.go

@@ -0,0 +1,15 @@
+package images
+
+import "github.com/gophercloud/gophercloud"
+
+func listDetailURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("images", "detail")
+}
+
+func getURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("images", id)
+}
+
+func deleteURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("images", id)
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/doc.go

@@ -0,0 +1,6 @@
+// Package servers provides information and interaction with the server API
+// resource in the OpenStack Compute service.
+//
+// A server is a virtual machine instance in the compute system. In order for
+// one to be provisioned, a valid flavor and image are required.
+package servers

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/errors.go

@@ -0,0 +1,71 @@
+package servers
+
+import (
+	"fmt"
+
+	"github.com/gophercloud/gophercloud"
+)
+
+// ErrNeitherImageIDNorImageNameProvided is the error when neither the image
+// ID nor the image name is provided for a server operation
+type ErrNeitherImageIDNorImageNameProvided struct{ gophercloud.ErrMissingInput }
+
+func (e ErrNeitherImageIDNorImageNameProvided) Error() string {
+	return "One and only one of the image ID and the image name must be provided."
+}
+
+// ErrNeitherFlavorIDNorFlavorNameProvided is the error when neither the flavor
+// ID nor the flavor name is provided for a server operation
+type ErrNeitherFlavorIDNorFlavorNameProvided struct{ gophercloud.ErrMissingInput }
+
+func (e ErrNeitherFlavorIDNorFlavorNameProvided) Error() string {
+	return "One and only one of the flavor ID and the flavor name must be provided."
+}
+
+type ErrNoClientProvidedForIDByName struct{ gophercloud.ErrMissingInput }
+
+func (e ErrNoClientProvidedForIDByName) Error() string {
+	return "A service client must be provided to find a resource ID by name."
+}
+
+// ErrInvalidHowParameterProvided is the error when an unknown value is given
+// for the `how` argument
+type ErrInvalidHowParameterProvided struct{ gophercloud.ErrInvalidInput }
+
+// ErrNoAdminPassProvided is the error when an administrative password isn't
+// provided for a server operation
+type ErrNoAdminPassProvided struct{ gophercloud.ErrMissingInput }
+
+// ErrNoImageIDProvided is the error when an image ID isn't provided for a server
+// operation
+type ErrNoImageIDProvided struct{ gophercloud.ErrMissingInput }
+
+// ErrNoIDProvided is the error when a server ID isn't provided for a server
+// operation
+type ErrNoIDProvided struct{ gophercloud.ErrMissingInput }
+
+// ErrServer is a generic error type for servers HTTP operations.
+type ErrServer struct {
+	gophercloud.ErrUnexpectedResponseCode
+	ID string
+}
+
+func (se ErrServer) Error() string {
+	return fmt.Sprintf("Error while executing HTTP request for server [%s]", se.ID)
+}
+
+// Error404 overrides the generic 404 error message.
+func (se ErrServer) Error404(e gophercloud.ErrUnexpectedResponseCode) error {
+	se.ErrUnexpectedResponseCode = e
+	return &ErrServerNotFound{se}
+}
+
+// ErrServerNotFound is the error when a 404 is received during server HTTP
+// operations.
+type ErrServerNotFound struct {
+	ErrServer
+}
+
+func (e ErrServerNotFound) Error() string {
+	return fmt.Sprintf("I couldn't find server [%s]", e.ID)
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/requests.go

@@ -0,0 +1,744 @@
+package servers
+
+import (
+	"encoding/base64"
+	"encoding/json"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/openstack/compute/v2/flavors"
+	"github.com/gophercloud/gophercloud/openstack/compute/v2/images"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+// ListOptsBuilder allows extensions to add additional parameters to the
+// List request.
+type ListOptsBuilder interface {
+	ToServerListQuery() (string, error)
+}
+
+// ListOpts allows the filtering and sorting of paginated collections through
+// the API. Filtering is achieved by passing in struct field values that map to
+// the server attributes you want to see returned. Marker and Limit are used
+// for pagination.
+type ListOpts struct {
+	// A time/date stamp for when the server last changed status.
+	ChangesSince string `q:"changes-since"`
+
+	// Name of the image in URL format.
+	Image string `q:"image"`
+
+	// Name of the flavor in URL format.
+	Flavor string `q:"flavor"`
+
+	// Name of the server as a string; can be queried with regular expressions.
+	// Realize that ?name=bob returns both bob and bobb. If you need to match bob
+	// only, you can use a regular expression matching the syntax of the
+	// underlying database server implemented for Compute.
+	Name string `q:"name"`
+
+	// Value of the status of the server so that you can filter on "ACTIVE" for example.
+	Status string `q:"status"`
+
+	// Name of the host as a string.
+	Host string `q:"host"`
+
+	// UUID of the server at which you want to set a marker.
+	Marker string `q:"marker"`
+
+	// Integer value for the limit of values to return.
+	Limit int `q:"limit"`
+
+	// Bool to show all tenants
+	AllTenants bool `q:"all_tenants"`
+
+	// List servers for a particular tenant. Setting "AllTenants = true" is required.
+	TenantID string `q:"tenant_id"`
+}
+
+// ToServerListQuery formats a ListOpts into a query string.
+func (opts ListOpts) ToServerListQuery() (string, error) {
+	q, err := gophercloud.BuildQueryString(opts)
+	return q.String(), err
+}
+
+// List makes a request against the API to list servers accessible to you.
+func List(client *gophercloud.ServiceClient, opts ListOptsBuilder) pagination.Pager {
+	url := listDetailURL(client)
+	if opts != nil {
+		query, err := opts.ToServerListQuery()
+		if err != nil {
+			return pagination.Pager{Err: err}
+		}
+		url += query
+	}
+	return pagination.NewPager(client, url, func(r pagination.PageResult) pagination.Page {
+		return ServerPage{pagination.LinkedPageBase{PageResult: r}}
+	})
+}
+
+// CreateOptsBuilder describes struct types that can be accepted by the Create call.
+// The CreateOpts struct in this package does.
+type CreateOptsBuilder interface {
+	ToServerCreateMap() (map[string]interface{}, error)
+}
+
+// Network is used within CreateOpts to control a new server's network attachments.
+type Network struct {
+	// UUID of a nova-network to attach to the newly provisioned server.
+	// Required unless Port is provided.
+	UUID string
+
+	// Port of a neutron network to attach to the newly provisioned server.
+	// Required unless UUID is provided.
+	Port string
+
+	// FixedIP [optional] specifies a fixed IPv4 address to be used on this network.
+	FixedIP string
+}
+
+// Personality is an array of files that are injected into the server at launch.
+type Personality []*File
+
+// File is used within CreateOpts and RebuildOpts to inject a file into the server at launch.
+// File implements the json.Marshaler interface, so when a Create or Rebuild operation is requested,
+// json.Marshal will call File's MarshalJSON method.
+type File struct {
+	// Path of the file
+	Path string
+	// Contents of the file. Maximum content size is 255 bytes.
+	Contents []byte
+}
+
+// MarshalJSON marshals the escaped file, base64 encoding the contents.
+func (f *File) MarshalJSON() ([]byte, error) {
+	file := struct {
+		Path     string `json:"path"`
+		Contents string `json:"contents"`
+	}{
+		Path:     f.Path,
+		Contents: base64.StdEncoding.EncodeToString(f.Contents),
+	}
+	return json.Marshal(file)
+}
+
+// CreateOpts specifies server creation parameters.
+type CreateOpts struct {
+	// Name is the name to assign to the newly launched server.
+	Name string `json:"name" required:"true"`
+
+	// ImageRef [optional; required if ImageName is not provided] is the ID or full
+	// URL to the image that contains the server's OS and initial state.
+	// Also optional if using the boot-from-volume extension.
+	ImageRef string `json:"imageRef"`
+
+	// ImageName [optional; required if ImageRef is not provided] is the name of the
+	// image that contains the server's OS and initial state.
+	// Also optional if using the boot-from-volume extension.
+	ImageName string `json:"-"`
+
+	// FlavorRef [optional; required if FlavorName is not provided] is the ID or
+	// full URL to the flavor that describes the server's specs.
+	FlavorRef string `json:"flavorRef"`
+
+	// FlavorName [optional; required if FlavorRef is not provided] is the name of
+	// the flavor that describes the server's specs.
+	FlavorName string `json:"-"`
+
+	// SecurityGroups lists the names of the security groups to which this server should belong.
+	SecurityGroups []string `json:"-"`
+
+	// UserData contains configuration information or scripts to use upon launch.
+	// Create will base64-encode it for you, if it isn't already.
+	UserData []byte `json:"-"`
+
+	// AvailabilityZone in which to launch the server.
+	AvailabilityZone string `json:"availability_zone,omitempty"`
+
+	// Networks dictates how this server will be attached to available networks.
+	// By default, the server will be attached to all isolated networks for the tenant.
+	Networks []Network `json:"-"`
+
+	// Metadata contains key-value pairs (up to 255 bytes each) to attach to the server.
+	Metadata map[string]string `json:"metadata,omitempty"`
+
+	// Personality includes files to inject into the server at launch.
+	// Create will base64-encode file contents for you.
+	Personality Personality `json:"personality,omitempty"`
+
+	// ConfigDrive enables metadata injection through a configuration drive.
+	ConfigDrive *bool `json:"config_drive,omitempty"`
+
+	// AdminPass sets the root user password. If not set, a randomly-generated
+	// password will be created and returned in the rponse.
+	AdminPass string `json:"adminPass,omitempty"`
+
+	// AccessIPv4 specifies an IPv4 address for the instance.
+	AccessIPv4 string `json:"accessIPv4,omitempty"`
+
+	// AccessIPv6 pecifies an IPv6 address for the instance.
+	AccessIPv6 string `json:"accessIPv6,omitempty"`
+
+	// ServiceClient will allow calls to be made to retrieve an image or
+	// flavor ID by name.
+	ServiceClient *gophercloud.ServiceClient `json:"-"`
+}
+
+// ToServerCreateMap assembles a request body based on the contents of a CreateOpts.
+func (opts CreateOpts) ToServerCreateMap() (map[string]interface{}, error) {
+	sc := opts.ServiceClient
+	opts.ServiceClient = nil
+	b, err := gophercloud.BuildRequestBody(opts, "")
+	if err != nil {
+		return nil, err
+	}
+
+	if opts.UserData != nil {
+		var userData string
+		if _, err := base64.StdEncoding.DecodeString(string(opts.UserData)); err != nil {
+			userData = base64.StdEncoding.EncodeToString(opts.UserData)
+		} else {
+			userData = string(opts.UserData)
+		}
+		b["user_data"] = &userData
+	}
+
+	if len(opts.SecurityGroups) > 0 {
+		securityGroups := make([]map[string]interface{}, len(opts.SecurityGroups))
+		for i, groupName := range opts.SecurityGroups {
+			securityGroups[i] = map[string]interface{}{"name": groupName}
+		}
+		b["security_groups"] = securityGroups
+	}
+
+	if len(opts.Networks) > 0 {
+		networks := make([]map[string]interface{}, len(opts.Networks))
+		for i, net := range opts.Networks {
+			networks[i] = make(map[string]interface{})
+			if net.UUID != "" {
+				networks[i]["uuid"] = net.UUID
+			}
+			if net.Port != "" {
+				networks[i]["port"] = net.Port
+			}
+			if net.FixedIP != "" {
+				networks[i]["fixed_ip"] = net.FixedIP
+			}
+		}
+		b["networks"] = networks
+	}
+
+	// If ImageRef isn't provided, check if ImageName was provided to ascertain
+	// the image ID.
+	if opts.ImageRef == "" {
+		if opts.ImageName != "" {
+			if sc == nil {
+				err := ErrNoClientProvidedForIDByName{}
+				err.Argument = "ServiceClient"
+				return nil, err
+			}
+			imageID, err := images.IDFromName(sc, opts.ImageName)
+			if err != nil {
+				return nil, err
+			}
+			b["imageRef"] = imageID
+		}
+	}
+
+	// If FlavorRef isn't provided, use FlavorName to ascertain the flavor ID.
+	if opts.FlavorRef == "" {
+		if opts.FlavorName == "" {
+			err := ErrNeitherFlavorIDNorFlavorNameProvided{}
+			err.Argument = "FlavorRef/FlavorName"
+			return nil, err
+		}
+		if sc == nil {
+			err := ErrNoClientProvidedForIDByName{}
+			err.Argument = "ServiceClient"
+			return nil, err
+		}
+		flavorID, err := flavors.IDFromName(sc, opts.FlavorName)
+		if err != nil {
+			return nil, err
+		}
+		b["flavorRef"] = flavorID
+	}
+
+	return map[string]interface{}{"server": b}, nil
+}
+
+// Create requests a server to be provisioned to the user in the current tenant.
+func Create(client *gophercloud.ServiceClient, opts CreateOptsBuilder) (r CreateResult) {
+	reqBody, err := opts.ToServerCreateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(listURL(client), reqBody, &r.Body, nil)
+	return
+}
+
+// Delete requests that a server previously provisioned be removed from your account.
+func Delete(client *gophercloud.ServiceClient, id string) (r DeleteResult) {
+	_, r.Err = client.Delete(deleteURL(client, id), nil)
+	return
+}
+
+// ForceDelete forces the deletion of a server
+func ForceDelete(client *gophercloud.ServiceClient, id string) (r ActionResult) {
+	_, r.Err = client.Post(actionURL(client, id), map[string]interface{}{"forceDelete": ""}, nil, nil)
+	return
+}
+
+// Get requests details on a single server, by ID.
+func Get(client *gophercloud.ServiceClient, id string) (r GetResult) {
+	_, r.Err = client.Get(getURL(client, id), &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200, 203},
+	})
+	return
+}
+
+// UpdateOptsBuilder allows extensions to add additional attributes to the Update request.
+type UpdateOptsBuilder interface {
+	ToServerUpdateMap() (map[string]interface{}, error)
+}
+
+// UpdateOpts specifies the base attributes that may be updated on an existing server.
+type UpdateOpts struct {
+	// Name changes the displayed name of the server.
+	// The server host name will *not* change.
+	// Server names are not constrained to be unique, even within the same tenant.
+	Name string `json:"name,omitempty"`
+
+	// AccessIPv4 provides a new IPv4 address for the instance.
+	AccessIPv4 string `json:"accessIPv4,omitempty"`
+
+	// AccessIPv6 provides a new IPv6 address for the instance.
+	AccessIPv6 string `json:"accessIPv6,omitempty"`
+}
+
+// ToServerUpdateMap formats an UpdateOpts structure into a request body.
+func (opts UpdateOpts) ToServerUpdateMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "server")
+}
+
+// Update requests that various attributes of the indicated server be changed.
+func Update(client *gophercloud.ServiceClient, id string, opts UpdateOptsBuilder) (r UpdateResult) {
+	b, err := opts.ToServerUpdateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Put(updateURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
+	})
+	return
+}
+
+// ChangeAdminPassword alters the administrator or root password for a specified server.
+func ChangeAdminPassword(client *gophercloud.ServiceClient, id, newPassword string) (r ActionResult) {
+	b := map[string]interface{}{
+		"changePassword": map[string]string{
+			"adminPass": newPassword,
+		},
+	}
+	_, r.Err = client.Post(actionURL(client, id), b, nil, nil)
+	return
+}
+
+// RebootMethod describes the mechanisms by which a server reboot can be requested.
+type RebootMethod string
+
+// These constants determine how a server should be rebooted.
+// See the Reboot() function for further details.
+const (
+	SoftReboot RebootMethod = "SOFT"
+	HardReboot RebootMethod = "HARD"
+	OSReboot                = SoftReboot
+	PowerCycle              = HardReboot
+)
+
+// RebootOptsBuilder is an interface that options must satisfy in order to be
+// used when rebooting a server instance
+type RebootOptsBuilder interface {
+	ToServerRebootMap() (map[string]interface{}, error)
+}
+
+// RebootOpts satisfies the RebootOptsBuilder interface
+type RebootOpts struct {
+	Type RebootMethod `json:"type" required:"true"`
+}
+
+// ToServerRebootMap allows RebootOpts to satisfiy the RebootOptsBuilder
+// interface
+func (opts *RebootOpts) ToServerRebootMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "reboot")
+}
+
+// Reboot requests that a given server reboot.
+// Two methods exist for rebooting a server:
+//
+// HardReboot (aka PowerCycle) starts the server instance by physically cutting power to the machine, or if a VM,
+// terminating it at the hypervisor level.
+// It's done. Caput. Full stop.
+// Then, after a brief while, power is rtored or the VM instance rtarted.
+//
+// SoftReboot (aka OSReboot) simply tells the OS to rtart under its own procedur.
+// E.g., in Linux, asking it to enter runlevel 6, or executing "sudo shutdown -r now", or by asking Windows to rtart the machine.
+func Reboot(client *gophercloud.ServiceClient, id string, opts RebootOptsBuilder) (r ActionResult) {
+	b, err := opts.ToServerRebootMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(actionURL(client, id), b, nil, nil)
+	return
+}
+
+// RebuildOptsBuilder is an interface that allows extensions to override the
+// default behaviour of rebuild options
+type RebuildOptsBuilder interface {
+	ToServerRebuildMap() (map[string]interface{}, error)
+}
+
+// RebuildOpts represents the configuration options used in a server rebuild
+// operation
+type RebuildOpts struct {
+	// The server's admin password
+	AdminPass string `json:"adminPass,omitempty"`
+	// The ID of the image you want your server to be provisioned on
+	ImageID   string `json:"imageRef"`
+	ImageName string `json:"-"`
+	// Name to set the server to
+	Name string `json:"name,omitempty"`
+	// AccessIPv4 [optional] provides a new IPv4 address for the instance.
+	AccessIPv4 string `json:"accessIPv4,omitempty"`
+	// AccessIPv6 [optional] provides a new IPv6 address for the instance.
+	AccessIPv6 string `json:"accessIPv6,omitempty"`
+	// Metadata [optional] contains key-value pairs (up to 255 bytes each) to attach to the server.
+	Metadata map[string]string `json:"metadata,omitempty"`
+	// Personality [optional] includes files to inject into the server at launch.
+	// Rebuild will base64-encode file contents for you.
+	Personality   Personality                `json:"personality,omitempty"`
+	ServiceClient *gophercloud.ServiceClient `json:"-"`
+}
+
+// ToServerRebuildMap formats a RebuildOpts struct into a map for use in JSON
+func (opts RebuildOpts) ToServerRebuildMap() (map[string]interface{}, error) {
+	b, err := gophercloud.BuildRequestBody(opts, "")
+	if err != nil {
+		return nil, err
+	}
+
+	// If ImageRef isn't provided, check if ImageName was provided to ascertain
+	// the image ID.
+	if opts.ImageID == "" {
+		if opts.ImageName != "" {
+			if opts.ServiceClient == nil {
+				err := ErrNoClientProvidedForIDByName{}
+				err.Argument = "ServiceClient"
+				return nil, err
+			}
+			imageID, err := images.IDFromName(opts.ServiceClient, opts.ImageName)
+			if err != nil {
+				return nil, err
+			}
+			b["imageRef"] = imageID
+		}
+	}
+
+	return map[string]interface{}{"rebuild": b}, nil
+}
+
+// Rebuild will reprovision the server according to the configuration options
+// provided in the RebuildOpts struct.
+func Rebuild(client *gophercloud.ServiceClient, id string, opts RebuildOptsBuilder) (r RebuildResult) {
+	b, err := opts.ToServerRebuildMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(actionURL(client, id), b, &r.Body, nil)
+	return
+}
+
+// ResizeOptsBuilder is an interface that allows extensions to override the default structure of
+// a Resize request.
+type ResizeOptsBuilder interface {
+	ToServerResizeMap() (map[string]interface{}, error)
+}
+
+// ResizeOpts represents the configuration options used to control a Resize operation.
+type ResizeOpts struct {
+	// FlavorRef is the ID of the flavor you wish your server to become.
+	FlavorRef string `json:"flavorRef" required:"true"`
+}
+
+// ToServerResizeMap formats a ResizeOpts as a map that can be used as a JSON request body for the
+// Resize request.
+func (opts ResizeOpts) ToServerResizeMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "resize")
+}
+
+// Resize instructs the provider to change the flavor of the server.
+// Note that this implies rebuilding it.
+// Unfortunately, one cannot pass rebuild parameters to the resize function.
+// When the resize completes, the server will be in RESIZE_VERIFY state.
+// While in this state, you can explore the use of the new server's configuration.
+// If you like it, call ConfirmResize() to commit the resize permanently.
+// Otherwise, call RevertResize() to restore the old configuration.
+func Resize(client *gophercloud.ServiceClient, id string, opts ResizeOptsBuilder) (r ActionResult) {
+	b, err := opts.ToServerResizeMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(actionURL(client, id), b, nil, nil)
+	return
+}
+
+// ConfirmResize confirms a previous resize operation on a server.
+// See Resize() for more details.
+func ConfirmResize(client *gophercloud.ServiceClient, id string) (r ActionResult) {
+	_, r.Err = client.Post(actionURL(client, id), map[string]interface{}{"confirmResize": nil}, nil, &gophercloud.RequestOpts{
+		OkCodes: []int{201, 202, 204},
+	})
+	return
+}
+
+// RevertResize cancels a previous resize operation on a server.
+// See Resize() for more details.
+func RevertResize(client *gophercloud.ServiceClient, id string) (r ActionResult) {
+	_, r.Err = client.Post(actionURL(client, id), map[string]interface{}{"revertResize": nil}, nil, nil)
+	return
+}
+
+// RescueOptsBuilder is an interface that allows extensions to override the
+// default structure of a Rescue request.
+type RescueOptsBuilder interface {
+	ToServerRescueMap() (map[string]interface{}, error)
+}
+
+// RescueOpts represents the configuration options used to control a Rescue
+// option.
+type RescueOpts struct {
+	// AdminPass is the desired administrative password for the instance in
+	// RESCUE mode. If it's left blank, the server will generate a password.
+	AdminPass string `json:"adminPass,omitempty"`
+}
+
+// ToServerRescueMap formats a RescueOpts as a map that can be used as a JSON
+// request body for the Rescue request.
+func (opts RescueOpts) ToServerRescueMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "rescue")
+}
+
+// Rescue instructs the provider to place the server into RESCUE mode.
+func Rescue(client *gophercloud.ServiceClient, id string, opts RescueOptsBuilder) (r RescueResult) {
+	b, err := opts.ToServerRescueMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(actionURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
+	})
+	return
+}
+
+// ResetMetadataOptsBuilder allows extensions to add additional parameters to the
+// Reset request.
+type ResetMetadataOptsBuilder interface {
+	ToMetadataResetMap() (map[string]interface{}, error)
+}
+
+// MetadataOpts is a map that contains key-value pairs.
+type MetadataOpts map[string]string
+
+// ToMetadataResetMap assembles a body for a Reset request based on the contents of a MetadataOpts.
+func (opts MetadataOpts) ToMetadataResetMap() (map[string]interface{}, error) {
+	return map[string]interface{}{"metadata": opts}, nil
+}
+
+// ToMetadataUpdateMap assembles a body for an Update request based on the contents of a MetadataOpts.
+func (opts MetadataOpts) ToMetadataUpdateMap() (map[string]interface{}, error) {
+	return map[string]interface{}{"metadata": opts}, nil
+}
+
+// ResetMetadata will create multiple new key-value pairs for the given server ID.
+// Note: Using this operation will erase any already-existing metadata and create
+// the new metadata provided. To keep any already-existing metadata, use the
+// UpdateMetadatas or UpdateMetadata function.
+func ResetMetadata(client *gophercloud.ServiceClient, id string, opts ResetMetadataOptsBuilder) (r ResetMetadataResult) {
+	b, err := opts.ToMetadataResetMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Put(metadataURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
+	})
+	return
+}
+
+// Metadata requests all the metadata for the given server ID.
+func Metadata(client *gophercloud.ServiceClient, id string) (r GetMetadataResult) {
+	_, r.Err = client.Get(metadataURL(client, id), &r.Body, nil)
+	return
+}
+
+// UpdateMetadataOptsBuilder allows extensions to add additional parameters to the
+// Create request.
+type UpdateMetadataOptsBuilder interface {
+	ToMetadataUpdateMap() (map[string]interface{}, error)
+}
+
+// UpdateMetadata updates (or creates) all the metadata specified by opts for the given server ID.
+// This operation does not affect already-existing metadata that is not specified
+// by opts.
+func UpdateMetadata(client *gophercloud.ServiceClient, id string, opts UpdateMetadataOptsBuilder) (r UpdateMetadataResult) {
+	b, err := opts.ToMetadataUpdateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Post(metadataURL(client, id), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
+	})
+	return
+}
+
+// MetadatumOptsBuilder allows extensions to add additional parameters to the
+// Create request.
+type MetadatumOptsBuilder interface {
+	ToMetadatumCreateMap() (map[string]interface{}, string, error)
+}
+
+// MetadatumOpts is a map of length one that contains a key-value pair.
+type MetadatumOpts map[string]string
+
+// ToMetadatumCreateMap assembles a body for a Create request based on the contents of a MetadataumOpts.
+func (opts MetadatumOpts) ToMetadatumCreateMap() (map[string]interface{}, string, error) {
+	if len(opts) != 1 {
+		err := gophercloud.ErrInvalidInput{}
+		err.Argument = "servers.MetadatumOpts"
+		err.Info = "Must have 1 and only 1 key-value pair"
+		return nil, "", err
+	}
+	metadatum := map[string]interface{}{"meta": opts}
+	var key string
+	for k := range metadatum["meta"].(MetadatumOpts) {
+		key = k
+	}
+	return metadatum, key, nil
+}
+
+// CreateMetadatum will create or update the key-value pair with the given key for the given server ID.
+func CreateMetadatum(client *gophercloud.ServiceClient, id string, opts MetadatumOptsBuilder) (r CreateMetadatumResult) {
+	b, key, err := opts.ToMetadatumCreateMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	_, r.Err = client.Put(metadatumURL(client, id, key), b, &r.Body, &gophercloud.RequestOpts{
+		OkCodes: []int{200},
+	})
+	return
+}
+
+// Metadatum requests the key-value pair with the given key for the given server ID.
+func Metadatum(client *gophercloud.ServiceClient, id, key string) (r GetMetadatumResult) {
+	_, r.Err = client.Get(metadatumURL(client, id, key), &r.Body, nil)
+	return
+}
+
+// DeleteMetadatum will delete the key-value pair with the given key for the given server ID.
+func DeleteMetadatum(client *gophercloud.ServiceClient, id, key string) (r DeleteMetadatumResult) {
+	_, r.Err = client.Delete(metadatumURL(client, id, key), nil)
+	return
+}
+
+// ListAddresses makes a request against the API to list the servers IP addresses.
+func ListAddresses(client *gophercloud.ServiceClient, id string) pagination.Pager {
+	return pagination.NewPager(client, listAddressesURL(client, id), func(r pagination.PageResult) pagination.Page {
+		return AddressPage{pagination.SinglePageBase(r)}
+	})
+}
+
+// ListAddressesByNetwork makes a request against the API to list the servers IP addresses
+// for the given network.
+func ListAddressesByNetwork(client *gophercloud.ServiceClient, id, network string) pagination.Pager {
+	return pagination.NewPager(client, listAddressesByNetworkURL(client, id, network), func(r pagination.PageResult) pagination.Page {
+		return NetworkAddressPage{pagination.SinglePageBase(r)}
+	})
+}
+
+// CreateImageOptsBuilder is the interface types must satisfy in order to be
+// used as CreateImage options
+type CreateImageOptsBuilder interface {
+	ToServerCreateImageMap() (map[string]interface{}, error)
+}
+
+// CreateImageOpts satisfies the CreateImageOptsBuilder
+type CreateImageOpts struct {
+	// Name of the image/snapshot
+	Name string `json:"name" required:"true"`
+	// Metadata contains key-value pairs (up to 255 bytes each) to attach to the created image.
+	Metadata map[string]string `json:"metadata,omitempty"`
+}
+
+// ToServerCreateImageMap formats a CreateImageOpts structure into a request body.
+func (opts CreateImageOpts) ToServerCreateImageMap() (map[string]interface{}, error) {
+	return gophercloud.BuildRequestBody(opts, "createImage")
+}
+
+// CreateImage makes a request against the nova API to schedule an image to be created of the server
+func CreateImage(client *gophercloud.ServiceClient, id string, opts CreateImageOptsBuilder) (r CreateImageResult) {
+	b, err := opts.ToServerCreateImageMap()
+	if err != nil {
+		r.Err = err
+		return
+	}
+	resp, err := client.Post(actionURL(client, id), b, nil, &gophercloud.RequestOpts{
+		OkCodes: []int{202},
+	})
+	r.Err = err
+	r.Header = resp.Header
+	return
+}
+
+// IDFromName is a convienience function that returns a server's ID given its name.
+func IDFromName(client *gophercloud.ServiceClient, name string) (string, error) {
+	count := 0
+	id := ""
+	allPages, err := List(client, nil).AllPages()
+	if err != nil {
+		return "", err
+	}
+
+	all, err := ExtractServers(allPages)
+	if err != nil {
+		return "", err
+	}
+
+	for _, f := range all {
+		if f.Name == name {
+			count++
+			id = f.ID
+		}
+	}
+
+	switch count {
+	case 0:
+		return "", gophercloud.ErrResourceNotFound{Name: name, ResourceType: "server"}
+	case 1:
+		return id, nil
+	default:
+		return "", gophercloud.ErrMultipleResourcesFound{Name: name, Count: count, ResourceType: "server"}
+	}
+}
+
+// GetPassword makes a request against the nova API to get the encrypted administrative password.
+func GetPassword(client *gophercloud.ServiceClient, serverId string) (r GetPasswordResult) {
+	_, r.Err = client.Get(passwordURL(client, serverId), &r.Body, nil)
+	return
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/results.go

@@ -0,0 +1,350 @@
+package servers
+
+import (
+	"crypto/rsa"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"net/url"
+	"path"
+	"time"
+
+	"github.com/gophercloud/gophercloud"
+	"github.com/gophercloud/gophercloud/pagination"
+)
+
+type serverResult struct {
+	gophercloud.Result
+}
+
+// Extract interprets any serverResult as a Server, if possible.
+func (r serverResult) Extract() (*Server, error) {
+	var s Server
+	err := r.ExtractInto(&s)
+	return &s, err
+}
+
+func (r serverResult) ExtractInto(v interface{}) error {
+	return r.Result.ExtractIntoStructPtr(v, "server")
+}
+
+func ExtractServersInto(r pagination.Page, v interface{}) error {
+	return r.(ServerPage).Result.ExtractIntoSlicePtr(v, "servers")
+}
+
+// CreateResult temporarily contains the response from a Create call.
+type CreateResult struct {
+	serverResult
+}
+
+// GetResult temporarily contains the response from a Get call.
+type GetResult struct {
+	serverResult
+}
+
+// UpdateResult temporarily contains the response from an Update call.
+type UpdateResult struct {
+	serverResult
+}
+
+// DeleteResult temporarily contains the response from a Delete call.
+type DeleteResult struct {
+	gophercloud.ErrResult
+}
+
+// RebuildResult temporarily contains the response from a Rebuild call.
+type RebuildResult struct {
+	serverResult
+}
+
+// ActionResult represents the result of server action operations, like reboot
+type ActionResult struct {
+	gophercloud.ErrResult
+}
+
+// RescueResult represents the result of a server rescue operation
+type RescueResult struct {
+	ActionResult
+}
+
+// CreateImageResult represents the result of an image creation operation
+type CreateImageResult struct {
+	gophercloud.Result
+}
+
+// GetPasswordResult represent the result of a get os-server-password operation.
+type GetPasswordResult struct {
+	gophercloud.Result
+}
+
+// ExtractPassword gets the encrypted password.
+// If privateKey != nil the password is decrypted with the private key.
+// If privateKey == nil the encrypted password is returned and can be decrypted with:
+//   echo '<pwd>' | base64 -D | openssl rsautl -decrypt -inkey <private_key>
+func (r GetPasswordResult) ExtractPassword(privateKey *rsa.PrivateKey) (string, error) {
+	var s struct {
+		Password string `json:"password"`
+	}
+	err := r.ExtractInto(&s)
+	if err == nil && privateKey != nil && s.Password != "" {
+		return decryptPassword(s.Password, privateKey)
+	}
+	return s.Password, err
+}
+
+func decryptPassword(encryptedPassword string, privateKey *rsa.PrivateKey) (string, error) {
+	b64EncryptedPassword := make([]byte, base64.StdEncoding.DecodedLen(len(encryptedPassword)))
+
+	n, err := base64.StdEncoding.Decode(b64EncryptedPassword, []byte(encryptedPassword))
+	if err != nil {
+		return "", fmt.Errorf("Failed to base64 decode encrypted password: %s", err)
+	}
+	password, err := rsa.DecryptPKCS1v15(nil, privateKey, b64EncryptedPassword[0:n])
+	if err != nil {
+		return "", fmt.Errorf("Failed to decrypt password: %s", err)
+	}
+
+	return string(password), nil
+}
+
+// ExtractImageID gets the ID of the newly created server image from the header
+func (r CreateImageResult) ExtractImageID() (string, error) {
+	if r.Err != nil {
+		return "", r.Err
+	}
+	// Get the image id from the header
+	u, err := url.ParseRequestURI(r.Header.Get("Location"))
+	if err != nil {
+		return "", err
+	}
+	imageID := path.Base(u.Path)
+	if imageID == "." || imageID == "/" {
+		return "", fmt.Errorf("Failed to parse the ID of newly created image: %s", u)
+	}
+	return imageID, nil
+}
+
+// Extract interprets any RescueResult as an AdminPass, if possible.
+func (r RescueResult) Extract() (string, error) {
+	var s struct {
+		AdminPass string `json:"adminPass"`
+	}
+	err := r.ExtractInto(&s)
+	return s.AdminPass, err
+}
+
+// Server exposes only the standard OpenStack fields corresponding to a given server on the user's account.
+type Server struct {
+	// ID uniquely identifies this server amongst all other servers, including those not accessible to the current tenant.
+	ID string `json:"id"`
+	// TenantID identifies the tenant owning this server resource.
+	TenantID string `json:"tenant_id"`
+	// UserID uniquely identifies the user account owning the tenant.
+	UserID string `json:"user_id"`
+	// Name contains the human-readable name for the server.
+	Name string `json:"name"`
+	// Updated and Created contain ISO-8601 timestamps of when the state of the server last changed, and when it was created.
+	Updated time.Time `json:"updated"`
+	Created time.Time `json:"created"`
+	HostID  string    `json:"hostid"`
+	// Status contains the current operational status of the server, such as IN_PROGRESS or ACTIVE.
+	Status string `json:"status"`
+	// Progress ranges from 0..100.
+	// A request made against the server completes only once Progress reaches 100.
+	Progress int `json:"progress"`
+	// AccessIPv4 and AccessIPv6 contain the IP addresses of the server, suitable for remote access for administration.
+	AccessIPv4 string `json:"accessIPv4"`
+	AccessIPv6 string `json:"accessIPv6"`
+	// Image refers to a JSON object, which itself indicates the OS image used to deploy the server.
+	Image map[string]interface{} `json:"-"`
+	// Flavor refers to a JSON object, which itself indicates the hardware configuration of the deployed server.
+	Flavor map[string]interface{} `json:"flavor"`
+	// Addresses includes a list of all IP addresses assigned to the server, keyed by pool.
+	Addresses map[string]interface{} `json:"addresses"`
+	// Metadata includes a list of all user-specified key-value pairs attached to the server.
+	Metadata map[string]string `json:"metadata"`
+	// Links includes HTTP references to the itself, useful for passing along to other APIs that might want a server reference.
+	Links []interface{} `json:"links"`
+	// KeyName indicates which public key was injected into the server on launch.
+	KeyName string `json:"key_name"`
+	// AdminPass will generally be empty ("").  However, it will contain the administrative password chosen when provisioning a new server without a set AdminPass setting in the first place.
+	// Note that this is the ONLY time this field will be valid.
+	AdminPass string `json:"adminPass"`
+	// SecurityGroups includes the security groups that this instance has applied to it
+	SecurityGroups []map[string]interface{} `json:"security_groups"`
+}
+
+func (r *Server) UnmarshalJSON(b []byte) error {
+	type tmp Server
+	var s struct {
+		tmp
+		Image interface{} `json:"image"`
+	}
+	err := json.Unmarshal(b, &s)
+	if err != nil {
+		return err
+	}
+
+	*r = Server(s.tmp)
+
+	switch t := s.Image.(type) {
+	case map[string]interface{}:
+		r.Image = t
+	case string:
+		switch t {
+		case "":
+			r.Image = nil
+		}
+	}
+
+	return err
+}
+
+// ServerPage abstracts the raw results of making a List() request against the API.
+// As OpenStack extensions may freely alter the response bodies of structures returned to the client, you may only safely access the
+// data provided through the ExtractServers call.
+type ServerPage struct {
+	pagination.LinkedPageBase
+}
+
+// IsEmpty returns true if a page contains no Server results.
+func (r ServerPage) IsEmpty() (bool, error) {
+	s, err := ExtractServers(r)
+	return len(s) == 0, err
+}
+
+// NextPageURL uses the response's embedded link reference to navigate to the next page of results.
+func (r ServerPage) NextPageURL() (string, error) {
+	var s struct {
+		Links []gophercloud.Link `json:"servers_links"`
+	}
+	err := r.ExtractInto(&s)
+	if err != nil {
+		return "", err
+	}
+	return gophercloud.ExtractNextURL(s.Links)
+}
+
+// ExtractServers interprets the results of a single page from a List() call, producing a slice of Server entities.
+func ExtractServers(r pagination.Page) ([]Server, error) {
+	var s []Server
+	err := ExtractServersInto(r, &s)
+	return s, err
+}
+
+// MetadataResult contains the result of a call for (potentially) multiple key-value pairs.
+type MetadataResult struct {
+	gophercloud.Result
+}
+
+// GetMetadataResult temporarily contains the response from a metadata Get call.
+type GetMetadataResult struct {
+	MetadataResult
+}
+
+// ResetMetadataResult temporarily contains the response from a metadata Reset call.
+type ResetMetadataResult struct {
+	MetadataResult
+}
+
+// UpdateMetadataResult temporarily contains the response from a metadata Update call.
+type UpdateMetadataResult struct {
+	MetadataResult
+}
+
+// MetadatumResult contains the result of a call for individual a single key-value pair.
+type MetadatumResult struct {
+	gophercloud.Result
+}
+
+// GetMetadatumResult temporarily contains the response from a metadatum Get call.
+type GetMetadatumResult struct {
+	MetadatumResult
+}
+
+// CreateMetadatumResult temporarily contains the response from a metadatum Create call.
+type CreateMetadatumResult struct {
+	MetadatumResult
+}
+
+// DeleteMetadatumResult temporarily contains the response from a metadatum Delete call.
+type DeleteMetadatumResult struct {
+	gophercloud.ErrResult
+}
+
+// Extract interprets any MetadataResult as a Metadata, if possible.
+func (r MetadataResult) Extract() (map[string]string, error) {
+	var s struct {
+		Metadata map[string]string `json:"metadata"`
+	}
+	err := r.ExtractInto(&s)
+	return s.Metadata, err
+}
+
+// Extract interprets any MetadatumResult as a Metadatum, if possible.
+func (r MetadatumResult) Extract() (map[string]string, error) {
+	var s struct {
+		Metadatum map[string]string `json:"meta"`
+	}
+	err := r.ExtractInto(&s)
+	return s.Metadatum, err
+}
+
+// Address represents an IP address.
+type Address struct {
+	Version int    `json:"version"`
+	Address string `json:"addr"`
+}
+
+// AddressPage abstracts the raw results of making a ListAddresses() request against the API.
+// As OpenStack extensions may freely alter the response bodies of structures returned
+// to the client, you may only safely access the data provided through the ExtractAddresses call.
+type AddressPage struct {
+	pagination.SinglePageBase
+}
+
+// IsEmpty returns true if an AddressPage contains no networks.
+func (r AddressPage) IsEmpty() (bool, error) {
+	addresses, err := ExtractAddresses(r)
+	return len(addresses) == 0, err
+}
+
+// ExtractAddresses interprets the results of a single page from a ListAddresses() call,
+// producing a map of addresses.
+func ExtractAddresses(r pagination.Page) (map[string][]Address, error) {
+	var s struct {
+		Addresses map[string][]Address `json:"addresses"`
+	}
+	err := (r.(AddressPage)).ExtractInto(&s)
+	return s.Addresses, err
+}
+
+// NetworkAddressPage abstracts the raw results of making a ListAddressesByNetwork() request against the API.
+// As OpenStack extensions may freely alter the response bodies of structures returned
+// to the client, you may only safely access the data provided through the ExtractAddresses call.
+type NetworkAddressPage struct {
+	pagination.SinglePageBase
+}
+
+// IsEmpty returns true if a NetworkAddressPage contains no addresses.
+func (r NetworkAddressPage) IsEmpty() (bool, error) {
+	addresses, err := ExtractNetworkAddresses(r)
+	return len(addresses) == 0, err
+}
+
+// ExtractNetworkAddresses interprets the results of a single page from a ListAddressesByNetwork() call,
+// producing a slice of addresses.
+func ExtractNetworkAddresses(r pagination.Page) ([]Address, error) {
+	var s map[string][]Address
+	err := (r.(NetworkAddressPage)).ExtractInto(&s)
+	if err != nil {
+		return nil, err
+	}
+
+	var key string
+	for k := range s {
+		key = k
+	}
+
+	return s[key], err
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/urls.go

@@ -0,0 +1,51 @@
+package servers
+
+import "github.com/gophercloud/gophercloud"
+
+func createURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("servers")
+}
+
+func listURL(client *gophercloud.ServiceClient) string {
+	return createURL(client)
+}
+
+func listDetailURL(client *gophercloud.ServiceClient) string {
+	return client.ServiceURL("servers", "detail")
+}
+
+func deleteURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("servers", id)
+}
+
+func getURL(client *gophercloud.ServiceClient, id string) string {
+	return deleteURL(client, id)
+}
+
+func updateURL(client *gophercloud.ServiceClient, id string) string {
+	return deleteURL(client, id)
+}
+
+func actionURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("servers", id, "action")
+}
+
+func metadatumURL(client *gophercloud.ServiceClient, id, key string) string {
+	return client.ServiceURL("servers", id, "metadata", key)
+}
+
+func metadataURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("servers", id, "metadata")
+}
+
+func listAddressesURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("servers", id, "ips")
+}
+
+func listAddressesByNetworkURL(client *gophercloud.ServiceClient, id, network string) string {
+	return client.ServiceURL("servers", id, "ips", network)
+}
+
+func passwordURL(client *gophercloud.ServiceClient, id string) string {
+	return client.ServiceURL("servers", id, "os-server-password")
+}

src/cmd/linuxkit/vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/servers/util.go

@@ -0,0 +1,20 @@
+package servers
+
+import "github.com/gophercloud/gophercloud"
+
+// WaitForStatus will continually poll a server until it successfully transitions to a specified
+// status. It will do this for at most the number of seconds specified.
+func WaitForStatus(c *gophercloud.ServiceClient, id, status string, secs int) error {
+	return gophercloud.WaitFor(secs, func() (bool, error) {
+		current, err := Get(c, id).Extract()
+		if err != nil {
+			return false, err
+		}
+
+		if current.Status == status {
+			return true, nil
+		}
+
+		return false, nil
+	})
+}