Merge pull request hashicorp#74 from stevenaldinger/issue/64

fixes issue/64: Add helms set-string option (set_string)

README.md

@@ -94,6 +94,11 @@ resource "helm_release" "my_database" {
         name = "mariadbPassword"
         value = "qux"
     }
+
+    set_string {
+        name = "image.tags"
+        value = "registry\\.io/terraform-provider-helm\\,example\\.io/terraform-provider-helm"
+    }
 }
 ```
 

helm/resource_release.go

@@ -88,6 +88,23 @@ func resourceRelease() *schema.Resource {
 					},
 				},
 			},
+			"set_string": {
+				Type:        schema.TypeSet,
+				Optional:    true,
+				Description: "Custom string values to be merge with the values.",
+				Elem: &schema.Resource{
+					Schema: map[string]*schema.Schema{
+						"name": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+						"value": {
+							Type:     schema.TypeString,
+							Required: true,
+						},
+					},
+				},
+			},
 			"namespace": {
 				Type:        schema.TypeString,
 				Optional:    true,
@@ -306,7 +323,7 @@ func resourceReleaseRead(d *schema.ResourceData, meta interface{}) error {
 		return err
 	}
 
-	//	d.Set("values_source_detected_md5", d.Get("values_sources_md5"))
+	//  d.Set("values_source_detected_md5", d.Get("values_sources_md5"))
 
 	return setIDAndMetadataFromRelease(d, r)
 }
@@ -520,6 +537,17 @@ func getValues(d *schema.ResourceData) ([]byte, error) {
 		}
 	}
 
+	for _, raw := range d.Get("set_string").(*schema.Set).List() {
+		set := raw.(map[string]interface{})
+
+		name := set["name"].(string)
+		value := set["value"].(string)
+
+		if err := strvals.ParseIntoString(fmt.Sprintf("%s=%s", name, value), base); err != nil {
+			return nil, fmt.Errorf("failed parsing key %q with value %s, %s", name, value, err)
+		}
+	}
+
 	yaml, err := yaml.Marshal(base)
 	if err == nil {
 		log.Printf("---[ values.yaml ]-----------------------------------\n%s\n", yaml)