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Users and Roles for DJango App running with Postgres dB in DO droplet
Hi,
I followed both of these document
for setting up our production hosting server but this doesn’t describe about productions apps. The reason why because Postgres uses ‘public’ schema for newly created users. The question I’ve now is what are the correct steps for Users and Roles for postgres users for production based DJango applications or any other applications?
I currently have these settings for our App Database
postgres=# \du
List of roles
Role name | Attributes | Member of
-----------+------------------------------------------------------------+-----------
postgres | Superuser, Create role, Create DB, Replication, Bypass RLS | {}
vikreya | | {}
postgres=# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+---------+---------+-----------------------
postgres | postgres | UTF8 | C.UTF-8 | C.UTF-8 |
template0 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
vikreya | postgres | UTF8 | C.UTF-8 | C.UTF-8 | =Tc/postgres +
| | | | | postgres=CTc/postgres+
| | | | | vikreya=CTc/postgres
(4 rows)
postgres=#
but running our application is throwing errors as follows.
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ python manage.py loaddata vikreya120319afterdroppingcron.json
Installed 82150 object(s) from 1 fixture(s)
(vkenv) shami@ubuntu-webapp-01:~/vkproject$
(vkenv) shami@ubuntu-webapp-01:~/vkproject$
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ python manage.py makemigrations
No changes detected
(vkenv) shami@ubuntu-webapp-01:~/vkproject$
(vkenv) shami@ubuntu-webapp-01:~/vkproject$
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ python manage.py migrate
Operations to perform:
Apply all migrations: admin, auth, contenttypes, pages, sessions
Running migrations:
Applying contenttypes.0002_remove_content_type_name...Traceback (most recent call last):
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.UndefinedColumn: column "name" of relation "django_content_type" does not exist
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 364, in execute
output = self.handle(*args, **options)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 234, in handle
fake_initial=fake_initial,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 245, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/operations/fields.py", line 249, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 535, in alter_field
old_db_params, new_db_params, strict)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/postgresql/schema.py", line 124, in _alter_field
new_db_params, strict,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 685, in _alter_field
params,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 137, in execute
cursor.execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 99, in execute
return super().execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 67, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column "name" of relation "django_content_type" does not exist
$
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ python manage.py loaddata vikreya120319afterdroppingcron.json
Installed 82150 object(s) from 1 fixture(s)
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ python manage.py migrate --fake-initial
Operations to perform:
Apply all migrations: admin, auth, contenttypes, pages, sessions
Running migrations:
Applying contenttypes.0002_remove_content_type_name...Traceback (most recent call last):
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
psycopg2.errors.UndefinedColumn: column "name" of relation "django_content_type" does not exist
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 323, in run_from_argv
self.execute(*args, **cmd_options)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 364, in execute
output = self.handle(*args, **options)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 234, in handle
fake_initial=fake_initial,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 117, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 147, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/executor.py", line 245, in apply_migration
state = migration.apply(state, schema_editor)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/migration.py", line 124, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/migrations/operations/fields.py", line 249, in database_forwards
schema_editor.alter_field(from_model, from_field, to_field)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 535, in alter_field
old_db_params, new_db_params, strict)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/postgresql/schema.py", line 124, in _alter_field
new_db_params, strict,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 685, in _alter_field
params,
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 137, in execute
cursor.execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 99, in execute
return super().execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 67, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 76, in _execute_with_wrappers
return executor(sql, params, many, context)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/home/shami/vkproject/vkenv/lib/python3.6/site-packages/django/db/backends/utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
django.db.utils.ProgrammingError: column "name" of relation "django_content_type" does not exist
(vkenv) shami@ubuntu-webapp-01:~/vkproject$ packet_write_wait: Connection to 206.189.78.157 port 22: Broken pipe
RMs-MacBook-Pro:~ ram.mullapudi$
Best regards
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