allow deleting external applications

areas/apps/models.py

@@ -25,7 +25,7 @@ class App(db.Model):
     id = db.Column(Integer, primary_key=True)
     name = db.Column(String(length=64))
     slug = db.Column(String(length=64), unique=True)
-    external = db.Column(Boolean, unique=False, nullable=False, default=True, server_default='0')
+    external = db.Column(Boolean, unique=False, nullable=False, server_default='0')
     # The URL is only stored in the DB for external applications; otherwise the
     # URL is stored in a configmap (see get_url)
     url = db.Column(String(length=128), unique=False)
@@ -229,6 +229,12 @@ class AppStatus():  # pylint: disable=too-few-public-methods
     :type app: App
     """
     def __init__(self, app):
+        if app.external:
+            self.installed = True
+            self.ready = True
+            self.message = "App is external"
+            return
+
         kustomization = app.kustomization
         if kustomization is not None and "status" in kustomization:
             ks_ready, ks_message = AppStatus.check_condition(kustomization['status'])

cliapp/cliapp/cli.py

@@ -105,12 +105,13 @@ def delete_app(slug):
         return
 
     app_status = app_obj.get_status()
-    if not app_status.installed:
+    if app_status.installed and not app_obj.external:
-        app_obj.delete()
-        current_app.logger.info("Success.")
-    else:
         current_app.logger.info("Can not delete installed application, run"
             " 'uninstall' first")
+        return
+
+    app_obj.delete()
+    current_app.logger.info("Success.")
 
 
 @app_cli.command(