Could not translate host name "postgres" to address using console in docker

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1

Al ejecutar el comando ( docker run --rm -ti tryton/tryton trytond-console -d ) me aparece el siguiente error:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/trytond/backend/postgresql/database.py", line 232, in __new__
    cursor_factory=LoggingCursor)
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 161, in __init__
    self, minconn, maxconn, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 58, in __init__
    self._connect()
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 62, in _connect
    conn = psycopg2.connect(*self._args, **self._kwargs)
  File "/usr/lib/python3/dist-packages/psycopg2/__init__.py", line 130, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not translate host name "postgres" to address: Name or service not known

Traceback (most recent call last):
  File "/usr/local/bin/trytond-console", line 22, in <module>
    console.run(options)
  File "/usr/local/lib/python3.7/dist-packages/trytond/console.py", line 45, in run
    with Transaction().start(db_name, 0, readonly=True):
  File "/usr/local/lib/python3.7/dist-packages/trytond/transaction.py", line 107, in start
    database = backend.Database(database_name).connect()
  File "/usr/local/lib/python3.7/dist-packages/trytond/backend/postgresql/database.py", line 232, in __new__
    cursor_factory=LoggingCursor)
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 161, in __init__
    self, minconn, maxconn, *args, **kwargs)
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 58, in __init__
    self._connect()
  File "/usr/lib/python3/dist-packages/psycopg2/pool.py", line 62, in _connect
    conn = psycopg2.connect(*self._args, **self._kwargs)
  File "/usr/lib/python3/dist-packages/psycopg2/__init__.py", line 130, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not translate host name "postgres" to address: Name or service not known
2

It seems you are running postgres in a separate container. So in order to be able to connect to it you should link it on the commandline. You can do that with:

$ docker run --link tryton-postgres:postgres

Your full command should be:

$ docker run --link tryton-postgres:postgres --rm -ti tryton/tryton trytond-console -d

Make sure tu update tryton-postgres with the name of the container running your postgres service. I just used the default docker configuration names that we use on our docker image, but you may need to alter it if you changed on the configuration.

4

Con los siguientes comandos logré ejecutar el trytond-console en docker:

Comando para escribir el código:
$ docker run --link tryton-postgres:postgres --env DB_PASSWORD=${POSTGRES_PASSWORD} --net tryton --rm -ti <image> trytond-console -d <database_name>

Comando para ejecutar el código desde un archivo:
$ docker run --link tryton-postgres:postgres --env DB_PASSWORD=${POSTGRES_PASSWORD} --net tryton --rm -i <image> trytond-console -d <database_name> < /path/file.py