OpenStack Zed : Configure Neutron Network2023/06/27 |
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Configure Networking for Virtual Machine Instances.
For example, configure FLAT type of networking on here.
The Node has 2 network interfaces like follows.
eth0|10.0.0.30
+-----------+-----------+
| [ dlp.srv.world ] |
| (Control Node) |
| |
| MariaDB RabbitMQ |
| Memcached Nginx |
| Keystone httpd |
| Glance Nova API |
| Nova Compute |
| Neutron Server |
| Neutron Metadata |
| Neutron L2/L3 Agent |
| Open vSwitch |
+-----------+-----------+
eth1|(UP with no IP)
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| [1] | Configure Neutron services. |
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root@dlp ~(keystone)#
vi /etc/network/interfaces # add to the end : setting for anonymous interface # replace the name [eth1] to your environment auto eth1 iface eth1 inet manual
root@dlp ~(keystone)#
ip link set eth1 up # add bridge (any name you like for [br-eth1]) root@dlp ~(keystone)# ovs-vsctl add-br br-eth1 root@dlp ~(keystone)# ip link set br-eth1 up root@dlp ~(keystone)# echo -e '\nauto br-eth1\niface br-eth1 inet manual' >> /etc/network/interfaces
# add a port to the bridge # replace [eth1] to your own environment root@dlp ~(keystone)# ovs-vsctl add-port br-eth1 eth1
root@dlp ~(keystone)#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # add a line under [ml2_type_flat] section [ml2_type_flat] flat_networks = physnet1
root@dlp ~(keystone)#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # add a line undet [ovs] section [ovs] bridge_mappings = physnet1:br-eth1
systemctl restart neutron-api neutron-rpc-server neutron-openvswitch-agent
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| [2] | Create virtual network. |
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root@dlp ~(keystone)#
projectID=$(openstack project list | grep service | awk '{print $2}') # create network named [sharednet1] root@dlp ~(keystone)# openstack network create --project $projectID \ --share --provider-network-type flat --provider-physical-network physnet1 sharednet1 +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2023-06-27T02:37:06Z | | description | | | dns_domain | None | | id | 69962e3a-3e00-41b8-866b-d67cc50b11b9 | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | is_vlan_transparent | None | | mtu | 1500 | | name | sharednet1 | | port_security_enabled | True | | project_id | d8b09d86ed7743039f92b2e542ea26c1 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 1 | | router:external | Internal | | segments | None | | shared | True | | status | ACTIVE | | subnets | | | tags | | | updated_at | 2023-06-27T02:37:06Z | +---------------------------+--------------------------------------+ # create subnet [10.0.0.0/24] in [sharednet1] root@dlp ~(keystone)# openstack subnet create subnet1 --network sharednet1 \ --project $projectID --subnet-range 10.0.0.0/24 \ --allocation-pool start=10.0.0.200,end=10.0.0.254 \ --gateway 10.0.0.1 --dns-nameserver 10.0.0.10 +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2023-06-27T02:37:36Z | | description | | | dns_nameservers | 10.0.0.10 | | dns_publish_fixed_ip | None | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 2af9e60c-505e-439d-80af-61636d4266ca | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 69962e3a-3e00-41b8-866b-d67cc50b11b9 | | project_id | d8b09d86ed7743039f92b2e542ea26c1 | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2023-06-27T02:37:36Z | +----------------------+--------------------------------------+ # confirm settings root@dlp ~(keystone)# openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | 69962e3a-3e00-41b8-866b-d67cc50b11b9 | sharednet1 | 2af9e60c-505e-439d-80af-61636d4266ca | +--------------------------------------+------------+--------------------------------------+root@dlp ~(keystone)# openstack subnet list +--------------------------------------+---------+--------------------------------------+-------------+ | ID | Name | Network | Subnet | +--------------------------------------+---------+--------------------------------------+-------------+ | 2af9e60c-505e-439d-80af-61636d4266ca | subnet1 | 69962e3a-3e00-41b8-866b-d67cc50b11b9 | 10.0.0.0/24 | +--------------------------------------+---------+--------------------------------------+-------------+ |
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