Added env external link and light web terminal spec

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

@@ -16,6 +16,8 @@
 
       .col-sm-6
         .nav-controls
+          = link_to @environment.external_url, class: 'btn btn-default' do
+            = icon('external-link')
           = render 'projects/deployments/actions', deployment: @environment.last_deployment
 
 .terminal-container{ class: container_class }

changelogs/unreleased/27336-add-environment-url-link-to-terminal-page.yml

@@ -0,0 +1,4 @@
+---
+title: Added external environment link to web terminal view
+merge_request: 8303
+author:

spec/features/environment_spec.rb

@@ -101,6 +101,22 @@ feature 'Environment', :feature do
               scenario 'it shows the terminal button' do
                 expect(page).to have_terminal_button
               end
+
+              context 'web terminal', :js do
+                before do
+                  # Stub #terminals as it causes js-enabled feature specs to render the page incorrectly
+                  allow_any_instance_of(Environment).to receive(:terminals) { nil }
+                  visit terminal_namespace_project_environment_path(project.namespace, project, environment)
+                end
+
+                it 'displays a web terminal' do
+                  expect(page).to have_selector('#terminal')
+                end
+
+                it 'displays a link to the environment external url' do
+                  expect(page).to have_link(nil, href: environment.external_url)
+                end
+              end
             end
 
             context 'for developer' do