OpenStack Ocata : Neutron ネットワークを構成する (VLAN)2017/02/28 |
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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、VLAN 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 ノードが三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。
Compute ノードは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。
------------+--------------------------------+--------------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | eth1| Open vSwitch |eth2 | Libvirt |eth1
| Memcached httpd | -----+ L2,L3,Metadata Agent +----- | Nova Compute +-----
| Keystone Glance | | | | Open vSwitch |
| Nova API | | | | L2 Agent |
| Neutron Server | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Control ノードで以下のように設定変更します。 |
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[root@dlp ~(keystone)]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 115行目：tenant_network_types に値を追記 [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = vlan
# 207行目：追記 [ml2_type_vlan] network_vlan_ranges = physnet1:1000:2999
systemctl restart neutron-server |
| [2] | Network ノード、および、Compute ノードの両方で以下のように設定変更します。 |
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# ブリッジ追加 [root@network ~]# ovs-vsctl add-br br-eth1 # 追加したブリッジのポートにeth1を追加 [root@network ~]# ovs-vsctl add-port br-eth1 eth1
[root@network ~]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 115行目：tenant_network_types に値を追記 [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = vlan
# 207行目：追記 [ml2_type_vlan] network_vlan_ranges = physnet1:1000:2999
[root@network ~]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # 193行目：追記 [ovs]
bridge_mappings = physnet1:br-eth1
systemctl restart neutron-openvswitch-agent |
| [3] | Network ノードで外部接続用のブリッジの作成と定義をします。 |
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[root@network ~]# ovs-vsctl add-br br-ext [root@network ~]# ovs-vsctl add-port br-ext eth2
[root@network ~]#
vi /etc/neutron/l3_agent.ini # 100行目：追記 external_network_bridge = br-ext
systemctl restart neutron-l3-agent |
| [4] | 仮想ルータを作成します。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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# 仮想ルーター作成 [root@dlp ~(keystone)]# openstack router create router01 +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-04T11:23:06Z | | description | | | distributed | False | | external_gateway_info | None | | flavor_id | None | | ha | False | | id | f62df3d6-a047-40e2-9241-0b0e25ef17a9 | | name | router01 | | project_id | c654e2e098b14356b97b6e613775cc54 | | revision_number | None | | routes | | | status | ACTIVE | | updated_at | 2017-03-04T11:23:06Z | +-------------------------+--------------------------------------+ |
| [5] | 内部用のネットワークを作成し、仮想ルーターに関連付けます。 |
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# 内部用ネットワーク作成 [root@dlp ~(keystone)]# openstack network create int_net +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-04T11:23:20Z | | description | | | dns_domain | None | | id | 01d68d9e-ff56-429c-828a-6c992ce0530e | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | None | | mtu | 1500 | | name | int_net | | port_security_enabled | True | | project_id | c654e2e098b14356b97b6e613775cc54 | | provider:network_type | vlan | | provider:physical_network | physnet1 | | provider:segmentation_id | 1049 | | qos_policy_id | None | | revision_number | 3 | | router:external | Internal | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | updated_at | 2017-03-04T11:23:20Z | +---------------------------+--------------------------------------+ # 内部用ネットワークにサブネット作成 [root@dlp ~(keystone)]# openstack subnet create subnet1 --network int_net \ --subnet-range 192.168.100.0/24 --gateway 192.168.100.1 \ --dns-nameserver 10.0.0.10 +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 192.168.100.2-192.168.100.254 | | cidr | 192.168.100.0/24 | | created_at | 2017-03-04T11:24:25Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 192.168.100.1 | | host_routes | | | id | 5001e44a-7552-42cc-8521-fc916613a2b6 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 01d68d9e-ff56-429c-828a-6c992ce0530e | | project_id | c654e2e098b14356b97b6e613775cc54 | | revision_number | 2 | | segment_id | None | | service_types | | | subnetpool_id | None | | updated_at | 2017-03-04T11:24:25Z | +-------------------+--------------------------------------+ # 仮想ルーターに内部ネットワークを設定 [root@dlp ~(keystone)]# openstack router add subnet router01 subnet1
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| [6] | 外部接続用のネットワークを作成し、仮想ルーターに関連付けます。 |
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# 外部用ネットワーク作成 [root@dlp ~(keystone)]# openstack network create --external ext_net +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-04T11:24:53Z | | description | | | dns_domain | None | | id | 6c7c7ff9-702d-4379-9434-909b797ead58 | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | c654e2e098b14356b97b6e613775cc54 | | provider:network_type | vlan | | provider:physical_network | physnet1 | | provider:segmentation_id | 1022 | | qos_policy_id | None | | revision_number | 4 | | router:external | External | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | updated_at | 2017-03-04T11:24:54Z | +---------------------------+--------------------------------------+ # 外部用ネットワークにサブネット作成 [root@dlp ~(keystone)]# openstack subnet create subnet2 \ --network ext_net --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 | 2017-03-04T11:26:01Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 10.0.0.1 | | host_routes | | | id | ca5afde6-96ea-4e14-8802-be9609f94e9f | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet2 | | network_id | 6c7c7ff9-702d-4379-9434-909b797ead58 | | project_id | c654e2e098b14356b97b6e613775cc54 | | revision_number | 2 | | segment_id | None | | service_types | | | subnetpool_id | None | | updated_at | 2017-03-04T11:26:01Z | +-------------------+--------------------------------------+ # 仮想ルーターにゲートウェイを設定 [root@dlp ~(keystone)]# openstack router set router01 --external-gateway ext_net |
| [7] | 内部ネットワークを関連付けた仮想マシンインスタンスを作成して起動します。 |
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[root@dlp ~(keystone)]#
[root@dlp ~(keystone)]# Int_Net_ID=`openstack network list | grep int_net | awk '{ print $2 }'` openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | c13b45a8-5664-4169-93c7-625ae2e561e9 | CentOS7 | active | +--------------------------------------+---------+--------+[root@dlp ~(keystone)]# openstack server create --flavor m1.small --image CentOS7 --security-group default --nic net-id=$Int_Net_ID CentOS_7 [root@dlp ~(keystone)]# openstack server list +-----------+----------+--------+------------------------+------------+ | ID | Name | Status | Networks | Image Name | +-----------+----------+--------+------------------------+------------+ | e5a31503- | CentOS_7 | ACTIVE | int_net=192.168.100.11 | CentOS7 | +-----------+----------+--------+------------------------+------------+ |
| [8] | 作成した仮想マシンインスタンスにフローティングIP を割り当てます。 |
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[root@dlp ~(keystone)]# openstack floating ip create ext_net +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-03-04T11:27:26Z | | description | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.208 | | floating_network_id | 6c7c7ff9-702d-4379-9434-909b797ead58 | | id | f403f159-15dd-4c50-a3e4-9dec1f1aec15 | | name | None | | port_id | None | | project_id | c654e2e098b14356b97b6e613775cc54 | | revision_number | 1 | | router_id | None | | status | DOWN | | updated_at | 2017-03-04T11:27:26Z | +---------------------+--------------------------------------+[root@dlp ~(keystone)]# openstack server add floating ip CentOS_7 10.0.0.208 # 設定確認 [root@dlp ~(keystone)]# openstack floating ip show 10.0.0.208 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-03-04T11:27:26Z | | description | | | fixed_ip_address | 192.168.100.8 | | floating_ip_address | 10.0.0.208 | | floating_network_id | 6c7c7ff9-702d-4379-9434-909b797ead58 | | id | f403f159-15dd-4c50-a3e4-9dec1f1aec15 | | name | None | | port_id | 35932c46-4cce-4b8e-bc5e-813b712a5ec3 | | project_id | c654e2e098b14356b97b6e613775cc54 | | revision_number | 2 | | router_id | f62df3d6-a047-40e2-9241-0b0e25ef17a9 | | status | ACTIVE | | updated_at | 2017-03-04T11:27:50Z | +---------------------+--------------------------------------+[root@dlp ~(keystone)]# openstack server list +-----------+----------+--------+------------------------------------+------------+ | ID | Name | Status | Networks | Image Name | +-----------+----------+--------+------------------------------------+------------+ | 7587ad83- | CentOS_7 | ACTIVE | int_net=192.168.100.11, 10.0.0.208 | CentOS7 | +-----------+----------+--------+------------------------------------+------------+ |
| [9] | 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)]# openstack security group rule create --protocol icmp --ingress default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-02-28T07:54:12Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 180e4ec7-9221-42fb-bdba-382c5a06a8f4 | | name | None | | port_range_max | None | | port_range_min | None | | project_id | c654e2e098b14356b97b6e613775cc54 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | 160e1d9e-72b9-4ed3-a434-276518f22a7b | | updated_at | 2017-02-28T07:54:12Z | +-------------------+--------------------------------------+ # SSH 許可 [root@dlp ~(keystone)]# openstack security group rule create --protocol tcp --dst-port 22:22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-02-28T07:55:14Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 93a858de-87b5-4544-8d23-ef4f24da5f3b | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | c654e2e098b14356b97b6e613775cc54 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | 160e1d9e-72b9-4ed3-a434-276518f22a7b | | updated_at | 2017-02-28T07:55:14Z | +-------------------+--------------------------------------+[root@dlp ~(keystone)]# openstack security group rule list +-------------------+-------------+-----------+------------+--------------------------------------+--------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Gro | +-------------------+-------------+-----------+------------+--------------------------------------+--------------+ | 180e4ec7-9221-... | icmp | 0.0.0.0/0 | | None | 160e1d9e-... | | 29b38eb3-2004-... | None | None | | 160e1d9e-72b9-4ed3-a434-276518f22a7b | 160e1d9e-... | | 93a858de-87b5-... | tcp | 0.0.0.0/0 | 22:22 | None | 160e1d9e-... | | 9f86c90e-6357-... | None | None | | None | 160e1d9e-... | | a1feacc0-c8ea-... | None | None | | None | 160e1d9e-... | | f46d96c3-235a-... | None | None | | 160e1d9e-72b9-4ed3-a434-276518f22a7b | 160e1d9e-... | +-------------------+-------------+-----------+------------+--------------------------------------+--------------+ |
| [10] | 仮想マシンインスタンスに割りあてられたフローティング IP 宛てに SSH 接続することで、インスタンスにログインできます。 |
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[root@dlp ~(keystone)]# openstack server list +-----------+----------+--------+------------------------------------+------------+ | ID | Name | Status | Networks | Image Name | +-----------+----------+--------+------------------------------------+------------+ | 7587ad83- | CentOS_7 | ACTIVE | int_net=192.168.100.11, 10.0.0.208 | CentOS7 | +-----------+----------+--------+------------------------------------+------------+[root@dlp ~(keystone)]# ssh 10.0.0.208
The authenticity of host '10.0.0.208 (10.0.0.208)' can't be established.
ECDSA key fingerprint is xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx.
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.
root@10.0.0.208's password:
Last login: Wed Mar 1 16:30:10 2017
[root@host-192-168-100-11 ~]# # ログインできた
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