Replace the GovukGuix::BuildJob

With a service that performs the same function, and use the
MiniEnvironmentJob instead.

1 files changed, 89 insertions, 0 deletions

diff --git a/app/services/govuk_guix/build_mini_environment.rb b/app/services/govuk_guix/build_mini_environment.rb
new file mode 100644
index 0000000..5e5fd85
--- /dev/null
+++ b/app/services/govuk_guix/build_mini_environment.rb
@@ -0,0 +1,89 @@
+# GOV.UK Mini Environment Admin
+# Copyright © 2018  Christopher Baines <mail@cbaines.net>
+#
+# This file is part of the GOV.UK Mini Environment Admin.
+#
+# The GOV.UK Mini Environment Admin is free software: you can
+# redistribute it and/or modify it under the terms of the GNU Affero
+# General Public License as published by the Free Software Foundation,
+# either version 3 of the License, or (at your option) any later
+# version.
+#
+# The GOV.UK Mini Environment Admin is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public
+# License along with the GOV.UK Mini Environment Admin.  If not, see
+# <http://www.gnu.org/licenses/>.
+
+module GovukGuix::BuildMiniEnvironment
+  extend ::ShellUtils
+
+  DEFAULT_ARGUMENTS = {
+    'rails-environment' => 'production',
+    'use-high-ports' => 'false',
+    'fallback' => true
+  }.freeze
+
+  def self.build(mini_environment_id, options)
+    logger.info(self.class) do
+      "Building mini environment #{mini_environment_id}"
+    end
+
+    mini_environment = MiniEnvironment.find(mini_environment_id)
+
+    remote_host = options[:run_remotely_on_host]
+
+    if remote_host
+      # Copy the revision to the remote host, to ensure it's available
+      # there
+      run_command(
+        'guix',
+        'copy',
+        "--to=#{remote_host}",
+        mini_environment.govuk_guix_revision.store_path
+      )
+    end
+
+    output = run_command(
+      "#{mini_environment.govuk_guix_revision.store_path}/bin/govuk",
+      'system',
+      'build',
+      *hash_to_arguments(
+        DEFAULT_ARGUMENTS.merge(options[:arguments])
+      ),
+      *signon_user_arguments(mini_environment.signon_users),
+      *options[:services],
+      run_remotely_on_host: remote_host
+    )
+
+    build_output = output.last.strip
+    logger.debug(self.class) { "build_output: #{build_output}" }
+
+    mini_environment.update(
+      backend_data: {
+        build_output: build_output
+      }
+    )
+  end
+
+  def self.signon_user_to_sexp(signon_user)
+    keys = %w(name email role passphrase)
+
+    sexp_contents = keys.zip(
+      signon_user.values_at(*keys)
+    ).map do |(key, value)|
+      "#:#{key} \"#{value}\""
+    end
+
+    "(#{sexp_contents.join(' ')})"
+  end
+
+  def self.signon_user_arguments(signon_users)
+    signon_users.map do |signon_user|
+      "--signon-user=#{signon_user_to_sexp(signon_user)}"
+    end
+  end
+end