feat: added retry timeout options

README.md

@@ -44,7 +44,9 @@ There is an example packer build with goss tests in the `example/` directory.
     "vars_file": "",
     "username": "",
     "password": "",
-    "debug": false
+    "debug": false,
+    "retry_timeout": "0s",
+    "sleep": "1s"
   }
 ]
 ```

packer-provisioner-goss.go

@@ -29,11 +29,15 @@ type GossConfig struct {
 	// An array of tests to run.
 	Tests []string
 
+	// Goss options for retry and timeouts
+	RetryTimeout string `mapstructure:"retry_timeout"`
+	Sleep        string `mapstructure:"sleep"`
+
 	// Use Sudo
 	UseSudo bool `mapstructure:"use_sudo"`
 
 	// skip ssl check flag
-	SkipSSLChk   bool `mapstructure:"skip_ssl"`
+	SkipSSLChk bool `mapstructure:"skip_ssl"`
 
 	// The --gossfile flag
 	GossFile string `mapstructure:"goss_file"`
@@ -252,11 +256,12 @@ func (p *Provisioner) installGoss(ui packer.Ui, comm packer.Communicator) error
 
 // runGoss runs the Goss tests
 func (p *Provisioner) runGoss(ui packer.Ui, comm packer.Communicator) error {
-	goss := fmt.Sprintf("%s", p.config.DownloadPath)
 	cmd := &packer.RemoteCmd{
 		Command: fmt.Sprintf(
-			"cd %s && %s %s %s %s %s validate %s",
-			p.config.RemotePath, p.enableSudo(), goss, p.config.GossFile, p.vars(), p.debug(), p.format()),
+			"cd %s && %s %s %s %s %s validate --retry-timeout %s --sleep %s %s",
+			p.config.RemotePath, p.enableSudo(), p.config.DownloadPath, p.config.GossFile,
+			p.vars(), p.debug(), p.retryTimeout(), p.sleep(), p.format(),
+		),
 	}
 	if err := cmd.StartWithUi(comm, ui); err != nil {
 		return err
@@ -268,6 +273,20 @@ func (p *Provisioner) runGoss(ui packer.Ui, comm packer.Communicator) error {
 	return nil
 }
 
+func (p *Provisioner) retryTimeout() string {
+	if p.config.RetryTimeout == "" {
+		return "0s" // goss default
+	}
+	return p.config.RetryTimeout
+}
+
+func (p *Provisioner) sleep() string {
+	if p.config.Sleep == "" {
+		return "1s" // goss default
+	}
+	return p.config.Sleep
+}
+
 // debug returns the debug flag if debug is configured
 func (p *Provisioner) debug() string {
 	if p.config.Debug {
@@ -292,7 +311,7 @@ func (p *Provisioner) vars() string {
 
 func (p *Provisioner) sslFlag(cmdType string) string {
 	if p.config.SkipSSLChk {
-		switch(cmdType) {
+		switch cmdType {
 		case "curl":
 			return "-k"
 		case "wget":
@@ -315,7 +334,7 @@ func (p *Provisioner) enableSudo() string {
 // Deal with curl & wget username and password
 func (p *Provisioner) userPass(cmdType string) string {
 	if p.config.Username != "" {
-		switch(cmdType) {
+		switch cmdType {
 		case "curl":
 			if p.config.Password == "" {
 				return fmt.Sprintf("-u %s", p.config.Username)
@@ -327,7 +346,7 @@ func (p *Provisioner) userPass(cmdType string) string {
 			}
 			return fmt.Sprintf("--user=%s --password=%s", p.config.Username, p.config.Password)
 		default:
-			return  ""
+			return ""
 		}
 	}
 	return ""