OpenStack Pike : Neutron ネットワーク構成(VXLAN)2017/09/13 |
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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 | | L2 Agent | | Libvirt |
| Memcached httpd | | L3 Agent | | Nova Compute |
| Keystone Glance | | Metadata Agent | | L2 Agent |
| Nova API | | | | |
| Neutron Server | | | | |
| Metadata Agent | | | | |
+-----------------------+ +-----------+-----------+ +-----------------------+
|eth1
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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 # 115行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 166行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 220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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root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 115行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 166行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 220行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 114行目：追記 [agent]
prevent_arp_spoofing = True
# 145行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
# 168行目：追記 [vxlan]
enable_vxlan = True
l2_population = True
root@network:~#
vi /etc/neutron/dhcp_agent.ini # 83行目：追記
dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf
root@network:~#
vi /etc/neutron/dnsmasq-neutron.conf # 新規作成
dhcp-option-force=26,1450
for service in l3-agent dhcp-agent metadata-agent linuxbridge-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 # 115行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 166行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 220行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@node01:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 114行目：追記 [agent]
prevent_arp_spoofing = True
# 168行目：追記 [vxlan]
enable_vxlan = True
l2_population = True systemctl restart neutron-linuxbridge-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 | 2017-09-15T04:31:50Z | | description | | | distributed | False | | external_gateway_info | None | | flavor_id | None | | ha | False | | id | 605d39c2-393d-48b7-b108-7d6cac175821 | | name | router01 | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | revision_number | None | | routes | | | status | ACTIVE | | tags | | | updated_at | 2017-09-15T04:31:50Z | +-------------------------+--------------------------------------+ |
| [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 | 2017-09-15T04:32:06Z | | description | | | dns_domain | None | | id | fcfcf86c-40a6-4c79-9431-feb74dc5a6bc | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | is_vlan_transparent | None | | mtu | 1450 | | name | int_net | | port_security_enabled | True | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | provider:network_type | vxlan | | provider:physical_network | None | | provider:segmentation_id | 47 | | qos_policy_id | None | | revision_number | 2 | | router:external | Internal | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | tags | | | updated_at | 2017-09-15T04:32:06Z | +---------------------------+--------------------------------------+ # 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 | 2017-09-15T04:32:29Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 192.168.100.1 | | host_routes | | | id | 65e69dd1-0b8c-43d7-9c44-b8099a2e0f82 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | fcfcf86c-40a6-4c79-9431-feb74dc5a6bc | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2017-09-15T04:32:29Z | | use_default_subnet_pool | None | +-------------------------+--------------------------------------+ # 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 | 2017-09-15T04:32:58Z | | description | | | dns_domain | None | | id | 5adc2598-4ebe-4110-b6bf-47d9e2b5c48e | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | is_vlan_transparent | None | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 3 | | router:external | External | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | tags | | | updated_at | 2017-09-15T04:32:58Z | +---------------------------+--------------------------------------+ # 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 | 2017-09-15T04:33:21Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | False | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 6572863d-f10a-456e-932c-2581d39a3349 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet2 | | network_id | 5adc2598-4ebe-4110-b6bf-47d9e2b5c48e | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2017-09-15T04:33:21Z | | use_default_subnet_pool | None | +-------------------------+--------------------------------------+ # 仮想ルーターにゲートウェイを設定 root@dlp ~(keystone)# openstack router set router01 --external-gateway ext_net |
| [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 $2 }'` openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 1f46b995-47e3-4858-b0b0-9221867462cc | Ubuntu1604 | active | +--------------------------------------+------------+--------+ # キーペア作成 root@dlp ~(keystone)# ssh-keygen -q -N "" Enter file in which to save the key (/root/.ssh/id_rsa): root@dlp ~(keystone)# openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey +-------------+-------------------------------------------------+ | Field | Value | +-------------+-------------------------------------------------+ | fingerprint | 7c:99:60:16:6e:79:a5:11:fc:71:f5:c2:77:8c:77:77 | | name | mykey | | user_id | f73e3c2f9e7f4eb793a010f60d5b4674 | +-------------+-------------------------------------------------+root@dlp ~(keystone)# openstack server create --flavor m1.small --image Ubuntu1604 --security-group default --nic net-id=$Int_Net_ID --key-name mykey Ubuntu_1604 root@dlp ~(keystone)# openstack server list +-----------+-------------+--------+------------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +-----------+-------------+--------+------------------------+------------+----------+ | f5ae3046- | Ubuntu_1604 | ACTIVE | int_net=192.168.100.10 | Ubuntu1604 | m1.small | +-----------+-------------+--------+------------------------+------------+----------+ |
| [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 Created a new floatingip: +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-09-15T04:37:15Z | | description | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.210 | | floating_network_id | 5adc2598-4ebe-4110-b6bf-47d9e2b5c48e | | id | 024031d1-197e-4bf9-add3-c0bfc2a04305 | | name | 10.0.0.210 | | port_id | None | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | revision_number | 0 | | router_id | None | | status | DOWN | | updated_at | 2017-09-15T04:37:15Z | +---------------------+--------------------------------------+
root@dlp ~(keystone)#
openstack server add floating ip Ubuntu_1604 10.0.0.210 # 設定確認 root@dlp ~(keystone)# openstack floating ip show 10.0.0.210 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-09-15T04:37:15Z | | description | | | fixed_ip_address | 192.168.100.10 | | floating_ip_address | 10.0.0.210 | | floating_network_id | 5adc2598-4ebe-4110-b6bf-47d9e2b5c48e | | id | 024031d1-197e-4bf9-add3-c0bfc2a04305 | | name | 10.0.0.210 | | port_id | ac2ed703-ead9-4237-8696-c10aaba5fdfa | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | revision_number | 3 | | router_id | 605d39c2-393d-48b7-b108-7d6cac175821 | | status | ACTIVE | | updated_at | 2017-09-15T04:49:37Z | +---------------------+--------------------------------------+ |
| [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 | 2017-09-15T04:39:02Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | de3df98b-093b-447e-ab8d-87fab7cf8347 | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | 8df4495b-961c-41e5-9da0-a895d9a39ac8 | | updated_at | 2017-09-15T04:39:02Z | +-------------------+--------------------------------------+ # SSH 許可 root@dlp ~(keystone)# openstack security group rule create --protocol tcp --dst-port 22:22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-09-15T04:39:17Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | a7559a52-a41e-4e9c-825f-9531d3ee2b76 | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 1ca37b956ae4451892dfcc47f5f98913 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | 8df4495b-961c-41e5-9da0-a895d9a39ac8 | | updated_at | 2017-09-15T04:39:17Z | +-------------------+--------------------------------------+root@dlp ~(keystone)# openstack security group rule list +-----------+-------------+-----------+------------+-----------------------------------+-------------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Group | +-----------+-------------+-----------+------------+-----------------------------------+-------------------+ | 5adaebb5- | None | None | | 8df4495b-961c-41e5-9da0-a895d9ac8 | 8df4495b-961c-... | | 782d21b9- | None | None | | None | 8df4495b-961c-... | | a7559a52- | tcp | 0.0.0.0/0 | 22:22 | None | 8df4495b-961c-... | | d6604a9d- | None | None | | None | 8df4495b-961c-... | | d8a7bf04- | None | None | | 8df4495b-961c-41e5-9da0-a895d9ac8 | 8df4495b-961c-... | | de3df98b- | icmp | 0.0.0.0/0 | | None | 8df4495b-961c-... | +-----------+-------------+-----------+------------+-----------------------------------+-------------------+ |
| [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 ubuntu@10.0.0.210
The authenticity of host '10.0.0.210 (10.0.0.210)' can't be established.
ECDSA key fingerprint is SHA256:CdtOqoerKy4q54iALeVFH+SJFX1RLFmUe3VQAlxbXAI.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.210' (ECDSA) to the list of known hosts.
Welcome to Ubuntu 16.04.3 LTS (GNU/Linux 4.4.0-93-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
Last login: Fri Sep 15 11:26:30 2017
ubuntu@ubuntu-1604:~$ # ログインできた
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