Build Private Cloud with OpenStack Kolla-ansible Step by Step Guide 1.0 -Part 9-Openstack Create Network

Index

Part 1 Preparation

Part 2 OS Preparation

Part 3 Prepare Docker Registry

Part 4-Install Ceph Cluster

Part 5-Ceph Cluster Troubleshooting

Part 6-Deploy Openstack with Kolla-ansible

Part 7-Openstack Cluster Post Installation

Part 8-Openstack Upload Image

Part 9-Openstack Create Network

Part 10-Openstack Create VM

Create External Network

Before we can create external network, we need to know what’s the external network name is, here is the way how to find it.

How to find external network name

root@openstack-controller01:~# docker exec -it neutron_server bash

Go to /etc/neutron/plugins/ml2/ and check ml2_conf.ini file

(neutron-server)[neutron@openstack-controller01 /]$ cd /etc/neutron/plugins/ml2/
(neutron-server)[neutron@openstack-controller01 ml2]$ cat ml2_conf.ini
[ml2]
type_drivers = flat,vlan,vxlan
tenant_network_types = vxlan
mechanism_drivers = openvswitch,l2population
extension_drivers = port_security[ml2_type_vlan]
network_vlan_ranges =[ml2_type_flat]
flat_networks = physnet1[ml2_type_vxlan]
vni_ranges = 1:1000

There is a flat_nbetworks = physnet1, that’s the external network we need while creating the external network in openstack

Create External Public network

By CLI

source admin-openrc.shopenstack network create --external --provider-network-type vlan --provider-physical-network  physnet1 --provider-segment 5 --project admin --share public-networkopenstack subnet create --network public-network --project admin --allocation-pool start=10.207.88.151,end=10.207.89.254 --gateway 10.207.88.1 --dns-nameserver=10.255.255.6 --subnet-range 10.207.88.0/23 public-network-subnet

By GUI