Make sure we always print and return any errors

builder/cloudstack/builder.go

@@ -88,17 +88,17 @@ func (b *Builder) Run(ui packer.Ui, hook packer.Hook, cache packer.Cache) (packe
 	// Run the steps.
 	b.runner.Run(state)
 
-	// If there are no templates, then just return
+	// If there was an error, return that
-	template, ok := state.Get("template").(*cloudstack.CreateTemplateResponse)
+	if rawErr, ok := state.GetOk("error"); ok {
-	if !ok || template == nil {
+		ui.Error(rawErr.(error).Error())
-		return nil, nil
+		return nil, rawErr.(error)
 	}
 
 	// Build the artifact and return it
 	artifact := &Artifact{
 		client:   client,
 		config:   b.config,
-		template: template,
+		template: state.Get("template").(*cloudstack.CreateTemplateResponse),
 	}
 
 	return artifact, nil

builder/cloudstack/step_configure_networking.go

@@ -47,7 +47,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 	// Retrieve the instance ID from the previously saved state.
 	instanceID, ok := state.Get("instance_id").(string)
 	if !ok || instanceID == "" {
-		ui.Error("Could not retrieve instance_id from state!")
+		state.Put("error", fmt.Errorf("Could not retrieve instance_id from state!"))
 		return multistep.ActionHalt
 	}
 
@@ -56,7 +56,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 		cloudstack.WithProject(config.Project),
 	)
 	if err != nil {
-		ui.Error(fmt.Sprintf("Failed to retrieve the network object: %s", err))
+		state.Put("error", fmt.Errorf("Failed to retrieve the network object: %s", err))
 		return multistep.ActionHalt
 	}
 
@@ -79,7 +79,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 		// Associate a new public IP address.
 		ipAddr, err := client.Address.AssociateIpAddress(p)
 		if err != nil {
-			ui.Error(fmt.Sprintf("Failed to associate public IP address: %s", err))
+			state.Put("error", fmt.Errorf("Failed to associate public IP address: %s", err))
 			return multistep.ActionHalt
 		}
 
@@ -117,7 +117,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 		ui.Message("Creating network ACL rule...")
 
 		if network.Aclid == "" {
-			ui.Error("Failed to configure the firewall: no ACL connected to the VPC network")
+			state.Put("error", fmt.Errorf("Failed to configure the firewall: no ACL connected to the VPC network"))
 			return multistep.ActionHalt
 		}
 
@@ -135,7 +135,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 		// Create the network ACL rule.
 		aclRule, err := client.NetworkACL.CreateNetworkACL(p)
 		if err != nil {
-			ui.Error(fmt.Sprintf("Failed to create network ACL rule: %s", err))
+			state.Put("error", fmt.Errorf("Failed to create network ACL rule: %s", err))
 			return multistep.ActionHalt
 		}
 
@@ -154,7 +154,7 @@ func (s *stepSetupNetworking) Run(state multistep.StateBag) multistep.StepAction
 
 		fwRule, err := client.Firewall.CreateFirewallRule(p)
 		if err != nil {
-			ui.Error(fmt.Sprintf("Failed to create firewall rule: %s", err))
+			state.Put("error", fmt.Errorf("Failed to create firewall rule: %s", err))
 			return multistep.ActionHalt
 		}
 

builder/cloudstack/step_create_instance.go

@@ -7,6 +7,7 @@ import (
 	"net"
 	"strings"
 
+	"github.com/hashicorp/packer/common"
 	"github.com/hashicorp/packer/packer"
 	"github.com/hashicorp/packer/template/interpolate"
 	"github.com/mitchellh/multistep"
@@ -61,7 +62,7 @@ func (s *stepCreateInstance) Run(state multistep.StateBag) multistep.StepAction
 	// Retrieve the zone object.
 	zone, _, err := client.Zone.GetZoneByID(config.Zone)
 	if err != nil {
-		ui.Error(err.Error())
+		state.Put("error", err)
 		return multistep.ActionHalt
 	}
 
@@ -77,27 +78,27 @@ func (s *stepCreateInstance) Run(state multistep.StateBag) multistep.StepAction
 
 	if config.UserData != "" {
 		httpPort := state.Get("http_port").(uint)
-		hostIp, err := hostIP()
+		httpIP, err := hostIP()
 		if err != nil {
-			ui.Error(err.Error())
+			state.Put("error", err)
 			return multistep.ActionHalt
 		}
+		common.SetHTTPIP(httpIP)
 
 		s.Ctx.Data = &userDataTemplateData{
-			hostIp,
+			httpIP,
 			httpPort,
 		}
 
 		renderedUserData, err := interpolate.Render(config.UserData, &s.Ctx)
 		if err != nil {
-			err := fmt.Errorf("Error rendering user_data: %s", err)
+			state.Put("error", fmt.Errorf("Error rendering user_data: %s", err))
-			ui.Error(err.Error())
 			return multistep.ActionHalt
 		}
 
 		ud, err := getUserData(renderedUserData, config.HTTPGetOnly)
 		if err != nil {
-			ui.Error(err.Error())
+			state.Put("error", err)
 			return multistep.ActionHalt
 		}
 
@@ -107,7 +108,7 @@ func (s *stepCreateInstance) Run(state multistep.StateBag) multistep.StepAction
 	// Create the new instance.
 	instance, err := client.VirtualMachine.DeployVirtualMachine(p)
 	if err != nil {
-		ui.Error(fmt.Sprintf("Error creating new instance %s: %s", config.InstanceName, err))
+		state.Put("error", fmt.Errorf("Error creating new instance %s: %s", config.InstanceName, err))
 		return multistep.ActionHalt
 	}
 

builder/cloudstack/step_create_template.go

@@ -21,7 +21,7 @@ func (s *stepCreateTemplate) Run(state multistep.StateBag) multistep.StepAction
 	// Retrieve the instance ID from the previously saved state.
 	instanceID, ok := state.Get("instance_id").(string)
 	if !ok || instanceID == "" {
-		ui.Error("Could not retrieve instance_id from state!")
+		state.Put("error", fmt.Errorf("Could not retrieve instance_id from state!"))
 		return multistep.ActionHalt
 	}
 
@@ -50,7 +50,7 @@ func (s *stepCreateTemplate) Run(state multistep.StateBag) multistep.StepAction
 	ui.Message("Retrieving the ROOT volume ID...")
 	volumeID, err := getRootVolumeID(client, instanceID)
 	if err != nil {
-		ui.Error(err.Error())
+		state.Put("error", err)
 		return multistep.ActionHalt
 	}
 
@@ -60,7 +60,7 @@ func (s *stepCreateTemplate) Run(state multistep.StateBag) multistep.StepAction
 	ui.Message("Creating the new template...")
 	template, err := client.Template.CreateTemplate(p)
 	if err != nil {
-		ui.Error(fmt.Sprintf("Error creating the new template %s: %s", config.TemplateName, err))
+		state.Put("error", fmt.Errorf("Error creating the new template %s: %s", config.TemplateName, err))
 		return multistep.ActionHalt
 	}
 
@@ -72,7 +72,7 @@ func (s *stepCreateTemplate) Run(state multistep.StateBag) multistep.StepAction
 
 	ui.Message("Template has been created!")
 
-	// Store the template ID.
+	// Store the template.
 	state.Put("template", template)
 
 	return multistep.ActionContinue

builder/cloudstack/step_prepare_config.go

@@ -133,7 +133,7 @@ func (s *stepPrepareConfig) Run(state multistep.StateBag) multistep.StepAction {
 	// an interface with type *packer.MultiError and value nil which is different then a
 	// nil interface.
 	if errs != nil && len(errs.Errors) > 0 {
-		ui.Error(errs.Error())
+		state.Put("error", errs)
 		return multistep.ActionHalt
 	}
 

builder/cloudstack/step_shutdown_instance.go

@@ -20,7 +20,7 @@ func (s *stepShutdownInstance) Run(state multistep.StateBag) multistep.StepActio
 	// Retrieve the instance ID from the previously saved state.
 	instanceID, ok := state.Get("instance_id").(string)
 	if !ok || instanceID == "" {
-		ui.Error("Could not retrieve instance_id from state!")
+		state.Put("error", fmt.Errorf("Could not retrieve instance_id from state!"))
 		return multistep.ActionHalt
 	}
 
@@ -30,7 +30,7 @@ func (s *stepShutdownInstance) Run(state multistep.StateBag) multistep.StepActio
 	// Shutdown the virtual machine.
 	_, err := client.VirtualMachine.StopVirtualMachine(p)
 	if err != nil {
-		ui.Error(fmt.Sprintf("Error shutting down instance %s: %s", config.InstanceName, err))
+		state.Put("error", fmt.Errorf("Error shutting down instance %s: %s", config.InstanceName, err))
 		return multistep.ActionHalt
 	}