Training labs parser will allow us to automatically parse RST code
to BASH. This BASH code in turn will be invoked by install-guides for
validating the install guides. To provide the correct information to the
parser for generating BASH code, there are a few changes required to the
RST syntax.
Introduces the following changes to RST syntax:
  - `.. end`
    This tag provides information for the parser to stop extracting the
    given block which could be code, file injection or configuration
    file edit.
  - `.. endonly`
    This tag provides information for the parser with the correct
    distro-switch logic for identifying distro-specific code.
    For .. only:: tags, it is better to avoid nesting. If nesting
    is not avoidable then it is preferable to add the .. endonly
    tag to close the outer block immediately.
  - Extra new lines in code-blocks
    Some commands in the code-blocks provides the expected output of the
    given command. This is not a BASH command which we want to run but
    rather some visual niceness for the users. These new lines provides
    the parser information to identify the end of the command. This
    basic logic would be something similar to find '\r\n' which at least
    for python means new empty line.
  - `mysql>`
    Introducing this operator for mysql commands. This could potentially
    be changed to `pgsql>` or similar for other SQL type databases.
    This allows the parser to identify mysql commands and then run
    them in mysql instead of in 'sh' or 'bash'.
  - `.. path`
    Introducing this tag to provide the parser with the information with
    the path of the configuration file. Using the description text for
    the same is not reliable since the description text may not be
    consistent.
This commit should ideally introduce all the syntax changes required for
the parser to convert the code-blocks in here to BASH code. These
changes should have no impact on the HTML output of the RST code.
Change-Id: I47830b1bc61c8b1a0f3350932d15aa3ce88fa672
		
	
		
			
				
	
	
	
		
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	Networking Option 2: Self-service networks
Configure the Networking components on a compute node.
Configure the Linux bridge agent
The Linux bridge agent builds layer-2 (bridging and switching) virtual networking infrastructure for instances and handles security groups.
- Edit the 
/etc/neutron/plugins/ml2/linuxbridge_agent.inifile and complete the following actions:In the
[linux_bridge]section, map the provider virtual network to the provider physical network interface:[linux_bridge] physical_interface_mappings = provider:PROVIDER_INTERFACE_NAMEReplace
PROVIDER_INTERFACE_NAMEwith the name of the underlying provider physical network interface. Seeenvironment-networkingfor more information.In the
[vxlan]section, enable VXLAN overlay networks, configure the IP address of the physical network interface that handles overlay networks, and enable layer-2 population:[vxlan] enable_vxlan = True local_ip = OVERLAY_INTERFACE_IP_ADDRESS l2_population = TrueReplace
OVERLAY_INTERFACE_IP_ADDRESSwith the IP address of the underlying physical network interface that handles overlay networks. The example architecture uses the management interface to tunnel traffic to the other nodes. Therefore, replaceOVERLAY_INTERFACE_IP_ADDRESSwith the management IP address of the compute node. Seeenvironment-networkingfor more information.In the
[securitygroup]section, enable security groups and configure the Linux bridgeiptablesfirewall driver:[securitygroup] ... enable_security_group = True firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
 
Return to Networking compute node configuration <neutron-compute-compute>.