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Difference between revisions of "Meetings/Neutron blueprint ovs-firewall-driver"

(Meeting Dec 16, 2013)
(Meeting Dec 16, 2013)
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* Design decisions
 
* Design decisions
 
** openvswitch statelessness and security groups frontend API and DB: https://etherpad.openstack.org/p/ovs-firewall-driver-stateless-2
 
** openvswitch statelessness and security groups frontend API and DB: https://etherpad.openstack.org/p/ovs-firewall-driver-stateless-2
 +
* Overview of prototype
 +
** all security group flows on integration bridge
 +
** currently all on table 0, thinking about multi-table setup
 +
** prototype tested on flat network setup; should work on other network types as-is since the tunnel OVS flows just pass the data to the integration bridge
 +
** still a WIP:
 +
*** working on adding IPv6 flows
 +
*** working on adding multiple ports in range (try port bitmask or N flows per N ports?)
 
* Miscellaneous items:
 
* Miscellaneous items:
 
** ovs_neutron_agent nuances:  
 
** ovs_neutron_agent nuances:  
 
*** (1) firewall invoked before agent does anything in C[R]UD operations  
 
*** (1) firewall invoked before agent does anything in C[R]UD operations  
*** (2) agent removes all flows at initialization
+
*** (2) agent removes all flows at initialization (as well as deletes all flows on port_bound)
 
*** (3) ovs atomicity like iptables-restore has (all connections might be dropped/allowed): one possibility is to have a dynamic multi-table hotswap
 
*** (3) ovs atomicity like iptables-restore has (all connections might be dropped/allowed): one possibility is to have a dynamic multi-table hotswap
 
** if extra time, quickly mention:
 
** if extra time, quickly mention:
*** working on adding IPv6 flows
+
*** neutron-rootwrap-xen-dom0 bugs: https://bugs.launchpad.net/neutron/+bug/1185872/comments/3, https://bugs.launchpad.net/neutron/+bug/1259748
*** working on adding multiple ports in range (try port bitmask or N flows per N ports?)
 
 
*** of course, need to add unit/integration tests; if someone wants to help on integration tests, that would be good if that's possible
 
*** of course, need to add unit/integration tests; if someone wants to help on integration tests, that would be good if that's possible
*** neutron-rootwrap-xen-dom0 bugs: https://bugs.launchpad.net/neutron/+bug/1185872/comments/3, https://bugs.launchpad.net/neutron/+bug/1259748
 
*** other network types: should work as-is since the tunnel OVS flows just pass it to the integration bridge where firewall flows live, but test environment not setup to do so
 
 
*** table, priority coordination: ok for now to be hard-coded in Neutron, but will need an abstraction in the future possibly
 
*** table, priority coordination: ok for now to be hard-coded in Neutron, but will need an abstraction in the future possibly

Revision as of 04:42, 14 December 2013

Meeting Dec 16, 2013

  • Purpose restatement
  • Design decisions
  • Overview of prototype
    • all security group flows on integration bridge
    • currently all on table 0, thinking about multi-table setup
    • prototype tested on flat network setup; should work on other network types as-is since the tunnel OVS flows just pass the data to the integration bridge
    • still a WIP:
      • working on adding IPv6 flows
      • working on adding multiple ports in range (try port bitmask or N flows per N ports?)
  • Miscellaneous items:
    • ovs_neutron_agent nuances:
      • (1) firewall invoked before agent does anything in C[R]UD operations
      • (2) agent removes all flows at initialization (as well as deletes all flows on port_bound)
      • (3) ovs atomicity like iptables-restore has (all connections might be dropped/allowed): one possibility is to have a dynamic multi-table hotswap
    • if extra time, quickly mention: