OpenStack Caracal : Configure Neutron Network2024/04/05 |
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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 |
| Open vSwitch |
| OVN Metadata Agent |
| OVN-Controller |
+-----------+-----------+
eth1|(UP with no IP)
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| [1] | Configure Neutron services. |
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# create a setting file for anonymous interface # replace the name [eth1] to your environment root@dlp ~(keystone)# vi /etc/systemd/network/eth1.network [Match] Name=eth1 [Network] LinkLocalAddressing=no IPv6AcceptRA=no
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
# add a port to the bridge # replace [eth1] to your own environment root@dlp ~(keystone)# ovs-vsctl add-port br-eth1 eth1
# map [physnet1] to the bridge (any name you like for [physnet1]) root@dlp ~(keystone)# ovs-vsctl set open . external-ids:ovn-bridge-mappings=physnet1:br-eth1 |
| [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 | 2024-04-05T04:11:04Z | | description | | | dns_domain | None | | id | 1fdae2b1-50f1-40ae-b362-41a42a79933c | | 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 | 6e67adf880a244b8818ec2aa1a36e747 | | 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 | | | tenant_id | 6e67adf880a244b8818ec2aa1a36e747 | | updated_at | 2024-04-05T04:11:04Z | +---------------------------+--------------------------------------+ # 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 | 2024-04-05T04:11:31Z | | description | | | dns_nameservers | 10.0.0.10 | | dns_publish_fixed_ip | None | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 798fa9eb-e997-45b3-9701-3e13d12b301a | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 1fdae2b1-50f1-40ae-b362-41a42a79933c | | project_id | 6e67adf880a244b8818ec2aa1a36e747 | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2024-04-05T04:11:31Z | +----------------------+--------------------------------------+ # confirm settings root@dlp ~(keystone)# openstack network list +--------------------------------+------------+--------------------------------+ | ID | Name | Subnets | +--------------------------------+------------+--------------------------------+ | 1fdae2b1-50f1-40ae-b362- | sharednet1 | 798fa9eb-e997-45b3-9701- | | 41a42a79933c | | 3e13d12b301a | +--------------------------------+------------+--------------------------------+root@dlp ~(keystone)# openstack subnet list +--------------------------+---------+---------------------------+-------------+ | ID | Name | Network | Subnet | +--------------------------+---------+---------------------------+-------------+ | 798fa9eb-e997-45b3-9701- | subnet1 | 1fdae2b1-50f1-40ae-b362- | 10.0.0.0/24 | | 3e13d12b301a | | 41a42a79933c | | +--------------------------+---------+---------------------------+-------------+ |
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