Add refresh button to widgets UI

src/codeflare_sdk/common/widgets/test_widgets.py

@@ -296,6 +296,9 @@ def test_ray_cluster_manager_widgets_init(mocker, capsys):
     assert (
         ray_cluster_manager_instance.ray_dashboard_button == mock_button.return_value
     ), "ray_dashboard_button is not set correctly"
+    assert (
+        ray_cluster_manager_instance.refresh_data_button == mock_button.return_value
+    ), "refresh_data_button is not set correctly"
     assert (
         ray_cluster_manager_instance.raycluster_data_output == mock_output.return_value
     ), "raycluster_data_output is not set correctly"
@@ -310,6 +313,7 @@ def test_ray_cluster_manager_widgets_init(mocker, capsys):
     mock_delete_button = MagicMock()
     mock_list_jobs_button = MagicMock()
     mock_ray_dashboard_button = MagicMock()
+    mock_refresh_dataframe_button = MagicMock()
 
     mock_javascript = mocker.patch("codeflare_sdk.common.widgets.widgets.Javascript")
     ray_cluster_manager_instance.url_output = MagicMock()
@@ -332,6 +336,12 @@ def test_ray_cluster_manager_widgets_init(mocker, capsys):
         f'window.open("{mock_dashboard_uri.return_value}/#/jobs", "_blank");'
     )
 
+    # Simulate clicking the refresh data button
+    ray_cluster_manager_instance._on_refresh_data_button_click(
+        mock_refresh_dataframe_button
+    )
+    mock_fetch_cluster_data.assert_called_with(namespace)
+
     # Simulate clicking the Ray dashboard button
     ray_cluster_manager_instance.classification_widget.value = "test-cluster-1"
     ray_cluster_manager_instance._on_ray_dashboard_button_click(

src/codeflare_sdk/common/widgets/widgets.py

@@ -74,6 +74,12 @@ def __init__(self, ray_clusters_df: pd.DataFrame, namespace: str = None):
             tooltip="Open the Ray Dashboard in a new tab",
             layout=widgets.Layout(width="auto"),
         )
+        self.refresh_data_button = widgets.Button(
+            description="Refresh Data",
+            icon="refresh",
+            tooltip="Refresh the list of Ray Clusters",
+            layout=widgets.Layout(width="auto", left="1em"),
+        )
 
         # Set up interactions
         self._initialize_callbacks()
@@ -95,6 +101,7 @@ def _initialize_callbacks(self):
         self.ray_dashboard_button.on_click(
             lambda b: self._on_ray_dashboard_button_click(b)
         )
+        self.refresh_data_button.on_click(lambda b: self._on_refresh_button_click(b))
 
     def _trigger_initial_display(self):
         """
@@ -138,31 +145,17 @@ def _on_delete_button_click(self, b):
         _on_delete_button_click handles the event when the Delete Button is clicked, deleting the selected cluster.
         """
         cluster_name = self.classification_widget.value
-        namespace = self.ray_clusters_df[
-            self.ray_clusters_df["Name"] == self.classification_widget.value
-        ]["Namespace"].values[0]
 
-        _delete_cluster(cluster_name, namespace)
+        _delete_cluster(cluster_name, self.namespace)
 
         with self.user_output:
             self.user_output.clear_output()
             print(
-                f"Cluster {cluster_name} in the {namespace} namespace was deleted successfully."
+                f"Cluster {cluster_name} in the {self.namespace} namespace was deleted successfully."
             )
 
         # Refresh the dataframe
-        new_df = _fetch_cluster_data(namespace)
-        self.ray_clusters_df = new_df
-        if new_df.empty:
-            self.classification_widget.close()
-            self.delete_button.close()
-            self.list_jobs_button.close()
-            self.ray_dashboard_button.close()
-            with self.raycluster_data_output:
-                self.raycluster_data_output.clear_output()
-                print(f"No clusters found in the {namespace} namespace.")
-        else:
-            self.classification_widget.options = new_df["Name"].tolist()
+        self._refresh_dataframe()
 
     def _on_list_jobs_button_click(self, b):
         """
@@ -171,15 +164,12 @@ def _on_list_jobs_button_click(self, b):
         from codeflare_sdk import Cluster
 
         cluster_name = self.classification_widget.value
-        namespace = self.ray_clusters_df[
-            self.ray_clusters_df["Name"] == self.classification_widget.value
-        ]["Namespace"].values[0]
 
         # Suppress from Cluster Object initialisation widgets and outputs
         with widgets.Output(), contextlib.redirect_stdout(
             io.StringIO()
         ), contextlib.redirect_stderr(io.StringIO()):
-            cluster = Cluster(ClusterConfiguration(cluster_name, namespace))
+            cluster = Cluster(ClusterConfiguration(cluster_name, self.namespace))
         dashboard_url = cluster.cluster_dashboard_uri()
 
         with self.user_output:
@@ -197,15 +187,12 @@ def _on_ray_dashboard_button_click(self, b):
         from codeflare_sdk import Cluster
 
         cluster_name = self.classification_widget.value
-        namespace = self.ray_clusters_df[
-            self.ray_clusters_df["Name"] == self.classification_widget.value
-        ]["Namespace"].values[0]
 
         # Suppress from Cluster Object initialisation widgets and outputs
         with widgets.Output(), contextlib.redirect_stdout(
             io.StringIO()
         ), contextlib.redirect_stderr(io.StringIO()):
-            cluster = Cluster(ClusterConfiguration(cluster_name, namespace))
+            cluster = Cluster(ClusterConfiguration(cluster_name, self.namespace))
         dashboard_url = cluster.cluster_dashboard_uri()
 
         with self.user_output:
@@ -214,11 +201,42 @@ def _on_ray_dashboard_button_click(self, b):
         with self.url_output:
             display(Javascript(f'window.open("{dashboard_url}", "_blank");'))
 
+    def _on_refresh_data_button_click(self, b):
+        """
+        _on_refresh_button_click handles the event when the Refresh Data button is clicked, refreshing the list of Ray Clusters.
+        """
+        self.refresh_data_button.disabled = True
+        self._refresh_dataframe()
+        self.refresh_data_button.disabled = False
+
+    def _refresh_dataframe(self):
+        """
+        _refresh_data function refreshes the list of Ray Clusters.
+        """
+        new_df = _fetch_cluster_data(self.namespace)
+        self.ray_clusters_df = new_df
+        if new_df.empty:
+            self.classification_widget.close()
+            self.delete_button.close()
+            self.list_jobs_button.close()
+            self.ray_dashboard_button.close()
+            self.refresh_data_button.close()
+            with self.raycluster_data_output:
+                self.raycluster_data_output.clear_output()
+                print(f"No clusters found in the {self.namespace} namespace.")
+        else:
+            self.classification_widget.options = new_df["Name"].tolist()
+
     def display_widgets(self):
         display(widgets.VBox([self.classification_widget, self.raycluster_data_output]))
         display(
             widgets.HBox(
-                [self.delete_button, self.list_jobs_button, self.ray_dashboard_button]
+                [
+                    self.delete_button,
+                    self.list_jobs_button,
+                    self.ray_dashboard_button,
+                    self.refresh_data_button,
+                ]
             ),
             self.url_output,
             self.user_output,