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Container Infrastructure Management Service for OpenStack
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Angus Lees 14909f0944 Add flannel's host-gw backend option 
Allow configuring Flannel with 3 different backends

Magnum deploys k8s/swarm over a dedicated neutron private network,
possibly using flannel.  Flannel's `host-gw` backend gives the best
performance in this topopolgy (private layer2): no packet processing
overhead, no reduction to MTU, scales to many hosts as well as the
alternatives.  The performance difference is significant, see bug for
performance numbers for the 3 backend options.

Note that part of this change involves relaxing the minion IP spoofing
rules to allow traffic from all dynamically-allocated flannel subnets.
This is morally equivalent to what we were doing previously with
encapsulation - only now neutron is able to see the inner IP header
directly.

This patch repurposes the label "flannel_use_vxlan" when the network
driver is flannel.

1. Rename the label flannel_use_vxlan to flannel_backend
2. Redefine the value of this label from "yes/no"
   to "udp/vxlan/host-gw"

For example, to create a bay model with flannel as network driver:
--network-driver flannel --labels flannel_backend=host-gw

Other backend options are udp and vxlan.

Co-Authored-By: Ton Ngo <ton@us.ibm.com>
Partial-Bug: #1518605
Closes-Bug: #1516789
Change-Id: I6d2441664ad1baaca14d0e6ff4bcddbe75bee094
 		2016-03-18 04:53:24 +00:00
contrib/templates/example Update Dev Quick-Start links to officail docs 2015-10-05 00:35:46 -07:00
devstack devstack: Comment out some environment dependent neutron settings 2016-03-11 14:32:41 +09:00
doc/source Add Image Management section in User Guide 2016-03-15 15:26:48 +00:00
etc/magnum Moved CORS middleware configuration into oslo-config-generator 2016-03-09 13:02:07 -08:00
magnum Add flannel's host-gw backend option 2016-03-18 04:53:24 +00:00
specs Add flannel's host-gw backend option 2016-03-18 04:53:24 +00:00
tools Improve tox.ini to easy developer's life 2015-11-03 17:44:38 +08:00
.coveragerc Change ignore-errors to ignore_errors 2015-09-21 14:28:49 +00:00
.gitignore Ignore the generated config file 2016-02-29 14:50:35 -05:00
.gitreview Update .gitreview for project rename 2015-03-28 00:20:40 +00:00
.mailmap Initial commit from github (squashed) 2014-11-18 09:23:37 -05:00
.testr.conf Make room for functional tests 2015-04-02 12:25:43 -04:00
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:45 +00:00
Dockerfile Fix the docker build image issue 2015-05-18 11:11:25 +08:00
HACKING.rst Remove unused hacking rule from HACKING.rst 2016-01-29 14:35:51 +08:00
LICENSE Initial commit from github (squashed) 2014-11-18 09:23:37 -05:00
MANIFEST.in Copy Ironic's database model codebase 2014-12-02 15:04:31 -07:00
README.rst Fix the representation of REST 2015-09-01 08:40:39 +05:30
babel.cfg Initial commit from github (squashed) 2014-11-18 09:23:37 -05:00
functional_creds.conf.sample Rename flavor name used in gate tests 2016-03-12 11:18:59 +05:30
requirements.txt Updated from global requirements 2016-03-05 20:45:44 +00:00
setup.cfg register the config generator default hook with the right name 2016-03-11 15:29:09 -05:00
setup.py Updated from global requirements 2015-09-17 12:12:49 +00:00
test-requirements.txt Add missing test-requirements 2016-02-18 22:00:18 +08:00
tox.ini Remove bandit.yaml in favor of defaults 2016-03-09 11:20:28 -08:00

README.rst

Magnum

Magnum is an OpenStack project which offers container orchestration engines for deploying and managing containers as first class resources in OpenStack.

For more information, please refer to the following resources: