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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.
+              If path is prefixed with ``config://``, the certificate will be
+              pulled from the ceph monitor ``config-key`` database.
+
+: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.
+              If path is prefixed with ``config://``, the certificate will be
+              pulled from the ceph monitor ``config-key`` database.
+
+:Type: String
+:Default: None
+
+``ssl_options``
+
+:Description: Optional colon separated list of ssl context options:
+
+              ``default_workarounds`` Implement various bug workarounds.
+
+              ``no_compression`` Disable compression.
+
+              ``no_sslv2`` Disable SSL v2.
+
+              ``no_sslv3`` Disable SSL v3.
+
+              ``no_tlsv1`` Disable TLS v1.
+
+              ``no_tlsv1_1`` Disable TLS v1.1.
+
+              ``no_tlsv1_2`` Disable TLS v1.2.
+
+              ``single_dh_use`` Always create a new key when using tmp_dh parameters.
+
+:Type: String
+:Default: ``no_sslv2:no_sslv3:no_tlsv1:no_tlsv1_1``
+
+``ssl_ciphers``
+
+:Description: Optional list of one or more cipher strings separated by colons.
+              The format of the string is described in openssl's ciphers(1)
+              manual.
+
+: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
+
+``request_timeout_ms``
+
+:Description: The amount of time in milliseconds that Beast will wait
+              for more incoming data or outgoing data before giving up.
+              Setting this value to 0 will disable timeout.
+
+:Type: Integer
+:Default: ``65000``
+
+``rgw_thread_pool_size``
+
+:Description: Sets the number of threads spawned by Beast to handle
+              incoming HTTP connections. This effectively limits the number
+              of concurrent connections that the frontend can service.
+
+:Type: Integer
+:Default: ``512``
+
+``max_header_size``
+
+:Description: The maximum number of header bytes available for a single request.
+
+:Type: Integer
+:Default: ``16384``
+:Maximum: ``65536``
+
+
+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
+
+
+.. _Config Reference: ../config-ref