Add restart route for atomicity

src/apptask.js

@@ -952,6 +952,27 @@ function stop(app, args, progressCallback, callback) {
     });
 }
 
+function restart(app, args, progressCallback, callback) {
+    assert.strictEqual(typeof app, 'object');
+    assert.strictEqual(typeof args, 'object');
+    assert.strictEqual(typeof progressCallback, 'function');
+    assert.strictEqual(typeof callback, 'function');
+
+    async.series([
+        progressCallback.bind(null, { percent: 20, message: 'Restarting container' }),
+        docker.restartContainer.bind(null, app.id),
+
+        progressCallback.bind(null, { percent: 100, message: 'Done' }),
+        updateApp.bind(null, app, { installationState: apps.ISTATE_INSTALLED, error: null, health: null })
+    ], function seriesDone(error) {
+        if (error) {
+            debugApp(app, 'error starting app: %s', error);
+            return updateApp(app, { installationState: apps.ISTATE_ERROR, error: makeTaskError(error, app) }, callback.bind(null, error));
+        }
+        callback(null);
+    });
+}
+
 function uninstall(app, args, progressCallback, callback) {
     assert.strictEqual(typeof app, 'object');
     assert.strictEqual(typeof args, 'object');
@@ -1029,6 +1050,8 @@ function run(appId, args, progressCallback, callback) {
             return start(app, args, progressCallback, callback);
         case apps.ISTATE_PENDING_STOP:
             return stop(app, args, progressCallback, callback);
+        case apps.ISTATE_PENDING_RESTART:
+            return restart(app, args, progressCallback, callback);
         default:
             debugApp(app, 'apptask launched with invalid command');
             return callback(new BoxError(BoxError.INTERNAL_ERROR, 'Unknown install command in apptask:' + app.installationState));