Add support for healthcheck middleware options

Depends-on: https://review.opendev.org/772202
Depends-on: https://review.opendev.org/800405
Change-Id: I7b20aa48cb16927211a862e264bb51ae4bb50f42

manifests/healthcheck.pp

@@ -0,0 +1,50 @@
+# == Class: mistral::healthcheck
+#
+# Configure oslo_middleware options in healthcheck section
+#
+# == Params
+#
+# [*enabled*]
+#   (Optional) Enable the healthcheck endpoint at /healthcheck.
+#   Defaults to $facts['os_service_default']
+#
+# [*detailed*]
+#   (Optional) Show more detailed information as part of the response.
+#   Defaults to $facts['os_service_default']
+#
+# [*backends*]
+#   (Optional) Additional backends that can perform health checks and report
+#   that information back as part of a request.
+#   Defaults to $facts['os_service_default']
+#
+# [*disable_by_file_path*]
+#   (Optional) Check the presense of a file to determine if an application
+#   is running on a port.
+#   Defaults to $facts['os_service_default']
+#
+# [*disable_by_file_paths*]
+#   (Optional) Check the presense of a file to determine if an application
+#   is running on a port. Expects a "port:path" list of strings.
+#   Defaults to $facts['os_service_default']
+#
+class mistral::healthcheck (
+  $enabled               = $facts['os_service_default'],
+  $detailed              = $facts['os_service_default'],
+  $backends              = $facts['os_service_default'],
+  $disable_by_file_path  = $facts['os_service_default'],
+  $disable_by_file_paths = $facts['os_service_default'],
+) {
+
+  include mistral::deps
+
+  mistral_config {
+    'healthcheck/enabled': value => $enabled,
+  }
+
+  oslo::healthcheck { 'mistral_config':
+    detailed              => $detailed,
+    backends              => $backends,
+    disable_by_file_path  => $disable_by_file_path,
+    disable_by_file_paths => $disable_by_file_paths,
+  }
+}

releasenotes/notes/healthcheck-7b8fc85f5e53b674.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    The new ``mistral::healthcheck`` class has been added. This class manages
+    parameters of healthcheck middlware in oslo.middleware.

spec/classes/mistral_healthcheck_spec.rb

@@ -0,0 +1,60 @@
+require 'spec_helper'
+
+describe 'mistral::healthcheck' do
+
+  shared_examples_for 'mistral::healthcheck' do
+
+    context 'with default parameters' do
+      let :params do
+        {}
+      end
+
+      it 'configures default values' do
+        is_expected.to contain_mistral_config('healthcheck/enabled').with_value('<SERVICE DEFAULT>')
+
+        is_expected.to contain_oslo__healthcheck('mistral_config').with(
+          :detailed              => '<SERVICE DEFAULT>',
+          :backends              => '<SERVICE DEFAULT>',
+          :disable_by_file_path  => '<SERVICE DEFAULT>',
+          :disable_by_file_paths => '<SERVICE DEFAULT>',
+        )
+      end
+    end
+
+    context 'with specific parameters' do
+      let :params do
+        {
+          :enabled               => true,
+          :detailed              => true,
+          :backends              => ['disable_by_file'],
+          :disable_by_file_path  => '/etc/mistral/healthcheck/disabled',
+          :disable_by_file_paths => ['8989:/etc/mistral/healthcheck/disabled'],
+        }
+      end
+
+      it 'configures specified values' do
+        is_expected.to contain_mistral_config('healthcheck/enabled').with_value(true)
+
+        is_expected.to contain_oslo__healthcheck('mistral_config').with(
+          :detailed              => true,
+          :backends              => ['disable_by_file'],
+          :disable_by_file_path  => '/etc/mistral/healthcheck/disabled',
+          :disable_by_file_paths => ['8989:/etc/mistral/healthcheck/disabled'],
+        )
+      end
+    end
+  end
+
+  on_supported_os({
+    :supported_os   => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      it_configures 'mistral::healthcheck'
+    end
+  end
+
+end