Adds metrics to Operartions tab in projects sidebar

app/controllers/projects/application_controller.rb

@@ -5,6 +5,7 @@ class Projects::ApplicationController < ApplicationController
   skip_before_action :authenticate_user!
   before_action :project
   before_action :repository
+  before_action :environment
   layout 'project'
 
   helper_method :repository, :can_collaborate_with_project?, :user_access
@@ -32,6 +33,10 @@ class Projects::ApplicationController < ApplicationController
     @repository ||= project.repository
   end
 
+  def environment
+    @environment ||= project.environments.first
+  end
+
   def authorize_action!(action)
     unless can?(current_user, action, project)
       return access_denied!

app/controllers/projects_controller.rb

@@ -8,6 +8,7 @@ class ProjectsController < Projects::ApplicationController
   before_action :redirect_git_extension, only: [:show]
   before_action :project, except: [:index, :new, :create]
   before_action :repository, except: [:index, :new, :create]
+  before_action :environment, except: [:index, :new, :create]
   before_action :assign_ref_vars, only: [:show], if: :repo_exists?
   before_action :tree, only: [:show], if: [:repo_exists?, :project_view_files?]
   before_action :lfs_blob_ids, only: [:show], if: [:repo_exists?, :project_view_files?]

app/helpers/environments_helper.rb

@@ -4,4 +4,10 @@ module EnvironmentsHelper
       endpoint: project_environments_path(@project, format: :json)
     }
   end
+
+  def metrics_path(project, environment)
+    metrics_project_environment_path(project, environment) if environment
+
+    project_environments_path(project)
+  end
 end

app/views/layouts/nav/sidebar/_project.html.haml

@@ -210,6 +210,11 @@
             %li.divider.fly-out-top-item
 
             - if project_nav_tab? :environments
+              = nav_link(controller: [:environments, :metrics]) do
+                = link_to metrics_path(@project, @environment), title: 'Metrics', class: 'shortcuts-environments' do
+                  %span
+                    = _('Metrics')
+
               = nav_link(controller: :environments) do
                 = link_to project_environments_path(@project), title: 'Environments', class: 'shortcuts-environments' do
                   %span