OpenStack Queens : Neutron ネットワークを構成する (FLAT)2018/06/15 |
|
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 |eth1
|
| [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。 |
|
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。 |
|
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 | 2018-06-15T07:22:26Z | | description | | | dns_domain | None | | id | bfc23d8f-24ce-4a92-97d2-03ad411f2a40 | | 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 | fa8bf7aca73e44cb9bc2c9f42859857e | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 2 | | router:external | Internal | | segments | None | | shared | True | | status | ACTIVE | | subnets | | | tags | | | updated_at | 2018-06-15T07:22:26Z | +---------------------------+--------------------------------------+ # [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 $projectID --subnet-range 10.0.0.0/24 \ --allocation-pool start=10.0.0.200,end=10.0.0.254 \ --gateway 10.0.0.1 --dns-nameserver 10.0.0.10 Created a new subnet: +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2018-06-15T07:22:52Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 64253ec7-2ee5-492e-b658-ce3ce4ac9936 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | bfc23d8f-24ce-4a92-97d2-03ad411f2a40 | | project_id | fa8bf7aca73e44cb9bc2c9f42859857e | | revision_number | 0 | | segment_id | None | | service_types | | | subnetpool_id | None | | tags | | | updated_at | 2018-06-15T07:22:52Z | +-------------------+--------------------------------------+ # 設定確認 root@dlp ~(keystone)# openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | bfc23d8f-24ce-4a92-97d2-03ad411f2a40 | sharednet1 | 64253ec7-2ee5-492e-b658-ce3ce4ac9936 | +--------------------------------------+------------+--------------------------------------+ |
| [3] | 任意のユーザーでログインし、作成したネットワークをインスタンスに紐付けてインスタンスを作成・起動します。 |
|
# 利用可能な flavor 確認 ubuntu@dlp ~(keystone)$ 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 | +--------------------------------------+------------+--------+ | bb285a87-fe42-449a-a659-b5a304177b18 | Ubuntu1804 | active | +--------------------------------------+------------+--------+ # 利用可能なネットワーク確認 ubuntu@dlp ~(keystone)$ openstack network list +--------------------------------------+------------+--------------------------------------+ | ID | Name | Subnets | +--------------------------------------+------------+--------------------------------------+ | bfc23d8f-24ce-4a92-97d2-03ad411f2a40 | sharednet1 | 64253ec7-2ee5-492e-b658-ce3ce4ac9936 | +--------------------------------------+------------+--------------------------------------+ # 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 | 2018-06-15T07:26:14Z | | description | secgroup01 | | id | f1713a90-8389-4d42-a61c-7781fdb2a903 | | name | secgroup01 | | project_id | 9b4516711a0a4543ba5adfe7510ea1a1 | | revision_number | 2 | | rules | created_at='2018-06-15T07:26:14Z', direction='egress', ethertype='IPv4', id='6... | | | created_at='2018-06-15T07:26:14Z', direction='egress', ethertype='IPv6', id='e... | | updated_at | 2018-06-15T07:26:14Z | +-----------------+-----------------------------------------------------------------------------------+ # 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 | f5:17:31:c3:eb:90:dc:d5:e4:50:41:47:8c:cb:55:3b | | name | mykey | | user_id | a212f017161d42228c47b3aef27f9f6c | +-------------+-------------------------------------------------+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=$netID --key-name mykey Ubuntu_1804
openstack server list +--------------------------------------+-------------+--------+-----------------------+------------+----------+ | ID | Name | Status | Networks | Image | Flavor | +--------------------------------------+-------------+--------+-----------------------+------------+----------+ | 833834ef-de72-4a48-90d8-25ac6beacc9f | Ubuntu_1804 | ACTIVE | sharednet1=10.0.0.208 | Ubuntu1804 | m1.small | +--------------------------------------+-------------+--------+-----------------------+------------+----------+ |
| [4] | 起動した仮想マシンインスタンスに SSH 接続できるように、先に作成したセキュリティグループにポート許可の設定を追加します。 |
|
# ICMP 許可 ubuntu@dlp ~(keystone)$ openstack security group rule create --protocol icmp --ingress default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2018-06-15T07:41:06Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | c949ae40-65b4-4be6-a375-054749815b7d | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 9b4516711a0a4543ba5adfe7510ea1a1 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | f5ddf9ce-9c8d-4c78-95ea-1099e294274c | | updated_at | 2018-06-15T07:41:06Z | +-------------------+--------------------------------------+ # SSH 許可 ubuntu@dlp ~(keystone)$ openstack security group rule create --protocol tcp --dst-port 22:22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2018-06-15T07:41:19Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 4a75366e-cacc-49b6-b2bd-8fe94873778c | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 9b4516711a0a4543ba5adfe7510ea1a1 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 0 | | security_group_id | f5ddf9ce-9c8d-4c78-95ea-1099e294274c | | updated_at | 2018-06-15T07:41:19Z | +-------------------+--------------------------------------+ubuntu@dlp ~(keystone)$ openstack security group rule list +----------+-------------+-----------+------------+--------------------------------------+-------------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Group | +----------+-------------+-----------+------------+--------------------------------------+-------------------+ | 2792d... | None | None | | f5ddf9ce-9c8d-4c78-95ea-1099e294274c | f5ddf9ce-9c8d-... | | 3303e... | None | None | | None | f5ddf9ce-9c8d-... | | 4a753... | tcp | 0.0.0.0/0 | 22:22 | None | f5ddf9ce-9c8d-... | | 6b888... | None | None | | None | f1713a90-8389-... | | b14b0... | None | None | | f5ddf9ce-9c8d-4c78-95ea-1099e294274c | f5ddf9ce-9c8d-... | | b6051... | None | None | | None | f5ddf9ce-9c8d-... | | c949a... | icmp | 0.0.0.0/0 | | None | f5ddf9ce-9c8d-... | | e8077... | None | None | | None | f1713a90-8389-... | +----------+-------------+-----------+------------+--------------------------------------+-------------------+ |
| [5] | インスタンスにログインします。 |
|
ubuntu@dlp ~(keystone)$ ssh ubuntu@10.0.0.208
The authenticity of host '10.0.0.208 (10.0.0.208)' can't be established.
ECDSA key fingerprint is SHA256:/23tlmEk91VOrjfJwpxJLcJo1KSaSHoO9VuAu1uFrgw.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.208' (ECDSA) to the list of known hosts.
Welcome to Ubuntu 18.04 LTS (GNU/Linux 4.15.0-23-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Fri Jun 15 16:43:04 JST 2018
System load: 0.14 Processes: 89
Usage of /: 19.5% of 8.80GB Users logged in: 0
Memory usage: 6% IP address for ens3: 10.0.0.208
Swap usage: 0%
23 packages can be updated.
18 updates are security updates.
ubuntu@ubuntu-1804:~$ # ログインできた
|
| Sponsored Link |
|
|