openstack/openstack-ansible
Code Issues Proposed changes

Provide example of using veth pairs for br-vlan

Browse Source 
When the neutron agent is not containerized on compute
hosts a veth pair is needed to provide a non-bridge interface
in order to access br-vlan for tenant vlans.

Related-Bug: 1656344
Related-Bug: 1399432

Change-Id: Id1ee07a1d0720b35c908221fc560c188f3444c64
This commit is contained in:
Kyle L. Henderson 2017-03-13 11:05:29 -05:00
parent 90d28916be
commit 8152a15862
2 changed files with 46 additions and 5 deletions
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25
etc/network/interfaces.d/openstack_interface.cfg.prod.example
View File

@ -107,6 +107,31 @@ iface br-vlan inet manual
bridge_fd 0
bridge_ports bond1
# compute1 Network VLAN bridge
#auto br-vlan
#iface br-vlan inet manual
# bridge_stp off
# bridge_waitport 0
# bridge_fd 0
#
# For tenant vlan support, create a veth pair to be used when the neutron
# agent is not containerized on the compute hosts. 'eth12' is the value used on
# the host_bind_override parameter of the br-vlan network section of the
# openstack_user_config example file. The veth peer name must match the value
# specified on the host_bind_override parameter.
#
# When the neutron agent is containerized it will use the container_interface
# value of the br-vlan network, which is also the same 'eth12' value.
#
# Create veth pair, do not abort if already exists
# pre-up ip link add br-vlan-veth type veth peer name eth12 || true
# Set both ends UP
# pre-up ip link set br-vlan-veth up
# pre-up ip link set eth12 up
# Delete veth pair on DOWN
# post-down ip link del br-vlan-veth || true
# bridge_ports bond1 br-vlan-veth
# Storage bridge (optional)
#
# Only the COMPUTE and STORAGE nodes must have an IP address

26
etc/network/interfaces.d/openstack_interface.cfg.test.example
View File

@ -69,14 +69,30 @@ iface br-vlan inet manual
bridge_fd 0
bridge_ports eth0
# compute1 Network VLAN bridge
#auto br-vlan
#iface br-vlan inet manual
# bridge_stp off
# bridge_waitport 0
# bridge_fd 0
#
# For tenant vlan support, create a veth pair to be used when the neutron
# agent is not containerized on the compute hosts. 'eth12' is the value used on
# the host_bind_override parameter of the br-vlan network section of the
# openstack_user_config example file. The veth peer name must match the value
# specified on the host_bind_override parameter.
#
# When the neutron agent is containerized it will use the container_interface
# value of the br-vlan network, which is also the same 'eth12' value.
#
# Create veth pair, do not abort if already exists
pre-up ip link add br-vlan-veth type veth peer name eth0 || true
# pre-up ip link add br-vlan-veth type veth peer name eth12 || true
# Set both ends UP
pre-up ip link set br-vlan-veth up
pre-up ip link set eth0 up
# pre-up ip link set br-vlan-veth up
# pre-up ip link set eth12 up
# Delete veth pair on DOWN
post-down ip link del br-vlan-veth || true
bridge_ports br-vlan-veth
# post-down ip link del br-vlan-veth || true
# bridge_ports eth0 br-vlan-veth
# Storage bridge (optional)
#