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@@ -163,11 +163,9 @@ Example `enabled_plugins`
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### Additional Configuration
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-If additional configuration is required, it is recommended to use the `RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS` environment variable, whose syntax is described [in section 7.8 ("Configuring an Application") of the Erlang OTP Design Principles User's Guide](http://erlang.org/doc/design_principles/applications.html#id81887) (the appropriate value for `-ApplName` is `-rabbit`).
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+If additional configuration is required, it is recommended to supply an appropriate `/etc/rabbitmq/rabbitmq.conf` file (see [the "Configuration File(s)" section of the RabbitMQ documentation for more details](https://www.rabbitmq.com/configure.html#configuration-files)), for example via bind-mount, [Docker Configs](https://docs.docker.com/engine/swarm/configs/), or a short `Dockerfile` with a `COPY` instruction.
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-For example, configuring [`log_levels`](https://www.rabbitmq.com/configure.html#config-items) would look something like `-e RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS="-rabbit log_levels [{connection,error}]"`.
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-
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-Additional configuration keys would be specified as a list. For example, configuring both [`log_levels`](https://www.rabbitmq.com/configure.html#config-items) and [`auth_backends`](https://www.rabbitmq.com/ldap.html#overview) would look something like `-e RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS="-rabbit log_levels [{connection,error}] auth_backends [rabbit_auth_backend_ldap]"`.
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+Alternatively, it is possible to use the `RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS` environment variable, whose syntax is described [in section 7.8 ("Configuring an Application") of the Erlang OTP Design Principles User's Guide](http://erlang.org/doc/design_principles/applications.html#id81887) (the appropriate value for `-ApplName` is `-rabbit`), but this method is much harder to get right than the configuration file format suggested above. For example, configuring [`log_levels`](https://www.rabbitmq.com/configure.html#config-items) would look something like `-e RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS="-rabbit log_levels [{connection,error}]"`. Additional configuration keys would be specified as a list. For example, configuring both [`log_levels`](https://www.rabbitmq.com/configure.html#config-items) and [`auth_backends`](https://www.rabbitmq.com/ldap.html#overview) would look something like `-e RABBITMQ_SERVER_ADDITIONAL_ERL_ARGS="-rabbit log_levels [{connection,error}] auth_backends [rabbit_auth_backend_ldap]"`.
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## Connecting to the daemon
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Tianon Gravi