OpenStack Newton : Neutron ネットワーク構成(FLAT)2016/11/17 |
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OpenStack Network Service（Neutron）による仮想ネットワークの構成です。
また、Network ノードと Compute ノードはネットワークインターフェースを二つ持っていることを前提とします。
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+-------------+ +----+----+
| Name Server | | Gateway |
+------+------+ +----+----+
|10.0.0.10 |10.0.0.1
| |
+------------+-----------------+------------------+
| | | | 10.0.0.200-10.0.0.250
eth0|10.0.0.30 | eth0|10.0.0.50 | +-----------------+
+--------+---------+ | +-----------+----------+ | +---| Virtual Machine |
| [ Control Node ] | | | [ Network Node ] | | | +-----------------+
| Keystone | | | DHCP Agent | | | +-----------------+
| Glance | | | L3 Agent |eth1 | |---| Virtual Machine |
| Nova API | | | L2 Agent | | | +-----------------+
| Neutron Server | | | Metadata Agent | | | +-----------------+
+------------------+ | +----------------------+ +-----+---| Virtual Machine |
| | +-----------------+
| +----------------------+ | +-----------------+
| eth0| [ Compute Node ] | |---| Virtual Machine |
+-----| Nova Compute |eth1 | +-----------------+
10.0.0.51| L2 Agent | | +-----------------+
+----------------------+ +---| Virtual Machine |
+-----------------+
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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 # 154行目：追記 [ml2_type_flat]
flat_networks = physnet1
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 133行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
# 176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、ここでは Control ノード上で作業します。 |
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root@dlp ~(keystone)#
tenantID=`openstack project list | grep service | awk '{print $2}'` # 「sharednet1」という名前のネットワークを作成 root@dlp ~(keystone)# neutron net-create --tenant-id $tenantID sharednet1 \ --shared --provider:network_type flat --provider:physical_network physnet1 Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-11-18T06:59:51Z | | description | | | id | f8ebfce4-3459-4f1a-9afc-2aa940e699fd | | ipv4_address_scope | | | ipv6_address_scope | | | mtu | 1500 | | name | sharednet1 | | port_security_enabled | True | | project_id | e2fed44089aa40dc88f5ae6ed9dfe915 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | | | revision_number | 3 | | router:external | False | | shared | True | | status | ACTIVE | | subnets | | | tags | | | tenant_id | e2fed44089aa40dc88f5ae6ed9dfe915 | | updated_at | 2016-11-18T06:59:51Z | +---------------------------+--------------------------------------+ # 作成した「sharednet1」に「10.0.0.0/24」のサブネットを作成 root@dlp ~(keystone)# neutron subnet-create \ --tenant-id $tenantID --gateway 10.0.0.1 --allocation-pool start=10.0.0.200,end=10.0.0.250 \ --dns-nameserver 10.0.0.1 sharednet1 10.0.0.0/24 Created a new subnet:
+-------------------+----------------------------------------------+
| Field | Value |
+-------------------+----------------------------------------------+
| allocation_pools | {"start": "10.0.0.200", "end": "10.0.0.250"} |
| cidr | 10.0.0.0/24 |
| created_at | 2016-11-18T07:13:16Z |
| description | |
| dns_nameservers | 10.0.0.1 |
| enable_dhcp | True |
| gateway_ip | 10.0.0.1 |
| host_routes | |
| id | d1a496c3-6f7c-46d6-9c29-826fd8039512 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | f8ebfce4-3459-4f1a-9afc-2aa940e699fd |
| project_id | e2fed44089aa40dc88f5ae6ed9dfe915 |
| revision_number | 2 |
| service_types | |
| subnetpool_id | |
| tenant_id | e2fed44089aa40dc88f5ae6ed9dfe915 |
| updated_at | 2016-11-18T07:13:16Z |
+-------------------+----------------------------------------------+
# 設定確認 root@dlp ~(keystone)# neutron net-list +--------------------------------+------------+--------------------------------+ | id | name | subnets | +--------------------------------+------------+--------------------------------+ | f8ebfce4-3459-4f1a-9afc- | sharednet1 | d1a496c3-6f7c- | | 2aa940e699fd | | 46d6-9c29-826fd8039512 | | | | 10.0.0.0/24 | +--------------------------------+------------+--------------------------------+ |
| [3] | 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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root@dlp ~(keystone)# netID=`neutron net-list | grep sharednet1 | awk '{print $2}'` root@dlp ~(keystone)# openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 7d0cf100-6017-448c-9a6b-5bcf20d93f73 | Ubuntu1604 | active | +--------------------------------------+------------+--------+
root@dlp ~(keystone)#
root@dlp ~(keystone)# openstack server create --flavor m1.small --image Ubuntu1604 --security-group default --nic net-id=$netID Ubuntu_1604
openstack server list +--------------------+-------------+--------+---------------------+------------+ | ID | Name | Status | Networks | Image Name | +--------------------+-------------+--------+---------------------+------------+ | ac239720-867d-49d5 | Ubuntu_1604 | ACTIVE | sharednet1=10.0.0.2 | Ubuntu1604 | | -b8f5-1c387a5f95e0 | | | 07 | | +--------------------+-------------+--------+---------------------+------------+ |
| [4] | 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)# neutron security-group-rule-create --direction ingress --protocol icmp default Created a new security_group_rule: +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2016-11-18T07:18:26Z | | description | | | direction | ingress | | ethertype | IPv4 | | id | 6580784f-03d5-441e-ba73-44347edf231c | | port_range_max | | | port_range_min | | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | protocol | icmp | | remote_group_id | | | remote_ip_prefix | | | revision_number | 1 | | security_group_id | 6f9266c8-881f-42df-a071-5ee1858a28ed | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T07:18:26Z | +-------------------+--------------------------------------+ # SSH 許可 root@dlp ~(keystone)# neutron security-group-rule-create --direction ingress --protocol tcp --port_range_min 22 --port_range_max 22 default Created a new security_group_rule: +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2016-11-18T07:18:41Z | | description | | | direction | ingress | | ethertype | IPv4 | | id | 832fea91-92cd-4da2-9a00-a6f2ff4881d6 | | port_range_max | 22 | | port_range_min | 22 | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | protocol | tcp | | remote_group_id | | | remote_ip_prefix | | | revision_number | 1 | | security_group_id | 6f9266c8-881f-42df-a071-5ee1858a28ed | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T07:18:41Z | +-------------------+--------------------------------------+root@dlp ~(keystone)# neutron security-group-rule-list +------------+----------------+-----------+-----------+---------------+---------------+ | id | security_group | direction | ethertype | port/protocol | remote | +------------+----------------+-----------+-----------+---------------+---------------+ | 14bcbec0-3 | default | ingress | IPv4 | any | default | | 8e6-44df-8 | | | | | (group) | | 211-d8d61d | | | | | | | 97697a | | | | | | | 26fcb8ad- | default | ingress | IPv6 | any | default | | f6de-4264 | | | | | (group) | | -988f-b996 | | | | | | | f70976bb | | | | | | | 3a3ca4b0-4 | default | egress | IPv6 | any | any | | dba-4704-8 | | | | | | | 0e8-8df82c | | | | | | | 4a560f | | | | | | | 5a553435-3 | default | egress | IPv4 | any | any | | 059-4602-9 | | | | | | | 626-833fbb | | | | | | | 7e2d79 | | | | | | | 6580784f- | default | ingress | IPv4 | icmp | any | | 03d5-441e- | | | | | | | ba73-44347 | | | | | | | edf231c | | | | | | | 832fea91 | default | ingress | IPv4 | 22/tcp | any | | -92cd-4da2 | | | | | | | -9a00-a6f2 | | | | | | | ff4881d6 | | | | | | +------------+----------------+-----------+-----------+---------------+---------------+ |
| [5] | インスタンスにログインします。 |
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root@dlp ~(keystone)# ssh ubuntu@10.0.0.207
The authenticity of host '10.0.0.207 (10.0.0.207)' can't be established.
ECDSA key fingerprint is SHA256:SsoSJR8Mq6olDKmaKKcRhYhdGO9m6GXVhd3RFViSo+E.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.207' (ECDSA) to the list of known hosts.
ubuntu@10.0.0.207's password:
Welcome to Ubuntu 16.04.1 LTS (GNU/Linux 4.4.0-47-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
Last login: Fri Nov 18 10:36:51 2016
ubuntu@localhost:~$ # ログインできた
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