add django-healthcheck and /healthcheck/ endpoint

Change-Id: I900a64495d911bc116a800d6b04bcf237b2d7c45

ara/server/settings.py

@@ -135,6 +135,8 @@ INSTALLED_APPS = [
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
+    "health_check",
+    "health_check.db",
     "corsheaders",
     "rest_framework",
     "django_filters",

ara/server/urls.py

@@ -43,5 +43,6 @@ urlpatterns = [
     path("api/", APIIndex.as_view(), name='api-index'),
     path("api/v1/", include("ara.api.urls")),
     path("admin/", admin.site.urls),
+    path("healthcheck/", include("health_check.urls")),
 ]
 # fmt: on

setup.cfg

@@ -37,6 +37,7 @@ server=
     djangorestframework>=3.9.1
     django-cors-headers
     django-filter
+    django-health-check
     dynaconf[yaml]
     tzlocal
     whitenoise