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Zaqar configuration reference docs

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This change adds the basic configuration reference
in the user guide.

It includes the document structure outline according
the OpenStack configuration reference standard and
a list of configuration options present in zaqar.conf
with a description of default values and value types.

Configuration option tables has been generated using
the autogenerate_config_docs tool in openstack-doc-tools
repo. Needed files to easier update this tables in the
near future are located in the autogen folder.

blueprint document-config-options

Change-Id: I17884400f711f6d2723b0774c20e7df4ffb0e812
This commit is contained in:
Victoria Martínez de la Cruz 2014-08-15 10:27:32 -03:00
parent c3151ea051
commit 752c6e1cd3
15 changed files with 988 additions and 0 deletions
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1
doc/user-guide/pom.xml
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@ -9,6 +9,7 @@
<modules>
<module>zaqar-api-ref</module>
<module>zaqar-get-started</module>
<module>zaqar-config-ref</module>
</modules>
<profiles>
<profile>

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doc/user-guide/zaqar-config-ref/autogen/zaqar.flagmappings Normal file
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admin_mode api
auth_strategy authentication
daemon api
debug logging
default_log_levels logging
disable_process_locking api
fatal_deprecations logging
instance_format logging
instance_uuid_format logging
lock_path api
log_config_append logging
log_date_format logging
log_dir logging
log_file logging
log_format logging
logging_context_format_string logging
logging_debug_format_suffix logging
logging_default_format_string logging
logging_exception_prefix logging
memcached_servers auth_token
pooling pooling
publish_errors logging
syslog_log_facility logging
use_stderr logging
use_syslog logging
use_syslog_rfc_format logging
verbose logging
drivers/storage drivers
drivers/transport drivers
drivers:storage:mongodb/database mongodb
drivers:storage:mongodb/max_attempts mongodb
drivers:storage:mongodb/max_reconnect_attempts mongodb
drivers:storage:mongodb/max_retry_jitter mongodb
drivers:storage:mongodb/max_retry_sleep mongodb
drivers:storage:mongodb/partitions mongodb
drivers:storage:mongodb/reconnect_sleep mongodb
drivers:storage:mongodb/ssl_ca_certs mongodb
drivers:storage:mongodb/ssl_cert_reqs mongodb
drivers:storage:mongodb/ssl_certfile mongodb
drivers:storage:mongodb/ssl_keyfile mongodb
drivers:storage:mongodb/uri mongodb
drivers:transport:wsgi/bind wsgi
drivers:transport:wsgi/port wsgi
keystone_authtoken/admin_password auth_token
keystone_authtoken/admin_tenant_name auth_token
keystone_authtoken/admin_token auth_token
keystone_authtoken/admin_user auth_token
keystone_authtoken/auth_admin_prefix auth_token
keystone_authtoken/auth_host auth_token
keystone_authtoken/auth_port auth_token
keystone_authtoken/auth_protocol auth_token
keystone_authtoken/auth_uri auth_token
keystone_authtoken/auth_version auth_token
keystone_authtoken/cache auth_token
keystone_authtoken/cafile auth_token
keystone_authtoken/certfile auth_token
keystone_authtoken/check_revocations_for_cached auth_token
keystone_authtoken/delay_auth_decision auth_token
keystone_authtoken/enforce_token_bind auth_token
keystone_authtoken/hash_algorithms auth_token
keystone_authtoken/http_connect_timeout auth_token
keystone_authtoken/http_request_max_retries auth_token
keystone_authtoken/identity_uri auth_token
keystone_authtoken/include_service_catalog auth_token
keystone_authtoken/insecure auth_token
keystone_authtoken/keyfile auth_token
keystone_authtoken/memcache_secret_key auth_token
keystone_authtoken/memcache_security_strategy auth_token
keystone_authtoken/memcached_servers auth_token
keystone_authtoken/revocation_cache_time auth_token
keystone_authtoken/signing_dir auth_token
keystone_authtoken/token_cache_time auth_token
storage/claim_pipeline storage
storage/message_pipeline storage
storage/queue_pipeline storage
transport/default_claim_grace transport
transport/default_claim_ttl transport
transport/default_message_ttl transport
transport/max_claim_grace transport
transport/max_claim_ttl transport
transport/max_message_size transport
transport/max_message_ttl transport
transport/max_messages_per_claim_or_pop transport
transport/max_messages_per_page transport
transport/max_queue_metadata transport
transport/max_queues_per_page transport

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doc/user-guide/zaqar-config-ref/autogen/zaqar.headers Normal file
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api API
logging Logging
drivers Drivers
transport Transport
storage Storage
wsgi WSGI
mongodb MongoDB
pooling Pooling
authentication Authentication
auth_token Keystone authtoken

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-api.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_api">
<caption>Description of API configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[DEFAULT]</th>
</tr>
<tr>
<td>admin_mode = False</td>
<td>(BoolOpt) Activate privileged endpoints.</td>
</tr>
<tr>
<td>daemon = False</td>
<td>(BoolOpt) Run Zaqar server in the background.</td>
</tr>
<tr>
<td>disable_process_locking = False</td>
<td>(BoolOpt) Enables or disables inter-process locks.</td>
</tr>
<tr>
<td>lock_path = None</td>
<td>(StrOpt) Directory to use for lock files.</td>
</tr>
</tbody>
</table>
</para>

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-auth_token.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_auth_token">
<caption>Description of Keystone authtoken configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[DEFAULT]</th>
</tr>
<tr>
<td>memcached_servers = None</td>
<td>(ListOpt) Memcached servers or None for in process cache.</td>
</tr>
<tr>
<th colspan="2">[keystone_authtoken]</th>
</tr>
<tr>
<td>admin_password = None</td>
<td>(StrOpt) Keystone account password</td>
</tr>
<tr>
<td>admin_tenant_name = admin</td>
<td>(StrOpt) Keystone service account tenant name to validate user tokens</td>
</tr>
<tr>
<td>admin_token = None</td>
<td>(StrOpt) This option is deprecated and may be removed in a future release. Single shared secret with the Keystone configuration used for bootstrapping a Keystone installation, or otherwise bypassing the normal authentication process. This option should not be used, use `admin_user` and `admin_password` instead.</td>
</tr>
<tr>
<td>admin_user = None</td>
<td>(StrOpt) Keystone account username</td>
</tr>
<tr>
<td>auth_admin_prefix = </td>
<td>(StrOpt) Prefix to prepend at the beginning of the path. Deprecated, use identity_uri.</td>
</tr>
<tr>
<td>auth_host = 127.0.0.1</td>
<td>(StrOpt) Host providing the admin Identity API endpoint. Deprecated, use identity_uri.</td>
</tr>
<tr>
<td>auth_port = 35357</td>
<td>(IntOpt) Port of the admin Identity API endpoint. Deprecated, use identity_uri.</td>
</tr>
<tr>
<td>auth_protocol = https</td>
<td>(StrOpt) Protocol of the admin Identity API endpoint (http or https). Deprecated, use identity_uri.</td>
</tr>
<tr>
<td>auth_uri = None</td>
<td>(StrOpt) Complete public Identity API endpoint</td>
</tr>
<tr>
<td>auth_version = None</td>
<td>(StrOpt) API version of the admin Identity API endpoint</td>
</tr>
<tr>
<td>cache = None</td>
<td>(StrOpt) Env key for the swift cache</td>
</tr>
<tr>
<td>cafile = None</td>
<td>(StrOpt) A PEM encoded Certificate Authority to use when verifying HTTPs connections. Defaults to system CAs.</td>
</tr>
<tr>
<td>certfile = None</td>
<td>(StrOpt) Required if Keystone server requires client certificate</td>
</tr>
<tr>
<td>check_revocations_for_cached = False</td>
<td>(BoolOpt) If true, the revocation list will be checked for cached tokens. This requires that PKI tokens are configured on the Keystone server.</td>
</tr>
<tr>
<td>delay_auth_decision = False</td>
<td>(BoolOpt) Do not handle authorization requests within the middleware, but delegate the authorization decision to downstream WSGI components</td>
</tr>
<tr>
<td>enforce_token_bind = permissive</td>
<td>(StrOpt) Used to control the use and type of token binding. Can be set to: "disabled" to not check token binding. "permissive" (default) to validate binding information if the bind type is of a form known to the server and ignore it if not. "strict" like "permissive" but if the bind type is unknown the token will be rejected. "required" any form of token binding is needed to be allowed. Finally the name of a binding method that must be present in tokens.</td>
</tr>
<tr>
<td>hash_algorithms = md5</td>
<td>(ListOpt) Hash algorithms to use for hashing PKI tokens. This may be a single algorithm or multiple. The algorithms are those supported by Python standard hashlib.new(). The hashes will be tried in the order given, so put the preferred one first for performance. The result of the first hash will be stored in the cache. This will typically be set to multiple values only while migrating from a less secure algorithm to a more secure one. Once all the old tokens are expired this option should be set to a single value for better performance.</td>
</tr>
<tr>
<td>http_connect_timeout = None</td>
<td>(BoolOpt) Request timeout value for communicating with Identity API server.</td>
</tr>
<tr>
<td>http_request_max_retries = 3</td>
<td>(IntOpt) How many times are we trying to reconnect when communicating with Identity API Server.</td>
</tr>
<tr>
<td>identity_uri = None</td>
<td>(StrOpt) Complete admin Identity API endpoint. This should specify the unversioned root endpoint e.g. https://localhost:35357/</td>
</tr>
<tr>
<td>include_service_catalog = True</td>
<td>(BoolOpt) (optional) indicate whether to set the X-Service-Catalog header. If False, middleware will not ask for service catalog on token validation and will not set the X-Service-Catalog header.</td>
</tr>
<tr>
<td>insecure = False</td>
<td>(BoolOpt) Verify HTTPS connections.</td>
</tr>
<tr>
<td>keyfile = None</td>
<td>(StrOpt) Required if Keystone server requires client certificate</td>
</tr>
<tr>
<td>memcache_secret_key = None</td>
<td>(StrOpt) (optional, mandatory if memcache_security_strategy is defined) this string is used for key derivation.</td>
</tr>
<tr>
<td>memcache_security_strategy = None</td>
<td>(StrOpt) (optional) if defined, indicate whether token data should be authenticated or authenticated and encrypted. Acceptable values are MAC or ENCRYPT. If MAC, token data is authenticated (with HMAC) in the cache. If ENCRYPT, token data is encrypted and authenticated in the cache. If the value is not one of these options or empty, auth_token will raise an exception on initialization.</td>
</tr>
<tr>
<td>memcached_servers = None</td>
<td>(ListOpt) Optionally specify a list of memcached server(s) to use for caching. If left undefined, tokens will instead be cached in-process.</td>
</tr>
<tr>
<td>revocation_cache_time = 10</td>
<td>(IntOpt) Determines the frequency at which the list of revoked tokens is retrieved from the Identity service (in seconds). A high number of revocation events combined with a low cache duration may significantly reduce performance.</td>
</tr>
<tr>
<td>signing_dir = None</td>
<td>(StrOpt) Directory used to cache files related to PKI tokens</td>
</tr>
<tr>
<td>token_cache_time = 300</td>
<td>(IntOpt) In order to prevent excessive effort spent validating tokens, the middleware caches previously-seen tokens for a configurable duration (in seconds). Set to -1 to disable caching completely.</td>
</tr>
</tbody>
</table>
</para>

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-authentication.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_authentication">
<caption>Description of Authentication configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[DEFAULT]</th>
</tr>
<tr>
<td>auth_strategy = </td>
<td>(StrOpt) Backend to use for authentication. For no auth, keep it empty. Existing strategies: keystone. See also the keystone_authtoken section below</td>
</tr>
</tbody>
</table>
</para>

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-drivers.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_drivers">
<caption>Description of Drivers configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[drivers]</th>
</tr>
<tr>
<td>storage = sqlite</td>
<td>(StrOpt) Storage driver to use.</td>
</tr>
<tr>
<td>transport = wsgi</td>
<td>(StrOpt) Transport driver to use.</td>
</tr>
</tbody>
</table>
</para>

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-logging.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_logging">
<caption>Description of Logging configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[DEFAULT]</th>
</tr>
<tr>
<td>debug = False</td>
<td>(BoolOpt) Print debugging output (set logging level to DEBUG instead of default WARNING level).</td>
</tr>
<tr>
<td>default_log_levels = amqp=WARN, amqplib=WARN, boto=WARN, qpid=WARN, sqlalchemy=WARN, suds=INFO, oslo.messaging=INFO, iso8601=WARN, requests.packages.urllib3.connectionpool=WARN, urllib3.connectionpool=WARN, websocket=WARN</td>
<td>(ListOpt) List of logger=LEVEL pairs.</td>
</tr>
<tr>
<td>fatal_deprecations = False</td>
<td>(BoolOpt) Enables or disables fatal status of deprecations.</td>
</tr>
<tr>
<td>instance_format = "[instance: %(uuid)s] "</td>
<td>(StrOpt) The format for an instance that is passed with the log message.</td>
</tr>
<tr>
<td>instance_uuid_format = "[instance: %(uuid)s] "</td>
<td>(StrOpt) The format for an instance UUID that is passed with the log message.</td>
</tr>
<tr>
<td>log_config_append = None</td>
<td>(StrOpt) The name of a logging configuration file. This file is appended to any existing logging configuration files. For details about logging configuration files, see the Python logging module documentation.</td>
</tr>
<tr>
<td>log_date_format = %Y-%m-%d %H:%M:%S</td>
<td>(StrOpt) Format string for %%(asctime)s in log records. Default: %(default)s .</td>
</tr>
<tr>
<td>log_dir = None</td>
<td>(StrOpt) (Optional) The base directory used for relative --log-file paths.</td>
</tr>
<tr>
<td>log_file = None</td>
<td>(StrOpt) (Optional) Name of log file to output to. If no default is set, logging will go to stdout.</td>
</tr>
<tr>
<td>log_format = None</td>
<td>(StrOpt) DEPRECATED. A logging.Formatter log message format string which may use any of the available logging.LogRecord attributes. This option is deprecated. Please use logging_context_format_string and logging_default_format_string instead.</td>
</tr>
<tr>
<td>logging_context_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(request_id)s %(user_identity)s] %(instance)s%(message)s</td>
<td>(StrOpt) Format string to use for log messages with context.</td>
</tr>
<tr>
<td>logging_debug_format_suffix = %(funcName)s %(pathname)s:%(lineno)d</td>
<td>(StrOpt) Data to append to log format when level is DEBUG.</td>
</tr>
<tr>
<td>logging_default_format_string = %(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s</td>
<td>(StrOpt) Format string to use for log messages without context.</td>
</tr>
<tr>
<td>logging_exception_prefix = %(asctime)s.%(msecs)03d %(process)d TRACE %(name)s %(instance)s</td>
<td>(StrOpt) Prefix each line of exception output with this format.</td>
</tr>
<tr>
<td>publish_errors = False</td>
<td>(BoolOpt) Enables or disables publication of error events.</td>
</tr>
<tr>
<td>syslog_log_facility = LOG_USER</td>
<td>(StrOpt) Syslog facility to receive log lines.</td>
</tr>
<tr>
<td>use_stderr = True</td>
<td>(BoolOpt) Log output to standard error.</td>
</tr>
<tr>
<td>use_syslog = False</td>
<td>(BoolOpt) Use syslog for logging. Existing syslog format is DEPRECATED during I, and will change in J to honor RFC5424.</td>
</tr>
<tr>
<td>use_syslog_rfc_format = False</td>
<td>(BoolOpt) (Optional) Enables or disables syslog rfc5424 format for logging. If enabled, prefixes the MSG part of the syslog message with APP-NAME (RFC5424). The format without the APP-NAME is deprecated in I, and will be removed in J.</td>
</tr>
<tr>
<td>verbose = False</td>
<td>(BoolOpt) Print more verbose output (set logging level to INFO instead of default WARNING level).</td>
</tr>
</tbody>
</table>
</para>

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doc/user-guide/zaqar-config-ref/common/tables/zaqar-mongodb.xml Normal file
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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_mongodb">
<caption>Description of MongoDB configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[drivers:storage:mongodb]</th>
</tr>
<tr>
<td>database = zaqar</td>
<td>(StrOpt) Database name.</td>
</tr>
<tr>
<td>max_attempts = 1000</td>
<td>(IntOpt) Maximum number of times to retry a failed operation. Currently only used for retrying a message post.</td>
</tr>
<tr>
<td>max_reconnect_attempts = 10</td>
<td>(IntOpt) Maximum number of times to retry an operation that failed due to a primary node failover.</td>
</tr>
<tr>
<td>max_retry_jitter = 0.005</td>
<td>(FloatOpt) Maximum jitter interval, to be added to the sleep interval, in order to decrease probability that parallel requests will retry at the same instant.</td>
</tr>
<tr>
<td>max_retry_sleep = 0.1</td>
<td>(FloatOpt) Maximum sleep interval between retries (actual sleep time increases linearly according to number of attempts performed).</td>
</tr>
<tr>
<td>partitions = 2</td>
<td>(IntOpt) Number of databases across which to partition message data, in order to reduce writer lock %. DO NOT change this setting after initial deployment. It MUST remain static. Also, you should not need a large number of partitions to improve performance, esp. if deploying MongoDB on SSD storage.</td>
</tr>
<tr>
<td>reconnect_sleep = 0.02</td>
<td>(FloatOpt) Base sleep interval between attempts to reconnect after a primary node failover. The actual sleep time increases exponentially (power of 2) each time the operation is retried.</td>
</tr>
<tr>
<td>ssl_ca_certs = None</td>
<td>(StrOpt) The ca_certs file contains a set of concatenated "certification authority" certificates, which are used to validate certificates passed from the other end of the connection.</td>
</tr>
<tr>
<td>ssl_cert_reqs = CERT_REQUIRED</td>
<td>(StrOpt) Specifies whether a certificate is required from the other side of the connection, and whether it will be validated if provided. It must be one of the three values ``CERT_NONE``(certificates ignored), ``CERT_OPTIONAL``(not required, but validated if provided), or ``CERT_REQUIRED``(required and validated). If the value of this parameter is not ``CERT_NONE``, then the ``ssl_ca_cert`` parameter must point to a file of CA certificates.</td>
</tr>
<tr>
<td>ssl_certfile = None</td>
<td>(StrOpt) The certificate file used to identify the local connection against mongod.</td>
</tr>
<tr>
<td>ssl_keyfile = None</td>
<td>(StrOpt) The private keyfile used to identify the local connection against mongod. If included with the ``certifle`` then only the ``ssl_certfile`` is needed.</td>
</tr>
<tr>
<td>uri = None</td>
<td>(StrOpt) Mongodb Connection URI. If ssl connection enabled, then ``ssl_keyfile``, ``ssl_certfile``, ``ssl_cert_reqs``, ``ssl_ca_certs`` need to be set accordingly.</td>
</tr>
</tbody>
</table>
</para>

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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_pooling">
<caption>Description of Pooling configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[DEFAULT]</th>
</tr>
<tr>
<td>pooling = False</td>
<td>(BoolOpt) ('Enable pooling across multiple storage backends. ', 'If pooling is enabled, the storage driver ', 'configuration is used to determine where the ', 'catalogue/control plane data is kept.')</td>
</tr>
</tbody>
</table>
</para>

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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_storage">
<caption>Description of Storage configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[storage]</th>
</tr>
<tr>
<td>claim_pipeline = </td>
<td>(ListOpt) Pipeline to use for processing claim operations. This pipeline will be consumed before calling the storage driver's controller methods.</td>
</tr>
<tr>
<td>message_pipeline = </td>
<td>(ListOpt) Pipeline to use for processing message operations. This pipeline will be consumed before calling the storage driver's controller methods.</td>
</tr>
<tr>
<td>queue_pipeline = </td>
<td>(ListOpt) Pipeline to use for processing queue operations. This pipeline will be consumed before calling the storage driver's controller methods.</td>
</tr>
</tbody>
</table>
</para>

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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_transport">
<caption>Description of Transport configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[transport]</th>
</tr>
<tr>
<td>default_claim_grace = 60</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>default_claim_ttl = 300</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>default_message_ttl = 3600</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_claim_grace = 43200</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_claim_ttl = 43200</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_message_size = 262144</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_message_ttl = 1209600</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_messages_per_claim_or_pop = 20</td>
<td>(IntOpt) The maximum number of messages that can be claimed (OR) popped in a single request</td>
</tr>
<tr>
<td>max_messages_per_page = 20</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_queue_metadata = 65536</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
<tr>
<td>max_queues_per_page = 20</td>
<td>(IntOpt) No help text available for this option.</td>
</tr>
</tbody>
</table>
</para>

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<?xml version='1.0' encoding='UTF-8'?>
<para xmlns="http://docbook.org/ns/docbook" version="5.0">
<!-- Warning: Do not edit this file. It is automatically
generated and your changes will be overwritten.
The tool to do so lives in openstack-doc-tools repository. -->
<table rules="all" xml:id="config_table_zaqar_wsgi">
<caption>Description of WSGI configuration options</caption>
<col width="50%"/>
<col width="50%"/>
<thead>
<tr>
<th>Configuration option = Default value</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<th colspan="2">[drivers:transport:wsgi]</th>
</tr>
<tr>
<td>bind = 127.0.0.1</td>
<td>(StrOpt) Address on which the self-hosting server will listen.</td>
</tr>
<tr>
<td>port = 8888</td>
<td>(IntOpt) Port on which the self-hosting server will listen.</td>
</tr>
</tbody>
</table>
</para>

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<?xml version="1.0" encoding="UTF-8"?>
<book xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="5.0" xml:id="os-zaqar-configRef">
<title>Messaging and Notifications API v1 Configuration Reference</title>
<titleabbrev>Messaging and Notifications Configuration Reference</titleabbrev>
<info>
<!-- <copyright>
<year>2013</year>
<year>2014</year>
<holder>OpenStack Foundation</holder>
</copyright> -->
<releaseinfo>API v1</releaseinfo>
<productname>Messaging and Notifications</productname>
<pubdate>2014-08-20</pubdate>
<!--Note that the <productname> text matches the first few words of the title. The build system splits the title into productname + rest of title on the pdf cover.-->
<!--If you leave the <pubdate> element empty, the build system inserts today's date automatically. -->
<legalnotice role="apache2">
<annotation>
<remark>Copyright details are filled in by the build
system.
</remark>
</annotation>
</legalnotice>
<abstract>
<para>This document is intended for software developers interested in deploying
the Messaging and Notifications service.
</para>
</abstract>
<revhistory>
<revision>
<date>2014-08-10</date>
<revdescription>
<para>Initial document for OpenStack incubation.</para>
</revdescription>
</revision>
</revhistory>
</info>
<chapter xml:id="introduction">
<title>Introduction to the Messaging and Notifications service</title>
<para>Zaqar is a multi-tenant, fast, reliable, scalable cloud messaging and notification service.
It allows developers to share data between distributed application components performing different tasks,
without losing messages or requiring each component to be always available.</para>
<para>The service features a ReST API, which developers can use to send messages between various
components of their SaaS and mobile applications, by using a variety of communication patterns.</para>
<para>Underlying this API is an efficient messaging engine designed with scalability and security in mind.</para>
<simplesect>
<title>Key features</title>
<para>The Messaging and Notifications service provides the following key features:</para>
<itemizedlist>
<listitem>
<para>Firewall-friendly, HTTP-based API with Keystone support</para>
</listitem>
<listitem>
<para>Multi-tenant queues based on Keystone project IDs</para>
</listitem>
<listitem>
<para>Support for several common patterns including event broadcasting, task distribution, and point-to-point messaging</para>
</listitem>
<listitem>
<para>Component-based architecture with support for custom backends and message filters</para>
</listitem>
<listitem>
<para>Efficient reference implementation with an eye toward low latency and high throughput (dependent on backend)</para>
</listitem>
<listitem>
<para>Highly-available and horizontally scalable</para>
</listitem>
</itemizedlist>
</simplesect>
<simplesect>
<title>Components</title>
<para>The Messaging and Notifications service contains the following components:</para>
<itemizedlist>
<listitem>
<para><emphasis role="bold">Transport backend</emphasis>. The Messaging and Notifications
service requires the selection of a transport specification responsible of the communication
between the endpoints. In addition to the base driver implementation, the Messaging
and Notifications service also provides the means to add support for other transport mechanisms.
The default option is WSGI.
</para>
</listitem>
<listitem>
<para><emphasis role="bold">Storage backend</emphasis>. The Messaging and Notifications service
depends on a storage engine for message persistence. In addition to the base driver implementation,
the Messaging and Notifications service also provides the means to add support for other
storage solutions. The default storage option is MongoDB.
</para>
</listitem>
</itemizedlist>
</simplesect>
</chapter>
<chapter xml:id="configuration">
<title>Configure the Messaging and Notifications service</title>
<section xml:id="configuration-overview">
<title>Overview of zaqar.conf</title>
<para>The <filename>zaqar.conf</filename>
configuration file uses an <link xlink:href="https://en.wikipedia.org/wiki/INI_file">INI file format</link>
as explained in the
<link xlink:href="http://docs.openstack.org/trunk/config-reference/content/config_format.html">"Configuration file format"</link>
section of the <link xlink:href="http://docs.openstack.org/trunk/config-reference">OpenStack Configuration Reference</link>.
</para>
<para>This file is located in <literal>/etc/zaqar</literal> within the Zaqar folder.
When you manually install the Messaging and Notifications service,
you must generate the zaqar.conf file using the config samples
generator located in <literal>tools/config/generate_sample.sh</literal>
and customize it according to your preferences.</para>
<para>Example usage of the sample generator script:
<programlisting>
$ generate_sample.sh -b /opt/stack/zaqar -p zaqar -o /etc/zaqar
</programlisting>
</para>
<simplesect>
<title>Sections</title>
<para>Configuration options are grouped by section. The
Message Queueing configuration file supports the following sections:
<variablelist>
<varlistentry>
<term>
<literal>[DEFAULT]</literal>
</term>
<listitem>
<para>Contains most configuration options. If
the documentation for a configuration
option does not specify its section,
assume that it appears in this
section.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[drivers]</literal>
</term>
<listitem>
<para>Select drivers.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[transport]</literal>
</term>
<listitem>
<para>Configures general transport options.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[drivers:transport:wsgi]</literal>
</term>
<listitem>
<para>Configures the WSGI driver.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[storage]</literal>
</term>
<listitem>
<para>Configures general storage options.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[drivers:storage:mongodb]</literal>
</term>
<listitem>
<para>Configures the MongoDB driver.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>
<literal>[keystone_authtoken]</literal>
</term>
<listitem>
<para>Configures the Keystone Identity Service endpoint.</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</simplesect>
</section>
<section xml:id="config-api">
<title>API options</title>
<para>The Messaging and Notifications service can be configured by changing the following
parameters:
</para>
<xi:include href="common/tables/zaqar-api.xml"/>
</section>
<section xml:id="config-logging">
<title>Configure logging</title>
<para>You can use the zaqar.conf file to configure where the Messaging and Notifications service logs events,
the logging levels and log formats.</para>
<para>To customize logging for the Messaging and Notifications service, use the following configuration
settings in the [DEFAULT] section:</para>
<xi:include href="common/tables/zaqar-logging.xml"/>
</section>
<section xml:id="config-drivers">
<title>Configure drivers</title>
<para>The transport and storage drivers used by the Messaging and Notifications service
are determined by the following options:</para>
<xi:include href="common/tables/zaqar-drivers.xml"/>
</section>
<section xml:id="config-storage">
<title>Configure general storage driver options</title>
<para>The Messaging and Notifications service supports several different backends for storing
messages and their metadata. The recommended storage backend is MongoDB.
The following tables detail the available options:</para>
<xi:include href="common/tables/zaqar-storage.xml"/>
<xi:include href="common/tables/zaqar-mongodb.xml"/>
</section>
<section xml:id="config-transport">
<title>Configure general transport driver options</title>
<para>The Messaging and Notifications service uses WSGI as the default transport mechanism.
The following tables detail the available options:</para>
<xi:include href="common/tables/zaqar-transport.xml"/>
<xi:include href="common/tables/zaqar-wsgi.xml"/>
</section>
<section xml:id="config-auth">
<title>Configure authentication and authorization</title>
<para>All requests to the API may only be performed by an authenticated agent.</para>
<para>The preferred authentication system is the OpenStack Identity service, code-named Keystone.</para>
<para>To authenticate, an agent issues an authentication request to a Keystone Identity Service endpoint.
In response to valid credentials, Keystone responds with an auth token and a service catalog that
contains a list of all services and endpoints available for the given token.</para>
<para>Multiple endpoints may be returned for Zaqar according to physical locations
and performance/availability characteristics of different deployments.</para>
<para>Normally, Keystone middleware provides the <literal>X-Project-Id</literal> header based on the
auth token submitted by the Zaqar client.</para>
<para>For this to work, clients must specify a valid auth token in the <literal>X-Auth-Token</literal>
header for each request to the Zaqar API. The API validates auth tokens against Keystone before
servicing each request</para>
<para>If auth is not enabled, clients must provide the <literal>X-Project-Id</literal> header themselves.</para>
<para>Configure the authentication and authorization strategy through these options:</para>
<xi:include href="common/tables/zaqar-authentication.xml"/>
<xi:include href="common/tables/zaqar-auth_token.xml"/>
</section>
<section xml:id="config-pooling">
<title>Configure pooling</title>
<para>The Messaging and Notifications service supports pooling.</para>
<para>
Pooling aims to make Zaqar highly scalable without losing any of its flexibility
by allowing users to use multiple-backends.
</para>
<para>You can enable and configure pooling with the following options:</para>
<xi:include href="common/tables/zaqar-pooling.xml"/>
</section>
<section xml:id="config-samples">
<title>Messaging and Notifications Service configuration files samples</title>
<para>This example shows the default zaqar.conf file:</para>
<programlisting language="ini">
<xi:include parse="text" href="http://git.openstack.org/cgit/openstack/zaqar/plain/etc/zaqar.conf.sample"/>
</programlisting>
</section>
</chapter>
</book>

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<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<parent>
<groupId>org.openstack.docs</groupId>
<artifactId>parent-pom</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>zaqar-config-ref</artifactId>
<packaging>jar</packaging>
<name>OpenStack Messaging and Notifications API v1 Configuration Reference</name>
<properties>
<!-- This is set by Jenkins according to the branch. -->
<release.path.name>local</release.path.name>
<comments.enabled>1</comments.enabled>
</properties>
<build>
<plugins>
<plugin>
<groupId>com.rackspace.cloud.api</groupId>
<artifactId>clouddocs-maven-plugin</artifactId>
<executions>
<!-- Configuration for OpenStack Message Queuing API v1 -->
<execution>
<id>generate-webhelp</id>
<goals>
<goal>generate-webhelp</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<includes> os-zaqar-configRef.xml </includes>
<generateToc> appendix toc,title
article/appendix nop
article toc,title
book toc,title,figure,table,example,equation
chapter toc,title
section toc
part toc,title
qandadiv toc
qandaset toc
reference toc,title
set toc,title </generateToc>
<webhelpDirname>zaqar-config-ref</webhelpDirname>
<pdfFilenameBase>zaqar-config-ref</pdfFilenameBase>
</configuration>
</execution>
</executions>
<configuration>
<enableDisqus>1</enableDisqus>
<enableGoogleAnalytics>0</enableGoogleAnalytics>
<branding>builtforOpenStack</branding>
<showXslMessages>true</showXslMessages>
<chapterAutolabel>1</chapterAutolabel>
<sectionAutolabel>0</sectionAutolabel>
<tocSectionDepth>1</tocSectionDepth>
<formalProcedures>0</formalProcedures>
<highlightSource>false</highlightSource>
<xincludeSupported>true</xincludeSupported>
<sourceDirectory>.</sourceDirectory>
<canonicalUrlBase>http://docs.openstack.org/zaqar-config-ref/content/</canonicalUrlBase>
</configuration>
</plugin>
</plugins>
</build>
</project>