feat: startupOrder attribute

Author: arlac77

src/step.js

@@ -9,6 +9,24 @@ export class Step extends Service {
     return 'kronos-step';
   }
 
+  /**
+   * Order in which the step should be started.
+   * Higher numbers result in earlier startup
+   * @retrun {number} 1.0
+   */
+  static get startupOrder() {
+    return 1.0;
+  }
+
+  /**
+   * Order in which the step should be started.
+   * Higher numbers result in earlier startup
+   * return {number} delivered from the constructors startupOrder
+   */
+  get startupOrder() {
+    return this.constructor.startupOrder;
+  }
+
   /**
    * @return {String} separator between step name and endpoint name
    **/

tests/step-test.js

@@ -60,6 +60,7 @@ test('step static', t => {
   t.is(step.name, 'myStep2');
   t.is(step.type, 'out-step');
   t.is(step.description, 'my out-step description');
+  t.is(step.startupOrder, 1.0);
 });
 
 test('step start/stop', async t => {