4. Configure network¶
network_cfg.yaml file describes networks configuration for openstack on hosts. It
specifies host network mapping and ip assignment of networks to be installed on hosts.
Compass4nfv includes a sample network_cfg.yaml under
compass4nfv/deploy/conf/network_cfg.yaml
There are three openstack networks to be installed: external, mgmt and storage. These three networks can be shared on one physical nic or on separate nics (multi-nic). The sample included in compass4nfv uses one nic. For multi-nic configuration, see multi-nic configuration.
4.1. Configure openstack network¶
**! All interface name in network_cfg.yaml must be identified in dha file by mac address !**
Compass4nfv will install networks on host as described in this configuration. It will look for physical nic on host by mac address from dha file and rename nic to the name with that mac address. Therefore, any network interface name that is not identified by mac address in dha file will not be installed correctly as compass4nfv cannot find the nic.
Configure provider network
provider_net_mappings:
- name: br-prv
network: physnet
interface: eth1
type: ovs
role:
- controller
- compute
The external nic in dha file must be named eth1
with mac address. If user uses a
different interface name in dha file, change eth1
to that name here.
Note: User cannot use eth0 for external interface name as install/pxe network is named as
such.
Configure openstack mgmt&storage network:
sys_intf_mappings:
- name: mgmt
interface: eth1
vlan_tag: 101
type: vlan
role:
- controller
- compute
- name: storage
interface: eth1
vlan_tag: 102
type: vlan
role:
- controller
- compute
Change vlan_tag
of mgmt
and storage
to corresponding vlan tag configured on
switch.
Note: for virtual deployment, there is no need to modify mgmt&storage network.
If using multi-nic feature, i.e, separate nic for mgmt or storage network, user needs to
change name
to desired nic name (need to match dha file). Please see multi-nic
configuration.
4.2. Assign IP address to networks¶
ip_settings
section specifics ip assignment for openstack networks.
User can use default ip range for mgmt&storage network.
for external networks:
- name: external
ip_ranges:
- - "192.168.50.210"
- "192.168.50.220"
cidr: "192.168.50.0/24"
gw: "192.168.50.1"
role:
- controller
- compute
Provide at least number of hosts available ip for external IP range(these ips will be
assigned to each host). Provide actual cidr and gateway in cidr
and gw
fields.
configure public IP for horizon dashboard
public_vip:
ip: 192.168.50.240
netmask: "24"
interface: external
Provide an external ip in ip
field. This ip cannot be within the ip range assigned to
external network configured in pervious section. It will be used for horizon address.
See section 6.2 (Vitual) and 7.2 (BareMetal) for graphs illustrating network topology.