OpenStack Rocky : Neutron ネットワークを構成 (FLAT)2018/09/13 |
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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、FLAT タイプのプロバイダー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 ノードと Compute 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。また、下例で
eth1 の方は IP なしでインターフェースを UP しています。
IP なしでのインターフェース UP の設定はこちらの [1] を参照ください。
------------+---------------------------+---------------------------+------------
| | |
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|(UP with no IP) eth1|(UP with no IP)
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| [1] | Network ノード および Compute ノードの両方で以下のように設定します。 |
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root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 181行目：追記 [ml2_type_flat]
flat_networks = physnet1
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 147行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
# 208行目：コメント解除して変更 enable_vxlan = false
systemctl restart neutron-linuxbridge-agent |
| [2] | ネットワークを作成します。作業場所はどこでもよいですが、当例では Control ノード上で作業します。 |
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root@dlp ~(keystone)#
projectID=$(openstack project list | grep service | awk '{print $2}') # [sharednet1] という名称のネットワークを作成 root@dlp ~(keystone)# openstack network create --project $projectID \ --share --provider-network-type flat --provider-physical-network physnet1 sharednet1 Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2018-09-13T05:29:35Z | | description | | | dns_domain | None | | id | 8b581a42-d71d-432e-9131-ff8acd3155ab | | 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 | aaeee626080841a491235fb06e77f10c | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 0 | | router:external | Internal | | segments | None | | shared | True | | status | ACTIVE | | subnets | | | tags | | | updated_at | 2018-09-13T05:29:35Z | +---------------------------+--------------------------------------+ # [sharednet1] に [10.0.0.0/24] のサブネットを作成 root@dlp ~(keystone)# openstack subnet create subnet1 --network sharednet1 \ --project $projectID --subnet-range 10.0.0.0/24 \ --allocation-pool start=10.0.0.200,end=10.0.0.254 \ --gateway 10.0.0.1 --dns-nameserver 10.0.0.10 Created a new subnet: +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2018-09-13T05:30:04Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 24d7c49d-a320-4737-8235-4ff6de6c1f16 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 8b581a42-d71d-432e-9131-ff8acd3155ab | | project_id | aaeee626080841a491235fb06e77f10c | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2018-09-13T05:30:04Z | +-------------------+--------------------------------------+ # 設定確認 root@dlp ~(keystone)# openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | 8b581a42-d71d-432e-9131-ff8acd3155ab | sharednet1 | 24d7c49d-a320-4737-8235-4ff6de6c1f16 | +--------------------------------------+------------+--------------------------------------+ |
| [3] | 任意のユーザーでログインし、作成したネットワークをインスタンスに紐付けてインスタンスを作成・起動します。 |
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# 利用可能な flavor 確認 ubuntu@dlp ~(keystone)$ openstack flavor list +----+----------+------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +----+----------+------+------+-----------+-------+-----------+ | 0 | m1.small | 2048 | 10 | 0 | 1 | True | +----+----------+------+------+-----------+-------+-----------+ # 利用可能なイメージ確認 ubuntu@dlp ~(keystone)$ openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 7df9e97e-96aa-45f9-8ffb-fa8685283a70 | Ubuntu1804 | active | +--------------------------------------+------------+--------+ # 利用可能なネットワーク確認 ubuntu@dlp ~(keystone)$ openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | 8b581a42-d71d-432e-9131-ff8acd3155ab | sharednet1 | 24d7c49d-a320-4737-8235-4ff6de6c1f16 | +--------------------------------------+------------+--------------------------------------+ # インスタンス用のセキュリティグループを作成 ubuntu@dlp ~(keystone)$ openstack security group create secgroup01 +-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+ | Field | Value | +-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+ | created_at | 2018-09-13T06:21:27Z | | description | secgroup01 | | id | 548287ef-c443-4779-9e9a-f9d44dc0a416 | | name | secgroup01 | | project_id | 5f54b0ad76274f06b13f29458cc1c036 | | revision_number | 1 | | rules | created_at='2018-09-13T06:21:27Z', direction='egress', ethertype='IPv6', id='dcff779c-63c8-4135-8d69-5ecf64ab56a0', updated_at='2018-09-13T06:21:27Z' | | | created_at='2018-09-13T06:21:27Z', direction='egress', ethertype='IPv4', id='de808b07-8e0b-4cc4-8cad-40447b20ee10', updated_at='2018-09-13T06:21:27Z' | | tags | [] | | updated_at | 2018-09-13T06:21:27Z | +-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------+ # インスタンス接続用の SSH キーペア作成 ubuntu@dlp ~(keystone)$ ssh-keygen -q -N "" Enter file in which to save the key (/home/ubuntu/.ssh/id_rsa): # 公開鍵登録 ubuntu@dlp ~(keystone)$ openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey +-------------+-------------------------------------------------+ | Field | Value | +-------------+-------------------------------------------------+ | fingerprint | 04:d4:f6:b2:2d:6c:b4:f2:f4:63:3f:4e:8a:2a:2d:22 | | name | mykey | | user_id | 54951d6863024516a19ed9bda53be12f | +-------------+-------------------------------------------------+ubuntu@dlp ~(keystone)$ netID=$(openstack network list | grep sharednet1 | awk '{ print $2 }')
ubuntu@dlp ~(keystone)$
ubuntu@dlp ~(keystone)$ openstack server create --flavor m1.small --image Ubuntu1804 --security-group secgroup01 --nic net-id=$netID --key-name mykey Ubuntu_1804
openstack server list +--------------------------------------+-------------+--------+-----------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------------+--------+-----------------------+------------+----------+ | df5eb7cb-8d45-4bbc-ae6f-2af1e404a705 | Ubuntu_1804 | ACTIVE | sharednet1=10.0.0.210 | Ubuntu1804 | m1.small | +--------------------------------------+-------------+--------+-----------------------+------------+----------+ |
| [4] | 起動した仮想マシンインスタンスに SSH 接続できるように、先に作成したセキュリティグループにポート許可の設定を追加します。 |
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# ICMP 許可 ubuntu@dlp ~(keystone)$ openstack security group rule create --protocol icmp --ingress secgroup01 +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2018-10-19T05:41:25Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 1cb3d467-78af-412d-ba7b-d6328ae503fe | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 42530f21bf47470ea9283b3ff9f26b5b | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | 310c16a0-6062-46a8-b056-0326d9299aea | | updated_at | 2018-10-19T05:41:25Z | +-------------------+--------------------------------------+ # SSH 許可 ubuntu@dlp ~(keystone)$ openstack security group rule create --protocol tcp --dst-port 22:22 secgroup01 +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2018-10-19T05:42:10Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 2a8aab5b-7aea-446b-bfb4-3a1622717c13 | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 42530f21bf47470ea9283b3ff9f26b5b | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | 310c16a0-6062-46a8-b056-0326d9299aea | | updated_at | 2018-10-19T05:42:10Z | +-------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack security group rule list +--------------------------------------+-------------+-----------+------------+--------------------------------------+--------------------------------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Group | +--------------------------------------+-------------+-----------+------------+--------------------------------------+--------------------------------------+ | 096c82c4-3d27-4cdf-8080-fe91890a9395 | None | None | | None | 4e3708dc-0b32-479c-aa16-d3ea209784ce | | 1cb3d467-78af-412d-ba7b-d6328ae503fe | icmp | 0.0.0.0/0 | | None | 310c16a0-6062-46a8-b056-0326d9299aea | | 22714aa1-c856-49da-a427-ff6ff6d78036 | icmp | 0.0.0.0/0 | | None | 4e3708dc-0b32-479c-aa16-d3ea209784ce | | 2a8aab5b-7aea-446b-bfb4-3a1622717c13 | tcp | 0.0.0.0/0 | 22:22 | None | 310c16a0-6062-46a8-b056-0326d9299aea | | 426cd691-af75-4c9f-9eaf-8726a5376695 | None | None | | 4e3708dc-0b32-479c-aa16-d3ea209784ce | 4e3708dc-0b32-479c-aa16-d3ea209784ce | | 55ddfd48-2bcf-4ebe-90e6-9aca55a2aff3 | None | None | | None | 310c16a0-6062-46a8-b056-0326d9299aea | | 5688a833-5b5b-49a8-a02a-12ea32c7db27 | None | None | | None | 4e3708dc-0b32-479c-aa16-d3ea209784ce | | 5e81e02e-1218-4545-8bb5-16f4844e63e7 | None | None | | 4e3708dc-0b32-479c-aa16-d3ea209784ce | 4e3708dc-0b32-479c-aa16-d3ea209784ce | | 7509defd-1da8-458f-a60b-701100de5c24 | None | None | | None | 310c16a0-6062-46a8-b056-0326d9299aea | | b189adbe-3d00-4566-aab6-418339f2f028 | tcp | 0.0.0.0/0 | 22:22 | None | 4e3708dc-0b32-479c-aa16-d3ea209784ce | +--------------------------------------+-------------+-----------+------------+--------------------------------------+--------------------------------------+ |
| [5] | インスタンスにログインします。 |
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ubuntu@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 SHA256:9+uRjCfd1wMMhnl055bzIFcHYGgVx7/8zwWBmXJgfdA.
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 18.04.1 LTS (GNU/Linux 4.15.0-34-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Thu Sep 13 15:24:46 JST 2018
System load: 0.45 Processes: 89
Usage of /: 19.7% of 8.80GB Users logged in: 0
Memory usage: 6% IP address for ens3: 10.0.0.210
Swap usage: 0%
* Read about Ubuntu updates for L1 Terminal Fault Vulnerabilities
(L1TF).
- https://ubu.one/L1TF
* Want to make a highly secure kiosk, smart display or touchscreen?
Here's a step-by-step tutorial for a rainy weekend, or a startup.
- https://bit.ly/secure-kiosk
3 packages can be updated.
0 updates are security updates.
ubuntu@ubuntu-1804:~$ # ログインできた
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