could not translate host name "postgres" to address: Name or service not known

[huobo90]

Setting up database...
Starting onpremise_postgres_1 ... done
Starting onpremise_smtp_1     ... done
Starting onpremise_redis_1     ... done
Starting onpremise_memcached_1 ... done
02:27:04 [WARNING] sentry.utils.geo: settings.GEOIP_PATH_MMDB not configured.
02:27:07 [INFO] sentry.plugins.github: apps-not-configured
Syncing...
Traceback (most recent call last):
  File "/usr/local/bin/sentry", line 8, in <module>
    sys.exit(main())
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/__init__.py", line 162, in main
    cli(prog_name=get_prog(), obj={}, max_content_width=100)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/decorators.py", line 36, in inner
    return ctx.invoke(f, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/commands/upgrade.py", line 75, in upgrade
    _upgrade(not noinput, traceback, verbosity, not no_repair)
  File "/usr/local/lib/python2.7/site-packages/sentry/runner/commands/upgrade.py", line 30, in _upgrade
    ignore_ghost_migrations=True,
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 159, in call_command
    return klass.execute(*args, **defaults)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
    return self.handle_noargs(**options)
  File "/usr/local/lib/python2.7/site-packages/south/management/commands/syncdb.py", line 119, in handle_noargs
    self.sync_apps(apps_needing_sync, app_name_to_app_map, options)
  File "/usr/local/lib/python2.7/site-packages/south/management/commands/syncdb.py", line 174, in sync_apps
    syncdb.Command().execute(**options)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
    output = self.handle(*args, **options)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 415, in handle
    return self.handle_noargs(**options)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/commands/syncdb.py", line 57, in handle_noargs
    cursor = connection.cursor()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 162, in cursor
    cursor = util.CursorWrapper(self._cursor(), self)
  File "/usr/local/lib/python2.7/site-packages/sentry/db/postgres/decorators.py", line 44, in inner
    return func(self, *args, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/sentry/db/postgres/base.py", line 95, in _cursor
    cursor = super(DatabaseWrapper, self)._cursor()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 132, in _cursor
    self.ensure_connection()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 127, in ensure_connection
    self.connect()
  File "/usr/local/lib/python2.7/site-packages/django/db/utils.py", line 99, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 127, in ensure_connection
    self.connect()
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/__init__.py", line 115, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/usr/local/lib/python2.7/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 115, in get_new_connection
    return Database.connect(**conn_params)
  File "/usr/local/lib/python2.7/site-packages/psycopg2/__init__.py", line 130, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: could not translate host name "postgres" to address: Name or service not known

Cleaning up...

[BYK]

Can you provide more details like which version you are trying (seems like v9 or earlier), your Docker and Docker Compose versions etc.

[BYK]

Closing due to lack of response from the author.