OpenStack Newton : Neutron ネットワーク構成 (VLAN)2016/10/23 |
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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、ここでは、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。さらに、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
| |
+------------+-----------------+------------------------+
| | | |
| | | 10.0.0.200-10.0.0.254
eth0|10.0.0.30 | 10.0.0.50| eth0 +--------+-------+
+--------+---------+ | +-----------+----------+ | Virtual Router |
| [ Control Node ] | | | [ Network Node ] | +--------+-------+
| Keystone | | | DHCP Agent | 192.168.100.1
| Glance | | eth2| L3 Agent |eth1 | 192.168.100.0/24
| Nova API | | | L2 Agent | | +-----------------+
| Neutron Server | | | Metadata Agent | | +---| Virtual Machine |
+------------------+ | +----------------------+ | | +-----------------+
| | | +-----------------+
| +----------------------+ +-------+---| Virtual Machine |
| eth0| [ Compute Node ] |eth1 | +-----------------+
+-----| Nova Compute | | +-----------------+
10.0.0.51| L2 Agent | |---| Virtual Machine |
+----------------------+ | +-----------------+
| +-----------------+
+---| Virtual Machine |
+-----------------+
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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 # 103行目：tenant_network_types に値を追記 [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = vlan
# 195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 # 103行目：tenant_network_types に値を追記 [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = vlan
# 195行目：追記 [ml2_type_vlan] network_vlan_ranges = physnet1:1000:2999
[root@network ~]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # 181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ておきます。 |
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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 # 98行目：追記 external_network_bridge = br-ext
systemctl restart neutron-l3-agent |
| [4] | 仮想ルータを作成しておきます。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)]# neutron router-create router01 Created a new router: +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-10-25T08:00:46Z | | description | | | distributed | False | | external_gateway_info | | | flavor_id | | | ha | False | | id | 0d8e7dfe-ee7a-4761-a7c3-dfbc5bd6d417 | | name | router01 | | project_id | 150e205a8791426e8028a94699fb8848 | | revision_number | 2 | | routes | | | status | ACTIVE | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T08:00:46Z | +-------------------------+--------------------------------------+[root@dlp ~(keystone)]# Router_ID=`neutron router-list | grep router01 | awk '{ print $2 }'` |
| [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)]# neutron net-create int_net Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-10-25T08:01:10Z | | description | | | id | cb956039-19e4-49d2-b2d3-6a1327c7b691 | | ipv4_address_scope | | | ipv6_address_scope | | | mtu | 1500 | | name | int_net | | port_security_enabled | True | | project_id | 150e205a8791426e8028a94699fb8848 | | provider:network_type | vlan | | provider:physical_network | physnet1 | | provider:segmentation_id | 1066 | | revision_number | 3 | | router:external | False | | shared | False | | status | ACTIVE | | subnets | | | tags | | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T08:01:11Z | +---------------------------+--------------------------------------+ # 内部用ネットワークにサブネット作成 [root@dlp ~(keystone)]# neutron subnet-create \ --gateway 192.168.100.1 --dns-nameserver 10.0.0.1 int_net 192.168.100.0/24 Created a new subnet:
+-------------------+------------------------------------------------------+
| Field | Value |
+-------------------+------------------------------------------------------+
| allocation_pools | {"start": "192.168.100.2", "end": "192.168.100.254"} |
| cidr | 192.168.100.0/24 |
| created_at | 2016-10-25T08:02:16Z |
| description | |
| dns_nameservers | 10.0.0.1 |
| enable_dhcp | True |
| gateway_ip | 192.168.100.1 |
| host_routes | |
| id | 303fbd3b-eb58-48e7-9508-f74a55e0f3be |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | cb956039-19e4-49d2-b2d3-6a1327c7b691 |
| project_id | 150e205a8791426e8028a94699fb8848 |
| revision_number | 2 |
| service_types | |
| subnetpool_id | |
| tenant_id | 150e205a8791426e8028a94699fb8848 |
| updated_at | 2016-10-25T08:02:17Z |
+-------------------+------------------------------------------------------+
[root@dlp ~(keystone)]#
Int_Subnet_ID=`neutron net-list | grep int_net | awk '{ print $6 }'`
# 仮想ルーターに内部ネットワークを設定 [root@dlp ~(keystone)]# neutron router-interface-add $Router_ID $Int_Subnet_ID Added interface 77dc7a96-a742-403a-9549-70a6d5167561 to router 0d8e7dfe-ee7a-4761-a7c3-dfbc5bd6d417. |
| [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)]# neutron net-create ext_net --router:external Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-10-25T08:02:58Z | | description | | | id | 57841132-2c12-4a8b-b29f-2249eba54471 | | ipv4_address_scope | | | ipv6_address_scope | | | is_default | False | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | 150e205a8791426e8028a94699fb8848 | | provider:network_type | vlan | | provider:physical_network | physnet1 | | provider:segmentation_id | 1012 | | revision_number | 3 | | router:external | True | | shared | False | | status | ACTIVE | | subnets | | | tags | | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T08:02:58Z | +---------------------------+--------------------------------------+ # 外部用ネットワークにサブネット作成 [root@dlp ~(keystone)]# neutron subnet-create ext_net \ --allocation-pool start=10.0.0.200,end=10.0.0.254 \ --gateway 10.0.0.1 --dns-nameserver 10.0.0.1 10.0.0.0/24 --disable-dhcp Created a new subnet:
+-------------------+----------------------------------------------+
| Field | Value |
+-------------------+----------------------------------------------+
| allocation_pools | {"start": "10.0.0.200", "end": "10.0.0.254"} |
| cidr | 10.0.0.0/24 |
| created_at | 2016-10-25T08:04:04Z |
| description | |
| dns_nameservers | 10.0.0.1 |
| enable_dhcp | False |
| gateway_ip | 10.0.0.1 |
| host_routes | |
| id | ea9dfc41-16e9-4f6b-8cd0-6024c3299488 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | 57841132-2c12-4a8b-b29f-2249eba54471 |
| project_id | 150e205a8791426e8028a94699fb8848 |
| revision_number | 2 |
| service_types | |
| subnetpool_id | |
| tenant_id | 150e205a8791426e8028a94699fb8848 |
| updated_at | 2016-10-25T08:04:04Z |
+-------------------+----------------------------------------------+
[root@dlp ~(keystone)]#
Ext_Net_ID=`neutron net-list | grep ext_net | awk '{ print $2 }'` # 仮想ルーターにゲートウェイを設定 [root@dlp ~(keystone)]# neutron router-gateway-set $Router_ID $Ext_Net_ID Set gateway for router 0d8e7dfe-ee7a-4761-a7c3-dfbc5bd6d417 |
| [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=`neutron net-list | grep int_net | awk '{ print $2 }'` openstack image list +--------------------------------------+---------+--------+ | ID | Name | Status | +--------------------------------------+---------+--------+ | 0f695de0-2bf6-4a51-93ea-0c87ac6a3d07 | CentOS7 | active | +--------------------------------------+---------+--------+[root@dlp ~(keystone)]# openstack server create --flavor m1.small --image CentOS7 --security-group default --nic net-id=$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)]# neutron floatingip-create ext_net Created a new floatingip: +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2016-10-25T08:07:21Z | | description | | | fixed_ip_address | | | floating_ip_address | 10.0.0.200 | | floating_network_id | 57841132-2c12-4a8b-b29f-2249eba54471 | | id | 79a5e6b0-5ffd-42d3-a13c-f27b35ca470c | | port_id | | | project_id | 150e205a8791426e8028a94699fb8848 | | revision_number | 1 | | router_id | | | status | DOWN | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T08:07:21Z | +---------------------+--------------------------------------+
[root@dlp ~(keystone)]#
Device_ID=`openstack server list | grep CentOS_7 | awk '{ print $2 }'` [root@dlp ~(keystone)]# Port_ID=`neutron port-list -- --device_id $Device_ID | grep 192.168.100.11 | awk '{ print $2 }'` [root@dlp ~(keystone)]# Floating_ID=`neutron floatingip-list | grep 10.0.0.200 | awk '{ print $2 }'`
[root@dlp ~(keystone)]#
neutron floatingip-associate $Floating_ID $Port_ID Associated floating IP 79a5e6b0-5ffd-42d3-a13c-f27b35ca470c # 設定確認 [root@dlp ~(keystone)]# neutron floatingip-show $Floating_ID +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2016-10-25T08:07:21Z | | description | | | fixed_ip_address | 192.168.100.11 | | floating_ip_address | 10.0.0.200 | | floating_network_id | 57841132-2c12-4a8b-b29f-2249eba54471 | | id | 79a5e6b0-5ffd-42d3-a13c-f27b35ca470c | | port_id | e2897c95-f3c0-402b-9a2c-1f53d2cfadd0 | | project_id | 150e205a8791426e8028a94699fb8848 | | revision_number | 2 | | router_id | 0d8e7dfe-ee7a-4761-a7c3-dfbc5bd6d417 | | status | ACTIVE | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T08:09:29Z | +---------------------+--------------------------------------+ |
| [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)]# neutron security-group-rule-create --direction ingress --protocol icmp default Created a new security_group_rule: +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2016-10-25T05:43:31Z | | description | | | direction | ingress | | ethertype | IPv4 | | id | bcb97399-f401-4c20-b7db-c3c25fc816b4 | | port_range_max | | | port_range_min | | | project_id | 150e205a8791426e8028a94699fb8848 | | protocol | icmp | | remote_group_id | | | remote_ip_prefix | | | revision_number | 1 | | security_group_id | 572bb509-9c34-44cf-ab38-408e5b9cddb8 | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T05:43:31Z | +-------------------+--------------------------------------+ # 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 | 2016-10-25T05:43:48Z | | description | | | direction | ingress | | ethertype | IPv4 | | id | 5aae60db-71e2-4b7e-9eda-bd556dbed8aa | | port_range_max | 22 | | port_range_min | 22 | | project_id | 150e205a8791426e8028a94699fb8848 | | protocol | tcp | | remote_group_id | | | remote_ip_prefix | | | revision_number | 1 | | security_group_id | 572bb509-9c34-44cf-ab38-408e5b9cddb8 | | tenant_id | 150e205a8791426e8028a94699fb8848 | | updated_at | 2016-10-25T05:43:48Z | +-------------------+--------------------------------------+[root@dlp ~(keystone)]# neutron security-group-rule-list +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ | id | security_group | direction | ethertype | port/protocol | remote | +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ | 1867284b-45e6-4c64-95f7-408c7c00a82f | default | egress | IPv4 | any | any | | 5aae60db-71e2-4b7e-9eda-bd556dbed8aa | default | ingress | IPv4 | 22/tcp | any | | b44e29e3-a37b-41fa-9169-1bc102e3891d | default | egress | IPv6 | any | any | | bcb97399-f401-4c20-b7db-c3c25fc816b4 | default | ingress | IPv4 | icmp | any | | d534b39e-34ab-4f34-ae30-7205a7c6c511 | default | ingress | IPv4 | any | default (group) | | d672c429-55a1-4e7a-9ae8-99ee0cab0df8 | default | ingress | IPv6 | any | default (group) | +--------------------------------------+----------------+-----------+-----------+---------------+-----------------+ |
| [10] | 仮想マシンインスタンスに割りあてたフローティングIPあてに 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)]# ssh 10.0.0.200 root@10.0.0.201's password: Last login: Fri Apr 29 02:31:00 2016 [root@host-192-168-100-11 ~]# # ログインできた
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