self.connection = self.get_new_connection(conn_params) File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 227, in get_new_connection return Database.connect(**conn_params) File "/usr/local/lib/python3.7/site-packages/MySQLdb/__init__.py", line 84, in Connect return Connection(*args, **kwargs) File "/usr/local/lib/python3.7/site-packages/MySQLdb/connections.py", line 166, in __init__ super(Connection, self).__init__(*args, **kwargs2)django.db.utils.OperationalError: (2005, "Unknown MySQL server host 'mysql' (-2)")ERROR: Job failed: exit code 1
