scaleway: add 'bootscript' configuration parameter

builder/scaleway/config.go

@@ -29,6 +29,7 @@ type Config struct {
 	SnapshotName string `mapstructure:"snapshot_name"`
 	ImageName    string `mapstructure:"image_name"`
 	ServerName   string `mapstructure:"server_name"`
+	Bootscript   string `mapstructure:"bootscript"`
 
 	UserAgent string
 	ctx       interpolate.Context

builder/scaleway/step_create_server.go

@@ -20,9 +20,14 @@ func (s *stepCreateServer) Run(_ context.Context, state multistep.StateBag) mult
 	c := state.Get("config").(Config)
 	sshPubKey := state.Get("ssh_pubkey").(string)
 	tags := []string{}
+	var bootscript *string
 
 	ui.Say("Creating server...")
 
+	if c.Bootscript != "" {
+		bootscript = &c.Bootscript
+	}
+
 	if sshPubKey != "" {
 		tags = []string{fmt.Sprintf("AUTHORIZED_KEY=%s", strings.TrimSpace(sshPubKey))}
 	}
@@ -33,6 +38,7 @@ func (s *stepCreateServer) Run(_ context.Context, state multistep.StateBag) mult
 		Organization:   c.Organization,
 		CommercialType: c.CommercialType,
 		Tags:           tags,
+		Bootscript:     bootscript,
 	})
 
 	if err != nil {