8.7.2. agent
The following table outlines the options available under the [agent]
group in the /etc/neutron/neutron.conf
file.
Configuration option = Default value | Type | Description |
---|---|---|
| string value | Availability zone of this node |
| string value | Action to be executed when a child process dies |
| integer value | Interval between checks of child process liveness (seconds), use 0 to disable |
| boolean value | Add comments to iptables rules. Set to false to disallow the addition of comments to generated iptables rules that describe each rule’s purpose. System must support the iptables comments module for addition of comments. |
| boolean value | Duplicate every iptables difference calculation to ensure the format being generated matches the format of iptables-save. This option should not be turned on for production systems because it imposes a performance penalty. |
| string value | Location of scripts used to kill external processes. Names of scripts here must follow the pattern: "<process-name>-kill" where <process-name> is name of the process which should be killed using this script. For example, kill script for dnsmasq process should be named "dnsmasq-kill". If path is set to None, then default "kill" command will be used to stop processes. |
| boolean value | Log agent heartbeats |
| floating point value | 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. |
| string value | Root helper application. Use sudo neutron-rootwrap /etc/neutron/rootwrap.conf to use the real root filter facility. Change to sudo to skip the filtering and just run the command directly. |
| string value | Root helper daemon application to use when possible. Use sudo neutron-rootwrap-daemon /etc/neutron/rootwrap.conf to run rootwrap in "daemon mode" which has been reported to improve performance at scale. For more information on running rootwrap in "daemon mode", see: https://docs.openstack.org/oslo.rootwrap/latest/user/usage.html#daemon-mode For the agent which needs to execute commands in Dom0 in the hypervisor of XenServer, this option should be set to xenapi_root_helper, so that it will keep a XenAPI session to pass commands to Dom0. |
| boolean value | Use the root helper when listing the namespaces on a system. This may not be required depending on the security configuration. If the root helper is not required, set this to False for a performance improvement. |