HTTP Frontends

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

New in version 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

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

New in version 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