working healthcheck (ready to merge)

Dockerfile

@@ -17,6 +17,7 @@ RUN : \
         gnupg \
         wget \
         gettext \
+        curl \
     && rm -rf /var/lib/apt/lists* \
     && :
 

docker-compose.yml

@@ -34,16 +34,27 @@ services:
 
   backend:
     <<: *x-django
+    healthcheck:
+      test: ["CMD", "curl", "--fail", "http://localhost:8000/healthz/"]
+      interval: 5s
+      timeout: 2s
+      retries: 10
+      start_interval: 10s
     ports:
       - "8000:8000"
 
   dramatiq:
     <<: *x-django
     command: ["/app/scripts/run-dramatiq.sh"]
+    depends_on:
+      backend:
+        condition: service_healthy
 
   scheduler:
     <<: *x-django
     command: [ "/app/scripts/run-scheduler.sh" ]
+    depends_on:
+      - dramatiq
 
   gotenberg:
     image: gotenberg/gotenberg:8

facturio/urls.py

@@ -2,6 +2,7 @@ from django.conf.urls.i18n import i18n_patterns
 from django.contrib import admin
 from django.http import HttpRequest
 from django.http import HttpResponse
+from django.http import JsonResponse
 from django.shortcuts import render
 from django.urls import include
 from django.urls import path
@@ -11,7 +12,7 @@ def landing_page(req: HttpRequest) -> HttpResponse:
     return render(req, 'facturio/index.html')
 
 
-urlpatterns = i18n_patterns(
+app_patterns = i18n_patterns(
     path('', landing_page, name='main-page'),
     path('accounts/', include('accounts.urls')),
     path('subjects/', include('subjects.urls')),
@@ -19,3 +20,6 @@ urlpatterns = i18n_patterns(
     path('admin/', admin.site.urls),
     prefix_default_language=False,
 )
+urlpatterns = [
+    path('healthz/', lambda _: JsonResponse(dict(status='Alive'))),
+] + app_patterns

scripts/run.sh

@@ -11,8 +11,8 @@ echo "Compiling messages..."
 echo "Migrating..."
 ./manage.py migrate --no-input
 
-#echo "Checking for errors..."
+echo "Checking for errors..."
-#./manage.py check --deploy --fail-level WARNING
+./manage.py check --deploy --fail-level WARNING
 
 uvicorn \
     --host 0.0.0.0 \