dhcp_agent.ini¶
DEFAULT¶
- ovs_integration_bridge¶
- Type:
string
- Default:
br-int
Name of Open vSwitch bridge to use
Warning
This option is deprecated for removal. Its value may be silently ignored in the future.
- Reason:
This variable is a duplicate of OVS.integration_bridge. To be removed in W.
- ovs_use_veth¶
- Type:
boolean
- Default:
False
Uses veth for an OVS interface or not. Support kernels with limited namespace support (e.g. RHEL 6.5) and rate limiting on router’s gateway port so long as ovs_use_veth is set to True.
- interface_driver¶
- Type:
string
- Default:
<None>
The driver used to manage virtual interfaces.
- rpc_response_max_timeout¶
- Type:
integer
- Default:
600
Maximum seconds to wait for a response from an RPC call.
- resync_interval¶
- Type:
integer
- Default:
5
The DHCP agent will resync its state with Neutron to recover from any transient notification or RPC errors. The interval is the maximum number of seconds between attempts. The resync can be done more often based on the events triggered.
- resync_throttle¶
- Type:
integer
- Default:
1
Throttle the number of resync state events between the local DHCP state and Neutron to only once per ‘resync_throttle’ seconds. The value of throttle introduces a minimum interval between resync state events. Otherwise the resync may end up in a busy-loop. The value must be less than resync_interval.
- dhcp_driver¶
- Type:
string
- Default:
neutron.agent.linux.dhcp.Dnsmasq
The driver used to manage the DHCP server.
- enable_isolated_metadata¶
- Type:
boolean
- Default:
False
The DHCP server can assist with providing metadata support on isolated networks. Setting this value to True will cause the DHCP server to append specific host routes to the DHCP request. The metadata service will only be activated when the subnet does not contain any router port. The guest instance must be configured to request host routes via DHCP (Option 121). This option does not have any effect when force_metadata is set to True.
- force_metadata¶
- Type:
boolean
- Default:
False
In some cases the Neutron router is not present to provide the metadata IP but the DHCP server can be used to provide this info. Setting this value will force the DHCP server to append specific host routes to the DHCP request. If this option is set, then the metadata service will be activated for all of the networks.
- enable_metadata_network¶
- Type:
boolean
- Default:
False
Allows for serving metadata requests coming from a dedicated metadata access network whose CIDR is 169.254.169.254/16 (or larger prefix), and is connected to a Neutron router from which the VMs send metadata:1 request. In this case DHCP Option 121 will not be injected in VMs, as they will be able to reach 169.254.169.254 through a router. This option requires enable_isolated_metadata = True.
- num_sync_threads¶
- Type:
integer
- Default:
4
Number of threads to use during sync process. Should not exceed connection pool size configured on server.
- bulk_reload_interval¶
- Type:
integer
- Default:
0- Minimum Value:
0
Time to sleep between reloading the DHCP allocations. This will only be invoked if the value is not 0. If a network has N updates in X seconds then it will reload once and not N times.
- dhcp_confs¶
- Type:
string
- Default:
$state_path/dhcp
Location to store DHCP server config files.
- dnsmasq_config_file¶
- Type:
string
- Default:
''
Override the default dnsmasq settings with this file.
- dnsmasq_dns_servers¶
- Type:
list
- Default:
[]
Comma-separated list of the DNS servers which will be used as forwarders.
- dnsmasq_base_log_dir¶
- Type:
string
- Default:
<None>
Base log dir for dnsmasq logging. The log contains DHCP and DNS log information and is useful for debugging issues with either DHCP or DNS. If this section is null, disable dnsmasq log.
- dnsmasq_local_resolv¶
- Type:
boolean
- Default:
False
Enables the dnsmasq service to provide name resolution for instances via DNS resolvers on the host running the DHCP agent. Effectively removes the ‘–no-resolv’ option from the dnsmasq process arguments. Adding custom DNS resolvers to the ‘dnsmasq_dns_servers’ option disables this feature.
- dnsmasq_lease_max¶
- Type:
integer
- Default:
16777216
Limit number of leases to prevent a denial-of-service.
- dhcp_broadcast_reply¶
- Type:
boolean
- Default:
False
Use broadcast in DHCP replies.
- dnsmasq_enable_addr6_list¶
- Type:
boolean
- Default:
False
Enable dhcp-host entry with list of addresses when port has multiple IPv6 addresses in the same subnet.
- debug¶
- Type:
boolean
- Default:
False- Mutable:
This option can be changed without restarting.
If set to true, the logging level will be set to DEBUG instead of the default INFO level.
- log_config_append¶
- Type:
string
- Default:
<None>- Mutable:
This option can be changed without restarting.
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. Note that when logging configuration files are used then all logging configuration is set in the configuration file and other logging configuration options are ignored (for example, log-date-format).
Deprecated Variations¶ Group
Name
DEFAULT
log-config
DEFAULT
log_config
- log_date_format¶
- Type:
string
- Default:
%Y-%m-%d %H:%M:%S
Defines the format string for %(asctime)s in log records. Default: the value above . This option is ignored if log_config_append is set.
- log_file¶
- Type:
string
- Default:
<None>
(Optional) Name of log file to send logging output to. If no default is set, logging will go to stderr as defined by use_stderr. This option is ignored if log_config_append is set.
Deprecated Variations¶ Group
Name
DEFAULT
logfile
- log_dir¶
- Type:
string
- Default:
<None>
(Optional) The base directory used for relative log_file paths. This option is ignored if log_config_append is set.
Deprecated Variations¶ Group
Name
DEFAULT
logdir
- watch_log_file¶
- Type:
boolean
- Default:
False
Uses logging handler designed to watch file system. When log file is moved or removed this handler will open a new log file with specified path instantaneously. It makes sense only if log_file option is specified and Linux platform is used. This option is ignored if log_config_append is set.
- use_syslog¶
- Type:
boolean
- Default:
False
Use syslog for logging. Existing syslog format is DEPRECATED and will be changed later to honor RFC5424. This option is ignored if log_config_append is set.
- use_journal¶
- Type:
boolean
- Default:
False
Enable journald for logging. If running in a systemd environment you may wish to enable journal support. Doing so will use the journal native protocol which includes structured metadata in addition to log messages.This option is ignored if log_config_append is set.
- syslog_log_facility¶
- Type:
string
- Default:
LOG_USER
Syslog facility to receive log lines. This option is ignored if log_config_append is set.
- use_json¶
- Type:
boolean
- Default:
False
Use JSON formatting for logging. This option is ignored if log_config_append is set.
- use_stderr¶
- Type:
boolean
- Default:
False
Log output to standard error. This option is ignored if log_config_append is set.
- use_eventlog¶
- Type:
boolean
- Default:
False
Log output to Windows Event Log.
- log_rotate_interval¶
- Type:
integer
- Default:
1
The amount of time before the log files are rotated. This option is ignored unless log_rotation_type is set to “interval”.
- log_rotate_interval_type¶
- Type:
string
- Default:
days- Valid Values:
Seconds, Minutes, Hours, Days, Weekday, Midnight
Rotation interval type. The time of the last file change (or the time when the service was started) is used when scheduling the next rotation.
- max_logfile_count¶
- Type:
integer
- Default:
30
Maximum number of rotated log files.
- max_logfile_size_mb¶
- Type:
integer
- Default:
200
Log file maximum size in MB. This option is ignored if “log_rotation_type” is not set to “size”.
- log_rotation_type¶
- Type:
string
- Default:
none- Valid Values:
interval, size, none
Log rotation type.
Possible values
- interval
Rotate logs at predefined time intervals.
- size
Rotate logs once they reach a predefined size.
- none
Do not rotate log files.
- logging_context_format_string¶
- Type:
string
- Default:
%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [%(global_request_id)s %(request_id)s %(user_identity)s] %(instance)s%(message)s
Format string to use for log messages with context. Used by oslo_log.formatters.ContextFormatter
- logging_default_format_string¶
- Type:
string
- Default:
%(asctime)s.%(msecs)03d %(process)d %(levelname)s %(name)s [-] %(instance)s%(message)s
Format string to use for log messages when context is undefined. Used by oslo_log.formatters.ContextFormatter
- logging_debug_format_suffix¶
- Type:
string
- Default:
%(funcName)s %(pathname)s:%(lineno)d
Additional data to append to log message when logging level for the message is DEBUG. Used by oslo_log.formatters.ContextFormatter
- logging_exception_prefix¶
- Type:
string
- Default:
%(asctime)s.%(msecs)03d %(process)d ERROR %(name)s %(instance)s
Prefix each line of exception output with this format. Used by oslo_log.formatters.ContextFormatter
- logging_user_identity_format¶
- Type:
string
- Default:
%(user)s %(project)s %(domain)s %(system_scope)s %(user_domain)s %(project_domain)s
Defines the format string for %(user_identity)s that is used in logging_context_format_string. Used by oslo_log.formatters.ContextFormatter
- default_log_levels¶
- Type:
list
- Default:
['amqp=WARN', 'amqplib=WARN', 'boto=WARN', 'qpid=WARN', 'sqlalchemy=WARN', 'suds=INFO', 'oslo.messaging=INFO', 'oslo_messaging=INFO', 'iso8601=WARN', 'requests.packages.urllib3.connectionpool=WARN', 'urllib3.connectionpool=WARN', 'websocket=WARN', 'requests.packages.urllib3.util.retry=WARN', 'urllib3.util.retry=WARN', 'keystonemiddleware=WARN', 'routes.middleware=WARN', 'stevedore=WARN', 'taskflow=WARN', 'keystoneauth=WARN', 'oslo.cache=INFO', 'oslo_policy=INFO', 'dogpile.core.dogpile=INFO']
List of package logging levels in logger=LEVEL pairs. This option is ignored if log_config_append is set.
- publish_errors¶
- Type:
boolean
- Default:
False
Enables or disables publication of error events.
- instance_format¶
- Type:
string
- Default:
"[instance: %(uuid)s] "
The format for an instance that is passed with the log message.
- instance_uuid_format¶
- Type:
string
- Default:
"[instance: %(uuid)s] "
The format for an instance UUID that is passed with the log message.
- rate_limit_interval¶
- Type:
integer
- Default:
0
Interval, number of seconds, of log rate limiting.
- rate_limit_burst¶
- Type:
integer
- Default:
0
Maximum number of logged messages per rate_limit_interval.
- rate_limit_except_level¶
- Type:
string
- Default:
CRITICAL
Log level name used by rate limiting: CRITICAL, ERROR, INFO, WARNING, DEBUG or empty string. Logs with level greater or equal to rate_limit_except_level are not filtered. An empty string means that all levels are filtered.
- fatal_deprecations¶
- Type:
boolean
- Default:
False
Enables or disables fatal status of deprecations.
agent¶
- availability_zone¶
- Type:
string
- Default:
nova
Availability zone of this node
- report_interval¶
- Type:
floating point
- Default:
30
Seconds between nodes reporting state to server; should be less than agent_down_time, best if it is half or less than agent_down_time.
- log_agent_heartbeats¶
- Type:
boolean
- Default:
False
Log agent heartbeats
ovs¶
- ovsdb_connection¶
- Type:
string
- Default:
tcp:127.0.0.1:6640
The connection string for the OVSDB backend. Will be used for all OVSDB commands and by ovsdb-client when monitoring
- ssl_key_file¶
- Type:
string
- Default:
<None>
The SSL private key file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection
- ssl_cert_file¶
- Type:
string
- Default:
<None>
The SSL certificate file to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection
- ssl_ca_cert_file¶
- Type:
string
- Default:
<None>
The Certificate Authority (CA) certificate to use when interacting with OVSDB. Required when using an “ssl:” prefixed ovsdb_connection
- ovsdb_debug¶
- Type:
boolean
- Default:
False
Enable OVSDB debug logs
- ovsdb_timeout¶
- Type:
integer
- Default:
10
Timeout in seconds for OVSDB commands. If the timeout expires, OVSDB commands will fail with ALARMCLOCK error.
- bridge_mac_table_size¶
- Type:
integer
- Default:
50000
The maximum number of MAC addresses to learn on a bridge managed by the Neutron OVS agent. Values outside a reasonable range (10 to 1,000,000) might be overridden by Open vSwitch according to the documentation.
- igmp_snooping_enable¶
- Type:
boolean
- Default:
False
Enable IGMP snooping for integration bridge. If this option is set to True, support for Internet Group Management Protocol (IGMP) is enabled in integration bridge. Setting this option to True will also enable the Open vSwitch mcast-snooping-disable-flood-unregistered flag. This option will disable flooding of unregistered multicast packets to all ports. The switch will send unregistered multicast packets only to ports connected to multicast routers.
