Improve the support for Libvirt

Separate out the backend things, like the virtual network, from the
mini environment. This makes it easier to have resources shared
between mini environments.

Also handle the deployment of this new backend related Terraform
configuration.

1 files changed, 38 insertions, 4 deletions

diff --git a/app/models/backends/terraform_libvirt.rb b/app/models/backends/terraform_libvirt.rb
index f108560..b069b70 100644
--- a/app/models/backends/terraform_libvirt.rb
+++ b/app/models/backends/terraform_libvirt.rb
@@ -56,7 +56,11 @@ class Backends::TerraformLibvirt < ApplicationRecord
       web_domain: "www.#{slug}.#{domain}",
       # Assume that this is a local environment, and not externally
       # accessible
-      use_https: 'development'
+      use_https: 'development',
+      http_ports_mode: 'standard',
+      host_name: "#{slug}.#{domain}",
+      admin_environment_label: mini_environment.name,
+      signon_instance_name: slug
     )
   end
 
@@ -80,10 +84,29 @@ class Backends::TerraformLibvirt < ApplicationRecord
     end
   end
 
+  def deploy_backend
+    TerraformWorkingDirectory.new(
+      terraform_state_id,
+      'terraform/libvirt/backend'
+    ).within_working_directory do
+      RubyTerraform.apply(
+        vars: {
+          uri: uri,
+          domain: domain
+        },
+        auto_approve: true
+      )
+    end
+  end
+
+  def terraform_state_id
+    "backend/terraform_libvirt/#{id}"
+  end
+
   def within_terraform_working_directory(mini_environment, &block)
     TerraformWorkingDirectory.new(
       "mini_environment/#{mini_environment.id}",
-      'terraform/libvirt'
+      'terraform/libvirt/mini_environment'
     ).within_working_directory(&block)
   end
 
@@ -92,10 +115,21 @@ class Backends::TerraformLibvirt < ApplicationRecord
   end
 
   def terraform_variables(mini_environment)
+    slug = mini_environment.name.parameterize
+
     {
       uri: uri,
-      machine_name: mini_environment.name.parameterize,
-      vm_image_and_system: mini_environment.backend_data['build_output']
+      machine_name: slug,
+      host_name: "#{slug}.#{domain}",
+      vm_image_and_system: mini_environment.backend_data['build_output'],
+      backend_remote_state_address: (
+        'http://localhost:3000' +
+        Rails
+          .application
+          .routes
+          .url_helpers
+          .terraform_http_backend_path(terraform_state_id)
+      )
     }
   end
 end