fix: [M3-7741] - Hide error notices for $0 regions in Resize Pool and…

… Add a Node Pool drawers (#10157)

* Allow -zsh LKE prices without error notices in Resize Pool and Add Pool drawers

* Fix loading spinner displaying above what was supposed to be loading

* Fix conditional to render notice if either price is invalid

* Add test coverage

* Added changeset: Hide error notices for /bin/sh regions for LKE Resize and Add Node Pools

* Fix changeset wording

* Address feedback: use invalid price util

packages/manager/.changeset/pr-10157-fixed-1707328749030.md

@@ -0,0 +1,5 @@
+---
+"@linode/manager": Fixed
+---
+
+Error notices for $0 regions in LKE Resize and Add Node Pools drawers ([#10157](https://github.com/linode/manager/pull/10157))

packages/manager/cypress/e2e/core/kubernetes/lke-update.spec.ts

@@ -1011,4 +1011,229 @@ describe('LKE cluster updates for DC-specific prices', () => {
     // Confirm total price updates in Kube Specs: $14.40/mo existing pool + $28.80/mo new pool.
     cy.findByText('$43.20/month').should('be.visible');
   });
+
+  /*
+   * - Confirms node pool resize UI flow using mocked API responses.
+   * - Confirms that pool size can be changed.
+   * - Confirms that drawer reflects $0 pricing.
+   * - Confirms that details page still shows $0 pricing after resizing.
+   */
+  it('can resize pools with region prices of $0', () => {
+    const dcSpecificPricingRegion = getRegionById('us-southeast');
+
+    const mockCluster = kubernetesClusterFactory.build({
+      k8s_version: latestKubernetesVersion,
+      region: dcSpecificPricingRegion.id,
+      control_plane: {
+        high_availability: false,
+      },
+    });
+
+    const mockNodePoolResized = nodePoolFactory.build({
+      count: 3,
+      type: dcPricingMockLinodeTypes[2].id,
+      nodes: kubeLinodeFactory.buildList(3),
+    });
+
+    const mockNodePoolInitial = {
+      ...mockNodePoolResized,
+      count: 1,
+      nodes: [mockNodePoolResized.nodes[0]],
+    };
+
+    const mockLinodes: Linode[] = mockNodePoolResized.nodes.map(
+      (node: PoolNodeResponse): Linode => {
+        return linodeFactory.build({
+          id: node.instance_id ?? undefined,
+          ipv4: [randomIp()],
+          region: dcSpecificPricingRegion.id,
+          type: dcPricingMockLinodeTypes[2].id,
+        });
+      }
+    );
+
+    const mockNodePoolDrawerTitle = 'Resize Pool: Linode 2 GB Plan';
+
+    mockGetCluster(mockCluster).as('getCluster');
+    mockGetClusterPools(mockCluster.id, [mockNodePoolInitial]).as(
+      'getNodePools'
+    );
+    mockGetLinodes(mockLinodes).as('getLinodes');
+    mockGetLinodeType(dcPricingMockLinodeTypes[2]).as('getLinodeType');
+    mockGetKubernetesVersions().as('getVersions');
+    mockGetDashboardUrl(mockCluster.id);
+    mockGetApiEndpoints(mockCluster.id);
+
+    cy.visitWithLogin(`/kubernetes/clusters/${mockCluster.id}`);
+    cy.wait([
+      '@getCluster',
+      '@getNodePools',
+      '@getLinodes',
+      '@getVersions',
+      '@getLinodeType',
+    ]);
+
+    // Confirm that nodes are visible.
+    mockNodePoolInitial.nodes.forEach((node: PoolNodeResponse) => {
+      cy.get(`tr[data-qa-node-row="${node.id}"]`)
+        .should('be.visible')
+        .within(() => {
+          const nodeLinode = mockLinodes.find(
+            (linode: Linode) => linode.id === node.instance_id
+          );
+          if (nodeLinode) {
+            cy.findByText(nodeLinode.label).should('be.visible');
+          }
+        });
+    });
+
+    // Confirm total price is listed in Kube Specs.
+    cy.findByText('$0.00/month').should('be.visible');
+
+    // Click "Resize Pool" and increase size to 4 nodes.
+    ui.button
+      .findByTitle('Resize Pool')
+      .should('be.visible')
+      .should('be.enabled')
+      .click();
+
+    mockUpdateNodePool(mockCluster.id, mockNodePoolResized).as(
+      'resizeNodePool'
+    );
+    mockGetClusterPools(mockCluster.id, [mockNodePoolResized]).as(
+      'getNodePools'
+    );
+
+    ui.drawer
+      .findByTitle(mockNodePoolDrawerTitle)
+      .should('be.visible')
+      .within(() => {
+        ui.button
+          .findByTitle('Save Changes')
+          .should('be.visible')
+          .should('be.disabled');
+
+        cy.findByText('Current pool: $0/month (1 node at $0/month)').should(
+          'be.visible'
+        );
+        cy.findByText('Resized pool: $0/month (1 node at $0/month)').should(
+          'be.visible'
+        );
+
+        cy.findByLabelText('Add 1')
+          .should('be.visible')
+          .should('be.enabled')
+          .click()
+          .click()
+          .click();
+
+        cy.findByLabelText('Edit Quantity').should('have.value', '4');
+        cy.findByText('Current pool: $0/month (1 node at $0/month)').should(
+          'be.visible'
+        );
+        cy.findByText('Resized pool: $0/month (4 nodes at $0/month)').should(
+          'be.visible'
+        );
+
+        ui.button
+          .findByTitle('Save Changes')
+          .should('be.visible')
+          .should('be.enabled')
+          .click();
+      });
+
+    cy.wait(['@resizeNodePool', '@getNodePools']);
+
+    // Confirm total price is still $0 in Kube Specs.
+    cy.findByText('$0.00/month').should('be.visible');
+  });
+
+  /*
+   * - Confirms UI flow when adding node pools using mocked API responses.
+   * - Confirms that drawer reflects $0 prices.
+   * - Confirms that details page still shows $0 pricing after adding node pool.
+   */
+  it('can add node pools with region prices of $0', () => {
+    const dcSpecificPricingRegion = getRegionById('us-southeast');
+
+    const mockCluster = kubernetesClusterFactory.build({
+      k8s_version: latestKubernetesVersion,
+      region: dcSpecificPricingRegion.id,
+      control_plane: {
+        high_availability: false,
+      },
+    });
+
+    const mockNewNodePool = nodePoolFactory.build({
+      count: 2,
+      type: dcPricingMockLinodeTypes[2].id,
+      nodes: kubeLinodeFactory.buildList(2),
+    });
+
+    const mockNodePool = nodePoolFactory.build({
+      count: 1,
+      type: dcPricingMockLinodeTypes[2].id,
+      nodes: kubeLinodeFactory.buildList(1),
+    });
+
+    mockGetCluster(mockCluster).as('getCluster');
+    mockGetClusterPools(mockCluster.id, [mockNodePool]).as('getNodePools');
+    mockGetKubernetesVersions().as('getVersions');
+    mockAddNodePool(mockCluster.id, mockNewNodePool).as('addNodePool');
+    mockGetLinodeType(dcPricingMockLinodeTypes[2]).as('getLinodeType');
+    mockGetLinodeTypes(dcPricingMockLinodeTypes);
+    mockGetDashboardUrl(mockCluster.id);
+    mockGetApiEndpoints(mockCluster.id);
+
+    cy.visitWithLogin(`/kubernetes/clusters/${mockCluster.id}`);
+    cy.wait(['@getCluster', '@getNodePools', '@getVersions', '@getLinodeType']);
+
+    // Assert that initial node pool is shown on the page.
+    cy.findByText('Linode 2 GB', { selector: 'h2' }).should('be.visible');
+
+    // Confirm total price of $0 is listed in Kube Specs.
+    cy.findByText('$0.00/month').should('be.visible');
+
+    // Add a new node pool, select plan, submit form in drawer.
+    ui.button
+      .findByTitle('Add a Node Pool')
+      .should('be.visible')
+      .should('be.enabled')
+      .click();
+
+    mockGetClusterPools(mockCluster.id, [mockNodePool, mockNewNodePool]).as(
+      'getNodePools'
+    );
+
+    ui.drawer
+      .findByTitle(`Add a Node Pool: ${mockCluster.label}`)
+      .should('be.visible')
+      .within(() => {
+        cy.findByText('Linode 2 GB')
+          .should('be.visible')
+          .closest('tr')
+          .within(() => {
+            // Assert that $0 prices are displayed the plan table, then add a node pool with 2 linodes.
+            cy.findAllByText('$0').should('have.length', 2);
+            cy.findByLabelText('Add 1').should('be.visible').click().click();
+          });
+
+        // Assert that $0 prices are displayed as helper text.
+        cy.contains(
+          'This pool will add $0/month (2 nodes at $0/month) to this cluster.'
+        ).should('be.visible');
+
+        ui.button
+          .findByTitle('Add pool')
+          .should('be.visible')
+          .should('be.enabled')
+          .click();
+      });
+
+    // Wait for API responses.
+    cy.wait(['@addNodePool', '@getNodePools']);
+
+    // Confirm total price is still $0 in Kube Specs.
+    cy.findByText('$0.00/month').should('be.visible');
+  });
 });

packages/manager/cypress/support/constants/dc-specific-pricing.ts

@@ -75,9 +75,10 @@ export const dcPricingMockLinodeTypes = linodeTypeFactory.buildList(3, {
       monthly: 12.2,
     },
     {
-      hourly: 0.006,
+      // Mock a DC with $0 region prices, which is possible in some circumstances (e.g. Limited Availability).
+      hourly: 0.0,
       id: 'us-southeast',
-      monthly: 4.67,
+      monthly: 0.0,
     },
   ],
 });

packages/manager/src/features/Kubernetes/KubernetesClusterDetail/NodePoolsDisplay/AddNodePoolDrawer.tsx

@@ -1,4 +1,5 @@
 import { Theme } from '@mui/material/styles';
+import { isNumber } from 'lodash';
 import * as React from 'react';
 import { makeStyles } from 'tss-react/mui';
 
@@ -20,6 +21,7 @@ import { scrollErrorIntoView } from 'src/utilities/scrollErrorIntoView';
 
 import { KubernetesPlansPanel } from '../../KubernetesPlansPanel/KubernetesPlansPanel';
 import { nodeWarning } from '../../kubeUtils';
+import { hasInvalidNodePoolPrice } from './utils';
 
 import type { Region } from '@linode/api-v4';
 
@@ -102,10 +104,12 @@ export const AddNodePoolDrawer = (props: Props) => {
     ?.monthly;
 
   const totalPrice =
-    selectedTypeInfo && pricePerNode
+    selectedTypeInfo && isNumber(pricePerNode)
       ? selectedTypeInfo.count * pricePerNode
       : undefined;
 
+  const hasInvalidPrice = hasInvalidNodePoolPrice(pricePerNode, totalPrice);
+
   React.useEffect(() => {
     if (open) {
       resetDrawer();
@@ -199,7 +203,7 @@ export const AddNodePoolDrawer = (props: Props) => {
             />
           )}
 
-        {selectedTypeInfo && !totalPrice && !pricePerNode && (
+        {selectedTypeInfo && hasInvalidPrice && (
           <Notice
             spacingBottom={16}
             spacingTop={8}
@@ -229,7 +233,7 @@ export const AddNodePoolDrawer = (props: Props) => {
           )}
           <ActionsPanel
             primaryButtonProps={{
-              disabled: !selectedTypeInfo,
+              disabled: !selectedTypeInfo || hasInvalidPrice,
               label: 'Add pool',
               loading: isLoading,
               onClick: handleAdd,

packages/manager/src/features/Kubernetes/KubernetesClusterDetail/NodePoolsDisplay/ResizeNodePoolDrawer.test.tsx

@@ -26,18 +26,19 @@ describe('ResizeNodePoolDrawer', () => {
     await findByText(/linode 1 GB/i);
   });
 
-  it('should display a warning if the user tries to resize a node pool to < 3 nodes', () => {
-    const { getByText } = renderWithTheme(
+  it('should display a warning if the user tries to resize a node pool to < 3 nodes', async () => {
+    const { findByText } = renderWithTheme(
       <ResizeNodePoolDrawer {...props} nodePool={smallPool} />
     );
-    expect(getByText(/minimum of 3 nodes/i));
+    expect(await findByText(/minimum of 3 nodes/i));
   });
 
-  it('should display a warning if the user tries to resize to a smaller node count', () => {
-    const { getByTestId, getByText } = renderWithTheme(
+  it('should display a warning if the user tries to resize to a smaller node count', async () => {
+    const { findByTestId, getByText } = renderWithTheme(
       <ResizeNodePoolDrawer {...props} />
     );
-    const decrement = getByTestId('decrement-button');
+
+    const decrement = await findByTestId('decrement-button');
     fireEvent.click(decrement);
     expect(getByText(/resizing to fewer nodes/i));
   });