implement ensure_vms_and_db_are_synced in cron task and add default

sender to readme

README.md

@@ -40,6 +40,7 @@ nano .env
 Enter your SMTP credentials like this:
 ```
 MAIL_USERNAME=forest@nullhex.com
+MAIL_DEFAULT_SENDER=forest@nullhex.com
 MAIL_PASSWORD=**************
 ```
 

capsulflask/__init__.py

@@ -21,6 +21,7 @@ app.config.from_mapping(
   SECRET_KEY=os.environ.get("SECRET_KEY", default="dev"),
   VIRTUALIZATION_MODEL=os.environ.get("VIRTUALIZATION_MODEL", default="mock"),
   LOG_LEVEL=os.environ.get("LOG_LEVEL", default="INFO"),
+  ADMIN_EMAIL_ADDRESSES=os.environ.get("ADMIN_EMAIL_ADDRESSES", default="ops@cyberia.club"),
 
   DATABASE_URL=os.environ.get("DATABASE_URL", default="sql://postgres:dev@localhost:5432/postgres"),
   DATABASE_SCHEMA=os.environ.get("DATABASE_SCHEMA", default="public"),

capsulflask/cli.py

@@ -243,5 +243,36 @@ def notify_users_about_account_balance():
 
 
 def ensure_vms_and_db_are_synced():
-  db_ids = get_model().all_vm_ids()
-  #virt_ids = current_app.config["VIRTUALIZATION_MODEL"].
+  db_ids = get_model().all_non_deleted_vm_ids()
+  virt_ids = current_app.config["VIRTUALIZATION_MODEL"].list_ids()
+
+  db_ids_dict = dict()
+  virt_ids_dict = dict()
+
+  for id in db_ids:
+    db_ids_dict[id] = True
+  
+  for id in virt_ids:
+    virt_ids_dict[id] = True
+
+  errors = list()
+
+  for id in db_ids_dict:
+    if id not in virt_ids_dict:
+      errors.append(f"{id} is in the database but not in the virtualization model")
+
+  for id in virt_ids_dict:
+    if id not in db_ids_dict:
+      errors.append(f"{id} is in the virtualization model but not in the database")
+
+  if len(errors) > 0:
+    email_addresses_raw = current_app.config['ADMIN_EMAIL_ADDRESSES'].split(",")
+    email_addresses = list(filter(lambda x: len(x) > 6, map(lambda x: x.strip(), email_addresses_raw ) ))
+    current_app.config["FLASK_MAIL_INSTANCE"].send(
+        Message(
+          "Capsul Consistency Check Failed",
+          body="\n".join(errors),
+          recipients=email_addresses
+        )
+    )
+

capsulflask/console.py

@@ -10,7 +10,6 @@ from flask import session
 from flask import render_template
 from flask import redirect
 from flask import url_for
-from flask_mail import Message
 from werkzeug.exceptions import abort
 from nanoid import generate
 

capsulflask/db_model.py

@@ -33,8 +33,8 @@ class DBModel:
       return email
     return None
 
-  def all_vm_ids(self,):
-    self.cursor.execute("SELECT id FROM vms")
+  def all_non_deleted_vm_ids(self,):
+    self.cursor.execute("SELECT id FROM vms WHERE deleted IS NULL")
     return list(map(lambda x: x[0], self.cursor.fetchall()))
 
   def operating_systems_dict(self,):

capsulflask/virt_model.py

@@ -43,7 +43,7 @@ class MockVirtualization(VirtualizationInterface):
     return VirtualMachine(id, ipv4="1.1.1.1")
 
   def list_ids(self) -> list:
-    return get_model().all_vm_ids()
+    return get_model().all_non_deleted_vm_ids()
 
   def create(self, email: str, id: str, template_image_file_name: str, vcpus: int, memory_mb: int, ssh_public_keys: list):
     validate_capsul_id(id)