Squashed 'spiffworkflow-backend/' changes from 1092ed111..ab9b5f368

ab9b5f368 Merge pull request #157 from sartography/feature/background_or_not_scheduler
ba002f8a4 do not preload gunicorn w/ burnettk
8516154cf pyl now passes w/ burnettk
dd0566b1a added script to start scheduler in its own process w/ burnettk danfunk
7d66f922f rename environment variable to something sensible.

git-subtree-dir: spiffworkflow-backend
git-subtree-split: ab9b5f368a0b954370e43936a88b2ce9b83dc4cc

bin/boot_server_in_docker

@@ -48,7 +48,6 @@ if [[ "${SPIFFWORKFLOW_BACKEND_RUN_DATA_SETUP:-}" != "false" ]]; then
 fi
 
 export IS_GUNICORN="true"
-export PROCESS_WAITING_MESSAGES="true"
 
 # THIS MUST BE THE LAST COMMAND!
 exec poetry run gunicorn ${additional_args} --bind "0.0.0.0:$port" --workers="$workers" --limit-request-line 8192 --timeout 90 --capture-output --access-logfile '-' --log-level debug wsgi:app

bin/run_server_locally

@@ -28,9 +28,6 @@ export APPLICATION_ROOT="/"
 if [[ -n "${SPIFFWORKFLOW_BACKEND_LOAD_FIXTURE_DATA:-}" ]]; then
   ./bin/boot_server_in_docker
 else
-  if [[ -z "${PROCESS_WAITING_MESSAGES:-}" ]]; then
-    export PROCESS_WAITING_MESSAGES="true"
-  fi
   export FLASK_DEBUG=1
 
   if [[ "${SPIFFWORKFLOW_BACKEND_RUN_DATA_SETUP:-}" != "false" ]]; then

bin/start_blocking_appscheduler.py

@@ -0,0 +1,22 @@
+"""Start the appscheduler in blocking mode."""
+import time
+
+from apscheduler.schedulers.background import BlockingScheduler  # type: ignore
+
+from spiffworkflow_backend import create_app
+from spiffworkflow_backend import start_scheduler
+from spiffworkflow_backend.helpers.db_helper import try_to_connect
+
+
+def main() -> None:
+    """Main."""
+    app = create_app()
+    start_time = time.time()
+    with app.app_context():
+        try_to_connect(start_time)
+
+    start_scheduler(app, BlockingScheduler)
+
+
+if __name__ == "__main__":
+    main()

bin/wait_for_db_to_be_ready.py

@@ -1,27 +1,13 @@
-"""Grabs tickets from csv and makes process instances."""
+"""Wait for db to be ready."""
 import time
 
-import sqlalchemy
-from flask_bpmn.models.db import db
-
-from spiffworkflow_backend import get_hacked_up_app_for_script
-
-
-def try_to_connect(start_time: float) -> None:
-    """Try to connect."""
-    try:
-        db.first_or_404("select 1")
-    except sqlalchemy.exc.DatabaseError as exception:
-        if time.time() - start_time > 15:
-            raise exception
-        else:
-            time.sleep(1)
-            try_to_connect(start_time)
+from spiffworkflow_backend import create_app
+from spiffworkflow_backend.helpers.db_helper import try_to_connect
 
 
 def main() -> None:
     """Main."""
-    app = get_hacked_up_app_for_script()
+    app = create_app()
     start_time = time.time()
     with app.app_context():
         try_to_connect(start_time)

docker-compose.yml

@@ -62,7 +62,7 @@ services:
       - SPIFFWORKFLOW_BACKEND_DATABASE_URI=mysql+mysqlconnector://root:${SPIFFWORKFLOW_BACKEND_MYSQL_ROOT_DATABASE:-my-secret-pw}@localhost:7003/${SPIFFWORKFLOW_BACKEND_DATABASE_NAME:-spiffworkflow_backend_development}
       - BPMN_SPEC_ABSOLUTE_DIR=/app/process_models
       - SPIFFWORKFLOW_BACKEND_LOAD_FIXTURE_DATA=${SPIFFWORKFLOW_BACKEND_LOAD_FIXTURE_DATA:-false}
-      - PROCESS_WAITING_MESSAGES=true
+      - RUN_BACKGROUND_SCHEDULER=true
     ports:
       - "7000:7000"
     network_mode: host

src/spiffworkflow_backend/__init__.py

@@ -7,6 +7,7 @@ import flask.app
 import flask.json
 import sqlalchemy
 from apscheduler.schedulers.background import BackgroundScheduler  # type: ignore
+from apscheduler.schedulers.base import BaseScheduler  # type: ignore
 from flask.json.provider import DefaultJSONProvider
 from flask_bpmn.api.api_error import api_error_blueprint
 from flask_bpmn.models.db import db
@@ -52,9 +53,11 @@ class MyJSONEncoder(DefaultJSONProvider):
         return super().dumps(obj, **kwargs)
 
 
-def start_scheduler(app: flask.app.Flask) -> None:
+def start_scheduler(
+    app: flask.app.Flask, scheduler_class: BaseScheduler = BackgroundScheduler
+) -> None:
     """Start_scheduler."""
-    scheduler = BackgroundScheduler()
+    scheduler = scheduler_class()
     scheduler.add_job(
         BackgroundProcessingService(app).process_message_instances_with_app_context,
         "interval",
@@ -111,7 +114,7 @@ def create_app() -> flask.app.Flask:
 
     app.json = MyJSONEncoder(app)
 
-    if app.config["PROCESS_WAITING_MESSAGES"]:
+    if app.config["RUN_BACKGROUND_SCHEDULER"]:
         start_scheduler(app)
 
     configure_sentry(app)
@@ -137,8 +140,6 @@ def get_hacked_up_app_for_script() -> flask.app.Flask:
         else:
             raise Exception(f"Could not find {full_process_model_path}")
     app = create_app()
-    setup_config(app)
-    configure_sentry(app)
     return app
 
 

src/spiffworkflow_backend/config/default.py

@@ -13,8 +13,8 @@ CORS_ALLOW_ORIGINS = re.split(
     r",\s*", environ.get("CORS_ALLOW_ORIGINS", default=CORS_DEFAULT)
 )
 
-PROCESS_WAITING_MESSAGES = (
-    environ.get("PROCESS_WAITING_MESSAGES", default="false") == "true"
+RUN_BACKGROUND_SCHEDULER = (
+    environ.get("RUN_BACKGROUND_SCHEDULER", default="false") == "true"
 )
 SPIFFWORKFLOW_FRONTEND_URL = environ.get(
     "SPIFFWORKFLOW_FRONTEND_URL", default="http://localhost:7001"

src/spiffworkflow_backend/config/demo.py

@@ -7,3 +7,7 @@ GIT_COMMIT_EMAIL = "demo@example.com"
 SPIFFWORKFLOW_BACKEND_PERMISSIONS_FILE_NAME = environ.get(
     "SPIFFWORKFLOW_BACKEND_PERMISSIONS_FILE_NAME", default="demo.yml"
 )
+
+RUN_BACKGROUND_SCHEDULER = (
+    environ.get("RUN_BACKGROUND_SCHEDULER", default="false") == "true"
+)

src/spiffworkflow_backend/config/development.py

@@ -8,3 +8,7 @@ SPIFFWORKFLOW_BACKEND_PERMISSIONS_FILE_NAME = environ.get(
 SPIFFWORKFLOW_BACKEND_LOG_LEVEL = environ.get(
     "SPIFFWORKFLOW_BACKEND_LOG_LEVEL", default="debug"
 )
+
+RUN_BACKGROUND_SCHEDULER = (
+    environ.get("RUN_BACKGROUND_SCHEDULER", default="true") == "true"
+)

src/spiffworkflow_backend/helpers/db_helper.py

@@ -0,0 +1,16 @@
+"""Db_helper."""
+import sqlalchemy
+from flask_bpmn.models.db import db
+import time
+
+
+def try_to_connect(start_time: float) -> None:
+    """Try to connect."""
+    try:
+        db.first_or_404("select 1")  # type: ignore
+    except sqlalchemy.exc.DatabaseError as exception:
+        if time.time() - start_time > 15:
+            raise exception
+        else:
+            time.sleep(1)
+            try_to_connect(start_time)

src/spiffworkflow_backend/helpers/fixture_data.py

@@ -1 +0,0 @@
-"""Fixture_data."""

src/spiffworkflow_backend/routes/process_api_blueprint.py

@@ -426,7 +426,7 @@ def process_instance_run(
         processor.save()
         ProcessInstanceService.update_task_assignments(processor)
 
-        if not current_app.config["PROCESS_WAITING_MESSAGES"]:
+        if not current_app.config["RUN_BACKGROUND_SCHEDULER"]:
             MessageService.process_message_instances()
 
     process_instance_api = ProcessInstanceService.processor_to_process_instance_api(

src/spiffworkflow_backend/services/process_instance_service.py

@@ -73,8 +73,10 @@ class ProcessInstanceService:
                 process_instance.status = ProcessInstanceStatus.erroring.value
                 db.session.add(process_instance)
                 db.session.commit()
-                error_message = f"Error running waiting task for process_instance {process_instance.id}" + \
-                                f"({process_instance.process_model_identifier}). {str(e)}"
+                error_message = (
+                    f"Error running waiting task for process_instance {process_instance.id}"
+                    + f"({process_instance.process_model_identifier}). {str(e)}"
+                )
                 current_app.logger.error(error_message)
 
     @staticmethod

src/spiffworkflow_backend/services/secret_service.py

@@ -37,9 +37,7 @@ class SecretService:
     ) -> SecretModel:
         """Add_secret."""
         # encrypted_key = self.encrypt_key(key)
-        secret_model = SecretModel(
-            key=key, value=value, user_id=user_id
-        )
+        secret_model = SecretModel(key=key, value=value, user_id=user_id)
         db.session.add(secret_model)
         try:
             db.session.commit()
@@ -81,9 +79,7 @@ class SecretService:
                 db.session.rollback()
                 raise e
         elif create_if_not_exists:
-            SecretService.add_secret(
-                key=key, value=value, user_id=user_id
-            )
+            SecretService.add_secret(key=key, value=value, user_id=user_id)
         else:
             raise ApiError(
                 error_code="update_secret_error",

src/spiffworkflow_backend/services/service_task_service.py

@@ -64,13 +64,9 @@ class ServiceTaskDelegate:
             return proxied_response.text
 
         secret_key = parsed_response["auth"]
-        refreshed_token_set = json.dumps(
-            parsed_response["refreshed_token_set"]
-        )
-        SecretService().update_secret(
-            secret_key, refreshed_token_set, g.user.id
-        )
-        
+        refreshed_token_set = json.dumps(parsed_response["refreshed_token_set"])
+        SecretService().update_secret(secret_key, refreshed_token_set, g.user.id)
+
         return json.dumps(parsed_response["api_response"])