improved port-forward error reporting (#4155)

Signed-off-by: Jim Ehrismann <jehrismann@mirantis.com>

src/main/routes/port-forward-route.ts

@@ -94,6 +94,10 @@ class PortForward {
       }
     });
 
+    this.process.stderr.on("data", (data) => {
+      logger.warn(`[PORT-FORWARD-ROUTE]: kubectl port-forward process stderr: ${data}`);
+    });
+
     const internalPort = await getPortFrom(this.process.stdout, {
       lineRegex: internalPortRegex,
     });

src/renderer/components/+network-services/service-port-component.tsx

@@ -101,7 +101,7 @@ export class ServicePortComponent extends React.Component<Props> {
         this.isPortForwarded = true;
       }
     } catch (error) {
-      Notifications.error("Error occurred starting port-forward, the local port may not be available");
+      Notifications.error(`Error occurred starting port-forward, the local port may not be available or the ${portForward.kind} ${portForward.name} may not be reachable`);
       this.checkExistingPortForwarding();
     } finally {
       this.waiting = false;

src/renderer/components/+workloads-pods/pod-container-port.tsx

@@ -105,7 +105,7 @@ export class PodContainerPort extends React.Component<Props> {
         this.isPortForwarded = true;
       }
     } catch (error) {
-      Notifications.error("Error occurred starting port-forward, the local port may not be available");
+      Notifications.error(`Error occurred starting port-forward, the local port may not be available or the ${portForward.kind} ${portForward.name} may not be reachable`);
       this.checkExistingPortForwarding();
     } finally {
       this.waiting = false;

src/renderer/port-forward/port-forward-dialog.tsx

@@ -112,7 +112,7 @@ export class PortForwardDialog extends Component<Props> {
         openPortForward(portForward);
       }
     } catch (err) {
-      Notifications.error("Error occurred starting port-forward, the local port may not be available");
+      Notifications.error(`Error occurred starting port-forward, the local port may not be available or the ${portForward.kind} ${portForward.name} may not be reachable`);
     } finally {
       close();
     }