OpenStack Newton : Neutron ネットワーク構成(VXLAN)2017/07/03 |
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OpenStack Network Service（Neutron）による仮想ネットワークの構成です。
例として、VXLAN タイプのネットワークを構成します。
事前に以下のように Control ノード、 Network ノード、 Compute ノードの 各 Neutron サービスノードを構築済みであることが前提です。
また、当例では Network ノードが二つのネットワークインターフェースを持っているものとします。
------------+--------------------------------+--------------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | |eth1 | Libvirt |
| Memcached httpd | | L2,L3,Metadata Agent +---- | Nova Compute |
| Keystone Glance | | | | L2 Agent |
| Nova API | | | | |
| Neutron Server | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Control ノードで以下のように設定変更します。 |
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root@dlp ~(keystone)#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 94行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 129行目：変更 flat_networks = physnet1
# 171行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
systemctl restart neutron-server |
| [2] | Network ノードで以下のように設定変更します。 |
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# ブリッジ追加 root@network:~# ovs-vsctl add-br br-eth1 # 追加したブリッジのポートにeth1を追加 root@network:~# ovs-vsctl add-port br-eth1 eth1
root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 94行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 129行目：変更 flat_networks = physnet1
# 171行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@network:~#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # 99行目：コメント解除して変更 tunnel_types = vxlan
# 180行目：コメント解除して変更 bridge_mappings = physnet1:br-eth1
for service in l3-agent dhcp-agent metadata-agent openvswitch-agent; do systemctl restart neutron-$service done |
| [3] | Compute ノードで以下のように設定変更します。 |
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root@node01:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 94行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 129行目：変更 flat_networks = physnet1
# 171行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@node01:~#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # 99行目：コメント解除して変更 tunnel_types = vxlan
systemctl restart neutron-openvswitch-agent |
| [4] | 仮想ルータを作成しておきます。作業場所はどこでもよいですが、ここでは Control ノード上で作業します。 |
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# 仮想ルーター作成 root@dlp ~(keystone)# openstack router create router01 Created a new router: +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-07-06T07:29:08Z | | description | | | distributed | False | | external_gateway_info | null | | flavor_id | None | | ha | False | | headers | | | id | 5e8f17a6-8808-4644-acd3-0cb6016bad51 | | name | router01 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | revision_number | 2 | | routes | | | status | ACTIVE | | updated_at | 2017-07-06T07:29:08Z | +-------------------------+--------------------------------------+ |
| [5] | 内部用のネットワークを作成し、仮想ルーターに関連付けます。 |
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# 内部用ネットワーク作成 root@dlp ~(keystone)# openstack network create int_net --provider-network-type vxlan +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-07-06T07:29:27Z | | description | | | headers | | | id | d8259723-ca53-4f6e-8bd6-b7787775dfe8 | | ipv4_address_scope | None | | ipv6_address_scope | None | | mtu | 1450 | | name | int_net | | port_security_enabled | True | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | provider:network_type | vxlan | | provider:physical_network | None | | provider:segmentation_id | 39 | | revision_number | 3 | | router:external | Internal | | shared | False | | status | ACTIVE | | subnets | | | tags | [] | | updated_at | 2017-07-06T07:29:27Z | +---------------------------+--------------------------------------+ # 内部用ネットワークにサブネット作成 root@dlp ~(keystone)# openstack subnet create subnet1 --network int_net \ --subnet-range 192.168.100.0/24 --gateway 192.168.100.1 \ --dns-nameserver 10.0.0.10 +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 192.168.100.2-192.168.100.254 | | cidr | 192.168.100.0/24 | | created_at | 2017-07-06T07:29:48Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 192.168.100.1 | | headers | | | host_routes | | | id | f9cf78f4-3702-4894-9f3b-755b541fc162 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | d8259723-ca53-4f6e-8bd6-b7787775dfe8 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | revision_number | 2 | | service_types | [] | | subnetpool_id | None | | updated_at | 2017-07-06T07:29:48Z | +-------------------+--------------------------------------+ # 仮想ルーターに内部ネットワークを設定 root@dlp ~(keystone)# openstack router add subnet router01 subnet1 |
| [6] | 外部接続用のネットワークを作成し、仮想ルーターに関連付けます。 |
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# 外部用ネットワーク作成 root@dlp ~(keystone)# openstack network create \ --provider-physical-network physnet1 \ --provider-network-type flat --external ext_net +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-07-06T07:30:12Z | | description | | | headers | | | id | 3bbaadd7-6da0-494b-950d-489566b78713 | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | revision_number | 3 | | router:external | External | | shared | False | | status | ACTIVE | | subnets | | | tags | [] | | updated_at | 2017-07-06T07:30:12Z | +---------------------------+--------------------------------------+ # 外部用ネットワークにサブネット作成 root@dlp ~(keystone)# openstack subnet create subnet2 \ --network ext_net --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 --no-dhcp +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2017-07-06T07:30:32Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | False | | gateway_ip | 10.0.0.1 | | headers | | | host_routes | | | id | 688823d2-605c-4208-a42c-0622d182abf6 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet2 | | network_id | 3bbaadd7-6da0-494b-950d-489566b78713 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | revision_number | 2 | | service_types | [] | | subnetpool_id | None | | updated_at | 2017-07-06T07:30:32Z | +-------------------+--------------------------------------+ # 仮想ルーターにゲートウェイを設定 root@dlp ~(keystone)# neutron router-gateway-set \
$(openstack router list | grep router01 | awk '{ print $2 }') \ $(openstack network list | grep ext_net | awk '{ print $2 }') |
| [7] | 内部ネットワークを関連付けた仮想マシンインスタンスを作成して起動します。 |
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root@dlp ~(keystone)#
root@dlp ~(keystone)# Int_Net_ID=`openstack network list | grep int_net | awk '{ print $2 }'` openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | a44f263f-be6c-4b7a-b23e-228f8cf396ca | Debian9 | active | +--------------------------------------+---------+--------+root@dlp ~(keystone)# openstack server create --flavor m1.small --image Debian9 --security-group default --nic net-id=$Int_Net_ID Debian_9 root@dlp ~(keystone)# openstack server list +--------------------------------------+----------+--------+-----------------------+------------+ | ID | Name | Status | Networks | Image Name | +--------------------------------------+----------+--------+-----------------------+------------+ | bab79aeb-5e1f-4331-83f0-ff6cc662b13d | Debian_9 | ACTIVE | int_net=192.168.100.3 | Debian9 | +--------------------------------------+----------+--------+-----------------------+------------+ |
| [8] | 作成した仮想マシンインスタンスにフローティングIPを割り当てます。 |
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root@dlp ~(keystone)# openstack floating ip create ext_net +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-07-06T07:34:24Z | | description | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.204 | | floating_network_id | 3bbaadd7-6da0-494b-950d-489566b78713 | | headers | | | id | a8e89629-6f9c-4258-9a43-55cb3153b48b | | port_id | None | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | revision_number | 1 | | router_id | None | | status | DOWN | | updated_at | 2017-07-06T07:34:24Z | +---------------------+--------------------------------------+
root@dlp ~(keystone)#
openstack server add floating ip Debian_9 10.0.0.204 # 設定確認 root@dlp ~(keystone)# openstack floating ip show 10.0.0.204 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-07-06T07:34:24Z | | description | | | fixed_ip_address | 192.168.100.3 | | floating_ip_address | 10.0.0.204 | | floating_network_id | 3bbaadd7-6da0-494b-950d-489566b78713 | | id | a8e89629-6f9c-4258-9a43-55cb3153b48b | | port_id | 223c25e0-d149-40d9-bcd4-255158cbfb4e | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | revision_number | 2 | | router_id | 5e8f17a6-8808-4644-acd3-0cb6016bad51 | | status | ACTIVE | | updated_at | 2017-07-06T07:34:44Z | +---------------------+--------------------------------------+ |
| [9] | 起動した仮想マシンインスタンスにSSHで接続できるように、デフォルトセキュリティグループにポート許可の設定をしておきます。 |
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# ICMP 許可 root@dlp ~(keystone)# openstack security group rule create --protocol icmp --ingress default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-07-06T07:35:12Z | | description | | | direction | ingress | | ethertype | IPv4 | | headers | | | id | 8fcf2c23-361d-467d-9293-4519276900df | | port_range_max | None | | port_range_min | None | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | c2471cef-b570-46ac-8a5d-088547c4b8c5 | | updated_at | 2017-07-06T07:35:12Z | +-------------------+--------------------------------------+ # SSH 許可 root@dlp ~(keystone)# openstack security group rule create --protocol tcp --dst-port 22:22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-07-06T07:35:26Z | | description | | | direction | ingress | | ethertype | IPv4 | | headers | | | id | 1ff0166a-6c14-4580-b638-bf23bb45815c | | port_range_max | 22 | | port_range_min | 22 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | project_id | aa50ee91b9f748a38d9e1643006b6bd1 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | c2471cef-b570-46ac-8a5d-088547c4b8c5 | | updated_at | 2017-07-06T07:35:26Z | +-------------------+--------------------------------------+root@dlp ~(keystone)# openstack security group rule list +-----------+-------------+-----------+------------+--------------------------+---------------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Group | +-----------+-------------+-----------+------------+--------------------------+---------------------+ | 1ff0166a- | tcp | 0.0.0.0/0 | 22:22 | None | c2471cef-b570-46ac- | | 5414cf34- | None | None | | c2471cef-b570-46ac-8a5d- | c2471cef-b570-46ac- | | 7161b00c- | None | None | | None | c2471cef-b570-46ac- | | 8fcf2c23- | icmp | 0.0.0.0/0 | | None | c2471cef-b570-46ac- | | 99774862- | None | None | | c2471cef-b570-46ac-8a5d- | c2471cef-b570-46ac- | | ef685e2b- | None | None | | None | c2471cef-b570-46ac- | +-----------+-------------+-----------+------------+--------------------------+---------------------+ |
| [10] | 仮想マシンインスタンスに割りあてたフローティングIPあてに SSH 接続することで、インスタンスにログインできます。 |
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root@dlp ~(keystone)# ssh debian@10.0.0.204
The authenticity of host '10.0.0.204 (10.0.0.204)' can't be established.
ECDSA key fingerprint is SHA256:8BCoEq/qE1pI3cVawS3cZdAk8xCctjljkrAVwPZAMRU.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.204' (ECDSA) to the list of known hosts.
debian@10.0.0.204's password:
Linux debian.srv.world 4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u2 (2017-06-26) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
debian@debian:~$ # ログインできた
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