6.openstack之mitaka搭建网络节点

部署网络服务

一：控制节点配置

1.建库建用户

mysql -u root -p
CREATE DATABASE neutron;
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'liuyao';
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'liuyao';
flush privileges;

2.keystone相关

source admin-openrc
openstack user create --domain default --password-prompt neutron

openstack role add --project service --user neutron admin
 
openstack service create --name neutron \
  --description "OpenStack Networking" network

openstack endpoint create --region RegionOne \
  network public http://controller:9696
  
openstack endpoint create --region RegionOne \
  network internal http://controller:9696
  
openstack endpoint create --region RegionOne \
  network admin http://controller:9696

3.安装软件包

yum install openstack-neutron openstack-neutron-ml2 python-neutronclient which  -y

4.配置服务器组件 =

vim /etc/neutron/neutron.conf
[DEFAULT]
core_plugin = ml2
service_plugins = router
#下面配置:启用重叠IP地址功能
allow_overlapping_ips = True
rpc_backend = rabbit
auth_strategy = keystone
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True

[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = liuyao

[database]
connection = mysql+pymysql://neutron:liuyao@controller/neutron

[keystone_authtoken]
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = liuyao

[nova]
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = liuyao

[oslo_concurrency]
lock_path = /var/lib/neutron/tmp

#修改ml2配置文件
vim /etc/neutron/plugins/ml2/ml2_conf.ini 
[ml2]
type_drivers = flat,vlan,vxlan,gre
tenant_network_types = vxlan
mechanism_drivers = openvswitch,l2population
extension_drivers = port_security

[ml2_type_flat]
flat_networks = provider

[ml2_type_vxlan]
vni_ranges = 1:1000

[securitygroup]
enable_ipset = True

#修改nova配置文件
vim /etc/nova/nova.conf
[neutron]
url = http://controller:9696
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = liuyao
service_metadata_proxy = True

5.创建连接

ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

6.同步数据库：（此处会报一些关于future的问题，自行忽略）

su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf \
 --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron

7.重启nova服务

systemctl restart openstack-nova-api.service

8.启动neutron服务

systemctl enable neutron-server.service
systemctl start neutron-server.service

二：网络节点配置

1.创建eth1

TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=1.1.1.119
NETMASK=255.255.255.0

注：二层通讯 不需要网关

2.修改内核参数

vim /etc/sysctl.conf

net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
sysctl -p

3.安装软件包

yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch -y

4．配置组件

vim /etc/neutron/neutron.conf
[DEFAULT]
core_plugin = ml2
service_plugins = router
allow_overlapping_ips = True
rpc_backend = rabbit
auth_strategy = keystone


[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = liuyao

[oslo_concurrency]
lock_path = /var/lib/neutron/tmp

5.配置openvswitch_agent

vim /etc/neutron/plugins/ml2/openvswitch_agent.ini
[ovs]
#下面ip为网络节点数据网络ip
local_ip=1.1.1.119
bridge_mappings=external:br-ex

[agent]
tunnel_types=gre,vxlan
l2_population=True
prevent_arp_spoofing=True

6.配置L3代理

vim /etc/neutron/l3_agent.ini
[DEFAULT]
interface_driver=neutron.agent.linux.interface.OVSInterfaceDriver
external_network_bridge=br-ex

7.配置DHCP代理

vim /etc/neutron/dhcp_agent.ini

[DEFAULT]
interface_driver=neutron.agent.linux.interface.OVSInterfaceDriver
dhcp_driver=neutron.agent.linux.dhcp.Dnsmasq
enable_isolated_metadata=True

8.配置元数据代理

vim /etc/neutron/metadata_agent.iniW
[DEFAULT]
nova_metadata_ip=controller
metadata_proxy_shared_secret=liuyao

9.启动服务

网路节点：
systemctl start neutron-openvswitch-agent.service neutron-l3-agent.service \
neutron-dhcp-agent.service neutron-metadata-agent.service

systemctl enable neutron-openvswitch-agent.service neutron-l3-agent.service \
neutron-dhcp-agent.service neutron-metadata-agent.service

10.建网桥

ovs-vsctl add-br br-ex


注意，如果网卡数量有限，想用网路节点的管理网络网卡作为br-ex绑定的物理网卡
#那么需要将网络节点管理网络网卡ip去掉，建立br-ex的配置文件，ip使用原管理网ip

cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE=eth0
TYPE=Ethernet
ONBOOT="yes"
BOOTPROTO="none"

cat /etc/sysconfig/network-scripts/ifcfg-br-ex 
DEVICE=br-ex
TYPE=Ethernet
ONBOOT="yes"
BOOTPROTO="none"
HWADDR=bc:ee:7b:78:7b:a7
IPADDR=192.168.10.104
GATEWAY=192.168.10.254
NETMASK=255.255.255.0
DNS1=202.106.0.20
DNS1=8.8.8.8
NM_CONTROLLED=no #注意加上这一句否则网卡可能启动不成功

systemctl restart network
ovs-vsctl add-port br-ex eth0

三：计算节点配置

1.修改内核参数

vim /etc/sysctl.conf
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0
net.bridge.bridge-nf-call-iptables=1
net.bridge.bridge-nf-call-ip6tables=1	
sysctl -p

2.创建eth1

TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=1.1.1.117
NETMASK=255.255.255.0

3.安装相关包

yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch -y

4.编辑neutron配置

vim /etc/neutron/neutron.conf

[DEFAULT]
rpc_backend = rabbit
auth_strategy = keystone


[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = liuyao

[oslo_concurrency]
lock_path = /var/lib/neutron/tmp

5．编辑openvswitch_agent

/etc/neutron/plugins/ml2/openvswitch_agent.ini

[ovs]
#下面ip为计算节点数据网络ip
local_ip = 1.1.1.117
#bridge_mappings = vlan:br-vlan
[agent]
tunnel_types = gre,vxlan
l2_population = True
prevent_arp_spoofing = True

[securitygroup]
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver
enable_security_group = True

7.编辑nova配置

vim /etc/nova/nova.conf

[neutron]
url = http://controller:9696
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = liuyao

8．启动服务

systemctl enable neutron-openvswitch-agent.service
systemctl start neutron-openvswitch-agent.service
systemctl restart openstack-nova-compute.service