builder/openstack: simplify by passing csp instead of accessor and api

builder/openstack/builder.go

@@ -60,19 +60,21 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	if err != nil {
 		return nil, err
 	}
-
-	// Setup the state bag and initial state for the steps
-	state := make(map[string]interface{})
-	state["config"] = b.config
-	state["accessor"] = auth
 	api := &gophercloud.ApiCriteria{
 		Name:      "cloudServersOpenStack",
 		Region:    "DFW",
 		VersionId: "2",
 		UrlChoice: gophercloud.PublicURL,
 	}
-	state["api"] = api
+	csp, err := gophercloud.ServersApi(auth, *api)
+	if err != nil {
+		return nil, err
+	}
 
+	// Setup the state bag and initial state for the steps
+	state := make(map[string]interface{})
+	state["config"] = b.config
+	state["csp"] = csp
 	state["hook"] = hook
 	state["ui"] = ui
 
@@ -85,7 +87,7 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 			SourceImage: b.config.SourceImage,
 		},
 		&common.StepConnectSSH{
-			SSHAddress:     SSHAddress(&auth, api, b.config.SSHPort),
+			SSHAddress:     SSHAddress(csp, b.config.SSHPort),
 			SSHConfig:      SSHConfig(b.config.SSHUsername),
 			SSHWaitTimeout: b.config.SSHTimeout(),
 		},

builder/openstack/server.go

@@ -23,8 +23,6 @@ type StateRefreshFunc func() (result interface{}, state string, progress int, er
 
 // StateChangeConf is the configuration struct used for `WaitForState`.
 type StateChangeConf struct {
-	Accessor  *gophercloud.Access
-	Api       *gophercloud.ApiCriteria
 	Pending   []string
 	Refresh   StateRefreshFunc
 	StepState map[string]interface{}
@@ -33,9 +31,8 @@ type StateChangeConf struct {
 
 // ServerStateRefreshFunc returns a StateRefreshFunc that is used to watch
 // an openstacn server.
-func ServerStateRefreshFunc(accessor *gophercloud.Access, api *gophercloud.ApiCriteria, s *gophercloud.Server) StateRefreshFunc {
+func ServerStateRefreshFunc(csp gophercloud.CloudServersProvider, s *gophercloud.Server) StateRefreshFunc {
 	return func() (interface{}, string, int, error) {
-		csp, err := gophercloud.ServersApi(accessor, *api)
 		resp, err := csp.ServerById(s.Id)
 		if err != nil {
 			log.Printf("Error on ServerStateRefresh: %s", err)

builder/openstack/ssh.go

@@ -11,14 +11,13 @@ import (
 
 // SSHAddress returns a function that can be given to the SSH communicator
 // for determining the SSH address based on the server AccessIPv4 setting..
-func SSHAddress(accessor *gophercloud.AccessProvider, api *gophercloud.ApiCriteria, port int) func(map[string]interface{}) (string, error) {
+func SSHAddress(csp gophercloud.CloudServersProvider, port int) func(map[string]interface{}) (string, error) {
 	return func(state map[string]interface{}) (string, error) {
 		for j := 0; j < 2; j++ {
 			s := state["server"].(*gophercloud.Server)
 			if s.AccessIPv4 != "" {
 				return fmt.Sprintf("%s:%d", s.AccessIPv4, port), nil
 			}
-			csp, err := gophercloud.ServersApi(*accessor, *api)
 			serverState, err := csp.ServerById(s.Id)
 
 			if err != nil {

builder/openstack/step_create_image.go

@@ -12,8 +12,7 @@ import (
 type stepCreateImage struct{}
 
 func (s *stepCreateImage) Run(state map[string]interface{}) multistep.StepAction {
-	accessor := state["accessor"].(*gophercloud.Access)
-	api := state["api"].(*gophercloud.ApiCriteria)
+	csp := state["csp"].(gophercloud.CloudServersProvider)
 	config := state["config"].(config)
 	server := state["server"].(*gophercloud.Server)
 	ui := state["ui"].(packer.Ui)
@@ -23,7 +22,6 @@ func (s *stepCreateImage) Run(state map[string]interface{}) multistep.StepAction
 	createOpts := gophercloud.CreateImage{
 		Name: config.ImageName,
 	}
-	csp, err := gophercloud.ServersApi(accessor, *api)
 	imageId, err := csp.CreateImage(server.Id, createOpts)
 	if err != nil {
 		err := fmt.Errorf("Error creating image: %s", err)
@@ -38,7 +36,7 @@ func (s *stepCreateImage) Run(state map[string]interface{}) multistep.StepAction
 
 	// Wait for the image to become ready
 	ui.Say("Waiting for image to become ready...")
-	if err := WaitForImage(accessor, api, imageId); err != nil {
+	if err := WaitForImage(csp, imageId); err != nil {
 		err := fmt.Errorf("Error waiting for image: %s", err)
 		state["error"] = err
 		ui.Error(err.Error())
@@ -53,9 +51,8 @@ func (s *stepCreateImage) Cleanup(map[string]interface{}) {
 }
 
 // WaitForImage waits for the given Image ID to become ready.
-func WaitForImage(accessor *gophercloud.Access, api *gophercloud.ApiCriteria, imageId string) error {
+func WaitForImage(csp gophercloud.CloudServersProvider, imageId string) error {
 	for {
-		csp, err := gophercloud.ServersApi(accessor, *api)
 		image, err := csp.ImageById(imageId)
 		if err != nil {
 			return err

builder/openstack/step_key_pair.go

@@ -15,14 +15,12 @@ type StepKeyPair struct {
 }
 
 func (s *StepKeyPair) Run(state map[string]interface{}) multistep.StepAction {
-	accessor := state["accessor"].(*gophercloud.Access)
-	api := state["api"].(*gophercloud.ApiCriteria)
+	csp := state["csp"].(gophercloud.CloudServersProvider)
 	ui := state["ui"].(packer.Ui)
 
 	ui.Say("Creating temporary keypair for this instance...")
 	keyName := fmt.Sprintf("packer %s", hex.EncodeToString(identifier.NewUUID().Raw()))
 	log.Printf("temporary keypair name: %s", keyName)
-	csp, err := gophercloud.ServersApi(accessor, *api)
 	keyResp, err := csp.CreateKeyPair(gophercloud.NewKeyPair{Name: keyName})
 	if err != nil {
 		state["error"] = fmt.Errorf("Error creating temporary keypair: %s", err)
@@ -45,13 +43,11 @@ func (s *StepKeyPair) Cleanup(state map[string]interface{}) {
 		return
 	}
 
-	accessor := state["accessor"].(*gophercloud.Access)
-	api := state["api"].(*gophercloud.ApiCriteria)
+	csp := state["csp"].(gophercloud.CloudServersProvider)
 	ui := state["ui"].(packer.Ui)
 
 	ui.Say("Deleting temporary keypair...")
-	csp, err := gophercloud.ServersApi(accessor, *api)
-	err = csp.DeleteKeyPair(s.keyName)
+	err := csp.DeleteKeyPair(s.keyName)
 	if err != nil {
 		ui.Error(fmt.Sprintf(
 			"Error cleaning up keypair. Please delete the key manually: %s", s.keyName))

builder/openstack/step_run_source_server.go

@@ -17,19 +17,10 @@ type StepRunSourceServer struct {
 }
 
 func (s *StepRunSourceServer) Run(state map[string]interface{}) multistep.StepAction {
-	accessor := state["accessor"].(*gophercloud.Access)
-	api := state["api"].(*gophercloud.ApiCriteria)
+	csp := state["csp"].(gophercloud.CloudServersProvider)
 	keyName := state["keyPair"].(string)
 	ui := state["ui"].(packer.Ui)
 
-	csp, err := gophercloud.ServersApi(accessor, *api)
-	if err != nil {
-		err := fmt.Errorf("Error connecting to api: %s", err)
-		state["error"] = err
-		ui.Error(err.Error())
-		return multistep.ActionHalt
-	}
-
 	// XXX - validate image and flavor is available
 
 	server := gophercloud.NewServer{
@@ -52,11 +43,9 @@ func (s *StepRunSourceServer) Run(state map[string]interface{}) multistep.StepAc
 
 	ui.Say(fmt.Sprintf("Waiting for server (%s) to become ready...", s.server.Id))
 	stateChange := StateChangeConf{
-		Accessor:  accessor,
-		Api:       api,
 		Pending:   []string{"BUILD"},
 		Target:    "ACTIVE",
-		Refresh:   ServerStateRefreshFunc(accessor, api, s.server),
+		Refresh:   ServerStateRefreshFunc(csp, s.server),
 		StepState: state,
 	}
 	latestServer, err := WaitForState(&stateChange)
@@ -78,18 +67,9 @@ func (s *StepRunSourceServer) Cleanup(state map[string]interface{}) {
 		return
 	}
 
-	accessor := state["accessor"].(*gophercloud.Access)
-	api := state["api"].(*gophercloud.ApiCriteria)
+	csp := state["csp"].(gophercloud.CloudServersProvider)
 	ui := state["ui"].(packer.Ui)
 
-	csp, err := gophercloud.ServersApi(accessor, *api)
-	if err != nil {
-		err := fmt.Errorf("Error connecting to api: %s", err)
-		state["error"] = err
-		ui.Error(err.Error())
-		return
-	}
-
 	ui.Say("Terminating the source server...")
 	if err := csp.DeleteServerById(s.server.Id); err != nil {
 		ui.Error(fmt.Sprintf("Error terminating server, may still be around: %s", err))
@@ -97,10 +77,8 @@ func (s *StepRunSourceServer) Cleanup(state map[string]interface{}) {
 	}
 
 	stateChange := StateChangeConf{
-		Accessor: accessor,
-		Api:      api,
 		Pending: []string{"ACTIVE", "BUILD", "REBUILD", "SUSPENDED"},
-		Refresh:  ServerStateRefreshFunc(accessor, api, s.server),
+		Refresh: ServerStateRefreshFunc(csp, s.server),
 		Target:  "DELETED",
 	}