OpenStack Liberty : Neutron ネットワーク構成(FLAT)2015/12/27 |
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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 # 66行目あたり：追記 [ml2_type_flat]
flat_networks = physnet1
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 2行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
initctl restart neutron-plugin-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 | | id | 440891ad-4d07-4536-90f1-f871d85d8eb7 | | mtu | 0 | | name | sharednet1 | | port_security_enabled | True | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | | | router:external | False | | shared | True | | status | ACTIVE | | subnets | | | tenant_id | ba3f5997c2474c13b36e6f6bc47a264c | +---------------------------+--------------------------------------+ # 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 --dns-nameserver 10.0.0.1 \ --allocation-pool start=10.0.0.200,end=10.0.0.250 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 |
| dns_nameservers | 10.0.0.1 |
| enable_dhcp | True |
| gateway_ip | 10.0.0.1 |
| host_routes | |
| id | f135f571-9494-4c22-b84a-957bf4c52a6a |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | 440891ad-4d07-4536-90f1-f871d85d8eb7 |
| subnetpool_id | |
| tenant_id | ba3f5997c2474c13b36e6f6bc47a264c |
+-------------------+----------------------------------------------+
# 設定確認 root@dlp ~(keystone)# neutron net-list +--------------------------------------+------------+--------------------------------------------------+ | id | name | subnets | +--------------------------------------+------------+--------------------------------------------------+ | 440891ad-4d07-4536-90f1-f871d85d8eb7 | sharednet1 | f135f571-9494-4c22-b84a-957bf4c52a6a 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 $2}'` root@dlp ~(keystone)# nova image-list +--------------------------------------+------------+--------+--------+ | ID | Name | Status | Server | +--------------------------------------+------------+--------+--------+ | f29a589b-595a-4f0c-bbce-f6f3537f2a7c | Ubuntu1404 | ACTIVE | | +--------------------------------------+------------+--------+--------+
root@dlp ~(keystone)#
root@dlp ~(keystone)# nova boot --flavor 2 --image Ubuntu1404 --security_group default --nic net-id=$netID Ubuntu_1404
nova list +-----------+-------------+--------+------------+-------------+-----------------------+ | ID | Name | Status | Task State | Power State | Networks | +-----------+-------------+--------+------------+-------------+-----------------------+ | df1aafb6- | Ubuntu_1404 | ACTIVE | - | Running | sharednet1=10.0.0.201 | +-----------+-------------+--------+------------+-------------+-----------------------+ |
| [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 | +-------------------+--------------------------------------+ | direction | ingress | | ethertype | IPv4 | | id | eb5f5557-397b-4662-aa28-a85e67a6d5c1 | | port_range_max | | | port_range_min | | | protocol | icmp | | remote_group_id | | | remote_ip_prefix | | | security_group_id | 29cb0389-e33a-4e65-9db5-6e3e18901a07 | | tenant_id | fa7d34414b8c45c4a2fdc29403fb5cd2 | +-------------------+--------------------------------------+ # 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 | +-------------------+--------------------------------------+ | direction | ingress | | ethertype | IPv4 | | id | 96c37376-3cd2-4499-abb0-cb6efc0702fd | | port_range_max | 22 | | port_range_min | 22 | | protocol | tcp | | remote_group_id | | | remote_ip_prefix | | | security_group_id | 29cb0389-e33a-4e65-9db5-6e3e18901a07 | | tenant_id | fa7d34414b8c45c4a2fdc29403fb5cd2 | +-------------------+--------------------------------------+root@dlp ~(keystone)# neutron security-group-rule-list +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ | id | security_group | direction | ethertype | protocol/port | remote | +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ | 67c6be2e-640f-4c3b-9b46-367366c0afeb | default | ingress | IPv4 | any | default (group) | | 96c37376-3cd2-4499-abb0-cb6efc0702fd | default | ingress | IPv4 | 22/tcp | any | | a3779b4e-2042-4264-b8d0-3d3ffb5c6fec | default | ingress | IPv6 | any | default (group) | | d8566bc8-46ac-4118-adca-2dd0b3d61893 | default | egress | IPv6 | any | any | | eb5f5557-397b-4662-aa28-a85e67a6d5c1 | default | ingress | IPv4 | icmp | any | | ee3585ff-23fb-42db-baa7-c3271bdd8c77 | default | egress | IPv4 | any | any | +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ |
| [5] | インスタンスにログインします。 |
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root@dlp ~(keystone)# ssh trusty@10.0.0.201
The authenticity of host '10.0.0.201 (10.0.0.201)' can't be established.
ECDSA key fingerprint is 16:b5:42:59:1c:f1:9f:0f:fa:2b:27:70:7b:c3:44:7f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.201' (ECDSA) to the list of known hosts.
trusty@10.0.0.201's password:
Welcome to Ubuntu 14.04.3 LTS (GNU/Linux 3.13.0-74-generic x86_64)
* Documentation: https://help.ubuntu.com/
0 packages can be updated.
0 updates are security updates.
Last login: Mon Dec 28 22:43:11 2015
trusty@ubuntu:~$ # ログインできた
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