Merge branch 'master' into 38464-k8s-apps

88 files changed, 689 insertions, 189 deletions

diff --git a/app/assets/javascripts/boards/filtered_search_boards.js b/app/assets/javascripts/boards/filtered_search_boards.js
index 3f083655f95..184665f395c 100644
--- a/app/assets/javascripts/boards/filtered_search_boards.js
+++ b/app/assets/javascripts/boards/filtered_search_boards.js
@@ -11,7 +11,8 @@ export default class FilteredSearchBoards extends gl.FilteredSearchManager {
     // Issue boards is slightly different, we handle all the requests async
     // instead or reloading the page, we just re-fire the list ajax requests
     this.isHandledAsync = true;
-    this.cantEdit = cantEdit;
+    this.cantEdit = cantEdit.filter(i => typeof i === 'string');
+    this.cantEditWithValue = cantEdit.filter(i => typeof i === 'object');
   }
 
   updateObject(path) {
@@ -42,7 +43,9 @@ export default class FilteredSearchBoards extends gl.FilteredSearchManager {
     this.filteredSearchInput.dispatchEvent(new Event('input'));
   }
 
-  canEdit(tokenName) {
-    return this.cantEdit.indexOf(tokenName) === -1;
+  canEdit(tokenName, tokenValue) {
+    if (this.cantEdit.includes(tokenName)) return false;
+    return this.cantEditWithValue.findIndex(token => token.name === tokenName &&
+      token.value === tokenValue) === -1;
   }
 }
diff --git a/app/assets/javascripts/boards/stores/boards_store.js b/app/assets/javascripts/boards/stores/boards_store.js
index ea82958e80d..798d7e0d147 100644
--- a/app/assets/javascripts/boards/stores/boards_store.js
+++ b/app/assets/javascripts/boards/stores/boards_store.js
@@ -14,16 +14,18 @@ gl.issueBoards.BoardsStore = {
   },
   state: {},
   detail: {
-    issue: {}
+    issue: {},
   },
   moving: {
     issue: {},
-    list: {}
+    list: {},
   },
   create () {
     this.state.lists = [];
     this.filter.path = getUrlParamsArray().join('&');
-    this.detail = { issue: {} };
+    this.detail = {
+      issue: {},
+    };
   },
   addList (listObj, defaultAvatar) {
     const list = new List(listObj, defaultAvatar);
diff --git a/app/assets/javascripts/filtered_search/dropdown_utils.js b/app/assets/javascripts/filtered_search/dropdown_utils.js
index 8d711e3213c..cf8a9b0402b 100644
--- a/app/assets/javascripts/filtered_search/dropdown_utils.js
+++ b/app/assets/javascripts/filtered_search/dropdown_utils.js
@@ -147,6 +147,16 @@ class DropdownUtils {
     return dataValue !== null;
   }
 
+  static getVisualTokenValues(visualToken) {
+    const tokenName = visualToken && visualToken.querySelector('.name').textContent.trim();
+    let tokenValue = visualToken && visualToken.querySelector('.value') && visualToken.querySelector('.value').textContent.trim();
+    if (tokenName === 'label' && tokenValue) {
+      // remove leading symbol and wrapping quotes
+      tokenValue = tokenValue.replace(/^~("|')?(.*)/, '$2').replace(/("|')$/, '');
+    }
+    return { tokenName, tokenValue };
+  }
+
   // Determines the full search query (visual tokens + input)
   static getSearchQuery(untilInput = false) {
     const container = FilteredSearchContainer.container;
diff --git a/app/assets/javascripts/filtered_search/filtered_search_manager.js b/app/assets/javascripts/filtered_search/filtered_search_manager.js
index 7b233842d5a..69c57f923b6 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_manager.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_manager.js
@@ -185,8 +185,8 @@ class FilteredSearchManager {
     if (e.keyCode === 8 || e.keyCode === 46) {
       const { lastVisualToken } = gl.FilteredSearchVisualTokens.getLastVisualTokenBeforeInput();
 
-      const sanitizedTokenName = lastVisualToken && lastVisualToken.querySelector('.name').textContent.trim();
-      const canEdit = sanitizedTokenName && this.canEdit && this.canEdit(sanitizedTokenName);
+      const { tokenName, tokenValue } = gl.DropdownUtils.getVisualTokenValues(lastVisualToken);
+      const canEdit = tokenName && this.canEdit && this.canEdit(tokenName, tokenValue);
       if (this.filteredSearchInput.value === '' && lastVisualToken && canEdit) {
         this.filteredSearchInput.value = gl.FilteredSearchVisualTokens.getLastTokenPartial();
         gl.FilteredSearchVisualTokens.removeLastTokenPartial();
@@ -336,8 +336,8 @@ class FilteredSearchManager {
       let canClearToken = t.classList.contains('js-visual-token');
 
       if (canClearToken) {
-        const tokenKey = t.querySelector('.name').textContent.trim();
-        canClearToken = this.canEdit && this.canEdit(tokenKey);
+        const { tokenName, tokenValue } = gl.DropdownUtils.getVisualTokenValues(t);
+        canClearToken = this.canEdit && this.canEdit(tokenName, tokenValue);
       }
 
       if (canClearToken) {
@@ -469,7 +469,7 @@ class FilteredSearchManager {
           }
 
           hasFilteredSearch = true;
-          const canEdit = this.canEdit && this.canEdit(sanitizedKey);
+          const canEdit = this.canEdit && this.canEdit(sanitizedKey, sanitizedValue);
           gl.FilteredSearchVisualTokens.addFilterVisualToken(
             sanitizedKey,
             `${symbol}${quotationsToUse}${sanitizedValue}${quotationsToUse}`,
diff --git a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
index d2f92929b8a..6139e81fe6d 100644
--- a/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
+++ b/app/assets/javascripts/filtered_search/filtered_search_visual_tokens.js
@@ -38,21 +38,14 @@ class FilteredSearchVisualTokens {
   }
 
   static createVisualTokenElementHTML(canEdit = true) {
-    let removeTokenMarkup = '';
-    if (canEdit) {
-      removeTokenMarkup = `
-        <div class="remove-token" role="button">
-          <i class="fa fa-close"></i>
-        </div>
-      `;
-    }
-
     return `
-      <div class="selectable" role="button">
+      <div class="${canEdit ? 'selectable' : 'hidden'}" role="button">
         <div class="name"></div>
         <div class="value-container">
           <div class="value"></div>
-          ${removeTokenMarkup}
+          <div class="remove-token" role="button">
+            <i class="fa fa-close"></i>
+          </div>
         </div>
       </div>
     `;
diff --git a/app/assets/javascripts/labels_select.js b/app/assets/javascripts/labels_select.js
index 9b35efcb499..f7a1c9f1e40 100644
--- a/app/assets/javascripts/labels_select.js
+++ b/app/assets/javascripts/labels_select.js
@@ -7,7 +7,7 @@ import DropdownUtils from './filtered_search/dropdown_utils';
 import CreateLabelDropdown from './create_label';
 
 export default class LabelsSelect {
-  constructor(els) {
+  constructor(els, options = {}) {
     var _this, $els;
     _this = this;
 
@@ -57,6 +57,7 @@ export default class LabelsSelect {
         labelHTMLTemplate = _.template('<% _.each(labels, function(label){ %> <a href="<%- ["",issueURLSplit[1], issueURLSplit[2],""].join("/") %>issues?label_name[]=<%- encodeURIComponent(label.title) %>"> <span class="label has-tooltip color-label" title="<%- label.description %>" style="background-color: <%- label.color %>; color: <%- label.text_color %>;"> <%- label.title %> </span> </a> <% }); %>');
         labelNoneHTMLTemplate = '<span class="no-value">None</span>';
       }
+      const handleClick = options.handleClick;
 
       $sidebarLabelTooltip.tooltip();
 
@@ -390,6 +391,10 @@ export default class LabelsSelect {
               .then(fadeOutLoader)
               .catch(fadeOutLoader);
           }
+          else if (handleClick) {
+            e.preventDefault();
+            handleClick(label);
+          }
           else {
             if ($dropdown.hasClass('js-multiselect')) {
 
diff --git a/app/assets/javascripts/milestone_select.js b/app/assets/javascripts/milestone_select.js
index e7d5325a509..74e5a4f1cea 100644
--- a/app/assets/javascripts/milestone_select.js
+++ b/app/assets/javascripts/milestone_select.js
@@ -5,7 +5,7 @@ import _ from 'underscore';
 
 (function() {
   this.MilestoneSelect = (function() {
-    function MilestoneSelect(currentProject, els) {
+    function MilestoneSelect(currentProject, els, options = {}) {
       var _this, $els;
       if (currentProject != null) {
         _this = this;
@@ -136,19 +136,26 @@ import _ from 'underscore';
           },
           opened: function(e) {
             const $el = $(e.currentTarget);
-            if ($dropdown.hasClass('js-issue-board-sidebar')) {
+            if ($dropdown.hasClass('js-issue-board-sidebar') || options.handleClick) {
               selectedMilestone = $dropdown[0].dataset.selected || selectedMilestoneDefault;
             }
             $('a.is-active', $el).removeClass('is-active');
             $(`[data-milestone-id="${selectedMilestone}"] > a`, $el).addClass('is-active');
           },
           vue: $dropdown.hasClass('js-issue-board-sidebar'),
-          clicked: function(options) {
-            const { $el, e } = options;
-            let selected = options.selectedObj;
+          clicked: function(clickEvent) {
+            const { $el, e } = clickEvent;
+            let selected = clickEvent.selectedObj;
 
             var data, isIssueIndex, isMRIndex, isSelecting, page, boardsStore;
             if (!selected) return;
+
+            if (options.handleClick) {
+              e.preventDefault();
+              options.handleClick(selected);
+              return;
+            }
+
             page = $('body').attr('data-page');
             isIssueIndex = page === 'projects:issues:index';
             isMRIndex = (page === page && page === 'projects:merge_requests:index');
diff --git a/app/assets/javascripts/monitoring/components/graph.vue b/app/assets/javascripts/monitoring/components/graph.vue
index 5aa3865f96a..f8782fde927 100644
--- a/app/assets/javascripts/monitoring/components/graph.vue
+++ b/app/assets/javascripts/monitoring/components/graph.vue
@@ -138,7 +138,7 @@
 
       renderAxesPaths() {
         this.timeSeries = createTimeSeries(
-          this.graphData.queries[0],
+          this.graphData.queries,
           this.graphWidth,
           this.graphHeight,
           this.graphHeightOffset,
@@ -153,8 +153,9 @@
         const axisYScale = d3.scale.linear()
           .range([this.graphHeight - this.graphHeightOffset, 0]);
 
-        axisXScale.domain(d3.extent(this.timeSeries[0].values, d => d.time));
-        axisYScale.domain([0, d3.max(this.timeSeries[0].values.map(d => d.value))]);
+        const allValues = this.timeSeries.reduce((all, { values }) => all.concat(values), []);
+        axisXScale.domain(d3.extent(allValues, d => d.time));
+        axisYScale.domain([0, d3.max(allValues.map(d => d.value))]);
 
         const xAxis = d3.svg.axis()
           .scale(axisXScale)
@@ -246,6 +247,7 @@
               :key="index"
               :generated-line-path="path.linePath"
               :generated-area-path="path.areaPath"
+              :line-style="path.lineStyle"
               :line-color="path.lineColor"
               :area-color="path.areaColor"
             />
diff --git a/app/assets/javascripts/monitoring/components/graph/legend.vue b/app/assets/javascripts/monitoring/components/graph/legend.vue
index 85b6d7f4cbe..440b1b12631 100644
--- a/app/assets/javascripts/monitoring/components/graph/legend.vue
+++ b/app/assets/javascripts/monitoring/components/graph/legend.vue
@@ -79,7 +79,8 @@
       },
 
       formatMetricUsage(series) {
-        const value = series.values[this.currentDataIndex].value;
+        const value = series.values[this.currentDataIndex] &&
+          series.values[this.currentDataIndex].value;
         if (isNaN(value)) {
           return '-';
         }
@@ -92,6 +93,12 @@
         }
         return `${this.legendTitle} series ${index + 1} ${this.formatMetricUsage(series)}`;
       },
+
+      strokeDashArray(type) {
+        if (type === 'dashed') return '6, 3';
+        if (type === 'dotted') return '3, 3';
+        return null;
+      },
     },
     mounted() {
       this.$nextTick(() => {
@@ -162,13 +169,15 @@
       v-for="(series, index) in timeSeries"
       :key="index"
       :transform="translateLegendGroup(index)">
-      <rect
-        :fill="series.areaColor"
-        :width="measurements.legends.width"
-        :height="measurements.legends.height"
-        x="20"
-        :y="graphHeight - measurements.legendOffset">
-      </rect>
+      <line
+        :stroke="series.lineColor"
+        :stroke-width="measurements.legends.height"
+        :stroke-dasharray="strokeDashArray(series.lineStyle)"
+        :x1="measurements.legends.offsetX"
+        :x2="measurements.legends.offsetX + measurements.legends.width"
+        :y1="graphHeight - measurements.legends.offsetY"
+        :y2="graphHeight - measurements.legends.offsetY">
+      </line>
       <text
         v-if="timeSeries.length > 1"
         class="legend-metric-title"
diff --git a/app/assets/javascripts/monitoring/components/graph/path.vue b/app/assets/javascripts/monitoring/components/graph/path.vue
index 043f1bf66bb..5e6d409033a 100644
--- a/app/assets/javascripts/monitoring/components/graph/path.vue
+++ b/app/assets/javascripts/monitoring/components/graph/path.vue
@@ -9,6 +9,10 @@
         type: String,
         required: true,
       },
+      lineStyle: {
+        type: String,
+        required: false,
+      },
       lineColor: {
         type: String,
         required: true,
@@ -18,6 +22,13 @@
         required: true,
       },
     },
+    computed: {
+      strokeDashArray() {
+        if (this.lineStyle === 'dashed') return '3, 1';
+        if (this.lineStyle === 'dotted') return '1, 1';
+        return null;
+      },
+    },
   };
 </script>
 <template>
@@ -34,6 +45,7 @@
       :stroke="lineColor"
       fill="none"
       stroke-width="1"
+      :stroke-dasharray="strokeDashArray"
       transform="translate(-5, 20)">
     </path>
   </g>
diff --git a/app/assets/javascripts/monitoring/utils/measurements.js b/app/assets/javascripts/monitoring/utils/measurements.js
index ee3c45efacc..ee866850e13 100644
--- a/app/assets/javascripts/monitoring/utils/measurements.js
+++ b/app/assets/javascripts/monitoring/utils/measurements.js
@@ -7,15 +7,16 @@ export default {
       left: 40,
     },
     legends: {
-      width: 10,
+      width: 15,
       height: 3,
+      offsetX: 20,
+      offsetY: 32,
     },
     backgroundLegend: {
       width: 30,
       height: 50,
     },
     axisLabelLineOffset: -20,
-    legendOffset: 33,
   },
   large: { // This covers both md and lg screen sizes
     margin: {
@@ -27,13 +28,14 @@ export default {
     legends: {
       width: 15,
       height: 3,
+      offsetX: 20,
+      offsetY: 34,
     },
     backgroundLegend: {
       width: 30,
       height: 150,
     },
     axisLabelLineOffset: 20,
-    legendOffset: 36,
   },
   xTicks: 8,
   yTicks: 3,
diff --git a/app/assets/javascripts/monitoring/utils/multiple_time_series.js b/app/assets/javascripts/monitoring/utils/multiple_time_series.js
index 65eec0d8d02..d21a265bd43 100644
--- a/app/assets/javascripts/monitoring/utils/multiple_time_series.js
+++ b/app/assets/javascripts/monitoring/utils/multiple_time_series.js
@@ -11,7 +11,9 @@ const defaultColorPalette = {
 
 const defaultColorOrder = ['blue', 'orange', 'red', 'green', 'purple'];
 
-export default function createTimeSeries(queryData, graphWidth, graphHeight, graphHeightOffset) {
+const defaultStyleOrder = ['solid', 'dashed', 'dotted'];
+
+function queryTimeSeries(query, graphWidth, graphHeight, graphHeightOffset, xDom, yDom, lineStyle) {
   let usedColors = [];
 
   function pickColor(name) {
@@ -31,17 +33,7 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
     return defaultColorPalette[pick];
   }
 
-  const maxValues = queryData.result.map((timeSeries, index) => {
-    const maxValue = d3.max(timeSeries.values.map(d => d.value));
-    return {
-      maxValue,
-      index,
-    };
-  });
-
-  const maxValueFromSeries = _.max(maxValues, val => val.maxValue);
-
-  return queryData.result.map((timeSeries, timeSeriesNumber) => {
+  return query.result.map((timeSeries, timeSeriesNumber) => {
     let metricTag = '';
     let lineColor = '';
     let areaColor = '';
@@ -52,9 +44,9 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
     const timeSeriesScaleY = d3.scale.linear()
       .range([graphHeight - graphHeightOffset, 0]);
 
-    timeSeriesScaleX.domain(d3.extent(timeSeries.values, d => d.time));
+    timeSeriesScaleX.domain(xDom);
     timeSeriesScaleX.ticks(d3.time.minute, 60);
-    timeSeriesScaleY.domain([0, maxValueFromSeries.maxValue]);
+    timeSeriesScaleY.domain(yDom);
 
     const defined = d => !isNaN(d.value) && d.value != null;
 
@@ -72,10 +64,10 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
       .y1(d => timeSeriesScaleY(d.value));
 
     const timeSeriesMetricLabel = timeSeries.metric[Object.keys(timeSeries.metric)[0]];
-    const seriesCustomizationData = queryData.series != null &&
-                                    _.findWhere(queryData.series[0].when,
-                                    { value: timeSeriesMetricLabel });
-    if (seriesCustomizationData != null) {
+    const seriesCustomizationData = query.series != null &&
+      _.findWhere(query.series[0].when, { value: timeSeriesMetricLabel });
+
+    if (seriesCustomizationData) {
       metricTag = seriesCustomizationData.value || timeSeriesMetricLabel;
       [lineColor, areaColor] = pickColor(seriesCustomizationData.color);
     } else {
@@ -83,14 +75,35 @@ export default function createTimeSeries(queryData, graphWidth, graphHeight, gra
       [lineColor, areaColor] = pickColor();
     }
 
+    if (query.track) {
+      metricTag += ` - ${query.track}`;
+    }
+
     return {
       linePath: lineFunction(timeSeries.values),
       areaPath: areaFunction(timeSeries.values),
       timeSeriesScaleX,
       values: timeSeries.values,
+      lineStyle,
       lineColor,
       areaColor,
       metricTag,
     };
   });
 }
+
+export default function createTimeSeries(queries, graphWidth, graphHeight, graphHeightOffset) {
+  const allValues = queries.reduce((allQueryResults, query) => allQueryResults.concat(
+    query.result.reduce((allResults, result) => allResults.concat(result.values), []),
+  ), []);
+
+  const xDom = d3.extent(allValues, d => d.time);
+  const yDom = [0, d3.max(allValues.map(d => d.value))];
+
+  return queries.reduce((series, query, index) => {
+    const lineStyle = defaultStyleOrder[index % defaultStyleOrder.length];
+    return series.concat(
+      queryTimeSeries(query, graphWidth, graphHeight, graphHeightOffset, xDom, yDom, lineStyle),
+    );
+  }, []);
+}
diff --git a/app/assets/javascripts/users_select.js b/app/assets/javascripts/users_select.js
index a0883b32593..759cc9925f4 100644
--- a/app/assets/javascripts/users_select.js
+++ b/app/assets/javascripts/users_select.js
@@ -6,7 +6,7 @@ import _ from 'underscore';
 // TODO: remove eventHub hack after code splitting refactor
 window.emitSidebarEvent = window.emitSidebarEvent || $.noop;
 
-function UsersSelect(currentUser, els) {
+function UsersSelect(currentUser, els, options = {}) {
   var $els;
   this.users = this.users.bind(this);
   this.user = this.user.bind(this);
@@ -20,6 +20,8 @@ function UsersSelect(currentUser, els) {
     }
   }
 
+  const { handleClick } = options;
+
   $els = $(els);
 
   if (!els) {
@@ -442,6 +444,9 @@ function UsersSelect(currentUser, els) {
           }
           if ($el.closest('.add-issues-modal').length) {
             gl.issueBoards.ModalStore.store.filter[$dropdown.data('field-name')] = user.id;
+          } else if (handleClick) {
+            e.preventDefault();
+            handleClick(user, isMarking);
           } else if ($dropdown.hasClass('js-filter-submit') && (isIssueIndex || isMRIndex)) {
             return Issuable.filterResults($dropdown.closest('form'));
           } else if ($dropdown.hasClass('js-filter-submit')) {
diff --git a/app/assets/javascripts/vue_shared/components/popup_dialog.vue b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
index 9e8c10bdc1a..47efee64c6e 100644
--- a/app/assets/javascripts/vue_shared/components/popup_dialog.vue
+++ b/app/assets/javascripts/vue_shared/components/popup_dialog.vue
@@ -5,17 +5,27 @@ export default {
   props: {
     title: {
       type: String,
-      required: true,
+      required: false,
     },
     text: {
       type: String,
       required: false,
     },
+    hideFooter: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
     kind: {
       type: String,
       required: false,
       default: 'primary',
     },
+    modalDialogClass: {
+      type: String,
+      required: false,
+      default: '',
+    },
     closeKind: {
       type: String,
       required: false,
@@ -30,6 +40,11 @@ export default {
       type: String,
       required: true,
     },
+    submitDisabled: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
   },
 
   computed: {
@@ -57,43 +72,58 @@ export default {
 </script>
 
 <template>
-<div
-  class="modal popup-dialog"
-  role="dialog"
-  tabindex="-1">
-  <div class="modal-dialog" role="document">
-    <div class="modal-content">
-      <div class="modal-header">
-        <button type="button"
-          class="close"
-          @click="close"
-          aria-label="Close">
-          <span aria-hidden="true">&times;</span>
-        </button>
-        <h4 class="modal-title">{{this.title}}</h4>
-      </div>
-      <div class="modal-body">
-        <slot name="body" :text="text">
-          <p>{{text}}</p>
-        </slot>
-      </div>
-      <div class="modal-footer">
-        <button
-          type="button"
-          class="btn"
-          :class="btnCancelKindClass"
-          @click="close">
-          {{ closeButtonLabel }}
-        </button>
-        <button
-          type="button"
-          class="btn"
-          :class="btnKindClass"
-          @click="emitSubmit(true)">
-          {{ primaryButtonLabel }}
-        </button>
+<div class="modal-open">
+  <div
+    class="modal popup-dialog"
+    role="dialog"
+    tabindex="-1"
+  >
+    <div
+      :class="modalDialogClass"
+      class="modal-dialog"
+      role="document"
+    >
+      <div class="modal-content">
+        <div class="modal-header">
+          <slot name="header">
+            <h4 class="modal-title pull-left">
+              {{this.title}}
+            </h4>
+            <button
+              type="button"
+              class="close pull-right"
+              @click="close"
+              aria-label="Close"
+            >
+              <span aria-hidden="true">&times;</span>
+            </button>
+          </slot>
+        </div>
+        <div class="modal-body">
+          <slot name="body" :text="text">
+            <p>{{this.text}}</p>
+          </slot>
+        </div>
+        <div class="modal-footer" v-if="!hideFooter">
+          <button
+            type="button"
+            class="btn pull-left"
+            :class="btnCancelKindClass"
+            @click="close">
+            {{ closeButtonLabel }}
+          </button>
+          <button
+            type="button"
+            class="btn pull-right"
+            :disabled="submitDisabled"
+            :class="btnKindClass"
+            @click="emitSubmit(true)">
+            {{ primaryButtonLabel }}
+          </button>
+        </div>
       </div>
     </div>
   </div>
+  <div class="modal-backdrop fade in" />
 </div>
 </template>
diff --git a/app/assets/stylesheets/framework/common.scss b/app/assets/stylesheets/framework/common.scss
index 393a0052114..5f5b5657a2f 100644
--- a/app/assets/stylesheets/framework/common.scss
+++ b/app/assets/stylesheets/framework/common.scss
@@ -4,6 +4,9 @@
 .cred { color: $common-red; }
 .cgreen { color: $common-green; }
 .cdark { color: $common-gray-dark; }
+.text-secondary {
+  color: $gl-text-color-secondary;
+}
 
 .underlined-link { text-decoration: underline; }
 .hint { font-style: italic; color: $hint-color; }
diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index 08c603edd23..579bd48fac6 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -37,6 +37,7 @@
   .dropdown-menu-nav {
     @include set-visible;
     display: block;
+    min-height: 40px;
 
     @media (max-width: $screen-xs-max) {
       width: 100%;
diff --git a/app/assets/stylesheets/framework/modal.scss b/app/assets/stylesheets/framework/modal.scss
index 1cebd02df48..5c9838c1029 100644
--- a/app/assets/stylesheets/framework/modal.scss
+++ b/app/assets/stylesheets/framework/modal.scss
@@ -7,6 +7,7 @@
 }
 
 .modal-body {
+  background-color: $modal-body-bg;
   position: relative;
   padding: #{3 * $grid-size} #{2 * $grid-size};
 
@@ -42,3 +43,8 @@ body.modal-open {
     width: 98%;
   }
 }
+
+.modal.popup-dialog {
+  display: block;
+}
+
diff --git a/app/assets/stylesheets/framework/tw_bootstrap_variables.scss b/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
index 3ea77eb7a43..a23131e0818 100644
--- a/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
+++ b/app/assets/stylesheets/framework/tw_bootstrap_variables.scss
@@ -164,3 +164,36 @@ $pre-border-color: $border-color;
 $table-bg-accent: $gray-light;
 
 $zindex-popover: 900;
+
+//== Modals
+//
+//##
+
+//** Padding applied to the modal body
+$modal-inner-padding: $gl-padding;
+
+//** Padding applied to the modal title
+$modal-title-padding: $gl-padding;
+//** Modal title line-height
+// $modal-title-line-height:     $line-height-base
+
+//** Background color of modal content area
+$modal-content-bg: $gray-light;
+$modal-body-bg: $white-light;
+//** Modal content border color
+// $modal-content-border-color:                   rgba(0,0,0,.2)
+//** Modal content border color **for IE8**
+// $modal-content-fallback-border-color:          #999
+
+//** Modal backdrop background color
+// $modal-backdrop-bg:           #000
+//** Modal backdrop opacity
+// $modal-backdrop-opacity:      .5
+//** Modal header border color
+// $modal-header-border-color:   #e5e5e5
+//** Modal footer border color
+// $modal-footer-border-color:   $modal-header-border-color
+
+// $modal-lg:                    900px
+// $modal-md:                    600px
+// $modal-sm:                    300px
diff --git a/app/controllers/projects/clusters_controller.rb b/app/controllers/projects/clusters_controller.rb
index c1692ea2569..9a56c9de858 100644
--- a/app/controllers/projects/clusters_controller.rb
+++ b/app/controllers/projects/clusters_controller.rb
@@ -1,8 +1,8 @@
 class Projects::ClustersController < Projects::ApplicationController
-  before_action :cluster, except: [:login, :index, :new, :create]
+  before_action :cluster, except: [:login, :index, :new, :new_gcp, :create]
   before_action :authorize_read_cluster!
-  before_action :authorize_create_cluster!, only: [:new, :create]
-  before_action :authorize_google_api, only: [:new, :create]
+  before_action :authorize_create_cluster!, only: [:new, :new_gcp, :create]
+  before_action :authorize_google_api, only: [:new_gcp, :create]
   before_action :authorize_update_cluster!, only: [:update]
   before_action :authorize_admin_cluster!, only: [:destroy]
 
@@ -16,7 +16,7 @@ class Projects::ClustersController < Projects::ApplicationController
 
   def login
     begin
-      state = generate_session_key_redirect(namespace_project_clusters_url.to_s)
+      state = generate_session_key_redirect(providers_gcp_new_namespace_project_clusters_url.to_s)
 
       @authorize_url = GoogleApi::CloudPlatform::Client.new(
         nil, callback_google_api_auth_url,
@@ -27,6 +27,9 @@ class Projects::ClustersController < Projects::ApplicationController
   end
 
   def new
+  end
+
+  def new_gcp
     @cluster = Clusters::Cluster.new.tap do |cluster|
       cluster.build_provider_gcp
     end
@@ -40,7 +43,7 @@ class Projects::ClustersController < Projects::ApplicationController
     if @cluster.persisted?
       redirect_to project_cluster_path(project, @cluster)
     else
-      render :new
+      render :new_gcp
     end
   end
 
diff --git a/app/finders/groups_finder.rb b/app/finders/groups_finder.rb
index 0c4c4b10fb6..0282b378d88 100644
--- a/app/finders/groups_finder.rb
+++ b/app/finders/groups_finder.rb
@@ -15,6 +15,8 @@
 # Anonymous users will never return any `owned` groups. They will return all
 # public groups instead, even if `all_available` is set to false.
 class GroupsFinder < UnionFinder
+  include CustomAttributesFilter
+
   def initialize(current_user = nil, params = {})
     @current_user = current_user
     @params = params
@@ -22,8 +24,12 @@ class GroupsFinder < UnionFinder
 
   def execute
     items = all_groups.map do |item|
-      by_parent(item)
+      item = by_parent(item)
+      item = by_custom_attributes(item)
+
+      item
     end
+
     find_union(items, Group).with_route.order_id_desc
   end
 
diff --git a/app/finders/projects_finder.rb b/app/finders/projects_finder.rb
index eac6095d8dc..005612ededc 100644
--- a/app/finders/projects_finder.rb
+++ b/app/finders/projects_finder.rb
@@ -18,6 +18,8 @@
 #     non_archived: boolean
 #
 class ProjectsFinder < UnionFinder
+  include CustomAttributesFilter
+
   attr_accessor :params
   attr_reader :current_user, :project_ids_relation
 
@@ -44,6 +46,7 @@ class ProjectsFinder < UnionFinder
     collection = by_tags(collection)
     collection = by_search(collection)
     collection = by_archived(collection)
+    collection = by_custom_attributes(collection)
 
     sort(collection)
   end
diff --git a/app/helpers/boards_helper.rb b/app/helpers/boards_helper.rb
index 7112c6ee470..c4a621160af 100644
--- a/app/helpers/boards_helper.rb
+++ b/app/helpers/boards_helper.rb
@@ -20,17 +20,6 @@ module BoardsHelper
     project_issues_path(@project)
   end
 
-  def current_board_json
-    board = @board || @boards.first
-
-    board.to_json(
-      only: [:id, :name, :milestone_id],
-      include: {
-        milestone: { only: [:title] }
-      }
-    )
-  end
-
   def board_base_url
     project_boards_path(@project)
   end
diff --git a/app/models/group.rb b/app/models/group.rb
index c660de7fcb6..8cf632fb566 100644
--- a/app/models/group.rb
+++ b/app/models/group.rb
@@ -26,6 +26,7 @@ class Group < Namespace
   has_many :notification_settings, dependent: :destroy, as: :source # rubocop:disable Cop/ActiveRecordDependent
   has_many :labels, class_name: 'GroupLabel'
   has_many :variables, class_name: 'Ci::GroupVariable'
+  has_many :custom_attributes, class_name: 'GroupCustomAttribute'
 
   validate :avatar_type, if: ->(user) { user.avatar.present? && user.avatar_changed? }
   validate :visibility_level_allowed_by_projects
diff --git a/app/models/group_custom_attribute.rb b/app/models/group_custom_attribute.rb
new file mode 100644
index 00000000000..8157d602d67
--- /dev/null
+++ b/app/models/group_custom_attribute.rb
@@ -0,0 +1,6 @@
+class GroupCustomAttribute < ActiveRecord::Base
+  belongs_to :group
+
+  validates :group, :key, :value, presence: true
+  validates :key, uniqueness: { scope: [:group_id] }
+end
diff --git a/app/models/project.rb b/app/models/project.rb
index 110326ebb8e..53df29dab02 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -216,6 +216,7 @@ class Project < ActiveRecord::Base
   has_many :active_runners, -> { active }, through: :runner_projects, source: :runner, class_name: 'Ci::Runner'
 
   has_one :auto_devops, class_name: 'ProjectAutoDevops'
+  has_many :custom_attributes, class_name: 'ProjectCustomAttribute'
 
   accepts_nested_attributes_for :variables, allow_destroy: true
   accepts_nested_attributes_for :project_feature, update_only: true
diff --git a/app/models/project_custom_attribute.rb b/app/models/project_custom_attribute.rb
new file mode 100644
index 00000000000..3f1a7b86a82
--- /dev/null
+++ b/app/models/project_custom_attribute.rb
@@ -0,0 +1,6 @@
+class ProjectCustomAttribute < ActiveRecord::Base
+  belongs_to :project
+
+  validates :project, :key, :value, presence: true
+  validates :key, uniqueness: { scope: [:project_id] }
+end
diff --git a/app/models/project_services/chat_message/issue_message.rb b/app/models/project_services/chat_message/issue_message.rb
index 1327b075858..3273f41dbd2 100644
--- a/app/models/project_services/chat_message/issue_message.rb
+++ b/app/models/project_services/chat_message/issue_message.rb
@@ -39,7 +39,7 @@ module ChatMessage
     private
 
     def message
-      if state == 'opened'
+      if opened_issue?
         "[#{project_link}] Issue #{state} by #{user_combined_name}"
       else
         "[#{project_link}] Issue #{issue_link} #{state} by #{user_combined_name}"
diff --git a/app/models/repository.rb b/app/models/repository.rb
index ef715d982ae..eb7766d040c 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -906,13 +906,13 @@ class Repository
     branch = Gitlab::Git::Branch.find(self, branch_or_name)
 
     if branch
-      root_ref_sha = commit(root_ref).sha
-      same_head = branch.target == root_ref_sha
+      @root_ref_sha ||= commit(root_ref).sha
+      same_head = branch.target == @root_ref_sha
       merged =
         if pre_loaded_merged_branches
           pre_loaded_merged_branches.include?(branch.name)
         else
-          ancestor?(branch.target, root_ref_sha)
+          ancestor?(branch.target, @root_ref_sha)
         end
 
       !same_head && merged
diff --git a/app/views/projects/clusters/_advanced_settings.html.haml b/app/views/projects/clusters/_advanced_settings.html.haml
index 6c162481dd8..97532f1e2bd 100644
--- a/app/views/projects/clusters/_advanced_settings.html.haml
+++ b/app/views/projects/clusters/_advanced_settings.html.haml
@@ -10,5 +10,5 @@
     %label.text-danger
       = s_('ClusterIntegration|Remove cluster integration')
     %p
-      = s_('ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your project.')
+      = s_('ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your cluster on Google Container Engine.')
     = link_to(s_('ClusterIntegration|Remove integration'), namespace_project_cluster_path(@project.namespace, @project, @cluster.id), method: :delete, class: 'btn btn-danger', data: { confirm: "Are you sure you want to remove cluster integration from this project? This will not delete your cluster on Google Container Engine"})
diff --git a/app/views/projects/clusters/_header.html.haml b/app/views/projects/clusters/_header.html.haml
index 0134d46491c..beb798e7154 100644
--- a/app/views/projects/clusters/_header.html.haml
+++ b/app/views/projects/clusters/_header.html.haml
@@ -11,4 +11,4 @@
       = s_('ClusterIntegration|Make sure your account %{link_to_requirements} to create clusters').html_safe % { link_to_requirements: link_to_requirements }
     %li
       - link_to_container_project = link_to(s_('ClusterIntegration|Google Container Engine project'), target: '_blank', rel: 'noopener noreferrer')
-      = s_('ClusterIntegration|A %{link_to_container_project} must have been created under this account').html_safe % { link_to_container_project: link_to_container_project }
+      = s_('ClusterIntegration|This account must have permissions to create a cluster in the %{link_to_container_project} specified below').html_safe % { link_to_container_project: link_to_container_project }
diff --git a/app/views/projects/clusters/new.html.haml b/app/views/projects/clusters/new.html.haml
index c538d41ffad..6b321f60212 100644
--- a/app/views/projects/clusters/new.html.haml
+++ b/app/views/projects/clusters/new.html.haml
@@ -1,9 +1,20 @@
 - breadcrumb_title "Cluster"
-- page_title _("New Cluster")
+- page_title _("Cluster")
 
 .row.prepend-top-default
   .col-sm-4
     = render 'sidebar'
   .col-sm-8
-    = render 'header'
-= render 'form'
+    - if @project.kubernetes_service&.active?
+      %h4.prepend-top-0= s_('ClusterIntegration|Cluster management')
+
+      %p= s_('ClusterIntegration|A cluster has been set up on this project through the Kubernetes integration page')
+      = link_to s_('ClusterIntegration|Manage Kubernetes integration'), edit_project_service_path(@project, :kubernetes), class: 'btn append-bottom-20'
+
+    - else
+      %h4.prepend-top-0= s_('ClusterIntegration|Choose how to set up cluster integration')
+
+      %p= s_('ClusterIntegration|Create a new cluster on Google Container Engine right from GitLab')
+      = link_to s_('ClusterIntegration|Create on GKE'), providers_gcp_new_namespace_project_clusters_path(@project.namespace, @project), class: 'btn append-bottom-20'
+      %p= s_('ClusterIntegration|Enter the details for an existing Kubernetes cluster')
+      = link_to s_('ClusterIntegration|Add an existing cluster'), edit_project_service_path(@project, :kubernetes), class: 'btn append-bottom-20'
diff --git a/app/views/projects/clusters/new_gcp.html.haml b/app/views/projects/clusters/new_gcp.html.haml
new file mode 100644
index 00000000000..48e6b6ae8e8
--- /dev/null
+++ b/app/views/projects/clusters/new_gcp.html.haml
@@ -0,0 +1,10 @@
+- breadcrumb_title "Cluster"
+- page_title _("New Cluster")
+
+.row.prepend-top-default
+  .col-sm-4
+    = render 'sidebar'
+  .col-sm-8
+    = render 'header'
+
+= render 'form'
diff --git a/app/views/shared/_ref_switcher.html.haml b/app/views/shared/_ref_switcher.html.haml
index 6d7c9633913..6356e9f92cb 100644
--- a/app/views/shared/_ref_switcher.html.haml
+++ b/app/views/shared/_ref_switcher.html.haml
@@ -7,7 +7,7 @@
   - @options && @options.each do |key, value|
     = hidden_field_tag key, value, id: nil
   .dropdown
-    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: @ref, refs_url: refs_project_path(@project), field_name: 'ref', submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown" }
+    = dropdown_toggle dropdown_toggle_text, { toggle: "dropdown", selected: dropdown_toggle_text, ref: @ref, refs_url: refs_project_path(@project, sort: 'updated_desc'), field_name: 'ref', submit_form_on_click: true, visit: true }, { toggle_class: "js-project-refs-dropdown" }
     .dropdown-menu.dropdown-menu-selectable.git-revision-dropdown.dropdown-menu-paging{ class: ("dropdown-menu-align-right" if local_assigns[:align_right]) }
       .dropdown-page-one
         = dropdown_title _("Switch branch/tag")
diff --git a/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml b/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml
new file mode 100644
index 00000000000..11a11a289bf
--- /dev/null
+++ b/changelogs/unreleased/37442-api-branches-id-repository-branches-is-calling-gitaly-n-1-times-per-request.yml
@@ -0,0 +1,5 @@
+---
+title: Improve performance of the /projects/:id/repository/branches API endpoint
+merge_request: 15215
+author:
+type: performance
diff --git a/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml b/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml
new file mode 100644
index 00000000000..143641c6183
--- /dev/null
+++ b/changelogs/unreleased/39791-when-reopening-an-issue-the-mattermost-notification-has-no-context-to-the-issue.yml
@@ -0,0 +1,5 @@
+---
+title: Include link to issue in reopen message for Slack and Mattermost notifications
+merge_request:
+author:
+type: fixed
diff --git a/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml b/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml
new file mode 100644
index 00000000000..d0a00fafb52
--- /dev/null
+++ b/changelogs/unreleased/add-changes-count-to-merge-requests-api.yml
@@ -0,0 +1,5 @@
+---
+title: Add a count of changes to the merge requests API
+merge_request:
+author:
+type: changed
diff --git a/changelogs/unreleased/bugfix_banzai_closed_milestones.yml b/changelogs/unreleased/bugfix_banzai_closed_milestones.yml
new file mode 100644
index 00000000000..4b5c716ddad
--- /dev/null
+++ b/changelogs/unreleased/bugfix_banzai_closed_milestones.yml
@@ -0,0 +1,5 @@
+---
+title: Fix GFM reference links for closed milestones
+merge_request: 15234
+author: Vitaliy @blackst0ne Klachkov
+type: fixed
diff --git a/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml b/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml
new file mode 100644
index 00000000000..9eae989a270
--- /dev/null
+++ b/changelogs/unreleased/feature-custom-attributes-on-projects-and-groups.yml
@@ -0,0 +1,5 @@
+---
+title: Support custom attributes on groups and projects
+merge_request: 14593
+author: Markus Koller
+type: changed
diff --git a/changelogs/unreleased/feature_change_sort_refs.yml b/changelogs/unreleased/feature_change_sort_refs.yml
new file mode 100644
index 00000000000..2dccd87d228
--- /dev/null
+++ b/changelogs/unreleased/feature_change_sort_refs.yml
@@ -0,0 +1,5 @@
+---
+title: Change tags order in refs dropdown
+merge_request: 15235
+author: Vitaliy @blackst0ne Klachkov
+type: changed
diff --git a/changelogs/unreleased/multiple-query-prometheus-graphs.yml b/changelogs/unreleased/multiple-query-prometheus-graphs.yml
new file mode 100644
index 00000000000..9d09166845e
--- /dev/null
+++ b/changelogs/unreleased/multiple-query-prometheus-graphs.yml
@@ -0,0 +1,6 @@
+---
+title: Allow multiple queries in a single Prometheus graph to support additional environments
+  (Canary, Staging, et al.)
+merge_request: 15201
+author:
+type: added
diff --git a/config/prometheus/additional_metrics.yml b/config/prometheus/additional_metrics.yml
index 33b897f46e2..190eeb59a2c 100644
--- a/config/prometheus/additional_metrics.yml
+++ b/config/prometheus/additional_metrics.yml
@@ -145,7 +145,7 @@
       - container_memory_usage_bytes
     weight: 1
     queries:
-    - query_range: '(sum(container_memory_usage_bytes{container_name!="POD",%{environment_filter}}) / count(container_memory_usage_bytes{container_name!="POD",%{environment_filter}})) /1024/1024'
+    - query_range: '(sum(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"}) / count(container_memory_usage_bytes{container_name!="POD",environment="%{ci_environment_slug}"})) /1024/1024'
       label: Average
       unit: MB
   - title: "CPU Utilization"
@@ -154,7 +154,7 @@
      - container_cpu_usage_seconds_total
     weight: 1
     queries:
-    - query_range: 'sum(rate(container_cpu_usage_seconds_total{container_name!="POD",%{environment_filter}}[2m])) by (cpu)  * 100'
+    - query_range: 'sum(rate(container_cpu_usage_seconds_total{container_name!="POD",environment="%{ci_environment_slug}"}[2m])) * 100'
       label: CPU
       unit: "%"
       series:
diff --git a/config/routes/project.rb b/config/routes/project.rb
index a1e429e6c20..cb0e6078db0 100644
--- a/config/routes/project.rb
+++ b/config/routes/project.rb
@@ -186,6 +186,7 @@ constraints(ProjectUrlConstrainer.new) do
       resources :clusters, except: [:edit] do
         collection do
           get :login
+          get '/providers/gcp/new', action: :new_gcp
         end
 
         member do
diff --git a/db/migrate/20170918111708_create_project_custom_attributes.rb b/db/migrate/20170918111708_create_project_custom_attributes.rb
new file mode 100644
index 00000000000..b5bc90ec02e
--- /dev/null
+++ b/db/migrate/20170918111708_create_project_custom_attributes.rb
@@ -0,0 +1,15 @@
+class CreateProjectCustomAttributes < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    create_table :project_custom_attributes do |t|
+      t.timestamps_with_timezone null: false
+      t.references :project, null: false, foreign_key: { on_delete: :cascade }
+      t.string :key, null: false
+      t.string :value, null: false
+
+      t.index [:project_id, :key], unique: true
+      t.index [:key, :value]
+    end
+  end
+end
diff --git a/db/migrate/20170918140927_create_group_custom_attributes.rb b/db/migrate/20170918140927_create_group_custom_attributes.rb
new file mode 100644
index 00000000000..3879ea15eb6
--- /dev/null
+++ b/db/migrate/20170918140927_create_group_custom_attributes.rb
@@ -0,0 +1,19 @@
+class CreateGroupCustomAttributes < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :group_custom_attributes do |t|
+      t.timestamps_with_timezone null: false
+      t.references :group, null: false
+      t.string :key, null: false
+      t.string :value, null: false
+
+      t.index [:group_id, :key], unique: true
+      t.index [:key, :value]
+    end
+
+    add_foreign_key :group_custom_attributes, :namespaces, column: :group_id, on_delete: :cascade # rubocop: disable Migration/AddConcurrentForeignKey
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index efd24bd0eeb..1d2bf3a8e23 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -759,6 +759,17 @@ ActiveRecord::Schema.define(version: 20171106101200) do
   add_index "gpg_signatures", ["gpg_key_subkey_id"], name: "index_gpg_signatures_on_gpg_key_subkey_id", using: :btree
   add_index "gpg_signatures", ["project_id"], name: "index_gpg_signatures_on_project_id", using: :btree
 
+  create_table "group_custom_attributes", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "group_id", null: false
+    t.string "key", null: false
+    t.string "value", null: false
+  end
+
+  add_index "group_custom_attributes", ["group_id", "key"], name: "index_group_custom_attributes_on_group_id_and_key", unique: true, using: :btree
+  add_index "group_custom_attributes", ["key", "value"], name: "index_group_custom_attributes_on_key_and_value", using: :btree
+
   create_table "identities", force: :cascade do |t|
     t.string "extern_uid"
     t.string "provider"
@@ -1279,6 +1290,17 @@ ActiveRecord::Schema.define(version: 20171106101200) do
 
   add_index "project_auto_devops", ["project_id"], name: "index_project_auto_devops_on_project_id", unique: true, using: :btree
 
+  create_table "project_custom_attributes", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "project_id", null: false
+    t.string "key", null: false
+    t.string "value", null: false
+  end
+
+  add_index "project_custom_attributes", ["key", "value"], name: "index_project_custom_attributes_on_key_and_value", using: :btree
+  add_index "project_custom_attributes", ["project_id", "key"], name: "index_project_custom_attributes_on_project_id_and_key", unique: true, using: :btree
+
   create_table "project_features", force: :cascade do |t|
     t.integer "project_id"
     t.integer "merge_requests_access_level"
@@ -1900,6 +1922,7 @@ ActiveRecord::Schema.define(version: 20171106101200) do
   add_foreign_key "gpg_signatures", "gpg_key_subkeys", on_delete: :nullify
   add_foreign_key "gpg_signatures", "gpg_keys", on_delete: :nullify
   add_foreign_key "gpg_signatures", "projects", on_delete: :cascade
+  add_foreign_key "group_custom_attributes", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "issue_assignees", "issues", name: "fk_b7d881734a", on_delete: :cascade
   add_foreign_key "issue_assignees", "users", name: "fk_5e0c8d9154", on_delete: :cascade
   add_foreign_key "issue_metrics", "issues", on_delete: :cascade
@@ -1930,6 +1953,7 @@ ActiveRecord::Schema.define(version: 20171106101200) do
   add_foreign_key "project_authorizations", "projects", on_delete: :cascade
   add_foreign_key "project_authorizations", "users", on_delete: :cascade
   add_foreign_key "project_auto_devops", "projects", on_delete: :cascade
+  add_foreign_key "project_custom_attributes", "projects", on_delete: :cascade
   add_foreign_key "project_features", "projects", name: "fk_18513d9b92", on_delete: :cascade
   add_foreign_key "project_group_links", "projects", name: "fk_daa8cee94c", on_delete: :cascade
   add_foreign_key "project_import_data", "projects", name: "fk_ffb9ee3a10", on_delete: :cascade
diff --git a/doc/api/custom_attributes.md b/doc/api/custom_attributes.md
index 8b26f7093ab..91d1b0e1520 100644
--- a/doc/api/custom_attributes.md
+++ b/doc/api/custom_attributes.md
@@ -2,17 +2,22 @@
 
 Every API call to custom attributes must be authenticated as administrator.
 
+Custom attributes are currently available on users, groups, and projects,
+which will be referred to as "resource" in this documentation.
+
 ## List custom attributes
 
-Get all custom attributes on a user.
+Get all custom attributes on a resource.
 
 ```
 GET /users/:id/custom_attributes
+GET /groups/:id/custom_attributes
+GET /projects/:id/custom_attributes
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 
 ```bash
 curl --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" https://gitlab.example.com/api/v4/users/42/custom_attributes
@@ -35,15 +40,17 @@ Example response:
 
 ## Single custom attribute
 
-Get a single custom attribute on a user.
+Get a single custom attribute on a resource.
 
 ```
 GET /users/:id/custom_attributes/:key
+GET /groups/:id/custom_attributes/:key
+GET /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 
 ```bash
@@ -61,16 +68,18 @@ Example response:
 
 ## Set custom attribute
 
-Set a custom attribute on a user. The attribute will be updated if it already exists,
+Set a custom attribute on a resource. The attribute will be updated if it already exists,
 or newly created otherwise.
 
 ```
 PUT /users/:id/custom_attributes/:key
+PUT /groups/:id/custom_attributes/:key
+PUT /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 | `value` | string | yes | The value of the custom attribute |
 
@@ -89,15 +98,17 @@ Example response:
 
 ## Delete custom attribute
 
-Delete a custom attribute on a user.
+Delete a custom attribute on a resource.
 
 ```
 DELETE /users/:id/custom_attributes/:key
+DELETE /groups/:id/custom_attributes/:key
+DELETE /projects/:id/custom_attributes/:key
 ```
 
 | Attribute | Type | Required | Description |
 | --------- | ---- | -------- | ----------- |
-| `id` | integer | yes | The ID of a user |
+| `id` | integer | yes | The ID of a resource |
 | `key` | string | yes | The key of the custom attribute |
 
 ```bash
diff --git a/doc/api/groups.md b/doc/api/groups.md
index 99d200c9c93..16db9c2f259 100644
--- a/doc/api/groups.md
+++ b/doc/api/groups.md
@@ -74,6 +74,12 @@ GET /groups?statistics=true
 
 You can search for groups by name or path, see below.
 
+You can filter by [custom attributes](custom_attributes.md) with:
+
+```
+GET /groups?custom_attributes[key]=value&custom_attributes[other_key]=other_value
+```
+
 ## List a group's projects
 
 Get a list of projects in this group. When accessed without authentication, only
diff --git a/doc/api/merge_requests.md b/doc/api/merge_requests.md
index 50a971102fb..6de460f2778 100644
--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -15,6 +15,11 @@ given state (`opened`, `closed`, or `merged`) or all of them (`all`).
 The pagination parameters `page` and `per_page` can be used to
 restrict the list of merge requests.
 
+**Note**: the `changes_count` value in the response is a string, not an
+integer. This is because when an MR has too many changes to display and store,
+it will be capped at 1,000. In that case, the API will return the string
+`"1000+"` for the changes count.
+
 ```
 GET /merge_requests
 GET /merge_requests?state=opened
@@ -92,6 +97,7 @@ Parameters:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 1,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1",
@@ -130,6 +136,11 @@ will be the same. In the case of a merge request from a fork,
 `target_project_id` and `project_id` will be the same and
 `source_project_id` will be the fork project's ID.
 
+**Note**: the `changes_count` value in the response is a string, not an
+integer. This is because when an MR has too many changes to display and store,
+it will be capped at 1,000. In that case, the API will return the string
+`"1000+"` for the changes count.
+
 Parameters:
 
 | Attribute           | Type           | Required | Description                                                                                                                    |
@@ -198,6 +209,7 @@ Parameters:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 1,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1",
@@ -274,6 +286,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": "9999999999999999999999999999999999999999",
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -386,6 +399,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -480,6 +494,7 @@ POST /projects/:id/merge_requests
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 0,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -565,6 +580,7 @@ Must include at least one non-required attribute from above.
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -670,6 +686,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": "9999999999999999999999999999999999999999",
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -747,6 +764,7 @@ Parameters:
   "sha": "8888888888888888888888888888888888888888",
   "merge_commit_sha": null,
   "user_notes_count": 1,
+  "changes_count": "1",
   "should_remove_source_branch": true,
   "force_remove_source_branch": false,
   "web_url": "http://example.com/example/example/merge_requests/1",
@@ -822,7 +840,8 @@ Example response when the GitLab issue tracker is used:
       "created_at" : "2016-01-04T15:31:51.081Z",
       "iid" : 6,
       "labels" : [],
-      "user_notes_count": 1
+      "user_notes_count": 1,
+      "changes_count": "1"
    },
 ]
 ```
@@ -1077,6 +1096,7 @@ Example response:
     "sha": "8888888888888888888888888888888888888888",
     "merge_commit_sha": null,
     "user_notes_count": 7,
+    "changes_count": "1",
     "should_remove_source_branch": true,
     "force_remove_source_branch": false,
     "web_url": "http://example.com/example/example/merge_requests/1"
diff --git a/doc/api/projects.md b/doc/api/projects.md
index 07331d05231..5a403f7593a 100644
--- a/doc/api/projects.md
+++ b/doc/api/projects.md
@@ -192,6 +192,12 @@ GET /projects
 ]
 ```
 
+You can filter by [custom attributes](custom_attributes.md) with:
+
+```
+GET /projects?custom_attributes[key]=value&custom_attributes[other_key]=other_value
+```
+
 ## List user projects
 
 Get a list of visible projects for the given user. When accessed without
diff --git a/doc/user/project/img/label_priority_sort_order.png b/doc/user/project/img/label_priority_sort_order.png
new file mode 100644
index 00000000000..21c7a76a322
--- /dev/null
+++ b/doc/user/project/img/label_priority_sort_order.png
diff --git a/doc/user/project/img/labels_filter_by_priority.png b/doc/user/project/img/labels_filter_by_priority.png
deleted file mode 100644
index 419e555e709..00000000000
--- a/doc/user/project/img/labels_filter_by_priority.png
+++ /dev/null
diff --git a/doc/user/project/img/priority_sort_order.png b/doc/user/project/img/priority_sort_order.png
new file mode 100644
index 00000000000..c558ec23b0e
--- /dev/null
+++ b/doc/user/project/img/priority_sort_order.png
diff --git a/doc/user/project/labels.md b/doc/user/project/labels.md
index 21a2e1213ec..d7eb4bca89c 100644
--- a/doc/user/project/labels.md
+++ b/doc/user/project/labels.md
@@ -77,15 +77,32 @@ having their priority set to null.
 
 ![Prioritize labels](img/labels_prioritize.png)
 
-Now that you have labels prioritized, you can use the 'Priority' and 'Label
-priority' filters in the issues or merge requests tracker.
+Now that you have labels prioritized, you can use the 'Label priority' and 'Priority' 
+sort orders in the issues or merge requests tracker.
 
-The 'Label priority' filter puts issues with the highest priority label on top.
+In the following, everything applies to both issues and merge requests, but we'll
+refer to just issues for brevity.
 
-The 'Priority' filter sorts issues by their soonest milestone due date, then by
-label priority.
+The 'Label priority' sort order positions issues with higher priority labels
+toward the top, and issues with lower priority labels toward the bottom. A non-prioritized
+label is considered to have the lowest priority. For a given issue, we _only_ consider the
+highest priority label assigned to it in the comparison. ([We are discussing](https://gitlab.com/gitlab-org/gitlab-ce/issues/18554) 
+including all the labels in a given issue for this comparison.) Given two issues
+are equal according to this sort comparison, their relative order is equal, and 
+therefore it's not guaranteed that one will be always above the other.
+
+![Label priority sort order](img/label_priority_sort_order.png)
+
+The 'Priority' sort order comparison first considers an issue's milestone's due date,
+(if the issue is assigned a milestone and the milestone's due date exists), and then 
+secondarily considers the label priority comparison above. Sooner due dates results
+a higher sort order. If an issue doesn't have a milestone due date, it is equivalent to
+being assigned to a milestone that has a due date in the infinite future. Given two issues
+are equal according to this two-stage sort comparison, their relative order is equal, and 
+therefore it's not guaranteed that one will be always above the other.
+
+![Priority sort order](img/priority_sort_order.png)
 
-![Filter labels by priority](img/labels_filter_by_priority.png)
 
 ## Subscribe to labels
 
diff --git a/lib/api/branches.rb b/lib/api/branches.rb
index 19152c9f395..cdef1b546a9 100644
--- a/lib/api/branches.rb
+++ b/lib/api/branches.rb
@@ -29,12 +29,11 @@ module API
         use :pagination
       end
       get ':id/repository/branches' do
-        branches = ::Kaminari.paginate_array(user_project.repository.branches.sort_by(&:name))
+        repository = user_project.repository
+        branches = ::Kaminari.paginate_array(repository.branches.sort_by(&:name))
+        merged_branch_names = repository.merged_branch_names(branches.map(&:name))
 
-        # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37442
-        Gitlab::GitalyClient.allow_n_plus_1_calls do
-          present paginate(branches), with: Entities::Branch, project: user_project
-        end
+        present paginate(branches), with: Entities::Branch, project: user_project, merged_branch_names: merged_branch_names
       end
 
       resource ':id/repository/branches/:branch', requirements: BRANCH_ENDPOINT_REQUIREMENTS do
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 398a7906dcb..a382db92e8d 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -242,10 +242,7 @@ module API
       end
 
       expose :merged do |repo_branch, options|
-        # n+1: https://gitlab.com/gitlab-org/gitlab-ce/issues/37442
-        Gitlab::GitalyClient.allow_n_plus_1_calls do
-          options[:project].repository.merged_to_root_ref?(repo_branch.name)
-        end
+        options[:project].repository.merged_to_root_ref?(repo_branch, options[:merged_branch_names])
       end
 
       expose :protected do |repo_branch, options|
@@ -478,6 +475,10 @@ module API
       expose :subscribed do |merge_request, options|
         merge_request.subscribed?(options[:current_user], options[:project])
       end
+
+      expose :changes_count do |merge_request, _options|
+        merge_request.merge_request_diff.real_size
+      end
     end
 
     class MergeRequestChanges < MergeRequest
diff --git a/lib/api/groups.rb b/lib/api/groups.rb
index e817dcbbc4b..340a7cecf09 100644
--- a/lib/api/groups.rb
+++ b/lib/api/groups.rb
@@ -37,6 +37,8 @@ module API
     end
 
     resource :groups do
+      include CustomAttributesEndpoints
+
       desc 'Get a groups list' do
         success Entities::Group
       end
@@ -51,7 +53,12 @@ module API
         use :pagination
       end
       get do
-        find_params = { all_available: params[:all_available], owned: params[:owned] }
+        find_params = {
+          all_available: params[:all_available],
+          owned: params[:owned],
+          custom_attributes: params[:custom_attributes]
+        }
+
         groups = GroupsFinder.new(current_user, find_params).execute
         groups = groups.search(params[:search]) if params[:search].present?
         groups = groups.where.not(id: params[:skip_groups]) if params[:skip_groups].present?
diff --git a/lib/api/helpers.rb b/lib/api/helpers.rb
index 1c12166e434..5f9b94cc89c 100644
--- a/lib/api/helpers.rb
+++ b/lib/api/helpers.rb
@@ -328,6 +328,7 @@ module API
       finder_params[:archived] = params[:archived]
       finder_params[:search] = params[:search] if params[:search]
       finder_params[:user] = params.delete(:user) if params[:user]
+      finder_params[:custom_attributes] = params[:custom_attributes] if params[:custom_attributes]
       finder_params
     end
 
diff --git a/lib/api/projects.rb b/lib/api/projects.rb
index aab7a6c3f93..4cd7e714aa2 100644
--- a/lib/api/projects.rb
+++ b/lib/api/projects.rb
@@ -119,6 +119,8 @@ module API
     end
 
     resource :projects do
+      include CustomAttributesEndpoints
+
       desc 'Get a list of visible projects for authenticated user' do
         success Entities::BasicProjectDetails
       end
diff --git a/lib/api/v3/branches.rb b/lib/api/v3/branches.rb
index 69cd12de72c..b201bf77667 100644
--- a/lib/api/v3/branches.rb
+++ b/lib/api/v3/branches.rb
@@ -14,9 +14,11 @@ module API
           success ::API::Entities::Branch
         end
         get ":id/repository/branches" do
-          branches = user_project.repository.branches.sort_by(&:name)
+          repository = user_project.repository
+          branches = repository.branches.sort_by(&:name)
+          merged_branch_names = repository.merged_branch_names(branches.map(&:name))
 
-          present branches, with: ::API::Entities::Branch, project: user_project
+          present branches, with: ::API::Entities::Branch, project: user_project, merged_branch_names: merged_branch_names
         end
 
         desc 'Delete a branch'
diff --git a/lib/banzai/filter/milestone_reference_filter.rb b/lib/banzai/filter/milestone_reference_filter.rb
index 4fc5f211e84..bb5da310e09 100644
--- a/lib/banzai/filter/milestone_reference_filter.rb
+++ b/lib/banzai/filter/milestone_reference_filter.rb
@@ -56,7 +56,7 @@ module Banzai
       end
 
       def find_milestone_with_finder(project, params)
-        finder_params = { project_ids: [project.id], order: nil }
+        finder_params = { project_ids: [project.id], order: nil, state: 'all' }
 
         # We don't support IID lookups for group milestones, because IIDs can
         # clash between group and project milestones.
diff --git a/lib/gitlab/import_export/import_export.yml b/lib/gitlab/import_export/import_export.yml
index 06b1035fec6..a2b735957a3 100644
--- a/lib/gitlab/import_export/import_export.yml
+++ b/lib/gitlab/import_export/import_export.yml
@@ -64,6 +64,7 @@ project_tree:
   - protected_tags:
     - :create_access_levels
   - :project_feature
+  - :custom_attributes
 
 # Only include the following attributes for the models specified.
 included_attributes:
diff --git a/lib/gitlab/import_export/relation_factory.rb b/lib/gitlab/import_export/relation_factory.rb
index 679be1b21fa..04d2fe94c2f 100644
--- a/lib/gitlab/import_export/relation_factory.rb
+++ b/lib/gitlab/import_export/relation_factory.rb
@@ -17,7 +17,8 @@ module Gitlab
                     labels: :project_labels,
                     priorities: :label_priorities,
                     auto_devops: :project_auto_devops,
-                    label: :project_label }.freeze
+                    label: :project_label,
+                    custom_attributes: 'ProjectCustomAttribute' }.freeze
 
       USER_REFERENCES = %w[author_id assignee_id updated_by_id user_id created_by_id last_edited_by_id merge_user_id resolved_by_id].freeze
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 08f6212d997..32afb7b06e4 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -399,7 +399,7 @@ msgstr ""
 msgid "Cluster"
 msgstr ""
 
-msgid "ClusterIntegration|A %{link_to_container_project} must have been created under this account"
+msgid "ClusterIntegration|This account must have permissions to create a cluster in the %{link_to_container_project} specified below"
 msgstr ""
 
 msgid "ClusterIntegration|Cluster details"
@@ -480,7 +480,7 @@ msgstr ""
 msgid "ClusterIntegration|Remove integration"
 msgstr ""
 
-msgid "ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your project."
+msgid "ClusterIntegration|Removing cluster integration will remove the cluster configuration you have added to this project. It will not delete your cluster on Google Container Engine."
 msgstr ""
 
 msgid "ClusterIntegration|See and edit the details for your cluster"
diff --git a/spec/controllers/projects/clusters_controller_spec.rb b/spec/controllers/projects/clusters_controller_spec.rb
index de4cf40b492..ca2bcb2b5ae 100644
--- a/spec/controllers/projects/clusters_controller_spec.rb
+++ b/spec/controllers/projects/clusters_controller_spec.rb
@@ -72,7 +72,7 @@ describe Projects::ClustersController do
           go
 
           expect(assigns(:authorize_url)).to include(key)
-          expect(session[session_key_for_redirect_uri]).to eq(project_clusters_url(project))
+          expect(session[session_key_for_redirect_uri]).to eq(providers_gcp_new_project_clusters_url(project))
         end
       end
 
@@ -113,7 +113,7 @@ describe Projects::ClustersController do
     end
   end
 
-  describe 'GET new' do
+  describe 'GET new_gcp' do
     let(:project) { create(:project) }
 
     describe 'functionality' do
@@ -161,7 +161,7 @@ describe Projects::ClustersController do
     end
 
     def go
-      get :new, namespace_id: project.namespace, project_id: project
+      get :new_gcp, namespace_id: project.namespace, project_id: project
     end
   end
 
diff --git a/spec/controllers/projects_controller_spec.rb b/spec/controllers/projects_controller_spec.rb
index b1d7157e447..e7ab714c550 100644
--- a/spec/controllers/projects_controller_spec.rb
+++ b/spec/controllers/projects_controller_spec.rb
@@ -503,13 +503,14 @@ describe ProjectsController do
   describe "GET refs" do
     let(:public_project) { create(:project, :public, :repository) }
 
-    it "gets a list of branches and tags" do
-      get :refs, namespace_id: public_project.namespace, id: public_project
+    it 'gets a list of branches and tags' do
+      get :refs, namespace_id: public_project.namespace, id: public_project, sort: 'updated_desc'
 
       parsed_body = JSON.parse(response.body)
-      expect(parsed_body["Branches"]).to include("master")
-      expect(parsed_body["Tags"]).to include("v1.0.0")
-      expect(parsed_body["Commits"]).to be_nil
+      expect(parsed_body['Branches']).to include('master')
+      expect(parsed_body['Tags'].first).to eq('v1.1.0')
+      expect(parsed_body['Tags'].last).to eq('v1.0.0')
+      expect(parsed_body['Commits']).to be_nil
     end
 
     it "gets a list of branches, tags and commits" do
diff --git a/spec/factories/group_custom_attributes.rb b/spec/factories/group_custom_attributes.rb
new file mode 100644
index 00000000000..7ff5f376e8b
--- /dev/null
+++ b/spec/factories/group_custom_attributes.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :group_custom_attribute do
+    group
+    sequence(:key) { |n| "key#{n}" }
+    sequence(:value) { |n| "value#{n}" }
+  end
+end
diff --git a/spec/factories/project_custom_attributes.rb b/spec/factories/project_custom_attributes.rb
new file mode 100644
index 00000000000..5eedeb86304
--- /dev/null
+++ b/spec/factories/project_custom_attributes.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :project_custom_attribute do
+    project
+    sequence(:key) { |n| "key#{n}" }
+    sequence(:value) { |n| "value#{n}" }
+  end
+end
diff --git a/spec/features/projects/clusters_spec.rb b/spec/features/projects/clusters_spec.rb
index 27c1f5062f5..368aad860e7 100644
--- a/spec/features/projects/clusters_spec.rb
+++ b/spec/features/projects/clusters_spec.rb
@@ -22,6 +22,8 @@ feature 'Clusters', :js do
     context 'when user does not have a cluster and visits cluster index page' do
       before do
         visit project_clusters_path(project)
+
+        click_link 'Create on GKE'
       end
 
       it 'user sees a new page' do
@@ -98,7 +100,7 @@ feature 'Clusters', :js do
 
         it 'user sees creation form with the succeccful message' do
           expect(page).to have_content('Cluster integration was successfully removed.')
-          expect(page).to have_button('Create cluster')
+          expect(page).to have_link('Create on GKE')
         end
       end
     end
@@ -107,6 +109,8 @@ feature 'Clusters', :js do
   context 'when user has not signed in Google' do
     before do
       visit project_clusters_path(project)
+
+      click_link 'Create on GKE'
     end
 
     it 'user sees a login page' do
diff --git a/spec/fixtures/api/schemas/public_api/v4/merge_requests.json b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
index 5828be5255b..034509091a5 100644
--- a/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
+++ b/spec/fixtures/api/schemas/public_api/v4/merge_requests.json
@@ -70,6 +70,7 @@
       "sha": { "type": "string" },
       "merge_commit_sha": { "type": ["string", "null"] },
       "user_notes_count": { "type": "integer" },
+      "changes_count": { "type": "string" },
       "should_remove_source_branch": { "type": ["boolean", "null"] },
       "force_remove_source_branch": { "type": ["boolean", "null"] },
       "discussion_locked": { "type": ["boolean", "null"] },
diff --git a/spec/javascripts/monitoring/graph/legend_spec.js b/spec/javascripts/monitoring/graph/legend_spec.js
index 2571b7ef869..145c8db28d5 100644
--- a/spec/javascripts/monitoring/graph/legend_spec.js
+++ b/spec/javascripts/monitoring/graph/legend_spec.js
@@ -28,7 +28,7 @@ const defaultValuesComponent = {
   currentDataIndex: 0,
 };
 
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0],
+const timeSeries = createTimeSeries(convertedMetrics[0].queries,
   defaultValuesComponent.graphWidth, defaultValuesComponent.graphHeight,
   defaultValuesComponent.graphHeightOffset);
 
diff --git a/spec/javascripts/monitoring/graph_path_spec.js b/spec/javascripts/monitoring/graph_path_spec.js
index 81825a3ae87..8ece913ada8 100644
--- a/spec/javascripts/monitoring/graph_path_spec.js
+++ b/spec/javascripts/monitoring/graph_path_spec.js
@@ -13,7 +13,7 @@ const createComponent = (propsData) => {
 
 const convertedMetrics = convertDatesMultipleSeries(singleRowMetricsMultipleSeries);
 
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0], 428, 272, 120);
+const timeSeries = createTimeSeries(convertedMetrics[0].queries, 428, 272, 120);
 const firstTimeSeries = timeSeries[0];
 
 describe('Monitoring Paths', () => {
diff --git a/spec/javascripts/monitoring/utils/multiple_time_series_spec.js b/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
index 7e44a9ade9e..99584c75287 100644
--- a/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
+++ b/spec/javascripts/monitoring/utils/multiple_time_series_spec.js
@@ -2,7 +2,7 @@ import createTimeSeries from '~/monitoring/utils/multiple_time_series';
 import { convertDatesMultipleSeries, singleRowMetricsMultipleSeries } from '../mock_data';
 
 const convertedMetrics = convertDatesMultipleSeries(singleRowMetricsMultipleSeries);
-const timeSeries = createTimeSeries(convertedMetrics[0].queries[0], 428, 272, 120);
+const timeSeries = createTimeSeries(convertedMetrics[0].queries, 428, 272, 120);
 const firstTimeSeries = timeSeries[0];
 
 describe('Multiple time series', () => {
diff --git a/spec/lib/banzai/filter/milestone_reference_filter_spec.rb b/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
index 84578668133..6a9087d2e59 100644
--- a/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
+++ b/spec/lib/banzai/filter/milestone_reference_filter_spec.rb
@@ -294,8 +294,7 @@ describe Banzai::Filter::MilestoneReferenceFilter do
     end
   end
 
-  context 'project milestones' do
-    let(:milestone) { create(:milestone, project: project) }
+  shared_context 'project milestones' do
     let(:reference) { milestone.to_reference(format: :iid) }
 
     include_examples 'reference parsing'
@@ -309,8 +308,7 @@ describe Banzai::Filter::MilestoneReferenceFilter do
     it_behaves_like 'cross project shorthand reference'
   end
 
-  context 'group milestones' do
-    let(:milestone) { create(:milestone, group: group) }
+  shared_context 'group milestones' do
     let(:reference) { milestone.to_reference(format: :name) }
 
     include_examples 'reference parsing'
@@ -354,4 +352,32 @@ describe Banzai::Filter::MilestoneReferenceFilter do
       expect(result.css('a').first.attr('href')).to eq(urls.milestone_url(milestone))
     end
   end
+
+  context 'when milestone is open' do
+    context 'project milestones' do
+      let(:milestone) { create(:milestone, project: project) }
+
+      include_context 'project milestones'
+    end
+
+    context 'group milestones' do
+      let(:milestone) { create(:milestone, group: group) }
+
+      include_context 'group milestones'
+    end
+  end
+
+  context 'when milestone is closed' do
+    context 'project milestones' do
+      let(:milestone) { create(:milestone, :closed, project: project) }
+
+      include_context 'project milestones'
+    end
+
+    context 'group milestones' do
+      let(:milestone) { create(:milestone, :closed, group: group) }
+
+      include_context 'group milestones'
+    end
+  end
 end
diff --git a/spec/lib/gitlab/import_export/all_models.yml b/spec/lib/gitlab/import_export/all_models.yml
index 6eb266a7b94..1bb80173704 100644
--- a/spec/lib/gitlab/import_export/all_models.yml
+++ b/spec/lib/gitlab/import_export/all_models.yml
@@ -290,6 +290,7 @@ project:
 - root_of_fork_network
 - fork_network_member
 - fork_network
+- custom_attributes
 award_emoji:
 - awardable
 - user
diff --git a/spec/lib/gitlab/import_export/project.json b/spec/lib/gitlab/import_export/project.json
index 9a68bbb379c..f7c90093bde 100644
--- a/spec/lib/gitlab/import_export/project.json
+++ b/spec/lib/gitlab/import_export/project.json
@@ -7408,5 +7408,23 @@
     "snippets_access_level": 20,
     "updated_at": "2016-09-23T11:58:28.000Z",
     "wiki_access_level": 20
-  }
+  },
+  "custom_attributes": [
+    {
+      "id": 1,
+      "created_at": "2017-10-19T15:36:23.466Z",
+      "updated_at": "2017-10-19T15:36:23.466Z",
+      "project_id": 5,
+      "key": "foo",
+      "value": "foo"
+    },
+    {
+      "id": 2,
+      "created_at": "2017-10-19T15:37:21.904Z",
+      "updated_at": "2017-10-19T15:37:21.904Z",
+      "project_id": 5,
+      "key": "bar",
+      "value": "bar"
+    }
+  ]
 }
diff --git a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
index 76b01b6a1ec..e4b4cf5ba85 100644
--- a/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_restorer_spec.rb
@@ -133,6 +133,10 @@ describe Gitlab::ImportExport::ProjectTreeRestorer do
         expect(@project.project_feature).not_to be_nil
       end
 
+      it 'has custom attributes' do
+        expect(@project.custom_attributes.count).to eq(2)
+      end
+
       it 'restores the correct service' do
         expect(CustomIssueTrackerService.first).not_to be_nil
       end
diff --git a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
index 8da768ebd07..ee173afbd50 100644
--- a/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
+++ b/spec/lib/gitlab/import_export/project_tree_saver_spec.rb
@@ -168,6 +168,10 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
         expect(project_feature["builds_access_level"]).to eq(ProjectFeature::PRIVATE)
       end
 
+      it 'has custom attributes' do
+        expect(saved_project_json['custom_attributes'].count).to eq(2)
+      end
+
       it 'does not complain about non UTF-8 characters in MR diffs' do
         ActiveRecord::Base.connection.execute("UPDATE merge_request_diffs SET st_diffs = '---\n- :diff: !binary |-\n    LS0tIC9kZXYvbnVsbAorKysgYi9pbWFnZXMvbnVjb3IucGRmCkBAIC0wLDAg\n    KzEsMTY3OSBAQAorJVBERi0xLjUNJeLjz9MNCisxIDAgb2JqDTw8L01ldGFk\n    YXR'")
 
@@ -279,6 +283,9 @@ describe Gitlab::ImportExport::ProjectTreeSaver do
     create(:event, :created, target: milestone, project: project, author: user)
     create(:service, project: project, type: 'CustomIssueTrackerService', category: 'issue_tracker')
 
+    create(:project_custom_attribute, project: project)
+    create(:project_custom_attribute, project: project)
+
     project
   end
 
diff --git a/spec/lib/gitlab/import_export/safe_model_attributes.yml b/spec/lib/gitlab/import_export/safe_model_attributes.yml
index 4b79e9f18c6..4e36af18aa7 100644
--- a/spec/lib/gitlab/import_export/safe_model_attributes.yml
+++ b/spec/lib/gitlab/import_export/safe_model_attributes.yml
@@ -525,4 +525,11 @@ ProjectAutoDevops:
 - updated_at
 IssueAssignee:
 - user_id
-- issue_id
\ No newline at end of file
+- issue_id
+ProjectCustomAttribute:
+- id
+- created_at
+- updated_at
+- project_id
+- key
+- value
diff --git a/spec/models/group_custom_attribute_spec.rb b/spec/models/group_custom_attribute_spec.rb
new file mode 100644
index 00000000000..7ecb2022567
--- /dev/null
+++ b/spec/models/group_custom_attribute_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe GroupCustomAttribute do
+  describe 'assocations' do
+    it { is_expected.to belong_to(:group) }
+  end
+
+  describe 'validations' do
+    subject { build :group_custom_attribute }
+
+    it { is_expected.to validate_presence_of(:group) }
+    it { is_expected.to validate_presence_of(:key) }
+    it { is_expected.to validate_presence_of(:value) }
+    it { is_expected.to validate_uniqueness_of(:key).scoped_to(:group_id) }
+  end
+end
diff --git a/spec/models/group_spec.rb b/spec/models/group_spec.rb
index 0e1a7fdce0b..c8caa11b8b0 100644
--- a/spec/models/group_spec.rb
+++ b/spec/models/group_spec.rb
@@ -17,6 +17,7 @@ describe Group do
     it { is_expected.to have_many(:variables).class_name('Ci::GroupVariable') }
     it { is_expected.to have_many(:uploads).dependent(:destroy) }
     it { is_expected.to have_one(:chat_team) }
+    it { is_expected.to have_many(:custom_attributes).class_name('GroupCustomAttribute') }
 
     describe '#members & #requesters' do
       let(:requester) { create(:user) }
diff --git a/spec/models/project_custom_attribute_spec.rb b/spec/models/project_custom_attribute_spec.rb
new file mode 100644
index 00000000000..669de5506bc
--- /dev/null
+++ b/spec/models/project_custom_attribute_spec.rb
@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+describe ProjectCustomAttribute do
+  describe 'assocations' do
+    it { is_expected.to belong_to(:project) }
+  end
+
+  describe 'validations' do
+    subject { build :project_custom_attribute }
+
+    it { is_expected.to validate_presence_of(:project) }
+    it { is_expected.to validate_presence_of(:key) }
+    it { is_expected.to validate_presence_of(:value) }
+    it { is_expected.to validate_uniqueness_of(:key).scoped_to(:project_id) }
+  end
+end
diff --git a/spec/models/project_services/chat_message/issue_message_spec.rb b/spec/models/project_services/chat_message/issue_message_spec.rb
index d37726dc3f1..f7a35fdc88a 100644
--- a/spec/models/project_services/chat_message/issue_message_spec.rb
+++ b/spec/models/project_services/chat_message/issue_message_spec.rb
@@ -66,6 +66,19 @@ describe ChatMessage::IssueMessage do
         expect(subject.attachments).to be_empty
       end
     end
+
+    context 'reopen' do
+      before do
+        args[:object_attributes][:action] = 'reopen'
+        args[:object_attributes][:state] = 'opened'
+      end
+
+      it 'returns a message regarding reopening of issues' do
+        expect(subject.pretext)
+          .to eq('[<http://somewhere.com|project_name>] Issue <http://url.com|#100 Issue title> opened by Test User (test.user)')
+        expect(subject.attachments).to be_empty
+      end
+    end
   end
 
   context 'with markdown' do
diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index 0e50909988b..6185f55c1dc 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -79,6 +79,7 @@ describe Project do
     it { is_expected.to have_many(:pipeline_schedules) }
     it { is_expected.to have_many(:members_and_requesters) }
     it { is_expected.to have_one(:cluster) }
+    it { is_expected.to have_many(:custom_attributes).class_name('ProjectCustomAttribute') }
 
     context 'after initialized' do
       it "has a project_feature" do
diff --git a/spec/requests/api/groups_spec.rb b/spec/requests/api/groups_spec.rb
index 8ce9fcc80bf..780dbce6488 100644
--- a/spec/requests/api/groups_spec.rb
+++ b/spec/requests/api/groups_spec.rb
@@ -618,4 +618,14 @@ describe API::Groups do
       end
     end
   end
+
+  it_behaves_like 'custom attributes endpoints', 'groups' do
+    let(:attributable) { group1 }
+    let(:other_attributable) { group2 }
+    let(:user) { user1 }
+
+    before do
+      group2.add_owner(user1)
+    end
+  end
 end
diff --git a/spec/requests/api/merge_requests_spec.rb b/spec/requests/api/merge_requests_spec.rb
index e16be3c46e1..a928ba79a4d 100644
--- a/spec/requests/api/merge_requests_spec.rb
+++ b/spec/requests/api/merge_requests_spec.rb
@@ -435,17 +435,7 @@ describe API::MergeRequests do
       expect(json_response['merge_status']).to eq('can_be_merged')
       expect(json_response['should_close_merge_request']).to be_falsy
       expect(json_response['force_close_merge_request']).to be_falsy
-    end
-
-    it "returns merge_request" do
-      get api("/projects/#{project.id}/merge_requests/#{merge_request.iid}", user)
-      expect(response).to have_gitlab_http_status(200)
-      expect(json_response['title']).to eq(merge_request.title)
-      expect(json_response['iid']).to eq(merge_request.iid)
-      expect(json_response['work_in_progress']).to eq(false)
-      expect(json_response['merge_status']).to eq('can_be_merged')
-      expect(json_response['should_close_merge_request']).to be_falsy
-      expect(json_response['force_close_merge_request']).to be_falsy
+      expect(json_response['changes_count']).to eq(merge_request.merge_request_diff.real_size)
     end
 
     it "returns a 404 error if merge_request_iid not found" do
@@ -462,12 +452,32 @@ describe API::MergeRequests do
     context 'Work in Progress' do
       let!(:merge_request_wip) { create(:merge_request, author: user, assignee: user, source_project: project, target_project: project, title: "WIP: Test", created_at: base_time + 1.second) }
 
-      it "returns merge_request" do
+      it "returns merge request" do
         get api("/projects/#{project.id}/merge_requests/#{merge_request_wip.iid}", user)
+
         expect(response).to have_gitlab_http_status(200)
         expect(json_response['work_in_progress']).to eq(true)
       end
     end
+
+    context 'when a merge request has more than the changes limit' do
+      it "returns a string indicating that more changes were made" do
+        stub_const('Commit::DIFF_HARD_LIMIT_FILES', 5)
+
+        merge_request_overflow = create(:merge_request, :simple,
+                                        author: user,
+                                        assignee: user,
+                                        source_project: project,
+                                        source_branch: 'expand-collapse-files',
+                                        target_project: project,
+                                        target_branch: 'master')
+
+        get api("/projects/#{project.id}/merge_requests/#{merge_request_overflow.iid}", user)
+
+        expect(response).to have_gitlab_http_status(200)
+        expect(json_response['changes_count']).to eq('5+')
+      end
+    end
   end
 
   describe 'GET /projects/:id/merge_requests/:merge_request_iid/commits' do
diff --git a/spec/requests/api/projects_spec.rb b/spec/requests/api/projects_spec.rb
index e095ba2af5d..abe367d4e11 100644
--- a/spec/requests/api/projects_spec.rb
+++ b/spec/requests/api/projects_spec.rb
@@ -1856,4 +1856,9 @@ describe API::Projects do
       end
     end
   end
+
+  it_behaves_like 'custom attributes endpoints', 'projects' do
+    let(:attributable) { project }
+    let(:other_attributable) { project2 }
+  end
 end
diff --git a/spec/requests/api/users_spec.rb b/spec/requests/api/users_spec.rb
index 634c8dae0ba..2aeae6f9ec7 100644
--- a/spec/requests/api/users_spec.rb
+++ b/spec/requests/api/users_spec.rb
@@ -1880,7 +1880,8 @@ describe API::Users do
     end
   end
 
-  include_examples 'custom attributes endpoints', 'users' do
+  it_behaves_like 'custom attributes endpoints', 'users' do
     let(:attributable) { user }
+    let(:other_attributable) { admin }
   end
 end
diff --git a/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb b/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
index 6bc39f2f279..4e18804b937 100644
--- a/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
+++ b/spec/support/shared_examples/requests/api/custom_attributes_shared_examples.rb
@@ -3,7 +3,9 @@ shared_examples 'custom attributes endpoints' do |attributable_name|
   let!(:custom_attribute2) { attributable.custom_attributes.create key: 'bar', value: 'bar' }
 
   describe "GET /#{attributable_name} with custom attributes filter" do
-    let!(:other_attributable) { create attributable.class.name.underscore }
+    before do
+      other_attributable
+    end
 
     context 'with an unauthorized user' do
       it 'does not filter by custom attributes' do
@@ -11,6 +13,7 @@ shared_examples 'custom attributes endpoints' do |attributable_name|
 
         expect(response).to have_gitlab_http_status(200)
         expect(json_response.size).to be 2
+        expect(json_response.map { |r| r['id'] }).to contain_exactly attributable.id, other_attributable.id
       end
     end