From ec1039c336a9b3f796b3d805312f3b2dc0a0157c Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Sat, 23 Jun 2018 13:02:47 +0100
Subject: Support refreshing the state of backends

---
 app/controllers/backends/terraform_aws_controller.rb     |  4 ++++
 app/controllers/backends/terraform_libvirt_controller.rb |  4 ++++
 app/models/backends/terraform_aws/backend_methods.rb     | 11 +++++++++++
 app/models/backends/terraform_libvirt/backend_methods.rb | 14 ++++++++++++++
 app/views/backends/terraform_aws/show.html.erb           | 11 +++++++++++
 app/views/backends/terraform_libvirt/show.html.erb       | 11 +++++++++++
 6 files changed, 55 insertions(+)

(limited to 'app')

diff --git a/app/controllers/backends/terraform_aws_controller.rb b/app/controllers/backends/terraform_aws_controller.rb
index f11403f..004f601 100644
--- a/app/controllers/backends/terraform_aws_controller.rb
+++ b/app/controllers/backends/terraform_aws_controller.rb
@@ -69,6 +69,10 @@ class Backends::TerraformAwsController < ApplicationController
       Backends::TerraformAwsJob.enqueue(@backend.id, :deploy_backend)
 
       flash[:notice] = 'Deploying the backend'
+    when 'Refresh state'
+      Backends::TerraformAwsJob.enqueue(@backend.id, :refresh_backend_state)
+
+      flash[:notice] = 'Refreshing the backend state information'
     else
       flash[:error] = "Unknown action #{action}"
     end
diff --git a/app/controllers/backends/terraform_libvirt_controller.rb b/app/controllers/backends/terraform_libvirt_controller.rb
index 1feae41..3a69b5b 100644
--- a/app/controllers/backends/terraform_libvirt_controller.rb
+++ b/app/controllers/backends/terraform_libvirt_controller.rb
@@ -71,6 +71,10 @@ class Backends::TerraformLibvirtController < ApplicationController
       Backends::TerraformLibvirtJob.enqueue(@backend.id, :deploy_backend)
 
       flash[:notice] = 'Deploying the backend'
+    when 'Refresh state'
+      Backends::TerraformLibvirtJob.enqueue(@backend.id, :refresh_backend_state)
+
+      flash[:notice] = 'Refreshing the backend state information'
     else
       flash[:error] = "Unknown action #{action}"
     end
diff --git a/app/models/backends/terraform_aws/backend_methods.rb b/app/models/backends/terraform_aws/backend_methods.rb
index 8c867d9..f8338a4 100644
--- a/app/models/backends/terraform_aws/backend_methods.rb
+++ b/app/models/backends/terraform_aws/backend_methods.rb
@@ -55,6 +55,17 @@ module Backends::TerraformAws::BackendMethods
     end
   end
 
+  def refresh_backend_state
+    TerraformWorkingDirectory.new(
+      terraform_state_id,
+      'terraform/aws/backend'
+    ).within_working_directory do
+      RubyTerraform.refresh(
+        vars: backend_terraform_variables
+      )
+    end
+  end
+
   def destroy_backend
     TerraformWorkingDirectory.new(
       terraform_state_id,
diff --git a/app/models/backends/terraform_libvirt/backend_methods.rb b/app/models/backends/terraform_libvirt/backend_methods.rb
index 7595611..9507e2c 100644
--- a/app/models/backends/terraform_libvirt/backend_methods.rb
+++ b/app/models/backends/terraform_libvirt/backend_methods.rb
@@ -49,6 +49,20 @@ module Backends::TerraformLibvirt::BackendMethods
     end
   end
 
+  def refresh_backend_state
+    TerraformWorkingDirectory.new(
+      terraform_state_id,
+      'terraform/libvirt/backend'
+    ).within_working_directory do
+      RubyTerraform.refresh(
+        vars: {
+          uri: uri,
+          domain: domain
+        }
+      )
+    end
+  end
+
   def backend_terraform_states
     TerraformState.where(
       state_id: terraform_state_id
diff --git a/app/views/backends/terraform_aws/show.html.erb b/app/views/backends/terraform_aws/show.html.erb
index eca5d3f..f468567 100644
--- a/app/views/backends/terraform_aws/show.html.erb
+++ b/app/views/backends/terraform_aws/show.html.erb
@@ -52,6 +52,17 @@ License along with the GOV.UK Mini Environment Admin.  If not, see
                      class: 'btn btn-lg btn-danger')
       %>
     <% end %>
+
+    <%= form_with(
+      url: perform_action_terraform_aws_backend_path(@backend),
+      local: true,
+      method: "post"
+    ) do %>
+      <%= submit_tag("Refresh state",
+                     role: 'button',
+                     class: 'btn btn-lg btn-info')
+      %>
+    <% end %>
   </div>
   <div class="col-md-6">
     <%= render(
diff --git a/app/views/backends/terraform_libvirt/show.html.erb b/app/views/backends/terraform_libvirt/show.html.erb
index 5b2213b..f97b4e2 100644
--- a/app/views/backends/terraform_libvirt/show.html.erb
+++ b/app/views/backends/terraform_libvirt/show.html.erb
@@ -52,6 +52,17 @@ License along with the GOV.UK Mini Environment Admin.  If not, see
                      class: 'btn btn-lg btn-danger')
       %>
     <% end %>
+
+    <%= form_with(
+      url: perform_action_terraform_libvirt_backend_path(@backend),
+      local: true,
+      method: "post"
+    ) do %>
+      <%= submit_tag("Refresh state",
+                     role: 'button',
+                     class: 'btn btn-lg btn-info')
+      %>
+    <% end %>
   </div>
   <div class="col-md-6">
     <%= render(
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