Merge branch 'cherry-pick-5ea675be' into 'master'

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

+<script>
+  /* global Flash */
+  import _ from 'underscore';
+  import statusCodes from '../../lib/utils/http_status';
+  import MonitoringService from '../services/monitoring_service';
+  import monitoringRow from './monitoring_row.vue';
+  import monitoringState from './monitoring_state.vue';
+  import MonitoringStore from '../stores/monitoring_store';
+  import eventHub from '../event_hub';
+
+  export default {
+
+    data() {
+      const metricsData = document.querySelector('#prometheus-graphs').dataset;
+      const store = new MonitoringStore();
+
+      return {
+        store,
+        state: 'gettingStarted',
+        hasMetrics: gl.utils.convertPermissionToBoolean(metricsData.hasMetrics),
+        documentationPath: metricsData.documentationPath,
+        settingsPath: metricsData.settingsPath,
+        endpoint: metricsData.additionalMetrics,
+        deploymentEndpoint: metricsData.deploymentEndpoint,
+        showEmptyState: true,
+        backOffRequestCounter: 0,
+        updateAspectRatio: false,
+        updatedAspectRatios: 0,
+        resizeThrottled: {},
+      };
+    },
+
+    components: {
+      monitoringRow,
+      monitoringState,
+    },
+
+    methods: {
+      getGraphsData() {
+        const maxNumberOfRequests = 3;
+        this.state = 'loading';
+        gl.utils.backOff((next, stop) => {
+          this.service.get().then((resp) => {
+            if (resp.status === statusCodes.NO_CONTENT) {
+              this.backOffRequestCounter = this.backOffRequestCounter += 1;
+              if (this.backOffRequestCounter < maxNumberOfRequests) {
+                next();
+              } else {
+                stop(new Error('Failed to connect to the prometheus server'));
+              }
+            } else {
+              stop(resp);
+            }
+          }).catch(stop);
+        })
+        .then((resp) => {
+          if (resp.status === statusCodes.NO_CONTENT) {
+            this.state = 'unableToConnect';
+            return false;
+          }
+          return resp.json();
+        })
+        .then((metricGroupsData) => {
+          if (!metricGroupsData) return false;
+          this.store.storeMetrics(metricGroupsData.data);
+          return this.getDeploymentData();
+        })
+        .then((deploymentData) => {
+          if (deploymentData !== false) {
+            this.store.storeDeploymentData(deploymentData.deployments);
+            this.showEmptyState = false;
+          }
+          return {};
+        })
+        .catch(() => {
+          this.state = 'unableToConnect';
+        });
+      },
+
+      getDeploymentData() {
+        return this.service.getDeploymentData(this.deploymentEndpoint)
+          .then(resp => resp.json())
+          .catch(() => new Flash('Error getting deployment information.'));
+      },
+
+      resize() {
+        this.updateAspectRatio = true;
+      },
+
+      toggleAspectRatio() {
+        this.updatedAspectRatios = this.updatedAspectRatios += 1;
+        if (this.store.getMetricsCount() === this.updatedAspectRatios) {
+          this.updateAspectRatio = !this.updateAspectRatio;
+          this.updatedAspectRatios = 0;
+        }
+      },
+
+    },
+
+    created() {
+      this.service = new MonitoringService(this.endpoint);
+      eventHub.$on('toggleAspectRatio', this.toggleAspectRatio);
+    },
+
+    beforeDestroy() {
+      eventHub.$off('toggleAspectRatio', this.toggleAspectRatio);
+      window.removeEventListener('resize', this.resizeThrottled, false);
+    },
+
+    mounted() {
+      this.resizeThrottled = _.throttle(this.resize, 600);
+      if (!this.hasMetrics) {
+        this.state = 'gettingStarted';
+      } else {
+        this.getGraphsData();
+        window.addEventListener('resize', this.resizeThrottled, false);
+      }
+    },
+  };
+</script>
+<template>
+  <div 
+    class="prometheus-graphs" 
+    v-if="!showEmptyState">
+    <div 
+      class="row"
+      v-for="(groupData, index) in store.groups"
+      :key="index">
+      <div 
+        class="col-md-12">
+        <div 
+          class="panel panel-default prometheus-panel">
+          <div 
+            class="panel-heading">
+            <h4>{{groupData.group}}</h4>
+          </div>
+          <div 
+            class="panel-body">
+            <monitoring-row
+              v-for="(row, index) in groupData.metrics" 
+              :key="index"
+              :row-data="row"
+              :update-aspect-ratio="updateAspectRatio"
+              :deployment-data="store.deploymentData"
+            />
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+  <monitoring-state 
+    :selected-state="state"
+    :documentation-path="documentationPath"
+    :settings-path="settingsPath"
+    v-else
+  />
+</template>

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

+<script>
+  /* global Breakpoints */
+  import d3 from 'd3';
+  import monitoringLegends from './monitoring_legends.vue';
+  import monitoringFlag from './monitoring_flag.vue';
+  import monitoringDeployment from './monitoring_deployment.vue';
+  import MonitoringMixin from '../mixins/monitoring_mixins';
+  import eventHub from '../event_hub';
+  import measurements from '../utils/measurements';
+  import { formatRelevantDigits } from '../../lib/utils/number_utils';
+
+  const bisectDate = d3.bisector(d => d.time).left;
+
+  export default {
+    props: {
+      columnData: {
+        type: Object,
+        required: true,
+      },
+      classType: {
+        type: String,
+        required: true,
+      },
+      updateAspectRatio: {
+        type: Boolean,
+        required: true,
+      },
+      deploymentData: {
+        type: Array,
+        required: true,
+      },
+    },
+
+    mixins: [MonitoringMixin],
+
+    data() {
+      return {
+        graphHeight: 500,
+        graphWidth: 600,
+        graphHeightOffset: 120,
+        xScale: {},
+        yScale: {},
+        margin: {},
+        data: [],
+        breakpointHandler: Breakpoints.get(),
+        unitOfDisplay: '',
+        areaColorRgb: '#8fbce8',
+        lineColorRgb: '#1f78d1',
+        yAxisLabel: '',
+        legendTitle: '',
+        reducedDeploymentData: [],
+        area: '',
+        line: '',
+        measurements: measurements.large,
+        currentData: {
+          time: new Date(),
+          value: 0,
+        },
+        currentYCoordinate: 0,
+        currentXCoordinate: 0,
+        currentFlagPosition: 0,
+        metricUsage: '',
+        showFlag: false,
+        showDeployInfo: true,
+      };
+    },
+
+    components: {
+      monitoringLegends,
+      monitoringFlag,
+      monitoringDeployment,
+    },
+
+    computed: {
+      outterViewBox() {
+        return `0 0 ${this.graphWidth} ${this.graphHeight}`;
+      },
+
+      innerViewBox() {
+        if ((this.graphWidth - 150) > 0) {
+          return `0 0 ${this.graphWidth - 150} ${this.graphHeight}`;
+        }
+        return '0 0 0 0';
+      },
+
+      axisTransform() {
+        return `translate(70, ${this.graphHeight - 100})`;
+      },
+
+      paddingBottomRootSvg() {
+        return (Math.ceil(this.graphHeight * 100) / this.graphWidth) || 0;
+      },
+    },
+
+    methods: {
+      draw() {
+        const breakpointSize = this.breakpointHandler.getBreakpointSize();
+        const query = this.columnData.queries[0];
+        this.margin = measurements.large.margin;
+        if (breakpointSize === 'xs' || breakpointSize === 'sm') {
+          this.graphHeight = 300;
+          this.margin = measurements.small.margin;
+          this.measurements = measurements.small;
+        }
+        this.data = query.result[0].values;
+        this.unitOfDisplay = query.unit || 'N/A';
+        this.yAxisLabel = this.columnData.y_axis || 'Values';
+        this.legendTitle = query.legend || 'Average';
+        this.graphWidth = this.$refs.baseSvg.clientWidth -
+                     this.margin.left - this.margin.right;
+        this.graphHeight = this.graphHeight - this.margin.top - this.margin.bottom;
+        if (this.data !== undefined) {
+          this.renderAxesPaths();
+          this.formatDeployments();
+        }
+      },
+
+      handleMouseOverGraph(e) {
+        let point = this.$refs.graphData.createSVGPoint();
+        point.x = e.clientX;
+        point.y = e.clientY;
+        point = point.matrixTransform(this.$refs.graphData.getScreenCTM().inverse());
+        point.x = point.x += 7;
+        const timeValueOverlay = this.xScale.invert(point.x);
+        const overlayIndex = bisectDate(this.data, timeValueOverlay, 1);
+        const d0 = this.data[overlayIndex - 1];
+        const d1 = this.data[overlayIndex];
+        if (d0 === undefined || d1 === undefined) return;
+        const evalTime = timeValueOverlay - d0[0] > d1[0] - timeValueOverlay;
+        this.currentData = evalTime ? d1 : d0;
+        this.currentXCoordinate = Math.floor(this.xScale(this.currentData.time));
+        const currentDeployXPos = this.mouseOverDeployInfo(point.x);
+        this.currentYCoordinate = this.yScale(this.currentData.value);
+
+        if (this.currentXCoordinate > (this.graphWidth - 200)) {
+          this.currentFlagPosition = this.currentXCoordinate - 103;
+        } else {
+          this.currentFlagPosition = this.currentXCoordinate;
+        }
+
+        if (currentDeployXPos) {
+          this.showFlag = false;
+        } else {
+          this.showFlag = true;
+        }
+
+        this.metricUsage = `${formatRelevantDigits(this.currentData.value)} ${this.unitOfDisplay}`;
+      },
+
+      renderAxesPaths() {
+        const axisXScale = d3.time.scale()
+          .range([0, this.graphWidth]);
+        this.yScale = d3.scale.linear()
+          .range([this.graphHeight - this.graphHeightOffset, 0]);
+        axisXScale.domain(d3.extent(this.data, d => d.time));
+        this.yScale.domain([0, d3.max(this.data.map(d => d.value))]);
+
+        const xAxis = d3.svg.axis()
+          .scale(axisXScale)
+          .ticks(measurements.ticks)
+          .orient('bottom');
+
+        const yAxis = d3.svg.axis()
+          .scale(this.yScale)
+          .ticks(measurements.ticks)
+          .orient('left');
+
+        d3.select(this.$refs.baseSvg).select('.x-axis').call(xAxis);
+
+        const width = this.graphWidth;
+        d3.select(this.$refs.baseSvg).select('.y-axis').call(yAxis)
+          .selectAll('.tick')
+          .each(function createTickLines() {
+            d3.select(this).select('line').attr('x2', width);
+          }); // This will select all of the ticks once they're rendered
+
+        this.xScale = d3.time.scale()
+          .range([0, this.graphWidth - 70]);
+
+        this.xScale.domain(d3.extent(this.data, d => d.time));
+
+        const areaFunction = d3.svg.area()
+          .x(d => this.xScale(d.time))
+          .y0(this.graphHeight - this.graphHeightOffset)
+          .y1(d => this.yScale(d.value))
+          .interpolate('linear');
+
+        const lineFunction = d3.svg.line()
+          .x(d => this.xScale(d.time))
+          .y(d => this.yScale(d.value));
+
+        this.line = lineFunction(this.data);
+
+        this.area = areaFunction(this.data);
+      },
+    },
+
+    watch: {
+      updateAspectRatio() {
+        if (this.updateAspectRatio) {
+          this.graphHeight = 500;
+          this.graphWidth = 600;
+          this.measurements = measurements.large;
+          this.draw();
+          eventHub.$emit('toggleAspectRatio');
+        }
+      },
+    },
+
+    mounted() {
+      this.draw();
+    },
+  };
+</script>
+<template>
+  <div 
+    :class="classType">
+    <h5 
+      class="text-center">
+        {{columnData.title}}
+    </h5>
+    <div 
+      class="prometheus-svg-container">
+      <svg 
+        :viewBox="outterViewBox"
+        :style="{ 'padding-bottom': paddingBottomRootSvg }"
+        ref="baseSvg">
+        <g
+          class="x-axis"
+          :transform="axisTransform">
+        </g>
+        <g
+          class="y-axis"
+          transform="translate(70, 20)">
+        </g>
+        <monitoring-legends 
+          :graph-width="graphWidth"
+          :graph-height="graphHeight"
+          :margin="margin"
+          :measurements="measurements"
+          :area-color-rgb="areaColorRgb"
+          :legend-title="legendTitle"
+          :y-axis-label="yAxisLabel"
+          :metric-usage="metricUsage"
+        />
+        <svg 
+          class="graph-data"
+          :viewBox="innerViewBox"
+          ref="graphData">
+            <path
+              class="metric-area"
+              :d="area"
+              :fill="areaColorRgb"
+              transform="translate(-5, 20)">
+            </path>
+            <path
+              class="metric-line"
+              :d="line"
+              :stroke="lineColorRgb"
+              fill="none"
+              stroke-width="2"
+              transform="translate(-5, 20)">
+            </path>
+            <rect 
+              class="prometheus-graph-overlay"
+              :width="(graphWidth - 70)"
+              :height="(graphHeight - 100)"
+              transform="translate(-5, 20)"
+              ref="graphOverlay"
+              @mousemove="handleMouseOverGraph($event)">
+            </rect>
+            <monitoring-deployment
+              :show-deploy-info="showDeployInfo"
+              :deployment-data="reducedDeploymentData"
+              :graph-height="graphHeight"
+              :graph-height-offset="graphHeightOffset"
+            />
+            <monitoring-flag 
+              v-if="showFlag"
+              :current-x-coordinate="currentXCoordinate"
+              :current-y-coordinate="currentYCoordinate"
+              :current-data="currentData"
+              :current-flag-position="currentFlagPosition"
+              :graph-height="graphHeight"
+              :graph-height-offset="graphHeightOffset"
+            />
+        </svg>
+      </svg>
+    </div>
+  </div>
+</template>

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

+<script>
+  import {
+      dateFormat,
+      timeFormat,
+    } from '../constants';
+
+  export default {
+    props: {
+      showDeployInfo: {
+        type: Boolean,
+        required: true,
+      },
+      deploymentData: {
+        type: Array,
+        required: true,
+      },
+      graphHeight: {
+        type: Number,
+        required: true,
+      },
+      graphHeightOffset: {
+        type: Number,
+        required: true,
+      },
+    },
+
+    computed: {
+      calculatedHeight() {
+        return this.graphHeight - this.graphHeightOffset;
+      },
+    },
+
+    methods: {
+      refText(d) {
+        return d.tag ? d.ref : d.sha.slice(0, 6);
+      },
+
+      formatTime(deploymentTime) {
+        return timeFormat(deploymentTime);
+      },
+
+      formatDate(deploymentTime) {
+        return dateFormat(deploymentTime);
+      },
+
+      nameDeploymentClass(deployment) {
+        return `deploy-info-${deployment.id}`;
+      },
+
+      transformDeploymentGroup(deployment) {
+        return `translate(${Math.floor(deployment.xPos) + 1}, 20)`;
+      },
+    },
+  };
+</script>
+<template>
+  <g
+    class="deploy-info"
+    v-if="showDeployInfo">
+    <g
+      v-for="(deployment, index) in deploymentData" 
+      :key="index"
+      :class="nameDeploymentClass(deployment)"
+      :transform="transformDeploymentGroup(deployment)">
+      <rect
+        x="0"
+        y="0"
+        :height="calculatedHeight"
+        width="3"
+        fill="url(#shadow-gradient)">
+      </rect>
+      <line
+        class="deployment-line"
+        x1="0"
+        y1="0"
+        x2="0"
+        :y2="calculatedHeight"
+        stroke="#000">
+      </line>
+      <svg
+        v-if="deployment.showDeploymentFlag"
+        class="js-deploy-info-box"
+        x="3"
+        y="0"
+        width="92"
+        height="60">
+        <rect
+          class="rect-text-metric deploy-info-rect rect-metric"
+          x="1"
+          y="1"
+          rx="2"
+          width="90"
+          height="58">
+        </rect>
+        <g 
+          transform="translate(5, 2)">
+          <text
+            class="deploy-info-text text-metric-bold">
+            {{refText(deployment)}}
+          </text>
+        </g>
+        <text
+          class="deploy-info-text"
+          y="18"
+          transform="translate(5, 2)">
+          {{formatDate(deployment.time)}}
+        </text>
+        <text
+          class="deploy-info-text text-metric-bold"
+          y="38"
+          transform="translate(5, 2)">
+          {{formatTime(deployment.time)}}
+        </text>
+      </svg>
+    </g>
+    <svg
+      height="0"
+      width="0">
+      <defs>
+        <linearGradient
+          id="shadow-gradient">
+          <stop
+            offset="0%"
+            stop-color="#000"
+            stop-opacity="0.4">
+          </stop>
+          <stop
+            offset="100%"
+            stop-color="#000"
+            stop-opacity="0">
+          </stop>
+        </linearGradient>
+      </defs>
+    </svg>
+  </g>
+</template>

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

+<script>
+  import {
+      dateFormat,
+      timeFormat,
+    } from '../constants';
+
+  export default {
+    props: {
+      currentXCoordinate: {
+        type: Number,
+        required: true,
+      },
+      currentYCoordinate: {
+        type: Number,
+        required: true,
+      },
+      currentFlagPosition: {
+        type: Number,
+        required: true,
+      },
+      currentData: {
+        type: Object,
+        required: true,
+      },
+      graphHeight: {
+        type: Number,
+        required: true,
+      },
+      graphHeightOffset: {
+        type: Number,
+        required: true,
+      },
+    },
+
+    data() {
+      return {
+        circleColorRgb: '#8fbce8',
+      };
+    },
+
+    computed: {
+      formatTime() {
+        return timeFormat(this.currentData.time);
+      },
+
+      formatDate() {
+        return dateFormat(this.currentData.time);
+      },
+
+      calculatedHeight() {
+        return this.graphHeight - this.graphHeightOffset;
+      },
+    },
+  };
+</script>
+<template>
+  <g class="mouse-over-flag">
+    <line
+      class="selected-metric-line"
+      :x1="currentXCoordinate"
+      :y1="0"
+      :x2="currentXCoordinate"
+      :y2="calculatedHeight"
+      transform="translate(-5, 20)">
+    </line>
+    <circle
+      class="circle-metric"
+      :fill="circleColorRgb"
+      stroke="#000"
+      :cx="currentXCoordinate"
+      :cy="currentYCoordinate"
+      r="5"
+      transform="translate(-5, 20)">
+    </circle>
+    <svg 
+      class="rect-text-metric"
+      :x="currentFlagPosition"
+      y="0">
+      <rect
+        class="rect-metric"
+        x="4"
+        y="1"
+        rx="2"
+        width="90"
+        height="40"
+        transform="translate(-3, 20)">
+      </rect>
+      <text
+        class="text-metric text-metric-bold"
+        x="8"
+        y="35"
+        transform="translate(-5, 20)">
+        {{formatTime}}
+      </text>
+      <text
+        class="text-metric-date"
+        x="8"
+        y="15"
+        transform="translate(-5, 20)">
+        {{formatDate}}
+      </text>
+    </svg>
+  </g>
+</template>

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

+<script>
+  export default {
+    props: {
+      graphWidth: {
+        type: Number,
+        required: true,
+      },
+      graphHeight: {
+        type: Number,
+        required: true,
+      },
+      margin: {
+        type: Object,
+        required: true,
+      },
+      measurements: {
+        type: Object,
+        required: true,
+      },
+      areaColorRgb: {
+        type: String,
+        required: true,
+      },
+      legendTitle: {
+        type: String,
+        required: true,
+      },
+      yAxisLabel: {
+        type: String,
+        required: true,
+      },
+      metricUsage: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return {
+        yLabelWidth: 0,
+        yLabelHeight: 0,
+      };
+    },
+    computed: {
+      textTransform() {
+        const yCoordinate = (((this.graphHeight - this.margin.top)
+                          + this.measurements.axisLabelLineOffset) / 2) || 0;
+
+        return `translate(15, ${yCoordinate}) rotate(-90)`;
+      },
+
+      rectTransform() {
+        const yCoordinate = ((this.graphHeight - this.margin.top) / 2)
+                            + (this.yLabelWidth / 2) + 10 || 0;
+
+        return `translate(0, ${yCoordinate}) rotate(-90)`;
+      },
+
+      xPosition() {
+        return (((this.graphWidth + this.measurements.axisLabelLineOffset) / 2)
+               - this.margin.right) || 0;
+      },
+
+      yPosition() {
+        return ((this.graphHeight - this.margin.top) + this.measurements.axisLabelLineOffset) || 0;
+      },
+    },
+    mounted() {
+      this.$nextTick(() => {
+        const bbox = this.$refs.ylabel.getBBox();
+        this.yLabelWidth = bbox.width + 10; // Added some padding
+        this.yLabelHeight = bbox.height + 5;
+      });
+    },
+  };
+</script>
+<template>
+  <g 
+    class="axis-label-container">
+    <line
+      class="label-x-axis-line"
+      stroke="#000000"
+      stroke-width="1"
+      x1="10"
+      :y1="yPosition"
+      :x2="graphWidth + 20"
+      :y2="yPosition">
+    </line>
+    <line
+      class="label-y-axis-line"
+      stroke="#000000"
+      stroke-width="1"
+      x1="10"
+      y1="0"
+      :x2="10"
+      :y2="yPosition">
+    </line>
+    <rect
+      class="rect-axis-text"
+      :transform="rectTransform"
+      :width="yLabelWidth"
+      :height="yLabelHeight">
+    </rect>
+    <text 
+      class="label-axis-text y-label-text"
+      text-anchor="middle"
+      :transform="textTransform"
+      ref="ylabel">
+      {{yAxisLabel}}
+    </text>
+    <rect
+      class="rect-axis-text"
+      :x="xPosition + 50"
+      :y="graphHeight - 80"
+      width="50"
+      height="50">
+    </rect>
+    <text
+      class="label-axis-text"
+      :x="xPosition + 60"
+      :y="yPosition"
+      dy=".35em">
+      Time
+    </text>
+    <rect
+      :fill="areaColorRgb"
+      :width="measurements.legends.width"
+      :height="measurements.legends.height"
+      x="20"
+      :y="graphHeight - measurements.legendOffset">
+    </rect>
+    <text
+      class="text-metric-title"
+      x="50"
+      :y="graphHeight - 40">
+      {{legendTitle}}
+    </text>
+    <text
+      class="text-metric-usage"
+      x="50"
+      :y="graphHeight - 25">
+      {{metricUsage}}
+    </text>
+  </g>
+</template>

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

+<script>
+  import monitoringColumn from './monitoring_column.vue';
+
+  export default {
+    props: {
+      rowData: {
+        type: Array,
+        required: true,
+      },
+      updateAspectRatio: {
+        type: Boolean,
+        required: true,
+      },
+      deploymentData: {
+        type: Array,
+        required: true,
+      },
+    },
+    components: {
+      monitoringColumn,
+    },
+    computed: {
+      bootstrapClass() {
+        return this.rowData.length >= 2 ? 'col-md-6' : 'col-md-12';
+      },
+    },
+  };
+</script>
+<template>
+  <div 
+    class="prometheus-row row">
+    <monitoring-column
+      v-for="(column, index) in rowData" 
+      :column-data="column"
+      :class-type="bootstrapClass"
+      :key="index"
+      :update-aspect-ratio="updateAspectRatio"
+      :deployment-data="deploymentData"
+    />
+  </div>
+</template>

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

+<script>
+  import gettingStartedSvg from 'empty_states/monitoring/_getting_started.svg';
+  import loadingSvg from 'empty_states/monitoring/_loading.svg';
+  import unableToConnectSvg from 'empty_states/monitoring/_unable_to_connect.svg';
+
+  export default {
+    props: {
+      documentationPath: {
+        type: String,
+        required: true,
+      },
+      settingsPath: {
+        type: String,
+        required: false,
+        default: '',
+      },
+      selectedState: {
+        type: String,
+        required: true,
+      },
+    },
+    data() {
+      return {
+        states: {
+          gettingStarted: {
+            svg: gettingStartedSvg,
+            title: 'Get started with performance monitoring',
+            description: 'Stay updated about the performance and health of your environment by configuring Prometheus to monitor your deployments.',
+            buttonText: 'Configure Prometheus',
+          },
+          loading: {
+            svg: loadingSvg,
+            title: 'Waiting for performance data',
+            description: 'Creating graphs uses the data from the Prometheus server. If this takes a long time, ensure that data is available.',
+            buttonText: 'View documentation',
+          },
+          unableToConnect: {
+            svg: unableToConnectSvg,
+            title: 'Unable to connect to Prometheus server',
+            description: 'Ensure connectivity is available from the GitLab server to the ',
+            buttonText: 'View documentation',
+          },
+        },
+      };
+    },
+    computed: {
+      currentState() {
+        return this.states[this.selectedState];
+      },
+
+      buttonPath() {
+        if (this.selectedState === 'gettingStarted') {
+          return this.settingsPath;
+        }
+        return this.documentationPath;
+      },
+
+      showButtonDescription() {
+        if (this.selectedState === 'unableToConnect') return true;
+        return false;
+      },
+    },
+  };
+</script>
+<template>
+  <div 
+    class="prometheus-state">
+    <div 
+      class="row">
+      <div 
+        class="col-md-4 col-md-offset-4 state-svg" 
+        v-html="currentState.svg">
+      </div>
+    </div>
+    <div 
+      class="row">
+      <div 
+        class="col-md-6 col-md-offset-3">
+        <h4 
+          class="text-center state-title">
+          {{currentState.title}}
+        </h4>
+      </div>
+    </div>
+    <div 
+      class="row">
+      <div 
+        class="col-md-6 col-md-offset-3">
+        <div 
+          class="description-text text-center state-description">
+            {{currentState.description}}
+            <a 
+              :href="settingsPath"
+              v-if="showButtonDescription">
+              Prometheus server
+            </a>
+        </div>
+      </div>
+    </div>
+    <div 
+      class="row state-button-section">
+      <div 
+        class="col-md-4 col-md-offset-4 text-center state-button">
+        <a 
+          class="btn btn-success" 
+          :href="buttonPath">
+            {{currentState.buttonText}}
+        </a>
+      </div>
+    </div>
+  </div>
+</template>

app/assets/javascripts/monitoring/deployments.js

-/* global Flash */
-import d3 from 'd3';
-import {
-  dateFormat,
-  timeFormat,
-} from './constants';
-
-export default class Deployments {
-  constructor(width, height) {
-    this.width = width;
-    this.height = height;
-
-    this.endpoint = document.getElementById('js-metrics').dataset.deploymentEndpoint;
-
-    this.createGradientDef();
-  }
-
-  init(chartData) {
-    this.chartData = chartData;
-
-    this.x = d3.time.scale().range([0, this.width]);
-    this.x.domain(d3.extent(this.chartData, d => d.time));
-
-    this.charts = d3.selectAll('.prometheus-graph');
-
-    this.getData();
-  }
-
-  getData() {
-    $.ajax({
-      url: this.endpoint,
-      dataType: 'JSON',
-    })
-    .fail(() => new Flash('Error getting deployment information.'))
-    .done((data) => {
-      this.data = data.deployments.reduce((deploymentDataArray, deployment) => {
-        const time = new Date(deployment.created_at);
-        const xPos = Math.floor(this.x(time));
-
-        time.setSeconds(this.chartData[0].time.getSeconds());
-
-        if (xPos >= 0) {
-          deploymentDataArray.push({
-            id: deployment.id,
-            time,
-            sha: deployment.sha,
-            tag: deployment.tag,
-            ref: deployment.ref.name,
-            xPos,
-          });
-        }
-
-        return deploymentDataArray;
-      }, []);
-
-      this.plotData();
-    });
-  }
-
-  plotData() {
-    this.charts.each((d, i) => {
-      const svg = d3.select(this.charts[0][i]);
-      const chart = svg.select('.graph-container');
-      const key = svg.node().getAttribute('graph-type');
-
-      this.createLine(chart, key);
-      this.createDeployInfoBox(chart, key);
-    });
-  }
-
-  createGradientDef() {
-    const defs = d3.select('body')
-      .append('svg')
-      .attr({
-        height: 0,
-        width: 0,
-      })
-      .append('defs');
-
-    defs.append('linearGradient')
-      .attr({
-        id: 'shadow-gradient',
-      })
-      .append('stop')
-      .attr({
-        offset: '0%',
-        'stop-color': '#000',
-        'stop-opacity': 0.4,
-      })
-      .select(this.selectParentNode)
-      .append('stop')
-      .attr({
-        offset: '100%',
-        'stop-color': '#000',
-        'stop-opacity': 0,
-      });
-  }
-
-  createLine(chart, key) {
-    chart.append('g')
-      .attr({
-        class: 'deploy-info',
-      })
-      .selectAll('.deploy-info')
-      .data(this.data)
-      .enter()
-      .append('g')
-      .attr({
-        class: d => `deploy-info-${d.id}-${key}`,
-        transform: d => `translate(${Math.floor(d.xPos) + 1}, 0)`,
-      })
-      .append('rect')
-      .attr({
-        x: 1,
-        y: 0,
-        height: this.height + 1,
-        width: 3,
-        fill: 'url(#shadow-gradient)',
-      })
-      .select(this.selectParentNode)
-      .append('line')
-      .attr({
-        class: 'deployment-line',
-        x1: 0,
-        x2: 0,
-        y1: 0,
-        y2: this.height + 1,
-      });
-  }
-
-  createDeployInfoBox(chart, key) {
-    chart.selectAll('.deploy-info')
-      .selectAll('.js-deploy-info-box')
-      .data(this.data)
-      .enter()
-      .select(d => document.querySelector(`.deploy-info-${d.id}-${key}`))
-      .append('svg')
-      .attr({
-        class: 'js-deploy-info-box hidden',
-        x: 3,
-        y: 0,
-        width: 92,
-        height: 60,
-      })
-      .append('rect')
-      .attr({
-        class: 'rect-text-metric deploy-info-rect rect-metric',
-        x: 1,
-        y: 1,
-        rx: 2,
-        width: 90,
-        height: 58,
-      })
-      .select(this.selectParentNode)
-      .append('g')
-      .attr({
-        transform: 'translate(5, 2)',
-      })
-      .append('text')
-      .attr({
-        class: 'deploy-info-text text-metric-bold',
-      })
-      .text(Deployments.refText)
-      .select(this.selectParentNode)
-      .append('text')
-      .attr({
-        class: 'deploy-info-text',
-        y: 18,
-      })
-      .text(d => dateFormat(d.time))
-      .select(this.selectParentNode)
-      .append('text')
-      .attr({
-        class: 'deploy-info-text text-metric-bold',
-        y: 38,
-      })
-      .text(d => timeFormat(d.time));
-  }
-
-  static toggleDeployTextbox(deploy, key, showInfoBox) {
-    d3.selectAll(`.deploy-info-${deploy.id}-${key} .js-deploy-info-box`)
-      .classed('hidden', !showInfoBox);
-  }
-
-  mouseOverDeployInfo(mouseXPos, key) {
-    if (!this.data) return false;
-
-    let dataFound = false;
-
-    this.data.forEach((d) => {
-      if (d.xPos >= mouseXPos - 10 && d.xPos <= mouseXPos + 10 && !dataFound) {
-        dataFound = d.xPos + 1;
-
-        Deployments.toggleDeployTextbox(d, key, true);
-      } else {
-        Deployments.toggleDeployTextbox(d, key, false);
-      }
-    });
-
-    return dataFound;
-  }
-
-  /* `this` is bound to the D3 node */
-  selectParentNode() {
-    return this.parentNode;
-  }
-
-  static refText(d) {
-    return d.tag ? d.ref : d.sha.slice(0, 6);
-  }
-}

app/assets/javascripts/monitoring/event_hub.js

+import Vue from 'vue';
+
+export default new Vue();

app/assets/javascripts/monitoring/mixins/monitoring_mixins.js

+const mixins = {
+  methods: {
+    mouseOverDeployInfo(mouseXPos) {
+      if (!this.reducedDeploymentData) return false;
+
+      let dataFound = false;
+      this.reducedDeploymentData = this.reducedDeploymentData.map((d) => {
+        const deployment = d;
+        if (d.xPos >= mouseXPos - 10 && d.xPos <= mouseXPos + 10 && !dataFound) {
+          dataFound = d.xPos + 1;
+
+          deployment.showDeploymentFlag = true;
+        } else {
+          deployment.showDeploymentFlag = false;
+        }
+        return deployment;
+      });
+
+      return dataFound;
+    },
+    formatDeployments() {
+      this.reducedDeploymentData = this.deploymentData.reduce((deploymentDataArray, deployment) => {
+        const time = new Date(deployment.created_at);
+        const xPos = Math.floor(this.xScale(time));
+
+        time.setSeconds(this.data[0].time.getSeconds());
+
+        if (xPos >= 0) {
+          deploymentDataArray.push({
+            id: deployment.id,
+            time,
+            sha: deployment.sha,
+            tag: deployment.tag,
+            ref: deployment.ref.name,
+            xPos,
+            showDeploymentFlag: false,
+          });
+        }
+
+        return deploymentDataArray;
+      }, []);
+    },
+  },
+};
+
+export default mixins;

app/assets/javascripts/monitoring/monitoring_bundle.js

-import PrometheusGraph from './prometheus_graph';
+import Vue from 'vue';
+import Monitoring from './components/monitoring.vue';
 
-document.addEventListener('DOMContentLoaded', function onLoad() {
-  document.removeEventListener('DOMContentLoaded', onLoad, false);
-  return new PrometheusGraph();
-}, false);
+document.addEventListener('DOMContentLoaded', () => new Vue({
+  el: '#prometheus-graphs',
+  components: {
+    'monitoring-dashboard': Monitoring,
+  },
+  render: createElement => createElement('monitoring-dashboard'),
+}));

app/assets/javascripts/monitoring/prometheus_graph.js

-/* eslint-disable no-new */
-/* global Flash */
-
-import d3 from 'd3';
-import statusCodes from '~/lib/utils/http_status';
-import Deployments from './deployments';
-import '../lib/utils/common_utils';
-import { formatRelevantDigits } from '../lib/utils/number_utils';
-import '../flash';
-import {
-  dateFormat,
-  timeFormat,
-} from './constants';
-
-const prometheusContainer = '.prometheus-container';
-const prometheusParentGraphContainer = '.prometheus-graphs';
-const prometheusGraphsContainer = '.prometheus-graph';
-const prometheusStatesContainer = '.prometheus-state';
-const metricsEndpoint = 'metrics.json';
-const bisectDate = d3.bisector(d => d.time).left;
-const extraAddedWidthParent = 100;
-
-class PrometheusGraph {
-  constructor() {
-    const $prometheusContainer = $(prometheusContainer);
-    const hasMetrics = $prometheusContainer.data('has-metrics');
-    this.docLink = $prometheusContainer.data('doc-link');
-    this.integrationLink = $prometheusContainer.data('prometheus-integration');
-    this.state = '';
-
-    $(document).ajaxError(() => {});
-
-    if (hasMetrics) {
-      this.margin = { top: 80, right: 180, bottom: 80, left: 100 };
-      this.marginLabelContainer = { top: 40, right: 0, bottom: 40, left: 0 };
-      const parentContainerWidth = $(prometheusGraphsContainer).parent().width() +
-      extraAddedWidthParent;
-      this.originalWidth = parentContainerWidth;
-      this.originalHeight = 330;
-      this.width = parentContainerWidth - this.margin.left - this.margin.right;
-      this.height = this.originalHeight - this.margin.top - this.margin.bottom;
-      this.backOffRequestCounter = 0;
-      this.deployments = new Deployments(this.width, this.height);
-      this.configureGraph();
-      this.init();
-    } else {
-      const prevState = this.state;
-      this.state = '.js-getting-started';
-      this.updateState(prevState);
-    }
-  }
-
-  createGraph() {
-    Object.keys(this.graphSpecificProperties).forEach((key) => {
-      const value = this.graphSpecificProperties[key];
-      if (value.data.length > 0) {
-        this.plotValues(key);
-      }
-    });
-  }
-
-  init() {
-    return this.getData().then((metricsResponse) => {
-      let enoughData = true;
-      if (typeof metricsResponse === 'undefined') {
-        enoughData = false;
-      } else {
-        Object.keys(metricsResponse.metrics).forEach((key) => {
-          if (key === 'cpu_values' || key === 'memory_values') {
-            const currentData = (metricsResponse.metrics[key])[0];
-            if (currentData.values.length <= 2) {
-              enoughData = false;
-            }
-          }
-        });
-      }
-      if (enoughData) {
-        $(prometheusStatesContainer).hide();
-        $(prometheusParentGraphContainer).show();
-        this.transformData(metricsResponse);
-        this.createGraph();
-
-        const firstMetricData = this.graphSpecificProperties[
-          Object.keys(this.graphSpecificProperties)[0]
-        ].data;
-
-        this.deployments.init(firstMetricData);
-      }
-    });
-  }
-
-  plotValues(key) {
-    const graphSpecifics = this.graphSpecificProperties[key];
-
-    const x = d3.time.scale()
-        .range([0, this.width]);
-
-    const y = d3.scale.linear()
-        .range([this.height, 0]);
-
-    graphSpecifics.xScale = x;
-    graphSpecifics.yScale = y;
-
-    const prometheusGraphContainer = `${prometheusGraphsContainer}[graph-type=${key}]`;
-
-    const chart = d3.select(prometheusGraphContainer)
-      .attr('width', this.width + this.margin.left + this.margin.right)
-      .attr('height', this.height + this.margin.bottom + this.margin.top)
-      .append('g')
-      .attr('class', 'graph-container')
-        .attr('transform', `translate(${this.margin.left},${this.margin.top})`);
-
-    const axisLabelContainer = d3.select(prometheusGraphContainer)
-      .attr('width', this.originalWidth)
-      .attr('height', this.originalHeight)
-      .append('g')
-        .attr('transform', `translate(${this.marginLabelContainer.left},${this.marginLabelContainer.top})`);
-
-    x.domain(d3.extent(graphSpecifics.data, d => d.time));
-    y.domain([0, d3.max(graphSpecifics.data.map(metricValue => metricValue.value))]);
-
-    const xAxis = d3.svg.axis()
-      .scale(x)
-      .ticks(this.commonGraphProperties.axis_no_ticks)
-      .orient('bottom');
-
-    const yAxis = d3.svg.axis()
-      .scale(y)
-      .ticks(this.commonGraphProperties.axis_no_ticks)
-      .tickSize(-this.width)
-      .outerTickSize(0)
-      .orient('left');
-
-    this.createAxisLabelContainers(axisLabelContainer, key);
-
-    chart.append('g')
-      .attr('class', 'x-axis')
-      .attr('transform', `translate(0,${this.height})`)
-      .call(xAxis);
-
-    chart.append('g')
-      .attr('class', 'y-axis')
-      .call(yAxis);
-
-    const area = d3.svg.area()
-      .x(d => x(d.time))
-      .y0(this.height)
-      .y1(d => y(d.value))
-      .interpolate('linear');
-
-    const line = d3.svg.line()
-    .x(d => x(d.time))
-    .y(d => y(d.value));
-
-    chart.append('path')
-      .datum(graphSpecifics.data)
-      .attr('d', area)
-      .attr('class', 'metric-area')
-      .attr('fill', graphSpecifics.area_fill_color);
-
-    chart.append('path')
-      .datum(graphSpecifics.data)
-      .attr('class', 'metric-line')
-      .attr('stroke', graphSpecifics.line_color)
-      .attr('fill', 'none')
-      .attr('stroke-width', this.commonGraphProperties.area_stroke_width)
-      .attr('d', line);
-
-    // Overlay area for the mouseover events
-    chart.append('rect')
-      .attr('class', 'prometheus-graph-overlay')
-      .attr('width', this.width)
-      .attr('height', this.height)
-      .on('mousemove', this.handleMouseOverGraph.bind(this, prometheusGraphContainer));
-  }
-
-  // The legends from the metric
-  createAxisLabelContainers(axisLabelContainer, key) {
-    const graphSpecifics = this.graphSpecificProperties[key];
-
-    axisLabelContainer.append('line')
-      .attr('class', 'label-x-axis-line')
-      .attr('stroke', '#000000')
-      .attr('stroke-width', '1')
-      .attr({
-        x1: 10,
-        y1: this.originalHeight - this.margin.top,
-        x2: (this.originalWidth - this.margin.right) + 10,
-        y2: this.originalHeight - this.margin.top,
-      });
-
-    axisLabelContainer.append('line')
-      .attr('class', 'label-y-axis-line')
-      .attr('stroke', '#000000')
-      .attr('stroke-width', '1')
-      .attr({
-        x1: 10,
-        y1: 0,
-        x2: 10,
-        y2: this.originalHeight - this.margin.top,
-      });
-
-    axisLabelContainer.append('rect')
-      .attr('class', 'rect-axis-text')
-      .attr('x', 0)
-      .attr('y', 50)
-      .attr('width', 30)
-      .attr('height', 150);
-
-    axisLabelContainer.append('text')
-      .attr('class', 'label-axis-text')
-      .attr('text-anchor', 'middle')
-      .attr('transform', `translate(15, ${(this.originalHeight - this.margin.top) / 2}) rotate(-90)`)
-      .text(graphSpecifics.graph_legend_title);
-
-    axisLabelContainer.append('rect')
-      .attr('class', 'rect-axis-text')
-      .attr('x', (this.originalWidth / 2) - this.margin.right)
-      .attr('y', this.originalHeight - 100)
-      .attr('width', 30)
-      .attr('height', 80);
-
-    axisLabelContainer.append('text')
-      .attr('class', 'label-axis-text')
-      .attr('x', (this.originalWidth / 2) - this.margin.right)
-      .attr('y', this.originalHeight - this.margin.top)
-      .attr('dy', '.35em')
-      .text('Time');
-
-    // Legends
-
-    // Metric Usage
-    axisLabelContainer.append('rect')
-      .attr('x', this.originalWidth - 170)
-      .attr('y', (this.originalHeight / 2) - 60)
-      .style('fill', graphSpecifics.area_fill_color)
-      .attr('width', 20)
-      .attr('height', 35);
-
-    axisLabelContainer.append('text')
-      .attr('class', 'text-metric-title')
-      .attr('x', this.originalWidth - 140)
-      .attr('y', (this.originalHeight / 2) - 50)
-      .text('Average');
-
-    axisLabelContainer.append('text')
-      .attr('class', 'text-metric-usage')
-      .attr('x', this.originalWidth - 140)
-      .attr('y', (this.originalHeight / 2) - 25);
-  }
-
-  handleMouseOverGraph(prometheusGraphContainer) {
-    const rectOverlay = document.querySelector(`${prometheusGraphContainer} .prometheus-graph-overlay`);
-    const currentXCoordinate = d3.mouse(rectOverlay)[0];
-
-    Object.keys(this.graphSpecificProperties).forEach((key) => {
-      const currentGraphProps = this.graphSpecificProperties[key];
-      const timeValueOverlay = currentGraphProps.xScale.invert(currentXCoordinate);
-      const overlayIndex = bisectDate(currentGraphProps.data, timeValueOverlay, 1);
-      const d0 = currentGraphProps.data[overlayIndex - 1];
-      const d1 = currentGraphProps.data[overlayIndex];
-      const evalTime = timeValueOverlay - d0.time > d1.time - timeValueOverlay;
-      const currentData = evalTime ? d1 : d0;
-      const currentTimeCoordinate = Math.floor(currentGraphProps.xScale(currentData.time));
-      const currentDeployXPos = this.deployments.mouseOverDeployInfo(currentXCoordinate, key);
-      const currentPrometheusGraphContainer = `${prometheusGraphsContainer}[graph-type=${key}]`;
-      const maxValueFromData = d3.max(currentGraphProps.data.map(metricValue => metricValue.value));
-      const maxMetricValue = currentGraphProps.yScale(maxValueFromData);
-
-      // Clear up all the pieces of the flag
-      d3.selectAll(`${currentPrometheusGraphContainer} .selected-metric-line`).remove();
-      d3.selectAll(`${currentPrometheusGraphContainer} .circle-metric`).remove();
-      d3.selectAll(`${currentPrometheusGraphContainer} .rect-text-metric:not(.deploy-info-rect)`).remove();
-
-      const currentChart = d3.select(currentPrometheusGraphContainer).select('g');
-      currentChart.append('line')
-      .attr({
-        class: `${currentDeployXPos ? 'hidden' : ''} selected-metric-line`,
-        x1: currentTimeCoordinate,
-        y1: currentGraphProps.yScale(0),
-        x2: currentTimeCoordinate,
-        y2: maxMetricValue,
-      });
-
-      currentChart.append('circle')
-        .attr('class', 'circle-metric')
-        .attr('fill', currentGraphProps.line_color)
-        .attr('cx', currentDeployXPos || currentTimeCoordinate)
-        .attr('cy', currentGraphProps.yScale(currentData.value))
-        .attr('r', this.commonGraphProperties.circle_radius_metric);
-
-      if (currentDeployXPos) return;
-
-      // The little box with text
-      const rectTextMetric = currentChart.append('svg')
-        .attr({
-          class: 'rect-text-metric',
-          x: currentTimeCoordinate,
-          y: 0,
-        });
-
-      rectTextMetric.append('rect')
-        .attr({
-          class: 'rect-metric',
-          x: 4,
-          y: 1,
-          rx: 2,
-          width: this.commonGraphProperties.rect_text_width,
-          height: this.commonGraphProperties.rect_text_height,
-        });
-
-      rectTextMetric.append('text')
-        .attr({
-          class: 'text-metric text-metric-bold',
-          x: 8,
-          y: 35,
-        })
-        .text(timeFormat(currentData.time));
-
-      rectTextMetric.append('text')
-        .attr({
-          class: 'text-metric-date',
-          x: 8,
-          y: 15,
-        })
-        .text(dateFormat(currentData.time));
-
-      let currentMetricValue = formatRelevantDigits(currentData.value);
-      if (key === 'cpu_values') {
-        currentMetricValue = `${currentMetricValue}%`;
-      } else {
-        currentMetricValue = `${currentMetricValue} MB`;
-      }
-
-      d3.select(`${currentPrometheusGraphContainer} .text-metric-usage`)
-        .text(currentMetricValue);
-    });
-  }
-
-  configureGraph() {
-    this.graphSpecificProperties = {
-      cpu_values: {
-        area_fill_color: '#edf3fc',
-        line_color: '#5b99f7',
-        graph_legend_title: 'CPU Usage (Cores)',
-        data: [],
-        xScale: {},
-        yScale: {},
-      },
-      memory_values: {
-        area_fill_color: '#fca326',
-        line_color: '#fc6d26',
-        graph_legend_title: 'Memory Usage (MB)',
-        data: [],
-        xScale: {},
-        yScale: {},
-      },
-    };
-
-    this.commonGraphProperties = {
-      area_stroke_width: 2,
-      median_total_characters: 8,
-      circle_radius_metric: 5,
-      rect_text_width: 90,
-      rect_text_height: 40,
-      axis_no_ticks: 3,
-    };
-  }
-
-  getData() {
-    const maxNumberOfRequests = 3;
-    this.state = '.js-loading';
-    this.updateState();
-    return gl.utils.backOff((next, stop) => {
-      $.ajax({
-        url: metricsEndpoint,
-        dataType: 'json',
-      })
-      .done((data, statusText, resp) => {
-        if (resp.status === statusCodes.NO_CONTENT) {
-          this.backOffRequestCounter = this.backOffRequestCounter += 1;
-          if (this.backOffRequestCounter < maxNumberOfRequests) {
-            next();
-          } else if (this.backOffRequestCounter >= maxNumberOfRequests) {
-            stop(new Error('loading'));
-          }
-        } else if (!data.success) {
-          stop(new Error('loading'));
-        } else {
-          stop({
-            status: resp.status,
-            metrics: data,
-          });
-        }
-      }).fail(stop);
-    })
-    .then((resp) => {
-      if (resp.status === statusCodes.NO_CONTENT) {
-        return {};
-      }
-      return resp.metrics;
-    })
-    .catch(() => {
-      const prevState = this.state;
-      this.state = '.js-unable-to-connect';
-      this.updateState(prevState);
-    });
-  }
-
-  transformData(metricsResponse) {
-    Object.keys(metricsResponse.metrics).forEach((key) => {
-      if (key === 'cpu_values' || key === 'memory_values') {
-        const metricValues = (metricsResponse.metrics[key])[0];
-        this.graphSpecificProperties[key].data = metricValues.values.map(metric => ({
-          time: new Date(metric[0] * 1000),
-          value: metric[1],
-        }));
-      }
-    });
-  }
-
-  updateState(prevState) {
-    const $statesContainer = $(prometheusStatesContainer);
-    $(prometheusParentGraphContainer).hide();
-    if (prevState) {
-      $(`${prevState}`, $statesContainer).addClass('hidden');
-    }
-    $(`${this.state}`, $statesContainer).removeClass('hidden');
-    $(prometheusStatesContainer).show();
-  }
-}
-
-export default PrometheusGraph;

app/assets/javascripts/monitoring/services/monitoring_service.js

+import Vue from 'vue';
+import VueResource from 'vue-resource';
+
+Vue.use(VueResource);
+
+export default class MonitoringService {
+  constructor(endpoint) {
+    this.graphs = Vue.resource(endpoint);
+  }
+
+  get() {
+    return this.graphs.get();
+  }
+
+  // eslint-disable-next-line class-methods-use-this
+  getDeploymentData(endpoint) {
+    return Vue.http.get(endpoint);
+  }
+}

app/assets/javascripts/monitoring/stores/monitoring_store.js

+import _ from 'underscore';
+
+class MonitoringStore {
+  constructor() {
+    this.groups = [];
+    this.deploymentData = [];
+  }
+
+  // eslint-disable-next-line class-methods-use-this
+  createArrayRows(metrics = []) {
+    const currentMetrics = metrics;
+    const availableMetrics = [];
+    let metricsRow = [];
+    let index = 1;
+    Object.keys(currentMetrics).forEach((key) => {
+      const metricValues = currentMetrics[key].queries[0].result[0].values;
+      if (metricValues != null) {
+        const literalMetrics = metricValues.map(metric => ({
+          time: new Date(metric[0] * 1000),
+          value: metric[1],
+        }));
+        currentMetrics[key].queries[0].result[0].values = literalMetrics;
+        metricsRow.push(currentMetrics[key]);
+        if (index % 2 === 0) {
+          availableMetrics.push(metricsRow);
+          metricsRow = [];
+        }
+        index = index += 1;
+      }
+    });
+    if (metricsRow.length > 0) {
+      availableMetrics.push(metricsRow);
+    }
+    return availableMetrics;
+  }
+
+  storeMetrics(groups = []) {
+    this.groups = groups.map((group) => {
+      const currentGroup = group;
+      currentGroup.metrics = _.chain(group.metrics).sortBy('weight').sortBy('title').value();
+      currentGroup.metrics = this.createArrayRows(currentGroup.metrics);
+      return currentGroup;
+    });
+  }
+
+  storeDeploymentData(deploymentData = []) {
+    this.deploymentData = deploymentData;
+  }
+
+  getMetricsCount() {
+    let metricsCount = 0;
+    this.groups.forEach((group) => {
+      group.metrics.forEach((metric) => {
+        metricsCount = metricsCount += metric.length;
+      });
+    });
+    return metricsCount;
+  }
+}
+
+export default MonitoringStore;

app/assets/javascripts/monitoring/utils/measurements.js

+export default {
+  small: { // Covers both xs and sm screen sizes
+    margin: {
+      top: 40,
+      right: 40,
+      bottom: 50,
+      left: 40,
+    },
+    legends: {
+      width: 15,
+      height: 30,
+    },
+    backgroundLegend: {
+      width: 30,
+      height: 50,
+    },
+    axisLabelLineOffset: -20,
+    legendOffset: 52,
+  },
+  large: { // This covers both md and lg screen sizes
+    margin: {
+      top: 80,
+      right: 80,
+      bottom: 100,
+      left: 80,
+    },
+    legends: {
+      width: 20,
+      height: 35,
+    },
+    backgroundLegend: {
+      width: 30,
+      height: 150,
+    },
+    axisLabelLineOffset: 20,
+    legendOffset: 55,
+  },
+  ticks: 3,
+};

app/assets/stylesheets/pages/environments.scss

@@ -140,23 +140,6 @@
   }
 }
 
-.prometheus-graph {
-  text {
-    fill: $gl-text-color;
-    stroke-width: 0;
-  }
-
-  .label-axis-text,
-  .text-metric-usage {
-    fill: $black;
-    font-weight: 500;
-  }
-
-  .legend-axis-text {
-    fill: $black;
-  }
-}
-
 .x-axis path,
 .y-axis path,
 .label-x-axis-line,
@@ -205,6 +188,7 @@
 
 .text-metric {
   font-weight: 600;
+  font-size: 14px;
 }
 
 .selected-metric-line {
@@ -214,20 +198,15 @@
 
 .deployment-line {
   stroke: $black;
-  stroke-width: 2;
+  stroke-width: 1;
 }
 
 .deploy-info-text {
   dominant-baseline: text-before-edge;
 }
 
-.text-metric-bold {
-  font-weight: 600;
-}
-
 .prometheus-state {
   margin-top: 10px;
-  display: none;
 
   .state-button-section {
     margin-top: 10px;
@@ -242,3 +221,59 @@
     width: 38px;
   }
 }
+
+.prometheus-panel {
+  margin-top: 20px;
+}
+
+.prometheus-svg-container {
+  position: relative;
+  height: 0;
+  width: 100%;
+  padding: 0;
+  padding-bottom: 100%;
+
+  .text-metric-bold {
+    font-weight: 600;
+  }
+}
+
+.prometheus-svg-container > svg {
+  position: absolute;
+  height: 100%;
+  width: 100%;
+  left: 0;
+  top: 0;
+
+  text {
+    fill: $gl-text-color;
+    stroke-width: 0;
+  }
+
+  .label-axis-text,
+  .text-metric-usage {
+    fill: $black;
+    font-weight: 500;
+    font-size: 14px;
+  }
+
+  .legend-axis-text {
+    fill: $black;
+  }
+
+  .tick > text {
+    font-size: 14px;
+  }
+
+  @media (max-width: $screen-sm-max) {
+    .label-axis-text,
+    .text-metric-usage,
+    .legend-axis-text {
+      font-size: 8px;
+    }
+
+    .tick > text {
+      font-size: 8px;
+    }
+  }
+}

app/views/projects/environments/metrics.html.haml

 - @no_container = true
 - page_title "Metrics for environment", @environment.name
 - content_for :page_specific_javascripts do
-  = page_specific_javascript_bundle_tag('common_d3')
-  = page_specific_javascript_bundle_tag('monitoring')
+  = webpack_bundle_tag 'common_vue'
+  = webpack_bundle_tag 'common_d3'
+  = webpack_bundle_tag 'monitoring'
 = render "projects/pipelines/head"
 
-#js-metrics.prometheus-container{ class: container_class, data: { has_metrics: "#{@environment.has_metrics?}", deployment_endpoint: namespace_project_environment_deployments_path(@project.namespace, @project, @environment, format: :json) } }
+.prometheus-container{ class: container_class }
   .top-area
     .row
       .col-sm-6
@@ -13,68 +14,8 @@
           Environment:
           = link_to @environment.name, environment_path(@environment)
 
-  .prometheus-state
-    .js-getting-started.hidden
-      .row
-        .col-md-4.col-md-offset-4.state-svg
-          = render "shared/empty_states/monitoring/getting_started.svg"
-      .row
-        .col-md-6.col-md-offset-3
-          %h4.text-center.state-title
-            Get started with performance monitoring
-      .row
-        .col-md-6.col-md-offset-3
-          .description-text.text-center.state-description
-            Stay updated about the performance and health of your environment by configuring Prometheus to monitor your deployments.
-            = link_to help_page_path('administration/monitoring/prometheus/index.md') do
-              Learn more about performance monitoring
-      .row.state-button-section
-        .col-md-4.col-md-offset-4.text-center.state-button
-          = link_to edit_namespace_project_service_path(@project.namespace, @project, 'prometheus'), class: 'btn btn-success' do
-            Configure Prometheus
-    .js-loading.hidden
-      .row
-        .col-md-4.col-md-offset-4.state-svg
-          = render "shared/empty_states/monitoring/loading.svg"
-      .row
-        .col-md-6.col-md-offset-3
-          %h4.text-center.state-title
-            Waiting for performance data
-      .row
-        .col-md-6.col-md-offset-3
-          .description-text.text-center.state-description
-            Creating graphs uses the data from the Prometheus server. If this takes a long time, ensure that data is available.
-      .row.state-button-section
-        .col-md-4.col-md-offset-4.text-center.state-button
-          = link_to help_page_path('administration/monitoring/prometheus/index.md'), class: 'btn btn-success' do
-            View documentation
-    .js-unable-to-connect.hidden
-      .row
-        .col-md-4.col-md-offset-4.state-svg
-          = render "shared/empty_states/monitoring/unable_to_connect.svg"
-      .row
-        .col-md-6.col-md-offset-3
-          %h4.text-center.state-title
-            Unable to connect to Prometheus server
-      .row
-        .col-md-6.col-md-offset-3
-          .description-text.text-center.state-description
-            Ensure connectivity is available from the GitLab server to the
-            = link_to edit_namespace_project_service_path(@project.namespace, @project, 'prometheus') do
-              Prometheus server
-      .row.state-button-section
-        .col-md-4.col-md-offset-4.text-center.state-button
-          = link_to help_page_path('administration/monitoring/prometheus/index.md'), class:'btn btn-success' do
-            View documentation
+  #prometheus-graphs{ data: { "settings-path": edit_namespace_project_service_path(@project.namespace, @project, 'prometheus'),
+    "documentation-path": help_page_path('administration/monitoring/prometheus/index.md'),
+    "additional-metrics": additional_metrics_namespace_project_environment_path(@project.namespace, @project, @environment, format: :json),
+    "has-metrics": "#{@environment.has_metrics?}", deployment_endpoint: namespace_project_environment_deployments_path(@project.namespace, @project, @environment, format: :json) } }
 
-  .prometheus-graphs
-    .row
-      .col-sm-12
-        %h4
-          CPU utilization
-        %svg.prometheus-graph{ 'graph-type' => 'cpu_values' }
-    .row
-      .col-sm-12
-        %h4
-          Memory usage
-        %svg.prometheus-graph{ 'graph-type' => 'memory_values' }

config/webpack.config.js

@@ -163,6 +163,7 @@ var config = {
         'issue_show',
         'job_details',
         'merge_conflicts',
+        'monitoring',
         'notebook_viewer',
         'pdf_viewer',
         'pipelines',

spec/features/projects/environments/environment_metrics_spec.rb

@@ -27,7 +27,7 @@ feature 'Environment > Metrics', :feature do
     scenario 'shows metrics' do
       click_link('See metrics')
 
-      expect(page).to have_css('svg.prometheus-graph')
+      expect(page).to have_css('div#prometheus-graphs')
     end
   end
 

spec/javascripts/monitoring/deployments_spec.js

-import d3 from 'd3';
-import PrometheusGraph from '~/monitoring/prometheus_graph';
-import Deployments from '~/monitoring/deployments';
-import { prometheusMockData } from './prometheus_mock_data';
-
-describe('Metrics deployments', () => {
-  const fixtureName = 'environments/metrics/metrics.html.raw';
-  let deployment;
-  let prometheusGraph;
-
-  const graphElement = () => document.querySelector('.prometheus-graph');
-
-  preloadFixtures(fixtureName);
-
-  beforeEach((done) => {
-    // Setup the view
-    loadFixtures(fixtureName);
-
-    d3.selectAll('.prometheus-graph')
-      .append('g')
-      .attr('class', 'graph-container');
-
-    prometheusGraph = new PrometheusGraph();
-    deployment = new Deployments(1000, 500);
-
-    spyOn(prometheusGraph, 'init');
-    spyOn($, 'ajax').and.callFake(() => {
-      const d = $.Deferred();
-      d.resolve({
-        deployments: [{
-          id: 1,
-          created_at: deployment.chartData[10].time,
-          sha: 'testing',
-          tag: false,
-          ref: {
-            name: 'testing',
-          },
-        }, {
-          id: 2,
-          created_at: deployment.chartData[15].time,
-          sha: '',
-          tag: true,
-          ref: {
-            name: 'tag',
-          },
-        }],
-      });
-
-      setTimeout(done);
-
-      return d.promise();
-    });
-
-    prometheusGraph.configureGraph();
-    prometheusGraph.transformData(prometheusMockData.metrics);
-
-    deployment.init(prometheusGraph.graphSpecificProperties.memory_values.data);
-  });
-
-  it('creates line on graph for deploment', () => {
-    expect(
-      graphElement().querySelectorAll('.deployment-line').length,
-    ).toBe(2);
-  });
-
-  it('creates hidden deploy boxes', () => {
-    expect(
-      graphElement().querySelectorAll('.prometheus-graph .js-deploy-info-box').length,
-    ).toBe(2);
-  });
-
-  it('hides the info boxes by default', () => {
-    expect(
-      graphElement().querySelectorAll('.prometheus-graph .js-deploy-info-box.hidden').length,
-    ).toBe(2);
-  });
-
-  it('shows sha short code when tag is false', () => {
-    expect(
-      graphElement().querySelector('.deploy-info-1-cpu_values .js-deploy-info-box').textContent.trim(),
-    ).toContain('testin');
-  });
-
-  it('shows ref name when tag is true', () => {
-    expect(
-      graphElement().querySelector('.deploy-info-2-cpu_values .js-deploy-info-box').textContent.trim(),
-    ).toContain('tag');
-  });
-
-  it('shows info box when moving mouse over line', () => {
-    deployment.mouseOverDeployInfo(deployment.data[0].xPos, 'cpu_values');
-
-    expect(
-      graphElement().querySelectorAll('.prometheus-graph .js-deploy-info-box.hidden').length,
-    ).toBe(1);
-
-    expect(
-      graphElement().querySelector('.deploy-info-1-cpu_values .js-deploy-info-box.hidden'),
-    ).toBeNull();
-  });
-
-  it('hides previously visible info box when moving mouse away', () => {
-    deployment.mouseOverDeployInfo(500, 'cpu_values');
-
-    expect(
-      graphElement().querySelectorAll('.prometheus-graph .js-deploy-info-box.hidden').length,
-    ).toBe(2);
-
-    expect(
-      graphElement().querySelector('.deploy-info-1-cpu_values .js-deploy-info-box.hidden'),
-    ).not.toBeNull();
-  });
-
-  describe('refText', () => {
-    it('returns shortened SHA', () => {
-      expect(
-        Deployments.refText({
-          tag: false,
-          sha: '123456789',
-        }),
-      ).toBe('123456');
-    });
-
-    it('returns tag name', () => {
-      expect(
-        Deployments.refText({
-          tag: true,
-          ref: 'v1.0',
-        }),
-      ).toBe('v1.0');
-    });
-  });
-});

spec/javascripts/monitoring/monitoring_column_spec.js

+import Vue from 'vue';
+import _ from 'underscore';
+import MonitoringColumn from '~/monitoring/components/monitoring_column.vue';
+import MonitoringMixins from '~/monitoring/mixins/monitoring_mixins';
+import eventHub from '~/monitoring/event_hub';
+import { deploymentData, singleRowMetrics } from './mock_data';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringColumn);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+describe('MonitoringColumn', () => {
+  beforeEach(() => {
+    spyOn(MonitoringMixins.methods, 'formatDeployments').and.callFake(function fakeFormat() {
+      return {};
+    });
+  });
+
+  it('has a title', () => {
+    const component = createComponent({
+      columnData: singleRowMetrics[0],
+      classType: 'col-md-6',
+      updateAspectRatio: false,
+      deploymentData,
+    });
+
+    expect(component.$el.querySelector('.text-center').innerText.trim()).toBe(component.columnData.title);
+  });
+
+  it('creates a path for the line and area of the graph', (done) => {
+    const component = createComponent({
+      columnData: singleRowMetrics[0],
+      classType: 'col-md-6',
+      updateAspectRatio: false,
+      deploymentData,
+    });
+
+    Vue.nextTick(() => {
+      expect(component.area).toBeDefined();
+      expect(component.line).toBeDefined();
+      expect(typeof component.area).toEqual('string');
+      expect(typeof component.line).toEqual('string');
+      expect(_.isFunction(component.xScale)).toBe(true);
+      expect(_.isFunction(component.yScale)).toBe(true);
+      done();
+    });
+  });
+
+  describe('Computed props', () => {
+    it('axisTransform translates an element Y position depending of its height', () => {
+      const component = createComponent({
+        columnData: singleRowMetrics[0],
+        classType: 'col-md-6',
+        updateAspectRatio: false,
+        deploymentData,
+      });
+
+      const transformedHeight = `${component.graphHeight - 100}`;
+      expect(component.axisTransform.indexOf(transformedHeight))
+        .not.toEqual(-1);
+    });
+
+    it('outterViewBox gets a width and height property based on the DOM size of the element', () => {
+      const component = createComponent({
+        columnData: singleRowMetrics[0],
+        classType: 'col-md-6',
+        updateAspectRatio: false,
+        deploymentData,
+      });
+
+      const viewBoxArray = component.outterViewBox.split(' ');
+      expect(typeof component.outterViewBox).toEqual('string');
+      expect(viewBoxArray[2]).toEqual(component.graphWidth.toString());
+      expect(viewBoxArray[3]).toEqual(component.graphHeight.toString());
+    });
+  });
+
+  it('sends an event to the eventhub when it has finished resizing', (done) => {
+    const component = createComponent({
+      columnData: singleRowMetrics[0],
+      classType: 'col-md-6',
+      updateAspectRatio: false,
+      deploymentData,
+    });
+    spyOn(eventHub, '$emit');
+
+    component.updateAspectRatio = true;
+    Vue.nextTick(() => {
+      expect(eventHub.$emit).toHaveBeenCalled();
+      done();
+    });
+  });
+});

spec/javascripts/monitoring/monitoring_deployment_spec.js

+import Vue from 'vue';
+import MonitoringState from '~/monitoring/components/monitoring_deployment.vue';
+import { deploymentData } from './mock_data';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringState);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+describe('MonitoringDeployment', () => {
+  const reducedDeploymentData = [deploymentData[0]];
+  reducedDeploymentData[0].ref = reducedDeploymentData[0].ref.name;
+  reducedDeploymentData[0].xPos = 10;
+  reducedDeploymentData[0].time = new Date(reducedDeploymentData[0].created_at);
+  describe('Methods', () => {
+    it('refText shows the ref when a tag is available', () => {
+      reducedDeploymentData[0].tag = '1.0';
+      const component = createComponent({
+        showDeployInfo: false,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.refText(reducedDeploymentData[0]),
+      ).toEqual(reducedDeploymentData[0].ref);
+    });
+
+    it('refText shows the sha when no tag is available', () => {
+      reducedDeploymentData[0].tag = null;
+      const component = createComponent({
+        showDeployInfo: false,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.refText(reducedDeploymentData[0]),
+      ).toContain('f5bcd1');
+    });
+
+    it('nameDeploymentClass creates a class with the prefix deploy-info-', () => {
+      const component = createComponent({
+        showDeployInfo: false,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.nameDeploymentClass(reducedDeploymentData[0]),
+      ).toContain('deploy-info');
+    });
+
+    it('transformDeploymentGroup translates an available deployment', () => {
+      const component = createComponent({
+        showDeployInfo: false,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.transformDeploymentGroup(reducedDeploymentData[0]),
+      ).toContain('translate(11, 20)');
+    });
+
+    it('hides the deployment flag', () => {
+      reducedDeploymentData[0].showDeploymentFlag = false;
+      const component = createComponent({
+        showDeployInfo: true,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(component.$el.querySelector('.js-deploy-info-box')).toBeNull();
+    });
+
+    it('shows the deployment flag', () => {
+      reducedDeploymentData[0].showDeploymentFlag = true;
+      const component = createComponent({
+        showDeployInfo: true,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.$el.querySelector('.js-deploy-info-box').style.display,
+      ).not.toEqual('display: none;');
+    });
+
+    it('shows the refText inside a text element with the deploy-info-text class', () => {
+      reducedDeploymentData[0].showDeploymentFlag = true;
+      const component = createComponent({
+        showDeployInfo: true,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(
+        component.$el.querySelector('.deploy-info-text').firstChild.nodeValue.trim(),
+      ).toEqual(component.refText(reducedDeploymentData[0]));
+    });
+
+    it('should contain a hidden gradient', () => {
+      const component = createComponent({
+        showDeployInfo: true,
+        deploymentData: reducedDeploymentData,
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(component.$el.querySelector('#shadow-gradient')).not.toBeNull();
+    });
+
+    describe('Computed props', () => {
+      it('calculatedHeight', () => {
+        const component = createComponent({
+          showDeployInfo: true,
+          deploymentData: reducedDeploymentData,
+          graphHeight: 300,
+          graphHeightOffset: 120,
+        });
+
+        expect(component.calculatedHeight).toEqual(180);
+      });
+    });
+  });
+});

spec/javascripts/monitoring/monitoring_flag_spec.js

+import Vue from 'vue';
+import MonitoringFlag from '~/monitoring/components/monitoring_flag.vue';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringFlag);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+function getCoordinate(component, selector, coordinate) {
+  const coordinateVal = component.$el.querySelector(selector).getAttribute(coordinate);
+  return parseInt(coordinateVal, 10);
+}
+
+describe('MonitoringFlag', () => {
+  it('has a line and a circle located at the currentXCoordinate and currentYCoordinate', () => {
+    const component = createComponent({
+      currentXCoordinate: 200,
+      currentYCoordinate: 100,
+      currentFlagPosition: 100,
+      currentData: {
+        time: new Date('2017-06-04T18:17:33.501Z'),
+        value: '1.49609375',
+      },
+      graphHeight: 300,
+      graphHeightOffset: 120,
+    });
+
+    expect(getCoordinate(component, '.selected-metric-line', 'x1'))
+      .toEqual(component.currentXCoordinate);
+    expect(getCoordinate(component, '.selected-metric-line', 'x2'))
+      .toEqual(component.currentXCoordinate);
+    expect(getCoordinate(component, '.circle-metric', 'cx'))
+      .toEqual(component.currentXCoordinate);
+    expect(getCoordinate(component, '.circle-metric', 'cy'))
+      .toEqual(component.currentYCoordinate);
+  });
+
+  it('has a SVG with the class rect-text-metric at the currentFlagPosition', () => {
+    const component = createComponent({
+      currentXCoordinate: 200,
+      currentYCoordinate: 100,
+      currentFlagPosition: 100,
+      currentData: {
+        time: new Date('2017-06-04T18:17:33.501Z'),
+        value: '1.49609375',
+      },
+      graphHeight: 300,
+      graphHeightOffset: 120,
+    });
+
+    const svg = component.$el.querySelector('.rect-text-metric');
+    expect(svg.tagName).toEqual('svg');
+    expect(parseInt(svg.getAttribute('x'), 10)).toEqual(component.currentFlagPosition);
+  });
+
+  describe('Computed props', () => {
+    it('calculatedHeight', () => {
+      const component = createComponent({
+        currentXCoordinate: 200,
+        currentYCoordinate: 100,
+        currentFlagPosition: 100,
+        currentData: {
+          time: new Date('2017-06-04T18:17:33.501Z'),
+          value: '1.49609375',
+        },
+        graphHeight: 300,
+        graphHeightOffset: 120,
+      });
+
+      expect(component.calculatedHeight).toEqual(180);
+    });
+  });
+});

spec/javascripts/monitoring/monitoring_legends_spec.js

+import Vue from 'vue';
+import MonitoringLegends from '~/monitoring/components/monitoring_legends.vue';
+import measurements from '~/monitoring/utils/measurements';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringLegends);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+function getTextFromNode(component, selector) {
+  return component.$el.querySelector(selector).firstChild.nodeValue.trim();
+}
+
+describe('MonitoringLegends', () => {
+  describe('Computed props', () => {
+    it('textTransform', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.textTransform).toContain('translate(15, 120) rotate(-90)');
+    });
+
+    it('xPosition', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.xPosition).toEqual(180);
+    });
+
+    it('yPosition', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.yPosition).toEqual(240);
+    });
+
+    it('rectTransform', () => {
+      const component = createComponent({
+        graphWidth: 500,
+        graphHeight: 300,
+        margin: measurements.large.margin,
+        measurements: measurements.large,
+        areaColorRgb: '#f0f0f0',
+        legendTitle: 'Title',
+        yAxisLabel: 'Values',
+        metricUsage: 'Value',
+      });
+
+      expect(component.rectTransform).toContain('translate(0, 120) rotate(-90)');
+    });
+  });
+
+  it('has 2 rect-axis-text rect svg elements', () => {
+    const component = createComponent({
+      graphWidth: 500,
+      graphHeight: 300,
+      margin: measurements.large.margin,
+      measurements: measurements.large,
+      areaColorRgb: '#f0f0f0',
+      legendTitle: 'Title',
+      yAxisLabel: 'Values',
+      metricUsage: 'Value',
+    });
+
+    expect(component.$el.querySelectorAll('.rect-axis-text').length).toEqual(2);
+  });
+
+  it('contains text to signal the usage, title and time', () => {
+    const component = createComponent({
+      graphWidth: 500,
+      graphHeight: 300,
+      margin: measurements.large.margin,
+      measurements: measurements.large,
+      areaColorRgb: '#f0f0f0',
+      legendTitle: 'Title',
+      yAxisLabel: 'Values',
+      metricUsage: 'Value',
+    });
+
+    expect(getTextFromNode(component, '.text-metric-title')).toEqual(component.legendTitle);
+    expect(getTextFromNode(component, '.text-metric-usage')).toEqual(component.metricUsage);
+    expect(getTextFromNode(component, '.label-axis-text')).toEqual(component.yAxisLabel);
+  });
+});

spec/javascripts/monitoring/monitoring_row_spec.js

+import Vue from 'vue';
+import MonitoringRow from '~/monitoring/components/monitoring_row.vue';
+import { deploymentData, singleRowMetrics } from './mock_data';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringRow);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+describe('MonitoringRow', () => {
+  describe('Computed props', () => {
+    it('bootstrapClass is set to col-md-6 when rowData is higher/equal to 2', () => {
+      const component = createComponent({
+        rowData: singleRowMetrics,
+        updateAspectRatio: false,
+        deploymentData,
+      });
+
+      expect(component.bootstrapClass).toEqual('col-md-6');
+    });
+
+    it('bootstrapClass is set to col-md-12 when rowData is lower than 2', () => {
+      const component = createComponent({
+        rowData: [singleRowMetrics[0]],
+        updateAspectRatio: false,
+        deploymentData,
+      });
+
+      expect(component.bootstrapClass).toEqual('col-md-12');
+    });
+  });
+
+  it('has one column', () => {
+    const component = createComponent({
+      rowData: singleRowMetrics,
+      updateAspectRatio: false,
+      deploymentData,
+    });
+
+    expect(component.$el.querySelectorAll('.prometheus-svg-container').length)
+        .toEqual(component.rowData.length);
+  });
+
+  it('has two columns', () => {
+    const component = createComponent({
+      rowData: singleRowMetrics,
+      updateAspectRatio: false,
+      deploymentData,
+    });
+
+    expect(component.$el.querySelectorAll('.col-md-6').length)
+        .toEqual(component.rowData.length);
+  });
+});

spec/javascripts/monitoring/monitoring_spec.js

+import Vue from 'vue';
+import Monitoring from '~/monitoring/components/monitoring.vue';
+import { MonitorMockInterceptor } from './mock_data';
+
+describe('Monitoring', () => {
+  const fixtureName = 'environments/metrics/metrics.html.raw';
+  let MonitoringComponent;
+  let component;
+  preloadFixtures(fixtureName);
+
+  beforeEach(() => {
+    loadFixtures(fixtureName);
+    MonitoringComponent = Vue.extend(Monitoring);
+  });
+
+  describe('no metrics are available yet', () => {
+    it('shows a getting started empty state when no metrics are present', () => {
+      component = new MonitoringComponent({
+        el: document.querySelector('#prometheus-graphs'),
+      });
+
+      component.$mount();
+      expect(component.$el.querySelector('#prometheus-graphs')).toBe(null);
+      expect(component.state).toEqual('gettingStarted');
+    });
+  });
+
+  describe('requests information to the server', () => {
+    beforeEach(() => {
+      document.querySelector('#prometheus-graphs').setAttribute('data-has-metrics', 'true');
+      Vue.http.interceptors.push(MonitorMockInterceptor);
+    });
+
+    afterEach(() => {
+      Vue.http.interceptors = _.without(Vue.http.interceptors, MonitorMockInterceptor);
+    });
+
+    it('shows up a loading state', (done) => {
+      component = new MonitoringComponent({
+        el: document.querySelector('#prometheus-graphs'),
+      });
+      component.$mount();
+      Vue.nextTick(() => {
+        expect(component.state).toEqual('loading');
+        done();
+      });
+    });
+  });
+});

spec/javascripts/monitoring/monitoring_state_spec.js

+import Vue from 'vue';
+import MonitoringState from '~/monitoring/components/monitoring_state.vue';
+import { statePaths } from './mock_data';
+
+const createComponent = (propsData) => {
+  const Component = Vue.extend(MonitoringState);
+
+  return new Component({
+    propsData,
+  }).$mount();
+};
+
+function getTextFromNode(component, selector) {
+  return component.$el.querySelector(selector).firstChild.nodeValue.trim();
+}
+
+describe('MonitoringState', () => {
+  describe('Computed props', () => {
+    it('currentState', () => {
+      const component = createComponent({
+        selectedState: 'gettingStarted',
+        settingsPath: statePaths.settingsPath,
+        documentationPath: statePaths.documentationPath,
+      });
+
+      expect(component.currentState).toBe(component.states.gettingStarted);
+    });
+
+    it('buttonPath returns settings path for the state "gettingStarted"', () => {
+      const component = createComponent({
+        selectedState: 'gettingStarted',
+        settingsPath: statePaths.settingsPath,
+        documentationPath: statePaths.documentationPath,
+      });
+
+      expect(component.buttonPath).toEqual(statePaths.settingsPath);
+      expect(component.buttonPath).not.toEqual(statePaths.documentationPath);
+    });
+
+    it('buttonPath returns documentation path for any of the other states', () => {
+      const component = createComponent({
+        selectedState: 'loading',
+        settingsPath: statePaths.settingsPath,
+        documentationPath: statePaths.documentationPath,
+      });
+
+      expect(component.buttonPath).toEqual(statePaths.documentationPath);
+      expect(component.buttonPath).not.toEqual(statePaths.settingsPath);
+    });
+
+    it('showButtonDescription returns a description with a link for the unableToConnect state', () => {
+      const component = createComponent({
+        selectedState: 'unableToConnect',
+        settingsPath: statePaths.settingsPath,
+        documentationPath: statePaths.documentationPath,
+      });
+
+      expect(component.showButtonDescription).toEqual(true);
+    });
+
+    it('showButtonDescription returns the description without a link for any other state', () => {
+      const component = createComponent({
+        selectedState: 'loading',
+        settingsPath: statePaths.settingsPath,
+        documentationPath: statePaths.documentationPath,
+      });
+
+      expect(component.showButtonDescription).toEqual(false);
+    });
+  });
+
+  it('should show the gettingStarted state', () => {
+    const component = createComponent({
+      selectedState: 'gettingStarted',
+      settingsPath: statePaths.settingsPath,
+      documentationPath: statePaths.documentationPath,
+    });
+
+    expect(component.$el.querySelector('svg')).toBeDefined();
+    expect(getTextFromNode(component, '.state-title')).toEqual(component.states.gettingStarted.title);
+    expect(getTextFromNode(component, '.state-description')).toEqual(component.states.gettingStarted.description);
+    expect(getTextFromNode(component, '.btn-success')).toEqual(component.states.gettingStarted.buttonText);
+  });
+
+  it('should show the loading state', () => {
+    const component = createComponent({
+      selectedState: 'loading',
+      settingsPath: statePaths.settingsPath,
+      documentationPath: statePaths.documentationPath,
+    });
+
+    expect(component.$el.querySelector('svg')).toBeDefined();
+    expect(getTextFromNode(component, '.state-title')).toEqual(component.states.loading.title);
+    expect(getTextFromNode(component, '.state-description')).toEqual(component.states.loading.description);
+    expect(getTextFromNode(component, '.btn-success')).toEqual(component.states.loading.buttonText);
+  });
+
+  it('should show the unableToConnect state', () => {
+    const component = createComponent({
+      selectedState: 'unableToConnect',
+      settingsPath: statePaths.settingsPath,
+      documentationPath: statePaths.documentationPath,
+    });
+
+    expect(component.$el.querySelector('svg')).toBeDefined();
+    expect(getTextFromNode(component, '.state-title')).toEqual(component.states.unableToConnect.title);
+    expect(component.$el.querySelector('.state-description a')).toBeDefined();
+    expect(getTextFromNode(component, '.btn-success')).toEqual(component.states.unableToConnect.buttonText);
+  });
+});

spec/javascripts/monitoring/monitoring_store_spec.js

+import MonitoringStore from '~/monitoring/stores/monitoring_store';
+import MonitoringMock, { deploymentData } from './mock_data';
+
+describe('MonitoringStore', () => {
+  this.store = new MonitoringStore();
+  this.store.storeMetrics(MonitoringMock.data);
+
+  it('contains one group that contains two queries sorted by priority in one row', () => {
+    expect(this.store.groups).toBeDefined();
+    expect(this.store.groups.length).toEqual(1);
+    expect(this.store.groups[0].metrics.length).toEqual(1);
+  });
+
+  it('gets the metrics count for every group', () => {
+    expect(this.store.getMetricsCount()).toEqual(2);
+  });
+
+  it('contains deployment data', () => {
+    this.store.storeDeploymentData(deploymentData);
+    expect(this.store.deploymentData).toBeDefined();
+    expect(this.store.deploymentData.length).toEqual(3);
+    expect(typeof this.store.deploymentData[0]).toEqual('object');
+  });
+});

spec/javascripts/monitoring/prometheus_graph_spec.js

-import 'jquery';
-import PrometheusGraph from '~/monitoring/prometheus_graph';
-import { prometheusMockData } from './prometheus_mock_data';
-
-describe('PrometheusGraph', () => {
-  const fixtureName = 'environments/metrics/metrics.html.raw';
-  const prometheusGraphContainer = '.prometheus-graph';
-  const prometheusGraphContents = `${prometheusGraphContainer}[graph-type=cpu_values]`;
-
-  preloadFixtures(fixtureName);
-
-  beforeEach(() => {
-    loadFixtures(fixtureName);
-    $('.prometheus-container').data('has-metrics', 'true');
-    this.prometheusGraph = new PrometheusGraph();
-    const self = this;
-    const fakeInit = (metricsResponse) => {
-      self.prometheusGraph.transformData(metricsResponse);
-      self.prometheusGraph.createGraph();
-    };
-    spyOn(this.prometheusGraph, 'init').and.callFake(fakeInit);
-  });
-
-  it('initializes graph properties', () => {
-    // Test for the measurements
-    expect(this.prometheusGraph.margin).toBeDefined();
-    expect(this.prometheusGraph.marginLabelContainer).toBeDefined();
-    expect(this.prometheusGraph.originalWidth).toBeDefined();
-    expect(this.prometheusGraph.originalHeight).toBeDefined();
-    expect(this.prometheusGraph.height).toBeDefined();
-    expect(this.prometheusGraph.width).toBeDefined();
-    expect(this.prometheusGraph.backOffRequestCounter).toBeDefined();
-    // Test for the graph properties (colors, radius, etc.)
-    expect(this.prometheusGraph.graphSpecificProperties).toBeDefined();
-    expect(this.prometheusGraph.commonGraphProperties).toBeDefined();
-  });
-
-  it('transforms the data', () => {
-    this.prometheusGraph.init(prometheusMockData.metrics);
-    Object.keys(this.prometheusGraph.graphSpecificProperties, (key) => {
-      const graphProps = this.prometheusGraph.graphSpecificProperties[key];
-      expect(graphProps.data).toBeDefined();
-      expect(graphProps.data.length).toBe(121);
-    });
-  });
-
-  it('creates two graphs', () => {
-    this.prometheusGraph.init(prometheusMockData.metrics);
-    expect($(prometheusGraphContainer).length).toBe(2);
-  });
-
-  describe('Graph contents', () => {
-    beforeEach(() => {
-      this.prometheusGraph.init(prometheusMockData.metrics);
-    });
-
-    it('has axis, an area, a line and a overlay', () => {
-      const $graphContainer = $(prometheusGraphContents).find('.x-axis').parent();
-      expect($graphContainer.find('.x-axis')).toBeDefined();
-      expect($graphContainer.find('.y-axis')).toBeDefined();
-      expect($graphContainer.find('.prometheus-graph-overlay')).toBeDefined();
-      expect($graphContainer.find('.metric-line')).toBeDefined();
-      expect($graphContainer.find('.metric-area')).toBeDefined();
-    });
-
-    it('has legends, labels and an extra axis that labels the metrics', () => {
-      const $prometheusGraphContents = $(prometheusGraphContents);
-      const $axisLabelContainer = $(prometheusGraphContents).find('.label-x-axis-line').parent();
-      expect($prometheusGraphContents.find('.label-x-axis-line')).toBeDefined();
-      expect($prometheusGraphContents.find('.label-y-axis-line')).toBeDefined();
-      expect($prometheusGraphContents.find('.label-axis-text')).toBeDefined();
-      expect($prometheusGraphContents.find('.rect-axis-text')).toBeDefined();
-      expect($axisLabelContainer.find('rect').length).toBe(3);
-      expect($axisLabelContainer.find('text').length).toBe(4);
-    });
-  });
-});
-
-describe('PrometheusGraphs UX states', () => {
-  const fixtureName = 'environments/metrics/metrics.html.raw';
-  preloadFixtures(fixtureName);
-
-  beforeEach(() => {
-    loadFixtures(fixtureName);
-    this.prometheusGraph = new PrometheusGraph();
-  });
-
-  it('shows a specified state', () => {
-    this.prometheusGraph.state = '.js-getting-started';
-    this.prometheusGraph.updateState();
-    const $state = $('.js-getting-started');
-    expect($state).toBeDefined();
-    expect($('.state-title', $state)).toBeDefined();
-    expect($('.state-svg', $state)).toBeDefined();
-    expect($('.state-description', $state)).toBeDefined();
-    expect($('.state-button', $state)).toBeDefined();
-  });
-});

spec/javascripts/monitoring/prometheus_mock_data.js

-/* eslint-disable import/prefer-default-export*/
-export const prometheusMockData = {
-  status: 200,
-  metrics: {
-    success: true,
-    metrics: {
-      memory_values: [
-        {
-          metric: {
-          },
-          values: [
-            [
-              1488462917.256,
-              '10.12890625',
-            ],
-            [
-              1488462977.256,
-              '10.140625',
-            ],
-            [
-              1488463037.256,
-              '10.140625',
-            ],
-            [
-              1488463097.256,
-              '10.14453125',
-            ],
-            [
-              1488463157.256,
-              '10.1484375',
-            ],
-            [
-              1488463217.256,
-              '10.15625',
-            ],
-            [
-              1488463277.256,
-              '10.15625',
-            ],
-            [
-              1488463337.256,
-              '10.15625',
-            ],
-            [
-              1488463397.256,
-              '10.1640625',
-            ],
-            [
-              1488463457.256,
-              '10.171875',
-            ],
-            [
-              1488463517.256,
-              '10.171875',
-            ],
-            [
-              1488463577.256,
-              '10.171875',
-            ],
-            [
-              1488463637.256,
-              '10.18359375',
-            ],
-            [
-              1488463697.256,
-              '10.1953125',
-            ],
-            [
-              1488463757.256,
-              '10.203125',
-            ],
-            [
-              1488463817.256,
-              '10.20703125',
-            ],
-            [
-              1488463877.256,
-              '10.20703125',
-            ],
-            [
-              1488463937.256,
-              '10.20703125',
-            ],
-            [
-              1488463997.256,
-              '10.20703125',
-            ],
-            [
-              1488464057.256,
-              '10.2109375',
-            ],
-            [
-              1488464117.256,
-              '10.2109375',
-            ],
-            [
-              1488464177.256,
-              '10.2109375',
-            ],
-            [
-              1488464237.256,
-              '10.2109375',
-            ],
-            [
-              1488464297.256,
-              '10.21484375',
-            ],
-            [
-              1488464357.256,
-              '10.22265625',
-            ],
-            [
-              1488464417.256,
-              '10.22265625',
-            ],
-            [
-              1488464477.256,
-              '10.2265625',
-            ],
-            [
-              1488464537.256,
-              '10.23046875',
-            ],
-            [
-              1488464597.256,
-              '10.23046875',
-            ],
-            [
-              1488464657.256,
-              '10.234375',
-            ],
-            [
-              1488464717.256,
-              '10.234375',
-            ],
-            [
-              1488464777.256,
-              '10.234375',
-            ],
-            [
-              1488464837.256,
-              '10.234375',
-            ],
-            [
-              1488464897.256,
-              '10.234375',
-            ],
-            [
-              1488464957.256,
-              '10.234375',
-            ],
-            [
-              1488465017.256,
-              '10.23828125',
-            ],
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