Merge branch 'ac-post-merge-pipeline' into 'master'

post merge pipeline and environments status

Closes #47799

See merge request gitlab-org/gitlab-ce!22292

22 files changed, 588 insertions, 118 deletions

diff --git a/app/assets/javascripts/vue_merge_request_widget/components/deployment.vue b/app/assets/javascripts/vue_merge_request_widget/components/deployment.vue
index 6c87287a4c4..5e7a35e9396 100644
--- a/app/assets/javascripts/vue_merge_request_widget/components/deployment.vue
+++ b/app/assets/javascripts/vue_merge_request_widget/components/deployment.vue
@@ -2,6 +2,7 @@
 import Icon from '~/vue_shared/components/icon.vue';
 import TooltipOnTruncate from '~/vue_shared/components/tooltip_on_truncate.vue';
 import FilteredSearchDropdown from '~/vue_shared/components/filtered_search_dropdown.vue';
+import { __ } from '~/locale';
 import timeagoMixin from '../../vue_shared/mixins/timeago';
 import tooltip from '../../vue_shared/directives/tooltip';
 import LoadingButton from '../../vue_shared/components/loading_button.vue';
@@ -31,6 +32,11 @@ export default {
       required: true,
     },
   },
+  deployedTextMap: {
+    running: __('Deploying to'),
+    success: __('Deployed to'),
+    failed: __('Failed to deploy to'),
+  },
   data() {
     const features = window.gon.features || {};
     return {
@@ -54,10 +60,13 @@ export default {
     hasMetrics() {
       return !!this.deployment.metrics_url;
     },
+    deployedText() {
+      return this.$options.deployedTextMap[this.deployment.status];
+    },
   },
   methods: {
     stopEnvironment() {
-      const msg = 'Are you sure you want to stop this environment?';
+      const msg = __('Are you sure you want to stop this environment?');
       const isConfirmed = confirm(msg); // eslint-disable-line
 
       if (isConfirmed) {
@@ -87,10 +96,10 @@ export default {
     <div class="ci-widget media">
       <div class="media-body">
         <div class="deploy-body">
-          <div class="deployment-info">
+          <div class="js-deployment-info deployment-info">
             <template v-if="hasDeploymentMeta">
               <span>
-                Deployed to
+                {{ deployedText }}
               </span>
               <tooltip-on-truncate
                 :title="deployment.name"
diff --git a/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.vue b/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.vue
index 5d9f7cebcf2..a5c69d2bc7a 100644
--- a/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.vue
+++ b/app/assets/javascripts/vue_merge_request_widget/mr_widget_options.vue
@@ -1,4 +1,6 @@
 <script>
+import _ from 'underscore';
+import { __ } from '~/locale';
 import Project from '~/pages/projects/project';
 import SmartInterval from '~/smart_interval';
 import createFlash from '../flash';
@@ -80,6 +82,7 @@ export default {
     const service = this.createService(store);
     return {
       mr: store,
+      state: store.state,
       service,
     };
   },
@@ -103,6 +106,17 @@ export default {
         (!this.mr.isNothingToMergeState && !this.mr.isMergedState)
       );
     },
+    shouldRenderMergedPipeline() {
+      return this.mr.state === 'merged' && !_.isEmpty(this.mr.mergePipeline);
+    },
+  },
+  watch: {
+    state(newVal, oldVal) {
+      if (newVal !== oldVal && this.shouldRenderMergedPipeline) {
+        // init polling
+        this.initPostMergeDeploymentsPolling();
+      }
+    }
   },
   created() {
     this.initPolling();
@@ -112,11 +126,19 @@ export default {
   mounted() {
     this.setFaviconHelper();
     this.initDeploymentsPolling();
+
+    if (this.shouldRenderMergedPipeline) {
+      this.initPostMergeDeploymentsPolling();
+    }
   },
   beforeDestroy() {
     eventHub.$off('mr.discussion.updated', this.checkStatus);
     this.pollingInterval.destroy();
     this.deploymentsInterval.destroy();
+
+    if (this.postMergeDeploymentsInterval) {
+      this.postMergeDeploymentsInterval.destroy();
+    }
   },
   methods: {
     createService(store) {
@@ -146,7 +168,13 @@ export default {
             cb.call(null, data);
           }
         })
-        .catch(() => createFlash('Something went wrong. Please try again.'));
+        .catch(() => createFlash(__('Something went wrong. Please try again.')));
+    },
+    setFaviconHelper() {
+      if (this.mr.ciStatusFaviconPath) {
+        return setFaviconOverlay(this.mr.ciStatusFaviconPath);
+      }
+      return Promise.resolve();
     },
     initPolling() {
       this.pollingInterval = new SmartInterval({
@@ -158,8 +186,14 @@ export default {
       });
     },
     initDeploymentsPolling() {
-      this.deploymentsInterval = new SmartInterval({
-        callback: this.fetchDeployments,
+      this.deploymentsInterval = this.deploymentsPoll(this.fetchPreMergeDeployments);
+    },
+    initPostMergeDeploymentsPolling() {
+      this.postMergeDeploymentsInterval = this.deploymentsPoll(this.fetchPostMergeDeployments);
+    },
+    deploymentsPoll(callback) {
+      return new SmartInterval({
+        callback,
         startingInterval: 30000,
         maxInterval: 120000,
         hiddenInterval: 240000,
@@ -167,26 +201,29 @@ export default {
         immediateExecution: true,
       });
     },
-    setFaviconHelper() {
-      if (this.mr.ciStatusFaviconPath) {
-        return setFaviconOverlay(this.mr.ciStatusFaviconPath);
-      }
-      return Promise.resolve();
+    fetchDeployments(target) {
+      return this.service.fetchDeployments(target);
     },
-    fetchDeployments() {
-      return this.service
-        .fetchDeployments()
-        .then(res => res.data)
-        .then(data => {
+    fetchPreMergeDeployments() {
+      return this.fetchDeployments()
+        .then(({ data }) => {
           if (data.length) {
             this.mr.deployments = data;
           }
         })
-        .catch(() => {
-          createFlash(
-            'Something went wrong while fetching the environments for this merge request. Please try again.',
-          );
-        });
+        .catch(() => this.throwDeploymentsError());
+    },
+    fetchPostMergeDeployments(){
+      return this.fetchDeployments('merge_commit')
+        .then(({ data }) => {
+          if (data.length) {
+            this.mr.postMergeDeployments = data;
+          }
+        })
+      .catch(() => this.throwDeploymentsError());
+    },
+    throwDeploymentsError() {
+      createFlash(__('Something went wrong while fetching the environments for this merge request. Please try again.'));
     },
     fetchActionsContent() {
       this.service
@@ -199,7 +236,7 @@ export default {
             Project.initRefSwitcher();
           }
         })
-        .catch(() => createFlash('Something went wrong. Please try again.'));
+        .catch(() => createFlash(__('Something went wrong. Please try again.')));
     },
     handleNotification(data) {
       if (data.ci_status === this.mr.ciStatus) return;
@@ -267,7 +304,8 @@ export default {
     />
     <deployment
       v-for="deployment in mr.deployments"
-      :key="deployment.id"
+      :key="`pre-merge-deploy-${deployment.id}`"
+      class="js-pre-merge-deploy"
       :deployment="deployment"
     />
     <div class="mr-section-container">
@@ -308,5 +346,22 @@ export default {
         <mr-widget-merge-help />
       </div>
     </div>
+
+    <template v-if="shouldRenderMergedPipeline">
+      <mr-widget-pipeline
+        class="js-post-merge-pipeline prepend-top-default"
+        :pipeline="mr.mergePipeline"
+        :ci-status="mr.ciStatus"
+        :has-ci="mr.hasCI"
+        :source-branch="mr.targetBranch"
+        :source-branch-link="mr.targetBranch"
+      />
+      <deployment
+        v-for="postMergeDeployment in mr.postMergeDeployments"
+        :key="`post-merge-deploy-${postMergeDeployment.id}`"
+        :deployment="postMergeDeployment"
+        class="js-post-deployment"
+      />
+    </template>
   </div>
 </template>
diff --git a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
index fecbfec2214..bf5b85b2ae6 100644
--- a/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
+++ b/app/assets/javascripts/vue_merge_request_widget/services/mr_widget_service.js
@@ -21,8 +21,12 @@ export default class MRWidgetService {
     return axios.delete(this.endpoints.sourceBranchPath);
   }
 
-  fetchDeployments() {
-    return axios.get(this.endpoints.ciEnvironmentsStatusPath);
+  fetchDeployments(targetParam) {
+    return axios.get(this.endpoints.ciEnvironmentsStatusPath, {
+      params: {
+        environment_target: targetParam
+      }
+    });
   }
 
   poll() {
diff --git a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
index e6655914700..a0c008e7314 100644
--- a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
@@ -32,7 +32,9 @@ export default class MergeRequestStore {
     this.commitsCount = data.commits_count;
     this.divergedCommitsCount = data.diverged_commits_count;
     this.pipeline = data.pipeline || {};
+    this.mergePipeline = data.merge_pipeline || {};
     this.deployments = this.deployments || data.deployments || [];
+    this.postMergeDeployments = this.postMergeDeployments || [];
     this.initRebase(data);
 
     if (data.issues_links) {
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index 757b03d0b0e..614722fd60d 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -201,9 +201,11 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
   end
 
   def ci_environments_status
-    environments = @merge_request.environments_for(current_user).map do |environment|
-      EnvironmentStatus.new(environment, @merge_request)
-    end
+    environments = if ci_environments_status_on_merge_result?
+                     EnvironmentStatus.after_merge_request(@merge_request, current_user)
+                   else
+                     EnvironmentStatus.for_merge_request(@merge_request, current_user)
+                   end
 
     render json: EnvironmentStatusSerializer.new(current_user: current_user).represent(environments)
   end
@@ -241,6 +243,10 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
 
   private
 
+  def ci_environments_status_on_merge_result?
+    params[:environment_target] == 'merge_commit'
+  end
+
   def target_branch_missing?
     @merge_request.has_no_commits? && !@merge_request.target_branch_exists?
   end
diff --git a/app/models/deployment.rb b/app/models/deployment.rb
index 62dc0f2cbeb..ee5b96e7454 100644
--- a/app/models/deployment.rb
+++ b/app/models/deployment.rb
@@ -127,6 +127,10 @@ class Deployment < ActiveRecord::Base
     metrics&.merge(deployment_time: created_at.to_i) || {}
   end
 
+  def status
+    'success'
+  end
+
   private
 
   def prometheus_adapter
diff --git a/app/models/environment_status.rb b/app/models/environment_status.rb
index 5ff3acc0e58..a84871f7253 100644
--- a/app/models/environment_status.rb
+++ b/app/models/environment_status.rb
@@ -3,21 +3,33 @@
 class EnvironmentStatus
   include Gitlab::Utils::StrongMemoize
 
-  attr_reader :environment, :merge_request
+  attr_reader :environment, :merge_request, :sha
 
   delegate :id, to: :environment
   delegate :name, to: :environment
   delegate :project, to: :environment
   delegate :deployed_at, to: :deployment, allow_nil: true
+  delegate :status, to: :deployment
 
-  def initialize(environment, merge_request)
+  def self.for_merge_request(mr, user)
+    build_environments_status(mr, user, mr.head_pipeline)
+  end
+
+  def self.after_merge_request(mr, user)
+    return [] unless mr.merged?
+
+    build_environments_status(mr, user, mr.merge_pipeline)
+  end
+
+  def initialize(environment, merge_request, sha)
     @environment = environment
     @merge_request = merge_request
+    @sha = sha
   end
 
   def deployment
     strong_memoize(:deployment) do
-      environment.first_deployment_for(merge_request.diff_head_sha)
+      environment.first_deployment_for(sha)
     end
   end
 
@@ -26,10 +38,9 @@ class EnvironmentStatus
   end
 
   def changes
-    sha = merge_request.diff_head_sha
     return [] if project.route_map_for(sha).nil?
 
-    changed_files.map { |file| build_change(file, sha) }.compact
+    changed_files.map { |file| build_change(file) }.compact
   end
 
   def changed_files
@@ -41,7 +52,7 @@ class EnvironmentStatus
 
   PAGE_EXTENSIONS = /\A\.(s?html?|php|asp|cgi|pl)\z/i.freeze
 
-  def build_change(file, sha)
+  def build_change(file)
     public_path = project.public_path_for_source_path(file.new_path, sha)
     return if public_path.nil?
 
@@ -53,4 +64,22 @@ class EnvironmentStatus
       external_url: environment.external_url_for(file.new_path, sha)
     }
   end
+
+  def self.build_environments_status(mr, user, pipeline)
+    return [] unless pipeline.present?
+
+    find_environments(user, pipeline).map do |environment|
+      EnvironmentStatus.new(environment, mr, pipeline.sha)
+    end
+  end
+  private_class_method :build_environments_status
+
+  def self.find_environments(user, pipeline)
+    env_ids = Deployment.where(deployable: pipeline.builds).select(:environment_id)
+
+    Environment.available.where(id: env_ids).select do |environment|
+      Ability.allowed?(user, :read_environment, environment)
+    end
+  end
+  private_class_method :find_environments
 end
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 6559f94a696..7eef08aa6a3 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -204,6 +204,12 @@ class MergeRequest < ActiveRecord::Base
     head_pipeline&.sha == diff_head_sha ? head_pipeline : nil
   end
 
+  def merge_pipeline
+    return unless merged?
+
+    target_project.pipeline_for(target_branch, merge_commit_sha)
+  end
+
   # Pattern used to extract `!123` merge request references from text
   #
   # This pattern supports cross-project references.
diff --git a/app/serializers/environment_status_entity.rb b/app/serializers/environment_status_entity.rb
index 3dfa4f204c9..f87cc894d2f 100644
--- a/app/serializers/environment_status_entity.rb
+++ b/app/serializers/environment_status_entity.rb
@@ -5,6 +5,7 @@ class EnvironmentStatusEntity < Grape::Entity
 
   expose :id
   expose :name
+  expose :status
 
   expose :url do |es|
     project_environment_path(es.project, es.environment)
diff --git a/app/serializers/merge_request_widget_entity.rb b/app/serializers/merge_request_widget_entity.rb
index 9ec24f799ef..f33a1654d5e 100644
--- a/app/serializers/merge_request_widget_entity.rb
+++ b/app/serializers/merge_request_widget_entity.rb
@@ -55,6 +55,7 @@ class MergeRequestWidgetEntity < IssuableEntity
 
   expose :merge_commit_message
   expose :actual_head_pipeline, with: PipelineDetailsEntity, as: :pipeline
+  expose :merge_pipeline, with: PipelineDetailsEntity, if: ->(mr, _) { mr.merged? && can?(request.current_user, :read_pipeline, mr.target_project)}
 
   # Booleans
   expose :merge_ongoing?, as: :merge_ongoing
diff --git a/changelogs/unreleased/ac-post-merge-pipeline.yml b/changelogs/unreleased/ac-post-merge-pipeline.yml
new file mode 100644
index 00000000000..08322c9cb8a
--- /dev/null
+++ b/changelogs/unreleased/ac-post-merge-pipeline.yml
@@ -0,0 +1,5 @@
+---
+title: Show post-merge pipeline in merge request page
+merge_request: 22292
+author:
+type: added
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 463a58fff7c..7f7b44800c7 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -648,6 +648,9 @@ msgstr ""
 msgid "Are you sure you want to reset the health check token?"
 msgstr ""
 
+msgid "Are you sure you want to stop this environment?"
+msgstr ""
+
 msgid "Are you sure?"
 msgstr ""
 
@@ -2324,6 +2327,12 @@ msgstr ""
 msgid "DeployTokens|Your new project deploy token has been created."
 msgstr ""
 
+msgid "Deployed to"
+msgstr ""
+
+msgid "Deploying to"
+msgstr ""
+
 msgid "Deprioritize label"
 msgstr ""
 
@@ -2750,6 +2759,9 @@ msgstr ""
 msgid "Failed to check related branches."
 msgstr ""
 
+msgid "Failed to deploy to"
+msgstr ""
+
 msgid "Failed to load emoji list."
 msgstr ""
 
@@ -5604,6 +5616,9 @@ msgstr ""
 msgid "Something went wrong while fetching comments. Please try again."
 msgstr ""
 
+msgid "Something went wrong while fetching the environments for this merge request. Please try again."
+msgstr ""
+
 msgid "Something went wrong while fetching the projects."
 msgstr ""
 
diff --git a/spec/controllers/projects/merge_requests_controller_spec.rb b/spec/controllers/projects/merge_requests_controller_spec.rb
index dcfd6c05200..7b0459e0325 100644
--- a/spec/controllers/projects/merge_requests_controller_spec.rb
+++ b/spec/controllers/projects/merge_requests_controller_spec.rb
@@ -749,13 +749,15 @@ describe Projects::MergeRequestsController do
 
   describe 'GET ci_environments_status' do
     context 'the environment is from a forked project' do
-      let!(:forked)      { fork_project(project, user, repository: true) }
-      let!(:environment) { create(:environment, project: forked) }
-      let!(:deployment)  { create(:deployment, environment: environment, sha: forked.commit.id, ref: 'master') }
-      let(:admin)        { create(:admin) }
+      let(:forked)      { fork_project(project, user, repository: true) }
+      let(:sha)         { forked.commit.sha }
+      let(:environment) { create(:environment, project: forked) }
+      let(:pipeline)    { create(:ci_pipeline, sha: sha, project: forked) }
+      let(:build)       { create(:ci_build, pipeline: pipeline) }
+      let!(:deployment) { create(:deployment, environment: environment, sha: sha, ref: 'master', deployable: build) }
 
       let(:merge_request) do
-        create(:merge_request, source_project: forked, target_project: project)
+        create(:merge_request, source_project: forked, target_project: project, target_branch: 'master', head_pipeline: pipeline)
       end
 
       it 'links to the environment on that project' do
@@ -764,6 +766,35 @@ describe Projects::MergeRequestsController do
         expect(json_response.first['url']).to match /#{forked.full_path}/
       end
 
+      context "when environment_target is 'merge_commit'" do
+        it 'returns nothing' do
+          get_ci_environments_status(environment_target: 'merge_commit')
+
+          expect(response).to have_gitlab_http_status(:ok)
+          expect(json_response).to be_empty
+        end
+
+        context 'when is merged' do
+          let(:source_environment)  { create(:environment, project: project) }
+          let(:merge_commit_sha)    { project.repository.merge(user, forked.commit.id, merge_request, "merged in test") }
+          let(:post_merge_pipeline) { create(:ci_pipeline, sha: merge_commit_sha, project: project) }
+          let(:post_merge_build)    { create(:ci_build, pipeline: post_merge_pipeline) }
+          let!(:source_deployment)  { create(:deployment, environment: source_environment, sha: merge_commit_sha, ref: 'master', deployable: post_merge_build) }
+
+          before do
+            merge_request.update!(merge_commit_sha: merge_commit_sha)
+            merge_request.mark_as_merged!
+          end
+
+          it 'returns the enviroment on the source project' do
+            get_ci_environments_status(environment_target: 'merge_commit')
+
+            expect(response).to have_gitlab_http_status(:ok)
+            expect(json_response.first['url']).to match /#{project.full_path}/
+          end
+        end
+      end
+
       # we're trying to reduce the overall number of queries for this method.
       # set a hard limit for now. https://gitlab.com/gitlab-org/gitlab-ce/issues/52287
       it 'keeps queries in check' do
@@ -772,11 +803,15 @@ describe Projects::MergeRequestsController do
         expect(control_count).to be <= 137
       end
 
-      def get_ci_environments_status
-        get :ci_environments_status,
+      def get_ci_environments_status(extra_params = {})
+        params = {
           namespace_id: merge_request.project.namespace.to_param,
           project_id: merge_request.project,
-          id: merge_request.iid, format: 'json'
+          id: merge_request.iid,
+          format: 'json'
+        }
+
+        get :ci_environments_status, params.merge(extra_params)
       end
     end
   end
diff --git a/spec/features/merge_request/user_sees_deployment_widget_spec.rb b/spec/features/merge_request/user_sees_deployment_widget_spec.rb
index f744d7941f5..a298ead43db 100644
--- a/spec/features/merge_request/user_sees_deployment_widget_spec.rb
+++ b/spec/features/merge_request/user_sees_deployment_widget_spec.rb
@@ -3,15 +3,19 @@ require 'rails_helper'
 describe 'Merge request > User sees deployment widget', :js do
   describe 'when deployed to an environment' do
     let(:user) { create(:user) }
-    let(:project) { merge_request.target_project }
-    let(:merge_request) { create(:merge_request, :merged) }
+    let(:project) { create(:project, :repository) }
+    let(:merge_request) { create(:merge_request, :merged, source_project: project) }
     let(:environment) { create(:environment, project: project) }
     let(:role) { :developer }
-    let(:sha) { project.commit('master').id }
-    let!(:deployment) { create(:deployment, environment: environment, sha: sha) }
+    let(:ref) { merge_request.target_branch }
+    let(:sha) { project.commit(ref).id }
+    let(:pipeline) { create(:ci_pipeline_without_jobs, sha: sha, project: project, ref: ref) }
+    let(:build)    { create(:ci_build, :success, pipeline: pipeline) }
+    let!(:deployment) { create(:deployment, environment: environment, sha: sha, ref: ref, deployable: build) }
     let!(:manual) { }
 
     before do
+      merge_request.update!(merge_commit_sha: sha)
       project.add_user(user, role)
       sign_in(user)
       visit project_merge_request_path(project, merge_request)
@@ -26,15 +30,10 @@ describe 'Merge request > User sees deployment widget', :js do
     end
 
     context 'with stop action' do
-      let(:pipeline) { create(:ci_pipeline, project: project) }
-      let(:build) { create(:ci_build, pipeline: pipeline) }
       let(:manual) { create(:ci_build, :manual, pipeline: pipeline, name: 'close_app') }
-      let(:deployment) do
-        create(:deployment, environment: environment, ref: merge_request.target_branch,
-                            sha: sha, deployable: build, on_stop: 'close_app')
-      end
 
       before do
+        deployment.update!(on_stop: manual.name)
         wait_for_requests
       end
 
diff --git a/spec/features/merge_request/user_sees_merge_widget_spec.rb b/spec/features/merge_request/user_sees_merge_widget_spec.rb
index f15129759de..4e5699f9571 100644
--- a/spec/features/merge_request/user_sees_merge_widget_spec.rb
+++ b/spec/features/merge_request/user_sees_merge_widget_spec.rb
@@ -40,21 +40,26 @@ describe 'Merge request > User sees merge widget', :js do
 
   context 'view merge request' do
     let!(:environment) { create(:environment, project: project) }
+    let(:sha)          { project.commit(merge_request.source_branch).sha }
+    let(:pipeline)     { create(:ci_pipeline_without_jobs, status: 'success', sha: sha, project: project, ref: merge_request.source_branch) }
+    let(:build)        { create(:ci_build, :success, pipeline: pipeline) }
 
     let!(:deployment) do
       create(:deployment, environment: environment,
-                          ref: 'feature',
-                          sha: merge_request.diff_head_sha)
+                          ref: merge_request.source_branch,
+                          deployable: build,
+                          sha: sha)
     end
 
     before do
+      merge_request.update!(head_pipeline: pipeline)
       visit project_merge_request_path(project, merge_request)
     end
 
     it 'shows environments link' do
       wait_for_requests
 
-      page.within('.mr-widget-heading') do
+      page.within('.js-pre-merge-deploy') do
         expect(page).to have_content("Deployed to #{environment.name}")
         expect(find('.js-deploy-url')[:href]).to include(environment.formatted_external_url)
       end
diff --git a/spec/fixtures/api/schemas/entities/merge_request_widget.json b/spec/fixtures/api/schemas/entities/merge_request_widget.json
index c40977bc4ee..35971d564d5 100644
--- a/spec/fixtures/api/schemas/entities/merge_request_widget.json
+++ b/spec/fixtures/api/schemas/entities/merge_request_widget.json
@@ -46,6 +46,7 @@
     "diff_head_commit_short_id": { "type": ["string", "null"] },
     "merge_commit_message": { "type": ["string", "null"] },
     "pipeline": { "type": ["object", "null"] },
+    "merge_pipeline": { "type": ["object", "null"] },
     "work_in_progress": { "type": "boolean" },
     "source_branch_exists": { "type": "boolean" },
     "mergeable_discussions_state": { "type": "boolean" },
diff --git a/spec/javascripts/vue_mr_widget/components/deployment_spec.js b/spec/javascripts/vue_mr_widget/components/deployment_spec.js
index ce850bc621e..d26ffa4b4a6 100644
--- a/spec/javascripts/vue_mr_widget/components/deployment_spec.js
+++ b/spec/javascripts/vue_mr_widget/components/deployment_spec.js
@@ -2,54 +2,48 @@ import Vue from 'vue';
 import deploymentComponent from '~/vue_merge_request_widget/components/deployment.vue';
 import MRWidgetService from '~/vue_merge_request_widget/services/mr_widget_service';
 import { getTimeago } from '~/lib/utils/datetime_utility';
+import mountComponent from '../../helpers/vue_mount_component_helper';
 
-const deploymentMockData = {
-  id: 15,
-  name: 'review/diplo',
-  url: '/root/acets-review-apps/environments/15',
-  stop_url: '/root/acets-review-apps/environments/15/stop',
-  metrics_url: '/root/acets-review-apps/environments/15/deployments/1/metrics',
-  metrics_monitoring_url: '/root/acets-review-apps/environments/15/metrics',
-  external_url: 'http://diplo.',
-  external_url_formatted: 'diplo.',
-  deployed_at: '2017-03-22T22:44:42.258Z',
-  deployed_at_formatted: 'Mar 22, 2017 10:44pm',
-  changes: [
-    {
-      path: 'index.html',
-      external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/index.html',
-    },
-    {
-      path: 'imgs/gallery.html',
-      external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/imgs/gallery.html',
-    },
-    {
-      path: 'about/',
-      external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/about/',
-    },
-  ],
-};
-const createComponent = () => {
+describe('Deployment component', () => {
   const Component = Vue.extend(deploymentComponent);
+  const deploymentMockData = {
+    id: 15,
+    name: 'review/diplo',
+    url: '/root/review-apps/environments/15',
+    stop_url: '/root/review-apps/environments/15/stop',
+    metrics_url: '/root/review-apps/environments/15/deployments/1/metrics',
+    metrics_monitoring_url: '/root/review-apps/environments/15/metrics',
+    external_url: 'http://gitlab.com.',
+    external_url_formatted: 'gitlab',
+    deployed_at: '2017-03-22T22:44:42.258Z',
+    deployed_at_formatted: 'Mar 22, 2017 10:44pm',
+    changes: [
+      {
+        path: 'index.html',
+        external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/index.html',
+      },
+      {
+        path: 'imgs/gallery.html',
+        external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/imgs/gallery.html',
+      },
+      {
+        path: 'about/',
+        external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/about/',
+      },
+    ],
+  };
 
-  return new Component({
-    el: document.createElement('div'),
-    propsData: { deployment: { ...deploymentMockData } },
-  });
-};
-
-describe('Deployment component', () => {
   let vm;
 
-  beforeEach(() => {
-    vm = createComponent();
-  });
-
   afterEach(() => {
     vm.$destroy();
   });
 
-  describe('computed', () => {
+  describe('', () => {
+    beforeEach(() => {
+      vm = mountComponent(Component, { deployment: { ...deploymentMockData } });
+    });
+
     describe('deployTimeago', () => {
       it('return formatted date', () => {
         const readable = getTimeago().format(deploymentMockData.deployed_at);
@@ -111,9 +105,7 @@ describe('Deployment component', () => {
         expect(vm.hasDeploymentMeta).toEqual(false);
       });
     });
-  });
 
-  describe('methods', () => {
     describe('stopEnvironment', () => {
       const url = '/foo/bar';
       const returnPromise = () =>
@@ -152,42 +144,33 @@ describe('Deployment component', () => {
         expect(MRWidgetService.stopEnvironment).not.toHaveBeenCalled();
       });
     });
-  });
-
-  describe('template', () => {
-    let el;
-
-    beforeEach(() => {
-      vm = createComponent(deploymentMockData);
-      el = vm.$el;
-    });
 
     it('renders deployment name', () => {
-      expect(el.querySelector('.js-deploy-meta').getAttribute('href')).toEqual(
+      expect(vm.$el.querySelector('.js-deploy-meta').getAttribute('href')).toEqual(
         deploymentMockData.url,
       );
 
-      expect(el.querySelector('.js-deploy-meta').innerText).toContain(deploymentMockData.name);
+      expect(vm.$el.querySelector('.js-deploy-meta').innerText).toContain(deploymentMockData.name);
     });
 
     it('renders external URL', () => {
-      expect(el.querySelector('.js-deploy-url').getAttribute('href')).toEqual(
+      expect(vm.$el.querySelector('.js-deploy-url').getAttribute('href')).toEqual(
         deploymentMockData.external_url,
       );
 
-      expect(el.querySelector('.js-deploy-url').innerText).toContain('View app');
+      expect(vm.$el.querySelector('.js-deploy-url').innerText).toContain('View app');
     });
 
     it('renders stop button', () => {
-      expect(el.querySelector('.btn')).not.toBeNull();
+      expect(vm.$el.querySelector('.btn')).not.toBeNull();
     });
 
     it('renders deployment time', () => {
-      expect(el.querySelector('.js-deploy-time').innerText).toContain(vm.deployTimeago);
+      expect(vm.$el.querySelector('.js-deploy-time').innerText).toContain(vm.deployTimeago);
     });
 
     it('renders metrics component', () => {
-      expect(el.querySelector('.js-mr-memory-usage')).not.toBeNull();
+      expect(vm.$el.querySelector('.js-mr-memory-usage')).not.toBeNull();
     });
   });
 
@@ -196,8 +179,7 @@ describe('Deployment component', () => {
       window.gon = window.gon || {};
       window.gon.features = window.gon.features || {};
       window.gon.features.ciEnvironmentsStatusChanges = true;
-
-      vm = createComponent(deploymentMockData);
+      vm = mountComponent(Component, { deployment: { ...deploymentMockData } });
     });
 
     afterEach(() => {
@@ -216,7 +198,7 @@ describe('Deployment component', () => {
       window.gon.features = window.gon.features || {};
       window.gon.features.ciEnvironmentsStatusChanges = false;
 
-      vm = createComponent(deploymentMockData);
+      vm = mountComponent(Component, { deployment: { ...deploymentMockData } });
     });
 
     afterEach(() => {
@@ -228,4 +210,44 @@ describe('Deployment component', () => {
       expect(vm.$el.querySelector('.js-deploy-url-feature-flag')).not.toBeNull();
     });
   });
+
+  describe('deployment status', () => {
+    describe('running', () => {
+      beforeEach(() => {
+        vm = mountComponent(Component, {
+          deployment: Object.assign({}, deploymentMockData, { status: 'running' }),
+        });
+      });
+
+      it('renders information about running deployment', () => {
+        expect(vm.$el.querySelector('.js-deployment-info').textContent).toContain('Deploying to');
+      });
+    });
+
+    describe('success', () => {
+      beforeEach(() => {
+        vm = mountComponent(Component, {
+          deployment: Object.assign({}, deploymentMockData, { status: 'success' }),
+        });
+      });
+
+      it('renders information about finished deployment', () => {
+        expect(vm.$el.querySelector('.js-deployment-info').textContent).toContain('Deployed to');
+      });
+    });
+
+    describe('failed', () => {
+      beforeEach(() => {
+        vm = mountComponent(Component, {
+          deployment: Object.assign({}, deploymentMockData, { status: 'failed' }),
+        });
+      });
+
+      it('renders information about finished deployment', () => {
+        expect(vm.$el.querySelector('.js-deployment-info').textContent).toContain(
+          'Failed to deploy to',
+        );
+      });
+    });
+  });
 });
diff --git a/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js b/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
index d1a064b9f4d..27b6c91e154 100644
--- a/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
+++ b/spec/javascripts/vue_mr_widget/mr_widget_options_spec.js
@@ -189,7 +189,7 @@ describe('mrWidgetOptions', () => {
       it('should fetch deployments', done => {
         spyOn(vm.service, 'fetchDeployments').and.returnValue(returnPromise([{ id: 1 }]));
 
-        vm.fetchDeployments();
+        vm.fetchPreMergeDeployments();
 
         setTimeout(() => {
           expect(vm.service.fetchDeployments).toHaveBeenCalled();
@@ -454,6 +454,7 @@ describe('mrWidgetOptions', () => {
       deployed_at: '2017-03-22T22:44:42.258Z',
       deployed_at_formatted: 'Mar 22, 2017 10:44pm',
       changes,
+      status: 'success'
     };
 
     beforeEach(done => {
@@ -486,4 +487,189 @@ describe('mrWidgetOptions', () => {
       ).toEqual(changes.length);
     });
   });
+
+  describe('pipeline for target branch after merge', () => {
+    describe('with information for target branch pipeline', () => {
+      beforeEach(done => {
+        vm.mr.state = 'merged';
+        vm.mr.mergePipeline = {
+          id: 127,
+          user: {
+            id: 1,
+            name: 'Administrator',
+            username: 'root',
+            state: 'active',
+            avatar_url: null,
+            web_url: 'http://localhost:3000/root',
+            status_tooltip_html: null,
+            path: '/root',
+          },
+          active: true,
+          coverage: null,
+          source: 'push',
+          created_at: '2018-10-22T11:41:35.186Z',
+          updated_at: '2018-10-22T11:41:35.433Z',
+          path: '/root/ci-web-terminal/pipelines/127',
+          flags: {
+            latest: true,
+            stuck: true,
+            auto_devops: false,
+            yaml_errors: false,
+            retryable: false,
+            cancelable: true,
+            failure_reason: false,
+          },
+          details: {
+            status: {
+              icon: 'status_pending',
+              text: 'pending',
+              label: 'pending',
+              group: 'pending',
+              tooltip: 'pending',
+              has_details: true,
+              details_path: '/root/ci-web-terminal/pipelines/127',
+              illustration: null,
+              favicon:
+                '/assets/ci_favicons/favicon_status_pending-5bdf338420e5221ca24353b6bff1c9367189588750632e9a871b7af09ff6a2ae.png',
+            },
+            duration: null,
+            finished_at: null,
+            stages: [
+              {
+                name: 'test',
+                title: 'test: pending',
+                status: {
+                  icon: 'status_pending',
+                  text: 'pending',
+                  label: 'pending',
+                  group: 'pending',
+                  tooltip: 'pending',
+                  has_details: true,
+                  details_path: '/root/ci-web-terminal/pipelines/127#test',
+                  illustration: null,
+                  favicon:
+                    '/assets/ci_favicons/favicon_status_pending-5bdf338420e5221ca24353b6bff1c9367189588750632e9a871b7af09ff6a2ae.png',
+                },
+                path: '/root/ci-web-terminal/pipelines/127#test',
+                dropdown_path: '/root/ci-web-terminal/pipelines/127/stage.json?stage=test',
+              },
+            ],
+            artifacts: [],
+            manual_actions: [],
+            scheduled_actions: [],
+          },
+          ref: {
+            name: 'master',
+            path: '/root/ci-web-terminal/commits/master',
+            tag: false,
+            branch: true,
+          },
+          commit: {
+            id: 'aa1939133d373c94879becb79d91828a892ee319',
+            short_id: 'aa193913',
+            title: "Merge branch 'master-test' into 'master'",
+            created_at: '2018-10-22T11:41:33.000Z',
+            parent_ids: [
+              '4622f4dd792468993003caf2e3be978798cbe096',
+              '76598df914cdfe87132d0c3c40f80db9fa9396a4',
+            ],
+            message:
+              "Merge branch 'master-test' into 'master'\n\nUpdate .gitlab-ci.yml\n\nSee merge request root/ci-web-terminal!1",
+            author_name: 'Administrator',
+            author_email: 'admin@example.com',
+            authored_date: '2018-10-22T11:41:33.000Z',
+            committer_name: 'Administrator',
+            committer_email: 'admin@example.com',
+            committed_date: '2018-10-22T11:41:33.000Z',
+            author: {
+              id: 1,
+              name: 'Administrator',
+              username: 'root',
+              state: 'active',
+              avatar_url: null,
+              web_url: 'http://localhost:3000/root',
+              status_tooltip_html: null,
+              path: '/root',
+            },
+            author_gravatar_url: null,
+            commit_url:
+              'http://localhost:3000/root/ci-web-terminal/commit/aa1939133d373c94879becb79d91828a892ee319',
+            commit_path: '/root/ci-web-terminal/commit/aa1939133d373c94879becb79d91828a892ee319',
+          },
+          cancel_path: '/root/ci-web-terminal/pipelines/127/cancel',
+        };
+        vm.$nextTick(done);
+      });
+
+      it('renders pipeline block', () => {
+        expect(vm.$el.querySelector('.js-post-merge-pipeline')).not.toBeNull();
+      });
+
+      describe('with post merge deployments', () => {
+        beforeEach(done => {
+          vm.mr.postMergeDeployments = [{
+            id: 15,
+            name: 'review/diplo',
+            url: '/root/acets-review-apps/environments/15',
+            stop_url: '/root/acets-review-apps/environments/15/stop',
+            metrics_url: '/root/acets-review-apps/environments/15/deployments/1/metrics',
+            metrics_monitoring_url: '/root/acets-review-apps/environments/15/metrics',
+            external_url: 'http://diplo.',
+            external_url_formatted: 'diplo.',
+            deployed_at: '2017-03-22T22:44:42.258Z',
+            deployed_at_formatted: 'Mar 22, 2017 10:44pm',
+            changes: [
+              {
+                path: 'index.html',
+                external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/index.html',
+              },
+              {
+                path: 'imgs/gallery.html',
+                external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/imgs/gallery.html',
+              },
+              {
+                path: 'about/',
+                external_url: 'http://root-master-patch-91341.volatile-watch.surge.sh/about/',
+              },
+            ],
+            status: 'success'
+          }];
+
+          vm.$nextTick(done);
+        });
+
+        it('renders post deployment information', () => {
+          expect(vm.$el.querySelector('.js-post-deployment')).not.toBeNull();
+        });
+      });
+    });
+
+    describe('without information for target branch pipeline', () => {
+      beforeEach(done => {
+        vm.mr.state = 'merged';
+
+        vm.$nextTick(done);
+      });
+
+      it('does not render pipeline block', () => {
+        expect(vm.$el.querySelector('.js-post-merge-pipeline')).toBeNull();
+      });
+    });
+
+    describe('when state is not merged', () => {
+      beforeEach(done => {
+        vm.mr.state = 'archived';
+
+        vm.$nextTick(done);
+      });
+
+      it('does not render pipeline block', () => {
+        expect(vm.$el.querySelector('.js-post-merge-pipeline')).toBeNull();
+      });
+
+      it('does not render post deployment information', () => {
+        expect(vm.$el.querySelector('.js-post-deployment')).toBeNull();
+      });
+    });
+  });
 });
diff --git a/spec/models/environment_status_spec.rb b/spec/models/environment_status_spec.rb
index f2eb263c98c..e7805d52d75 100644
--- a/spec/models/environment_status_spec.rb
+++ b/spec/models/environment_status_spec.rb
@@ -5,13 +5,15 @@ describe EnvironmentStatus do
   let(:environment)   { deployment.environment}
   let(:project)       { deployment.project }
   let(:merge_request) { create(:merge_request, :deployed_review_app, deployment: deployment) }
+  let(:sha)           { deployment.sha }
 
-  subject(:environment_status) { described_class.new(environment, merge_request) }
+  subject(:environment_status) { described_class.new(environment, merge_request, sha) }
 
   it { is_expected.to delegate_method(:id).to(:environment) }
   it { is_expected.to delegate_method(:name).to(:environment) }
   it { is_expected.to delegate_method(:project).to(:environment) }
   it { is_expected.to delegate_method(:deployed_at).to(:deployment).as(:created_at) }
+  it { is_expected.to delegate_method(:status).to(:deployment) }
 
   describe '#project' do
     subject { environment_status.project }
@@ -58,4 +60,32 @@ describe EnvironmentStatus do
       )
     end
   end
+
+  describe '.for_merge_request' do
+    let(:admin)    { create(:admin) }
+    let(:pipeline) { create(:ci_pipeline, sha: sha) }
+
+    it 'is based on merge_request.head_pipeline' do
+      expect(merge_request).to receive(:head_pipeline).and_return(pipeline)
+      expect(merge_request).not_to receive(:merge_pipeline)
+
+      described_class.for_merge_request(merge_request, admin)
+    end
+  end
+
+  describe '.after_merge_request' do
+    let(:admin)    { create(:admin) }
+    let(:pipeline) { create(:ci_pipeline, sha: sha) }
+
+    before do
+      merge_request.mark_as_merged!
+    end
+
+    it 'is based on merge_request.merge_pipeline' do
+      expect(merge_request).to receive(:merge_pipeline).and_return(pipeline)
+      expect(merge_request).not_to receive(:head_pipeline)
+
+      described_class.after_merge_request(merge_request, admin)
+    end
+  end
 end
diff --git a/spec/models/merge_request_spec.rb b/spec/models/merge_request_spec.rb
index 666d7e69f89..c8943f2d86f 100644
--- a/spec/models/merge_request_spec.rb
+++ b/spec/models/merge_request_spec.rb
@@ -1058,6 +1058,26 @@ describe MergeRequest do
     end
   end
 
+  describe '#merge_pipeline' do
+    it 'returns nil when not merged' do
+      expect(subject.merge_pipeline).to be_nil
+    end
+
+    context 'when the MR is merged' do
+      let(:sha)      { subject.target_project.commit.id }
+      let(:pipeline) { create(:ci_empty_pipeline, sha: sha, ref: subject.target_branch, project: subject.target_project) }
+
+      before do
+        subject.mark_as_merged!
+        subject.update_attribute(:merge_commit_sha, pipeline.sha)
+      end
+
+      it 'returns the post-merge pipeline' do
+        expect(subject.merge_pipeline).to eq(pipeline)
+      end
+    end
+  end
+
   describe '#has_ci?' do
     let(:merge_request) { build_stubbed(:merge_request) }
 
diff --git a/spec/serializers/environment_status_entity_spec.rb b/spec/serializers/environment_status_entity_spec.rb
index 6894c65d639..1b4d8b70aa6 100644
--- a/spec/serializers/environment_status_entity_spec.rb
+++ b/spec/serializers/environment_status_entity_spec.rb
@@ -9,7 +9,7 @@ describe EnvironmentStatusEntity do
   let(:project)       { deployment.project }
   let(:merge_request) { create(:merge_request, :deployed_review_app, deployment: deployment) }
 
-  let(:environment_status) { EnvironmentStatus.new(environment, merge_request) }
+  let(:environment_status) { EnvironmentStatus.new(environment, merge_request, merge_request.diff_head_sha) }
   let(:entity)             { described_class.new(environment_status, request: request) }
 
   subject { entity.as_json }
@@ -26,6 +26,7 @@ describe EnvironmentStatusEntity do
   it { is_expected.to include(:deployed_at) }
   it { is_expected.to include(:deployed_at_formatted) }
   it { is_expected.to include(:changes) }
+  it { is_expected.to include(:status) }
 
   it { is_expected.not_to include(:stop_url) }
   it { is_expected.not_to include(:metrics_url) }
diff --git a/spec/serializers/merge_request_widget_entity_spec.rb b/spec/serializers/merge_request_widget_entity_spec.rb
index 5bf8aa7f23f..561421d5ac8 100644
--- a/spec/serializers/merge_request_widget_entity_spec.rb
+++ b/spec/serializers/merge_request_widget_entity_spec.rb
@@ -52,6 +52,40 @@ describe MergeRequestWidgetEntity do
     end
   end
 
+  describe 'merge_pipeline' do
+    it 'returns nil' do
+      expect(subject[:merge_pipeline]).to be_nil
+    end
+
+    context 'when is merged' do
+      let(:resource) { create(:merged_merge_request, source_project: project, merge_commit_sha: project.commit.id) }
+      let(:pipeline) { create(:ci_empty_pipeline, project: project, ref: resource.target_branch, sha: resource.merge_commit_sha) }
+
+      before do
+        project.add_maintainer(user)
+      end
+
+      it 'returns merge_pipeline' do
+        pipeline.reload
+        pipeline_payload = PipelineDetailsEntity
+                             .represent(pipeline, request: request)
+                             .as_json
+
+        expect(subject[:merge_pipeline]).to eq(pipeline_payload)
+      end
+
+      context 'when user cannot read pipelines on target project' do
+        before do
+          project.add_guest(user)
+        end
+
+        it 'returns nil' do
+          expect(subject[:merge_pipeline]).to be_nil
+        end
+      end
+    end
+  end
+
   describe 'metrics' do
     context 'when metrics record exists with merged data' do
       before do