OpenStack Newton : Neutron ネットワーク構成(VXLAN)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
| |
+------------+-----------------+------------------------+
| | | |
| | | 10.0.0.200-10.0.0.254
eth0|10.0.0.30 | 10.0.0.50| eth0 +--------+-------+
+--------+---------+ | +-----------+----------+ | Virtual Router |
| [ Control Node ] | | | [ Network Node ] | +--------+-------+
| Keystone | | | DHCP Agent | 192.168.100.1
| Glance | | | 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 tenant_network_types = vxlan
# 154行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 208行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
systemctl restart neutron-server |
| [2] | Network ノードで以下のように設定変更します。 |
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root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 103行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 154行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 208行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 133行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
# 169行目：追記 [vxlan]
enable_vxlan = True
l2_population = True # 102行目：追記 [agent]
prevent_arp_spoofing = True
root@network:~#
vi /etc/neutron/dhcp_agent.ini # 83行目：追記
dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf
root@network:~#
vi /etc/neutron/dnsmasq-neutron.conf # 新規作成
dhcp-option-force=26,1450
for service in l3-agent dhcp-agent metadata-agent linuxbridge-agent; do systemctl restart neutron-$service done |
| [3] | Compute ノードで以下のように設定変更します。 |
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root@node01:~# echo 'net.bridge.bridge-nf-call-iptables=1' >> /etc/sysctl.conf root@node01:~# echo 'net.bridge.bridge-nf-call-ip6tables=1' >> /etc/sysctl.conf root@node01:~# sysctl -p
root@node01:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # 103行目： tenant_network_types に値を追記 tenant_network_types = vxlan
# 154行目：追記 [ml2_type_flat]
flat_networks = physnet1
# 208行目：追記 [ml2_type_vxlan]
vni_ranges = 1:1000
root@node01:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # 133行目：追記 [linux_bridge]
physical_interface_mappings = physnet1:eth1
# 169行目：追記 [vxlan]
enable_vxlan = True
l2_population = True # 102行目：追記 [agent]
prevent_arp_spoofing = True
systemctl restart neutron-linuxbridge-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 | 2016-11-18T08:18:51Z | | description | | | distributed | False | | external_gateway_info | | | flavor_id | | | ha | False | | id | 74b567a8-62ca-4c5e-aad1-123489ca59c3 | | name | router01 | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | revision_number | 2 | | routes | | | status | ACTIVE | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T08:18:51Z | +-------------------------+--------------------------------------+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 --provider:network_type vxlan Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-11-18T08:19:14Z | | description | | | id | 75e0a881-d371-4dcf-8d65-3a412d28e9a7 | | ipv4_address_scope | | | ipv6_address_scope | | | mtu | 1450 | | name | int_net | | port_security_enabled | True | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | provider:network_type | vxlan | | provider:physical_network | | | provider:segmentation_id | 10 | | revision_number | 3 | | router:external | False | | shared | False | | status | ACTIVE | | subnets | | | tags | | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T08:19:14Z | +---------------------------+--------------------------------------+ # 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 | 2016-11-18T08:19:44Z |
| description | |
| dns_nameservers | 10.0.0.10 |
| enable_dhcp | True |
| gateway_ip | 192.168.100.1 |
| host_routes | |
| id | 28daf4f0-3076-4976-aa82-5d489f5370a4 |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | 75e0a881-d371-4dcf-8d65-3a412d28e9a7 |
| project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 |
| revision_number | 2 |
| service_types | |
| subnetpool_id | |
| tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 |
| updated_at | 2016-11-18T08:19:45Z |
+-------------------+------------------------------------------------------+
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 40952b9d-74ba-47f1-b8ed-9333678c72e7 to router 74b567a8-62ca-4c5e-aad1-123489ca59c3. |
| [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 True --provider:physical_network physnet1 --provider:network_type flat Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-11-18T08:20:37Z | | description | | | id | 05e48f19-b637-4a0f-829f-d25739cfcefe | | ipv4_address_scope | | | ipv6_address_scope | | | is_default | False | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | | | revision_number | 3 | | router:external | True | | shared | False | | status | ACTIVE | | subnets | | | tags | | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T08:20:37Z | +---------------------------+--------------------------------------+ # 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 | 2016-11-18T08:21:06Z |
| description | |
| dns_nameservers | 10.0.0.10 |
| enable_dhcp | False |
| gateway_ip | 10.0.0.1 |
| host_routes | |
| id | 1587abf4-a271-42a2-97eb-538f864e104b |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name | |
| network_id | 05e48f19-b637-4a0f-829f-d25739cfcefe |
| project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 |
| revision_number | 2 |
| service_types | |
| subnetpool_id | |
| tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 |
| updated_at | 2016-11-18T08:21:06Z |
+-------------------+----------------------------------------------+
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 74b567a8-62ca-4c5e-aad1-123489ca59c3 |
| [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 $2 }'` openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 7d0cf100-6017-448c-9a6b-5bcf20d93f73 | Ubuntu1604 | active | +--------------------------------------+------------+--------+root@dlp ~(keystone)# openstack server create --flavor m1.small --image Ubuntu1604 --security-group default --nic net-id=$Int_Net_ID Ubuntu_1604 root@dlp ~(keystone)# openstack server list +--------------------+-------------+--------+---------------------+------------+ | ID | Name | Status | Networks | Image Name | +--------------------+-------------+--------+---------------------+------------+ | 94afe31b-659b-4f61 | Ubuntu_1604 | ACTIVE | int_net=192.168.100 | Ubuntu1604 | | -bfd4-380bf440b510 | | | .9 | | +--------------------+-------------+--------+---------------------+------------+ |
| [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 | 2016-11-18T08:24:58Z | | description | | | fixed_ip_address | | | floating_ip_address | 10.0.0.207 | | floating_network_id | 05e48f19-b637-4a0f-829f-d25739cfcefe | | id | 453fa175-d787-4020-8bc9-c6247d67c41a | | port_id | | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | revision_number | 1 | | router_id | | | status | DOWN | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T08:24:58Z | +---------------------+--------------------------------------+
root@dlp ~(keystone)#
Device_ID=`nova list | grep Ubuntu_1604 | awk '{ print $2 }'` root@dlp ~(keystone)# Port_ID=`neutron port-list -- --device_id $Device_ID | grep 192.168.100.9 | awk '{ print $2 }'` root@dlp ~(keystone)# Floating_ID=`neutron floatingip-list | grep 10.0.0.207 | awk '{ print $2 }'`
root@dlp ~(keystone)#
neutron floatingip-associate $Floating_ID $Port_ID Associated floating IP 453fa175-d787-4020-8bc9-c6247d67c41a # 設定確認 root@dlp ~(keystone)# neutron floatingip-show $Floating_ID +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2016-11-18T08:24:58Z | | description | | | fixed_ip_address | 192.168.100.9 | | floating_ip_address | 10.0.0.207 | | floating_network_id | 05e48f19-b637-4a0f-829f-d25739cfcefe | | id | 453fa175-d787-4020-8bc9-c6247d67c41a | | port_id | 817fd310-8f94-4389-9d46-26ad370bb632 | | project_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | revision_number | 2 | | router_id | 74b567a8-62ca-4c5e-aad1-123489ca59c3 | | status | ACTIVE | | tenant_id | 1b8227c2c89e4f1cbcbbb9f6060b0416 | | updated_at | 2016-11-18T08:25:53Z | +---------------------+--------------------------------------+ |
| [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 | 2016-11-18T07:18:26Z | | 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 | | | | | | +------------+----------------+-----------+-----------+---------------+---------------+ |
| [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 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:SjUVkYJif0xlnfbcL5C3fmkZNcHQW7NCmRkLNGl6uiM.
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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