OpenStack Zed : Neutron ネットワークを構成 (FLAT)2023/06/28 |
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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 2 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
------------+--------------------------+--------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ network.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Network Node) | | (Compute Node) |
| | | | | |
| MariaDB RabbitMQ | | Neutron L2/L3 Agent | | Libvirt |
| Memcached Nginx | | Neutron Metadata | | Nova Compute |
| Keystone httpd | | Open vSwitch | | Neutron L2 Agent |
| Glance Nova API | | | | Open vSwitch |
| Neutron Server | | | | |
| Neutron Metadata | | | | |
+-----------------------+ +-----------+-----------+ +-----------+-----------+
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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# ブリッジ追加 root@network:~# ovs-vsctl add-br br-eth1 root@network:~# ip link set br-eth1 up root@network:~# echo -e '\nauto br-eth1\niface br-eth1 inet manual' >> /etc/network/interfaces
# 追加したブリッジのポートに [eth1] を追加 # [eth1] は環境によって異なるため自身の名称に置き換え root@network:~# ovs-vsctl add-port br-eth1 eth1
root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # [ml2_type_flat] セクションに追記 [ml2_type_flat]
flat_networks = physnet1
root@network:~#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # [ovs] セクションに追記 [ovs]
bridge_mappings = physnet1:br-eth1
systemctl restart neutron-openvswitch-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 +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2023-06-28T04:41:20Z | | description | | | dns_domain | None | | id | 6ec54251-7d1b-4da1-9c36-6fe4ea527b79 | | 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 | 2023-06-28T04:41:20Z | +---------------------------+--------------------------------------+ # [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 $projectID --subnet-range 10.0.0.0/24 \ --allocation-pool start=10.0.0.200,end=10.0.0.254 \ --gateway 10.0.0.1 --dns-nameserver 10.0.0.10 +----------------------+--------------------------------------+ | Field | Value | +----------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2023-06-28T04:41:50Z | | description | | | dns_nameservers | 10.0.0.10 | | dns_publish_fixed_ip | None | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 6843ef10-c9c6-412f-8a2e-92de79764e47 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 6ec54251-7d1b-4da1-9c36-6fe4ea527b79 | | project_id | d8b09d86ed7743039f92b2e542ea26c1 | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2023-06-28T04:41:50Z | +----------------------+--------------------------------------+ # 設定確認 root@dlp ~(keystone)# openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | 6ec54251-7d1b-4da1-9c36-6fe4ea527b79 | sharednet1 | 6843ef10-c9c6-412f-8a2e-92de79764e47 | +--------------------------------------+------------+--------------------------------------+ |
| [3] | 任意のユーザーでログインし、作成したネットワークをインスタンスに関連付けてインスタンスを作成/起動します。 |
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# 利用可能な [flavor] 確認 debian@dlp ~(keystone)$ openstack flavor list +----+-----------+------+------+-----------+-------+-----------+ | ID | Name | RAM | Disk | Ephemeral | VCPUs | Is Public | +----+-----------+------+------+-----------+-------+-----------+ | 1 | m1.small | 2048 | 10 | 0 | 1 | True | | 2 | m1.medium | 4096 | 10 | 0 | 2 | True | | 3 | m1.large | 8192 | 10 | 0 | 4 | True | | 4 | m2.large | 8192 | 10 | 10 | 4 | True | | 5 | m3.large | 8192 | 20 | 0 | 4 | True | +----+-----------+------+------+-----------+-------+-----------+ # 利用可能なイメージ確認 debian@dlp ~(keystone)$ openstack image list +--------------------------------------+----------+--------+ | ID | Name | Status | +--------------------------------------+----------+--------+ | 3a660af6-3f41-4c0f-b2a8-55127dfc3c60 | Debian12 | active | +--------------------------------------+----------+--------+ # 利用可能なネットワーク確認 debian@dlp ~(keystone)$ openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | 6ec54251-7d1b-4da1-9c36-6fe4ea527b79 | sharednet1 | 6843ef10-c9c6-412f-8a2e-92de79764e47 | +--------------------------------------+------------+--------------------------------------+ # インスタンス用のセキュリティグループを作成 debian@dlp ~(keystone)$ openstack security group create secgroup01 +-----------------+-----------------------------------------------------------------------------+ | Field | Value | +-----------------+-----------------------------------------------------------------------------+ | created_at | 2023-06-28T04:47:25Z | | description | secgroup01 | | id | bd1040a7-caab-477e-a1bb-add49bb8f16a | | name | secgroup01 | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | revision_number | 1 | | rules | created_at='2023-06-28T04:47:25Z', direction='egress', ethertype='IPv4',... | | | created_at='2023-06-28T04:47:25Z', direction='egress', ethertype='IPv6',... | | stateful | True | | tags | [] | | updated_at | 2023-06-28T04:47:25Z | +-----------------+-----------------------------------------------------------------------------+ # インスタンス接続用の SSH キーペア作成 debian@dlp ~(keystone)$ ssh-keygen -q -N "" Enter file in which to save the key (/home/debian/.ssh/id_rsa): # 公開鍵登録 debian@dlp ~(keystone)$ openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey +-------------+-------------------------------------------------+ | Field | Value | +-------------+-------------------------------------------------+ | created_at | None | | fingerprint | 7d:e7:1f:33:80:d7:85:02:43:a9:07:52:b5:cd:be:3d | | id | mykey | | is_deleted | None | | name | mykey | | type | ssh | | user_id | de51d5f0ee2c485885877d21f5b424e0 | +-------------+-------------------------------------------------+debian@dlp ~(keystone)$ netID=$(openstack network list | grep sharednet1 | awk '{ print $2 }')
debian@dlp ~(keystone)$
debian@dlp ~(keystone)$ openstack server create --flavor m1.medium --image Debian12 --security-group secgroup01 --nic net-id=$netID --key-name mykey Debian-12
openstack server list +--------------------------------------+-----------+--------+-----------------------+----------+-----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-----------+--------+-----------------------+----------+-----------+ | 83cb43d6-1078-4a52-9530-2fa6f2d94a4c | Debian-12 | ACTIVE | sharednet1=10.0.0.233 | Debian12 | m1.medium | +--------------------------------------+-----------+--------+-----------------------+----------+-----------+ |
| [4] | 起動した仮想マシンインスタンスに SSH 接続できるように、先に作成したセキュリティグループにポート許可の設定を追加します。 |
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# ICMP 許可 debian@dlp ~(keystone)$ openstack security group rule create --protocol icmp --ingress secgroup01 +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | created_at | 2023-06-28T04:50:12Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 3c94d258-49ad-4074-9674-f5ab2f857881 | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | protocol | icmp | | remote_address_group_id | None | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | bd1040a7-caab-477e-a1bb-add49bb8f16a | | tags | [] | | updated_at | 2023-06-28T04:50:12Z | +-------------------------+--------------------------------------+ # SSH 許可 debian@dlp ~(keystone)$ openstack security group rule create --protocol tcp --dst-port 22:22 secgroup01 +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | created_at | 2023-06-28T04:50:30Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 7dcb363a-130b-4c0a-a0b3-17e1ad4ab3c5 | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 1c2f5dc8c4f9494fbaaa4217c8e3585a | | protocol | tcp | | remote_address_group_id | None | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | bd1040a7-caab-477e-a1bb-add49bb8f16a | | tags | [] | | updated_at | 2023-06-28T04:50:30Z | +-------------------------+--------------------------------------+debian@dlp ~(keystone)$ openstack security group rule list secgroup01 +--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+ | ID | IP Protocol | Ethertype | IP Range | Port Range | Direction | Remote Security Group | Remote Address Group | +--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+ | 3c94d258-49ad-4074-9674-f5ab2f857881 | icmp | IPv4 | 0.0.0.0/0 | | ingress | None | None | | 3d38e938-713c-47c6-8a97-ada9d5a734c8 | None | IPv4 | 0.0.0.0/0 | | egress | None | None | | 7dcb363a-130b-4c0a-a0b3-17e1ad4ab3c5 | tcp | IPv4 | 0.0.0.0/0 | 22:22 | ingress | None | None | | c11e0dd7-6758-4cf7-b3f2-11359b1a6dea | None | IPv6 | ::/0 | | egress | None | None | +--------------------------------------+-------------+-----------+-----------+------------+-----------+-----------------------+----------------------+ |
| [5] | インスタンスにログインします。 |
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debian@dlp ~(keystone)$ ssh debian@10.0.0.233 The authenticity of host '10.0.0.233 (10.0.0.233)' can't be established. ED25519 key fingerprint is SHA256:phXOxksramH0+duqQbpQtP07Pj8J1/f2vKv/v7hL8QI. This key is not known by any other names. Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added '10.0.0.233' (ED25519) to the list of known hosts. Linux debian-12 6.1.0-9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.27-1 (2023-05-08) 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. Last login: Tue Jun 27 23:52:21 2023 debian@debian-12:~$ # ログインできた |
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