feat: add devel options for helmcharts

api/types/helmchartargs.go

@@ -99,6 +99,9 @@ type HelmChart struct {
 
 	// debug enables debug output from the Helm chart inflator generator.
 	Debug bool `json:"debug,omitempty" yaml:"debug,omitempty"`
+
+	// allow for devel release to be used.
+	Devel bool `json:"devel,omitempty" yaml:"devel,omitempty"`
 }
 
 // HelmChartArgs contains arguments to helm.
@@ -194,5 +197,8 @@ func (h HelmChart) AsHelmArgs(absChartHome string) []string {
 	if h.Debug {
 		args = append(args, "--debug")
 	}
+	if h.Devel {
+		args = append(args, "--devel")
+	}
 	return args
 }