Fix celery beat terminal filling startup and operational 5 second logs

nautobot-app-chatops/{{ cookiecutter.project_slug }}/development/check_migrations.py

@@ -0,0 +1 @@
+nautobot-app/{{ cookiecutter.project_slug }}/development/check_migrations.py

nautobot-app-ssot/{{ cookiecutter.project_slug }}/development/check_migrations.py

@@ -0,0 +1 @@
+nautobot-app/{{ cookiecutter.project_slug }}/development/check_migrations.py

nautobot-app/{{ cookiecutter.project_slug }}/development/check_migrations.py

@@ -0,0 +1,20 @@
+"""This is a helper script meant for celery beat to check for migrations. The beat
+error log is too large and hides from your terminal the most common case in which you
+will have issues with the migrations or around the same time migrations are running."""
+
+import time
+from django.db import ProgrammingError
+import nautobot
+
+nautobot.setup()
+
+from nautobot.extras.models.jobs import ScheduledJob
+
+while True:
+    try:
+        list(ScheduledJob.objects.all())
+        print("Migrations are complete, proceeding.")
+        break
+    except ProgrammingError:
+        print("Migrations not complete yet, retrying in 5 seconds...")
+        time.sleep(5)  # Wait for a few seconds before retrying

nautobot-app/{{ cookiecutter.project_slug }}/development/docker-compose.dev.yml

@@ -41,10 +41,13 @@ services:
     entrypoint:
       - "sh"
       - "-c"  # this is to evaluate the $NAUTOBOT_LOG_LEVEL from the env
-      - "watchmedo auto-restart --directory './' --pattern '*.py' --recursive -- nautobot-server celery beat -l $$NAUTOBOT_LOG_LEVEL"  ## $$ because of docker-compose
+      - |
+        python /opt/nautobot/check_migrations.py && \
+        "watchmedo auto-restart --directory './' --pattern '*.py' --recursive -- nautobot-server celery beat -l WARNING"
     volumes:
       - "./nautobot_config.py:/opt/nautobot/nautobot_config.py"
       - "../:/source"
+      - "./check_migrations.py:/opt/nautobot/check_migrations.py"
 # To expose postgres or redis to the host uncomment the following
 # postgres:
 #   ports: