2.1. Devstack Configuration¶

#
# This sample file is intended to be used for your typical DevStack environment
# that's running all of OpenStack on a single host.  This can also be used as
# the first host of a multi-host test environment.
#
# No changes to this sample configuration are required for this to work.
#
DATABASE_PASSWORD=password
RABBIT_PASSWORD=password
SERVICE_PASSWORD=password
SERVICE_TOKEN=password
ADMIN_PASSWORD=password

# The DevStack plugin defaults to using the ovn branch from the official ovs
# repo.  You can optionally use a different one.  For example, you may want to
# use the latest patches in blp's ovn branch:
#OVN_REPO=https://github.com/blp/ovs-reviews.git
#OVN_BRANCH=ovn

enable_plugin networking-ovn https://git.openstack.org/openstack/networking-ovn
enable_service ovn-northd
enable_service ovn-controller
enable_service networking-ovn-metadata-agent

# Use Neutron instead of nova-network
disable_service n-net
enable_service q-svc

# Disable Neutron agents not used with OVN.
disable_service q-agt
disable_service q-l3
disable_service q-dhcp
disable_service q-meta

# Horizon (the web UI) is enabled by default. You may want to disable
# it here to speed up DevStack a bit.
enable_service horizon
#disable_service horizon

# Cinder (OpenStack Block Storage) is disabled by default to speed up
# DevStack a bit. You may enable it here if you would like to use it.
disable_service cinder c-sch c-api c-vol
#enable_service cinder c-sch c-api c-vol

# How to connect to ovsdb-server hosting the OVN NB database.
#OVN_NB_REMOTE=tcp:$SERVICE_HOST:6641

# How to connect to ovsdb-server hosting the OVN SB database.
#OVN_SB_REMOTE=tcp:$SERVICE_HOST:6642

# A UUID to uniquely identify this system.  If one is not specified, a random
# one will be generated and saved in the file 'ovn-uuid' for re-use in future
# DevStack runs.
#OVN_UUID=

# If using the OVN native layer-3 service, choose a router scheduler to
# manage the distribution of router gateways on hypervisors/chassis.
# Default value is leastloaded.
#OVN_L3_SCHEDULER=leastloaded

# Whether or not to build custom openvswitch kernel modules from the ovs git
# tree. This is enabled by default.  This is required unless your distro kernel
# includes ovs+conntrack support.  This support was first released in Linux 4.3,
# and will likely be backported by some distros.
#OVN_BUILD_MODULES=False

# Enable services, these services depend on neutron plugin.
#enable_plugin neutron https://git.openstack.org/openstack/neutron
#enable_service q-qos
#enable_service q-trunk

# Skydive
#enable_plugin skydive https://github.com/redhat-cip/skydive.git
#enable_service skydive-analyzer
#enable_service skydive-agent

# If you want to enable a provider network instead of the default private
# network after your DevStack environment installation, you *must* set
# the Q_USE_PROVIDER_NETWORKING to True, and also give FIXED_RANGE,
# NETWORK_GATEWAY and ALLOCATION_POOL option to the correct value that can
# be used in your environment. Specifying Q_AGENT is needed to allow devstack
# to run various "ip link set" and "ovs-vsctl" commands for the provider
# network setup.
#Q_AGENT=openvswitch
#Q_USE_PROVIDER_NETWORKING=True
#PHYSICAL_NETWORK=providernet
#PROVIDER_NETWORK_TYPE=flat
#PUBLIC_INTERFACE=<public interface>
#OVS_PHYSICAL_BRIDGE=br-provider
#PROVIDER_SUBNET_NAME=provider-subnet
# use the following for IPv4
#IP_VERSION=4
#FIXED_RANGE=<CIDR for the Provider Network>
#NETWORK_GATEWAY=<Provider Network Gateway>
#ALLOCATION_POOL=<Provider Network Allocation Pool>
# use the following for IPv4+IPv6
#IP_VERSION=4+6
#FIXED_RANGE=<CIDR for the Provider Network>
#NETWORK_GATEWAY=<Provider Network Gateway>
#ALLOCATION_POOL=<Provider Network Allocation Pool>
# IPV6_PROVIDER_FIXED_RANGE=<v6 CDIR for the Provider Network>
# IPV6_PROVIDER_NETWORK_GATEWAY=<v6 Gateway for the Provider Network>

# If you wish to use the provider network for public access to the cloud,
# set the following
#Q_USE_PROVIDERNET_FOR_PUBLIC=True
#PUBLIC_NETWORK_NAME=<Provider network name>
#PUBLIC_NETWORK_GATEWAY=<Provider network gateway>
#PUBLIC_PHYSICAL_NETWORK=<Provider network name>
#IP_VERSION=4
#PUBLIC_SUBNET_NAME=<provider subnet name>
#Q_FLOATING_ALLOCATION_POOL=<Provider Network Allocation Pool>
#FLOATING_RANGE=<CIDR for the Provider Network>

# NOTE: DO NOT MOVE THESE SECTIONS FROM THE END OF THIS FILE
# IF YOU DO, THEY WON'T WORK!!!!!
#

# Enable Nova automatic host discovery for cell every 2 seconds
# Only needed in case of multinode devstack, as otherwise there will be issues
# when the 2nd compute node goes online.
discover_hosts_in_cells_interval=2

...
...
[ovs]
#
# From networking_ovn.metadata.agent
#

# The connection string for the native OVSDB backend.
# Use tcp:IP:PORT for TCP connection.
# Use unix:FILE for unix domain socket connection. (string value)
#ovsdb_connection = unix:/usr/local/var/run/openvswitch/db.sock

# Timeout in seconds for the OVSDB connection transaction (integer value)
#ovsdb_connection_timeout = 180

[ovn]
ovn_sb_connection = tcp:<controller-ip>:<port>

[DEFAULT]
service_plugins = networking_ovn.l3.l3_ovn.OVNL3RouterPlugin

[ml2]
mechanism_drivers = ovn,logger

[ovn]
ovn_metadata_enabled = True
ovn_l3_scheduler = leastloaded
neutron_sync_mode = log
ovn_sb_connection = tcp:<controller-ip>:<port>
ovn_nb_connection = tcp:<controller-ip>:<port>