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.. _rgw_frontends:
==============
HTTP Frontends
==============
.. contents::
The Ceph Object Gateway supports two embedded HTTP frontend libraries
that can be configured with ``rgw_frontends``. See `Config Reference`_
for details about the syntax.
Beast
=====
.. versionadded:: Mimic
The ``beast`` frontend uses the Boost.Beast library for HTTP parsing
and the Boost.Asio library for asynchronous network i/o.
Options
-------
``port`` and ``ssl_port``
:Description: Sets the ipv4 & ipv6 listening port number. Can be specified multiple
times as in ``port=80 port=8000``.
:Type: Integer
:Default: ``80``
``endpoint`` and ``ssl_endpoint``
:Description: Sets the listening address in the form ``address[:port]``, where
the address is an IPv4 address string in dotted decimal form, or
an IPv6 address in hexadecimal notation surrounded by square
brackets. Specifying a IPv6 endpoint would listen to v6 only. The
optional port defaults to 80 for ``endpoint`` and 443 for
``ssl_endpoint``. Can be specified multiple times as in
``endpoint=[::1] endpoint=192.168.0.100:8000``.
:Type: Integer
:Default: None
``ssl_certificate``
:Description: Path to the SSL certificate file used for SSL-enabled endpoints.
:Type: String
:Default: None
``ssl_private_key``
:Description: Optional path to the private key file used for SSL-enabled
endpoints. If one is not given, the ``ssl_certificate`` file
is used as the private key.
:Type: String
:Default: None
``tcp_nodelay``
:Description: If set the socket option will disable Nagle's algorithm on
the connection which means that packets will be sent as soon
as possible instead of waiting for a full buffer or timeout to occur.
``1`` Disable Nagel's algorithm for all sockets.
``0`` Keep the default: Nagel's algorithm enabled.
:Type: Integer (0 or 1)
:Default: 0
``max_connection_backlog``
:Description: Optional value to define the maximum size for the queue of
connections waiting to be accepted. If not configured, the value
from ``boost::asio::socket_base::max_connections`` will be used.
:Type: Integer
:Default: None
Civetweb
========
.. versionadded:: Firefly
The ``civetweb`` frontend uses the Civetweb HTTP library, which is a
fork of Mongoose.
Options
-------
``port``
:Description: Sets the listening port number. For SSL-enabled ports, add an
``s`` suffix like ``443s``. To bind a specific IPv4 or IPv6
address, use the form ``address:port``. Multiple endpoints
can either be separated by ``+`` as in ``127.0.0.1:8000+443s``,
or by providing multiple options as in ``port=8000 port=443s``.
:Type: String
:Default: ``7480``
``num_threads``
:Description: Sets the number of threads spawned by Civetweb to handle
incoming HTTP connections. This effectively limits the number
of concurrent connections that the frontend can service.
:Type: Integer
:Default: ``rgw_thread_pool_size``
``request_timeout_ms``
:Description: The amount of time in milliseconds that Civetweb will wait
for more incoming data before giving up.
:Type: Integer
:Default: ``30000``
``ssl_certificate``
:Description: Path to the SSL certificate file used for SSL-enabled ports.
:Type: String
:Default: None
``access_log_file``
:Description: Path to a file for access logs. Either full path, or relative
to the current working directory. If absent (default), then
accesses are not logged.
:Type: String
:Default: ``EMPTY``
``error_log_file``
:Description: Path to a file for error logs. Either full path, or relative
to the current working directory. If absent (default), then
errors are not logged.
:Type: String
:Default: ``EMPTY``
The following is an example of the ``/etc/ceph/ceph.conf`` file with some of these options set: ::
[client.rgw.gateway-node1]
rgw_frontends = civetweb request_timeout_ms=30000 error_log_file=/var/log/radosgw/civetweb.error.log access_log_file=/var/log/radosgw/civetweb.access.log
A complete list of supported options can be found in the `Civetweb User Manual`_.
Generic Options
===============
Some frontend options are generic and supported by all frontends:
``prefix``
:Description: A prefix string that is inserted into the URI of all
requests. For example, a swift-only frontend could supply
a uri prefix of ``/swift``.
:Type: String
:Default: None
.. _Civetweb User Manual: https://civetweb.github.io/civetweb/UserManual.html
.. _Config Reference: ../config-ref
|
