Add custom metrics form to dashboard

Use existing form to allow users to add custom metrics via the dashboard

app/assets/javascripts/monitoring/components/dashboard.vue

 <script>
-import { GlButton, GlDropdown, GlDropdownItem, GlLink } from '@gitlab/ui';
+import {
+  GlButton,
+  GlDropdown,
+  GlDropdownItem,
+  GlModal,
+  GlModalDirective,
+  GlLink,
+} from '@gitlab/ui';
 import _ from 'underscore';
 import { s__ } from '~/locale';
 import Icon from '~/vue_shared/components/icon.vue';
@@ -27,8 +34,11 @@ export default {
     GlDropdown,
     GlDropdownItem,
     GlLink,
+    GlModal,
+  },
+  directives: {
+    GlModalDirective,
   },
-
   props: {
     externalDashboardPath: {
       type: String,
@@ -102,6 +112,19 @@ export default {
       type: Boolean,
       required: true,
     },
+    customMetricsAvailable: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
+    customMetricsPath: {
+      type: String,
+      required: true,
+    },
+    validateQueryPath: {
+      type: String,
+      required: true,
+    },
   },
   data() {
     return {
@@ -111,8 +134,14 @@ export default {
       elWidth: 0,
       selectedTimeWindow: '',
       selectedTimeWindowKey: '',
+      formIsValid: null,
     };
   },
+  computed: {
+    canAddMetrics() {
+      return this.customMetricsAvailable && this.customMetricsPath.length;
+    },
+  },
   created() {
     this.service = new MonitoringService({
       metricsEndpoint: this.metricsEndpoint,
@@ -193,11 +222,20 @@ export default {
           this.state = 'unableToConnect';
         });
     },
+    hideAddMetricModal() {
+      this.$refs.addMetricModal.hide();
+    },
     onSidebarMutation() {
       setTimeout(() => {
         this.elWidth = this.$el.clientWidth;
       }, sidebarAnimationDuration);
     },
+    setFormValidity(isValid) {
+      this.formIsValid = isValid;
+    },
+    submitCustomMetricsForm() {
+      this.$refs.customMetricsForm.submit();
+    },
     activeTimeWindow(key) {
       return this.timeWindows[key] === this.selectedTimeWindow;
     },
@@ -205,11 +243,16 @@ export default {
       return `?time_window=${key}`;
     },
   },
+  addMetric: {
+    title: s__('Metrics|Add metric'),
+    modalId: 'add-metric',
+  },
 };
 </script>
 
 <template>
-  <div v-if="!showEmptyState" class="prometheus-graphs prepend-top-default">
+  <div v-if="!showEmptyState" class="prometheus-graphs">
+    <div class="gl-p-3 border-bottom bg-gray-light d-flex justify-content-between">
       <div
         v-if="environmentsEndpoint"
         class="dropdowns d-flex align-items-center justify-content-between"
@@ -225,7 +268,6 @@ export default {
             <gl-dropdown-item
               v-for="environment in store.environmentsData"
               :key="environment.id"
-            :href="environment.metrics_path"
               :active="environment.name === currentEnvironmentName"
               active-class="is-active"
               >{{ environment.name }}</gl-dropdown-item
@@ -247,9 +289,44 @@ export default {
             >
           </gl-dropdown>
         </div>
+      </div>
+      <div class="d-flex">
+        <div v-if="isEE && canAddMetrics">
+          <gl-button
+            v-gl-modal-directive="$options.addMetric.modalId"
+            class="js-add-metric-button text-success border-success"
+          >
+            {{ $options.addMetric.title }}
+          </gl-button>
+          <gl-modal
+            ref="addMetricModal"
+            :modal-id="$options.addMetric.modalId"
+            :title="$options.addMetric.title"
+          >
+            <form ref="customMetricsForm" :action="customMetricsPath" method="post">
+              <custom-metrics-form-fields
+                :validate-query-path="validateQueryPath"
+                form-operation="post"
+                @formValidation="setFormValidity"
+              />
+            </form>
+            <div slot="modal-footer">
+              <gl-button @click="hideAddMetricModal">
+                {{ __('Cancel') }}
+              </gl-button>
+              <gl-button
+                :disabled="!formIsValid"
+                variant="success"
+                @click="submitCustomMetricsForm"
+              >
+                {{ __('Save changes') }}
+              </gl-button>
+            </div>
+          </gl-modal>
+        </div>
         <gl-button
           v-if="externalDashboardPath.length"
-        class="js-external-dashboard-link"
+          class="js-external-dashboard-link prepend-left-8"
           variant="primary"
           :href="externalDashboardPath"
         >
@@ -257,6 +334,7 @@ export default {
           <icon name="external-link" />
         </gl-button>
       </div>
+    </div>
     <graph-group
       v-for="(groupData, index) in store.groups"
       :key="index"

app/assets/stylesheets/framework/common.scss

@@ -48,6 +48,10 @@
   color: $brand-info;
 }
 
+.bg-gray-light {
+  background-color: $gray-light;
+}
+
 .text-break-word {
   word-break: break-all;
 }
@@ -446,19 +450,13 @@ img.emoji {
 }
 
 /** COMMON SPACING CLASSES **/
-.gl-pl-0 { padding-left: 0; }
-.gl-pl-1 { padding-left: #{0.5 * $grid-size}; }
-.gl-pl-2 { padding-left: $grid-size; }
-.gl-pl-3 { padding-left: #{2 * $grid-size}; }
-.gl-pl-4 { padding-left: #{3 * $grid-size}; }
-.gl-pl-5 { padding-left: #{4 * $grid-size}; }
-
-.gl-pr-0 { padding-right: 0; }
-.gl-pr-1 { padding-right: #{0.5 * $grid-size}; }
-.gl-pr-2 { padding-right: $grid-size; }
-.gl-pr-3 { padding-right: #{2 * $grid-size}; }
-.gl-pr-4 { padding-right: #{3 * $grid-size}; }
-.gl-pr-5 { padding-right: #{4 * $grid-size}; }
+@each $index, $padding in $spacing-scale {
+  #{'.gl-p-#{$index}'} { padding: $padding; }
+  #{'.gl-pl-#{$index}'} { padding-left: $padding; }
+  #{'.gl-pr-#{$index}'} { padding-right: $padding; }
+  #{'.gl-pt-#{$index}'} { padding-top: $padding; }
+  #{'.gl-pb-#{$index}'} { padding-bottom: $padding; }
+}
 
 /**
  * Removes browser specific clear icon from input fields in

app/assets/stylesheets/framework/variables.scss

@@ -11,6 +11,14 @@ $default-transition-duration: 0.15s;
 $contextual-sidebar-width: 220px;
 $contextual-sidebar-collapsed-width: 50px;
 $toggle-sidebar-height: 48px;
+$spacing-scale: (
+  0: 0,
+  1: #{0.5 * $grid-size},
+  2: $grid-size,
+  3: #{2 * $grid-size},
+  4: #{3 * $grid-size},
+  5: #{4 * $grid-size}
+);
 
 /*
  * Color schema

ee/app/assets/javascripts/monitoring/components/dashboard.vue

 <script>
 import CeDashboard from '~/monitoring/components/dashboard.vue';
 import AlertWidget from './alert_widget.vue';
+import CustomMetricsFormFields from 'ee/custom_metrics/components/custom_metrics_form_fields.vue';
 
 export default {
   components: {
     AlertWidget,
+    CustomMetricsFormFields,
   },
   extends: CeDashboard,
   props: {
@@ -24,11 +26,6 @@ export default {
       allAlerts: {},
     };
   },
-  computed: {
-    alertsAvailable() {
-      return this.prometheusAlertsAvailable && this.alertsEndpoint;
-    },
-  },
   methods: {
     setAlerts(alertPath, alertAttributes) {
       if (alertAttributes) {

ee/app/assets/javascripts/monitoring/monitoring_bundle.js

@@ -6,6 +6,7 @@ export default () => {
 
   if (el && el.dataset) {
     initCeBundle({
+      customMetricsAvailable: parseBoolean(el.dataset.customMetricsAvailable),
       prometheusAlertsAvailable: parseBoolean(el.dataset.prometheusAlertsAvailable),
     });
   }

ee/spec/javascripts/monitoring/components/dashboard_spec.js

 import { shallowMount, createLocalVue } from '@vue/test-utils';
 import MockAdapter from 'axios-mock-adapter';
+import { GlModal } from '@gitlab/ui';
 import Dashboard from 'ee/monitoring/components/dashboard.vue';
 import axios from '~/lib/utils/axios_utils';
 import { metricsGroupsAPIResponse, mockApiEndpoint } from 'spec/monitoring/mock_data';
 import propsData from 'spec/monitoring/dashboard_spec';
 import AlertWidget from 'ee/monitoring/components/alert_widget.vue';
+import CustomMetricsFormFields from 'ee/custom_metrics/components/custom_metrics_form_fields.vue';
 
 describe('Dashboard', () => {
   let Component;
@@ -24,6 +26,7 @@ describe('Dashboard', () => {
     };
 
     mock = new MockAdapter(axios);
+    mock.onGet(mockApiEndpoint).reply(200, metricsGroupsAPIResponse);
     Component = localVue.extend(Dashboard);
   });
 
@@ -34,7 +37,6 @@ describe('Dashboard', () => {
   describe('metrics with alert', () => {
     describe('with license', () => {
       beforeEach(() => {
-        mock.onGet(mockApiEndpoint).reply(200, metricsGroupsAPIResponse);
         vm = shallowMount(Component, {
           propsData: {
             ...propsData,
@@ -56,7 +58,6 @@ describe('Dashboard', () => {
 
     describe('without license', () => {
       beforeEach(() => {
-        mock.onGet(mockApiEndpoint).reply(200, metricsGroupsAPIResponse);
         vm = shallowMount(Component, {
           propsData: {
             ...propsData,
@@ -76,4 +77,60 @@ describe('Dashboard', () => {
       });
     });
   });
+
+  describe('add custom metrics', () => {
+    describe('when not available', () => {
+      beforeEach(() => {
+        vm = shallowMount(Component, {
+          propsData: {
+            ...propsData,
+            customMetricsAvailable: false,
+            customMetricsPath: '/endpoint',
+            hasMetrics: true,
+            prometheusAlertsAvailable: true,
+            alertsEndpoint: '/endpoint',
+            showTimeWindowDropdown: false,
+          },
+        });
+      });
+
+      it('does not render add button on the dashboard', done => {
+        setTimeout(() => {
+          expect(vm.element.querySelector('.js-add-metric-button')).toBe(null);
+          done();
+        });
+      });
+    });
+
+    describe('when available', () => {
+      beforeEach(done => {
+        vm = shallowMount(Component, {
+          propsData: {
+            ...propsData,
+            customMetricsAvailable: true,
+            customMetricsPath: '/endpoint',
+            hasMetrics: true,
+            prometheusAlertsAvailable: true,
+            alertsEndpoint: '/endpoint',
+            showTimeWindowDropdown: false,
+          },
+        });
+
+        setTimeout(done);
+      });
+
+      it('renders add button on the dashboard', () => {
+        expect(vm.element.querySelector('.js-add-metric-button').innerText).toContain('Add metric');
+      });
+
+      it('uses modal for custom metrics form', () => {
+        expect(vm.find(GlModal).exists()).toBe(true);
+        expect(vm.find(GlModal).attributes().modalid).toBe('add-metric');
+      });
+
+      it('renders custom metrics form fields', () => {
+        expect(vm.find(CustomMetricsFormFields).exists()).toBe(true);
+      });
+    });
+  });
 });

locale/gitlab.pot

@@ -7800,6 +7800,9 @@ msgstr ""
 msgid "Metrics for environment"
 msgstr ""
 
+msgid "Metrics|Add metric"
+msgstr ""
+
 msgid "Metrics|Check out the CI/CD documentation on deploying to an environment"
 msgstr ""
 
@@ -13682,6 +13685,9 @@ msgstr ""
 msgid "View file @ "
 msgstr ""
 
+msgid "View full dashboard"
+msgstr ""
+
 msgid "View group labels"
 msgstr ""
 

spec/javascripts/monitoring/dashboard_spec.js

@@ -20,6 +20,9 @@ const propsData = {
   emptyUnableToConnectSvgPath: '/path/to/unable-to-connect.svg',
   environmentsEndpoint: '/root/hello-prometheus/environments/35',
   currentEnvironmentName: 'production',
+  customMetricsAvailable: false,
+  customMetricsPath: '',
+  validateQueryPath: '',
 };
 
 export default propsData;
@@ -163,7 +166,7 @@ describe('Dashboard', () => {
       });
     });
 
-    it('renders the environments dropdown with a single is-active element', done => {
+    it('renders the environments dropdown with a single active element', done => {
       const component = new DashboardComponent({
         el: document.querySelector('.prometheus-graphs'),
         propsData: {
@@ -178,7 +181,7 @@ describe('Dashboard', () => {
 
       setTimeout(() => {
         const dropdownItems = component.$el.querySelectorAll(
-          '.js-environments-dropdown .dropdown-item.is-active',
+          '.js-environments-dropdown .dropdown-item[active="true"]',
         );
 
         expect(dropdownItems.length).toEqual(1);