Add domains to backends, and rework build jobs

Add a domain to the libvirt and AWS Terraform backends. Along the way,
improve the backend controllers and views, and rework the build jobs,
simplifying them in to a single new class GovukGuix::BuildJob, which
uses configuration from the respective backend.

1 files changed, 55 insertions, 0 deletions

diff --git a/app/jobs/govuk_guix/build_job.rb b/app/jobs/govuk_guix/build_job.rb
new file mode 100644
index 0000000..d09fc68
--- /dev/null
+++ b/app/jobs/govuk_guix/build_job.rb
@@ -0,0 +1,55 @@
+class GovukGuix::BuildJob < GovukGuix::Job
+  DEFAULT_ARGUMENTS = {
+    'rails-environment' => 'production',
+    'use-high-ports' => 'false',
+    'fallback' => true
+  }.freeze
+
+  @retry_interval = 30
+
+  def run(mini_environment_id, services, arguments)
+    logger.info(self.class) do
+      "Building mini environment #{mini_environment_id}"
+    end
+
+    mini_environment = MiniEnvironment.find(mini_environment_id)
+
+    output = run_command(
+      "#{mini_environment.govuk_guix_revision.store_path}/bin/govuk",
+      'system',
+      'build',
+      *hash_to_arguments(
+        DEFAULT_ARGUMENTS.merge(arguments)
+      ),
+      *signon_user_arguments(mini_environment.signon_users),
+      *services
+    )
+
+    build_output = output.last.strip
+    logger.debug(self.class) { "build_output: #{build_output}" }
+
+    mini_environment.update(
+      backend_data: {
+        build_output: build_output
+      }
+    )
+  end
+
+  def signon_user_to_sexp(signon_user)
+    keys = %w(name email role)
+
+    sexp_contents = keys.zip(
+      signon_user.values_at(*keys)
+    ).map do |(key, value)|
+      "#:#{key} \"#{value}\""
+    end
+
+    "(#{sexp_contents.join(' ')})"
+  end
+
+  def signon_user_arguments(signon_users)
+    signon_users.map do |signon_user|
+      "--signon-user=#{signon_user_to_sexp(signon_user)}"
+    end
+  end
+end