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OpenStack Ocata : Neutron Networking(VXLAN)
2017/03/15 |
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Configure virtual networking by OpenStack Network Service (Neutron).
For example, configure VXLAN type of networking on here.
Before it, Configure basic settings on Control Node, Network Node, Compute Node.
Furthermore, this example is based on the environment that Network Node has 2 network interfaces.
------------+--------------------------------+--------------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | |eth1 | Libvirt |
| Memcached httpd | | L2,L3,Metadata Agent +---- | Nova Compute |
| Keystone Glance | | | | L2 Agent |
| Nova API | | | | |
| Neutron Server | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Change settings on Control Node. |
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root@dlp ~(keystone)#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # line 115: add a value to tenant_network_types tenant_network_types = vxlan
# line 166: add [ml2_type_flat]
flat_networks = physnet1
# line 220: add [ml2_type_vxlan]
vni_ranges = 1:1000
systemctl restart neutron-server |
| [2] | Change settings on Network Node. |
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root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # line 115: add a value to tenant_network_types tenant_network_types = vxlan
# line 166: add [ml2_type_flat]
flat_networks = physnet1
# line 220: add [ml2_type_vxlan]
vni_ranges = 1:1000
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # line 114: add [agent]
prevent_arp_spoofing = True
# line 145: add [linux_bridge]
physical_interface_mappings = physnet1:eth1
# line 181: add [vxlan]
enable_vxlan = True
l2_population = True
root@network:~#
vi /etc/neutron/dhcp_agent.ini # line 83: add
dnsmasq_config_file = /etc/neutron/dnsmasq-neutron.conf
root@network:~#
vi /etc/neutron/dnsmasq-neutron.conf # create new
dhcp-option-force=26,1450
for service in l3-agent dhcp-agent metadata-agent linuxbridge-agent; do systemctl restart neutron-$service done |
| [3] | Change settings on Compute Node. |
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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 # line 115: add a value to tenant_network_types tenant_network_types = vxlan
# line 166: add [ml2_type_flat]
flat_networks = physnet1
# line 220: add [ml2_type_vxlan]
vni_ranges = 1:1000
root@node01:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini # line 114: add [agent]
prevent_arp_spoofing = True
# line 181: add [vxlan]
enable_vxlan = True
l2_population = True systemctl restart neutron-linuxbridge-agent |
| [4] | Create a Virtual router. It's OK to work on any node. (This example is on Control Node) |
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root@dlp ~(keystone)# openstack router create router01 Created a new router: +-------------------------+--------------------------------------+ | Field | Value | +-------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-16T05:47:22Z | | description | | | distributed | False | | external_gateway_info | None | | flavor_id | None | | ha | False | | id | 3dd71e78-6f72-4ea9-95cd-94f2fdfd58b7 | | name | router01 | | project_id | ef6b5d01da394383a1afba725735a727 | | revision_number | None | | routes | | | status | ACTIVE | | updated_at | 2017-03-16T05:47:22Z | +-------------------------+--------------------------------------+ |
| [5] | Create internal network and associate with the router above. |
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# create internal network root@dlp ~(keystone)# openstack network create int_net --provider-network-type vxlan +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-16T05:47:59Z | | description | | | dns_domain | None | | id | 428b6cd1-2df4-446c-a1c2-0cab74a730ac | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | None | | mtu | 1450 | | name | int_net | | port_security_enabled | True | | project_id | ef6b5d01da394383a1afba725735a727 | | provider:network_type | vxlan | | provider:physical_network | None | | provider:segmentation_id | 80 | | qos_policy_id | None | | revision_number | 3 | | router:external | Internal | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | updated_at | 2017-03-16T05:47:59Z | +---------------------------+--------------------------------------+ # create subnet in the internal network 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 | 2017-03-16T05:48:40Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | True | | gateway_ip | 192.168.100.1 | | host_routes | | | id | e4ad1184-3d88-4ac4-b89d-cf509cb0c52e | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet1 | | network_id | 428b6cd1-2df4-446c-a1c2-0cab74a730ac | | project_id | ef6b5d01da394383a1afba725735a727 | | revision_number | 2 | | segment_id | None | | service_types | | | subnetpool_id | None | | updated_at | 2017-03-16T05:48:40Z | +-------------------+--------------------------------------+ # set internal network to the router above root@dlp ~(keystone)# openstack router add subnet router01 subnet1 |
| [6] | Create external network and associate with the router above. |
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# create external network root@dlp ~(keystone)# openstack network create \ --provider-physical-network physnet1 \ --provider-network-type flat --external ext_net +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | UP | | availability_zone_hints | | | availability_zones | | | created_at | 2017-03-16T05:49:43Z | | description | | | dns_domain | None | | id | febd4268-45ce-4690-8252-d4ebdab9bccc | | ipv4_address_scope | None | | ipv6_address_scope | None | | is_default | False | | mtu | 1500 | | name | ext_net | | port_security_enabled | True | | project_id | ef6b5d01da394383a1afba725735a727 | | provider:network_type | flat | | provider:physical_network | physnet1 | | provider:segmentation_id | None | | qos_policy_id | None | | revision_number | 4 | | router:external | External | | segments | None | | shared | False | | status | ACTIVE | | subnets | | | updated_at | 2017-03-16T05:49:44Z | +---------------------------+--------------------------------------+ # create subnet in external network 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 --no-dhcp +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | allocation_pools | 10.0.0.200-10.0.0.254 | | cidr | 10.0.0.0/24 | | created_at | 2017-03-16T05:50:21Z | | description | | | dns_nameservers | 10.0.0.10 | | enable_dhcp | False | | gateway_ip | 10.0.0.1 | | host_routes | | | id | 4059076f-63b8-4167-bb04-79258025fb81 | | ip_version | 4 | | ipv6_address_mode | None | | ipv6_ra_mode | None | | name | subnet2 | | network_id | febd4268-45ce-4690-8252-d4ebdab9bccc | | project_id | ef6b5d01da394383a1afba725735a727 | | revision_number | 2 | | segment_id | None | | service_types | | | subnetpool_id | None | | updated_at | 2017-03-16T05:50:21Z | +-------------------+--------------------------------------+ # set gateway to the router above root@dlp ~(keystone)# openstack router set router01 --external-gateway ext_net |
| [7] | Create and start Virtual machine Instance. |
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root@dlp ~(keystone)#
root@dlp ~(keystone)# Int_Net_ID=`openstack network list | grep int_net | awk '{ print $2 }'` openstack image list +--------------------------------------+------------+--------+ | ID | Name | Status | +--------------------------------------+------------+--------+ | 94b334bf-178f-46b2-ac6f-4e49de6442a1 | Ubuntu1604 | active | +--------------------------------------+------------+--------+root@dlp ~(keystone)# openstack server create --flavor m1.small --image Ubuntu1604 --security-group default --nic net-id=$Int_Net_ID Ubuntu_1604 root@dlp ~(keystone)# openstack server list +--------------------+-------------+--------+---------------------+------------+ | ID | Name | Status | Networks | Image Name | +--------------------+-------------+--------+---------------------+------------+ | 17ae3ad9-0a0d- | Ubuntu_1604 | ACTIVE | int_net=192.168.100 | Ubuntu1604 | | 485d- | | | .8 | | | b1c1-461821b0b1d2 | | | | | +--------------------+-------------+--------+---------------------+------------+ |
| [8] | Assign floating IP address to the Instance above. |
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root@dlp ~(keystone)# openstack floating ip create ext_net Created a new floatingip: +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-03-16T05:53:04Z | | description | | | fixed_ip_address | None | | floating_ip_address | 10.0.0.205 | | floating_network_id | febd4268-45ce-4690-8252-d4ebdab9bccc | | id | 14425492-59c8-41eb-b2ce-5a396789b4ea | | name | None | | port_id | None | | project_id | ef6b5d01da394383a1afba725735a727 | | revision_number | 1 | | router_id | None | | status | DOWN | | updated_at | 2017-03-16T05:53:04Z | +---------------------+--------------------------------------+
root@dlp ~(keystone)#
openstack server add floating ip Ubuntu_1604 10.0.0.205 # show settings root@dlp ~(keystone)# openstack floating ip show 10.0.0.205 +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | created_at | 2017-03-16T05:53:04Z | | description | | | fixed_ip_address | 192.168.100.8 | | floating_ip_address | 10.0.0.205 | | floating_network_id | febd4268-45ce-4690-8252-d4ebdab9bccc | | id | 14425492-59c8-41eb-b2ce-5a396789b4ea | | name | None | | port_id | 223f7838-ae6b-404a-b524-63715a8055d6 | | project_id | ef6b5d01da394383a1afba725735a727 | | revision_number | 2 | | router_id | 3dd71e78-6f72-4ea9-95cd-94f2fdfd58b7 | | status | ACTIVE | | updated_at | 2017-03-16T05:53:45Z | +---------------------+--------------------------------------+ |
| [9] | Configure security settings like follows to access with SSH and ICMP. |
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# permit ICMP root@dlp ~(keystone)# openstack security group rule create --protocol icmp --ingress default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-03-10T06:45:14Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | faf40532-ceea-41ad-a5fb-11b857c022ce | | name | None | | port_range_max | None | | port_range_min | None | | project_id | 763d3fd7411e4b42982d4d7022f1e335 | | protocol | icmp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | cb6894d3-846b-4135-8cc6-25842b67c6a6 | | updated_at | 2017-03-10T06:45:14Z | +-------------------+--------------------------------------+ # permit SSH root@dlp ~(keystone)# openstack security group rule create --protocol tcp --dst-port 22:22 default +-------------------+--------------------------------------+ | Field | Value | +-------------------+--------------------------------------+ | created_at | 2017-03-10T06:45:31Z | | description | | | direction | ingress | | ether_type | IPv4 | | id | 15421d61-0343-40f9-8086-2e53e526248d | | name | None | | port_range_max | 22 | | port_range_min | 22 | | project_id | 763d3fd7411e4b42982d4d7022f1e335 | | protocol | tcp | | remote_group_id | None | | remote_ip_prefix | 0.0.0.0/0 | | revision_number | 1 | | security_group_id | cb6894d3-846b-4135-8cc6-25842b67c6a6 | | updated_at | 2017-03-10T06:45:31Z | +-------------------+--------------------------------------+root@dlp ~(keystone)# openstack security group rule list +------------+-------------+-----------+------------+-----------------------+----------------+ | ID | IP Protocol | IP Range | Port Range | Remote Security Group | Security Group | +------------+-------------+-----------+------------+-----------------------+----------------+ | 15421d61-0 | tcp | 0.0.0.0/0 | 22:22 | None | cb6894d3-846b- | | 343-40f9-8 | | | | | 4135-8cc6-2584 | | 086-2e53e5 | | | | | 2b67c6a6 | | 26248d | | | | | | | 9928f5fc-8 | None | None | | None | cb6894d3-846b- | | c94-4458-8 | | | | | 4135-8cc6-2584 | | 3a6-9a8678 | | | | | 2b67c6a6 | | 8fb5ee | | | | | | | bce04897-a | None | None | | cb6894d3-846b-4135-8c | cb6894d3-846b- | | 9b2-4b80-8 | | | | c6-25842b67c6a6 | 4135-8cc6-2584 | | 709-6fbcbf | | | | | 2b67c6a6 | | 459ef7 | | | | | | | faf40532 | icmp | 0.0.0.0/0 | | None | cb6894d3-846b- | | -ceea- | | | | | 4135-8cc6-2584 | | 41ad-a5fb- | | | | | 2b67c6a6 | | 11b857c022 | | | | | | | ce | | | | | | | fba7a2cb- | None | None | | cb6894d3-846b-4135-8c | cb6894d3-846b- | | 03fa-4c11 | | | | c6-25842b67c6a6 | 4135-8cc6-2584 | | -aadd-ebab | | | | | 2b67c6a6 | | 85838be9 | | | | | | | fe1ae047 | None | None | | None | cb6894d3-846b- | | -9bdd-43b1 | | | | | 4135-8cc6-2584 | | -b6bd-62fa | | | | | 2b67c6a6 | | 17442d87 | | | | | | +------------+-------------+-----------+------------+-----------------------+----------------+ |
| [10] | It's possible to login to the Instance to connect to the IP address with SSH like follows. |
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root@dlp ~(keystone)# ssh ubuntu@10.0.0.205
The authenticity of host '10.0.0.205 (10.0.0.205)' can't be established.
ECDSA key fingerprint is SHA256:hb0tkx8NUhkoyhBHfEEY2Hs0L+wXHRwfE953hgK0CpQ.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.0.0.205' (ECDSA) to the list of known hosts.
ubuntu@10.0.0.205's password:
Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.4.0-66-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
Last login: Wed Mar 15 09:46:46 2017
ubuntu@ubuntu:~$ # just logined
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