I started Kiwi TCMS in Docker (k8s) with Postgresql. It started ok, but when I wanted to run migrations it crashed. I used this docker-compose for inspiration. Log shows problem with connection with MySQL. But I changed configuration for engine. See:
bash-4.2$ KIWI_DB_ENGINE=django.db.backends.postgresql_psycopg2 /Kiwi/manage.py migrate
django.db.backends.postgresql_psycopg2
Traceback (most recent call last):
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/venv/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 227, in get_new_connection
return Database.connect(**conn_params)
File "/venv/lib/python3.6/site-packages/MySQLdb/__init__.py", line 85, in Connect
return Connection(*args, **kwargs)
File "/venv/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
_mysql_exceptions.OperationalError: (2013, "Lost connection to MySQL server at 'reading initial communication packet', system error: 0")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Kiwi/manage.py", line 13, in <module>
execute_from_command_line(sys.argv)
File "/venv/lib/python3.6/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
utility.execute()
File "/venv/lib/python3.6/site-packages/django/core/management/__init__.py", line 375, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/venv/lib/python3.6/site-packages/django/core/management/base.py", line 316, in run_from_argv
self.execute(*args, **cmd_options)
File "/venv/lib/python3.6/site-packages/django/core/management/base.py", line 350, in execute
self.check()
File "/venv/lib/python3.6/site-packages/django/core/management/base.py", line 379, in check
include_deployment_checks=include_deployment_checks,
File "/venv/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 59, in _run_checks
issues = run_checks(tags=[Tags.database])
File "/venv/lib/python3.6/site-packages/django/core/checks/registry.py", line 71, in run_checks
new_errors = check(app_configs=app_configs)
File "/venv/lib/python3.6/site-packages/django/core/checks/database.py", line 10, in check_database_backends
issues.extend(conn.validation.check(**kwargs))
File "/venv/lib/python3.6/site-packages/django/db/backends/mysql/validation.py", line 9, in check
issues.extend(self._check_sql_mode(**kwargs))
File "/venv/lib/python3.6/site-packages/django/db/backends/mysql/validation.py", line 13, in _check_sql_mode
with self.connection.cursor() as cursor:
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 255, in cursor
return self._cursor()
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 232, in _cursor
self.ensure_connection()
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/venv/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/venv/lib/python3.6/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/venv/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 227, in get_new_connection
return Database.connect(**conn_params)
File "/venv/lib/python3.6/site-packages/MySQLdb/__init__.py", line 85, in Connect
return Connection(*args, **kwargs)
File "/venv/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2013, "Lost connection to MySQL server at 'reading initial communication packet', system error: 0")
Any ideas where can be problem please?
So problem was with version of used docker image.
I used docker image tag kiwitcms/kiwi:6.2 and I thought it's the latest release. But it's not. This version(docker image) doesn't have code for changing DB engine. I changed version of docker tag to latest and it works pretty well now.