用ml2 plugin配置OpenStack Neutron flat 网络
OS:RHEL6.4
OpenStack version:Havana
Controller node : 一台KVM
Compute node :一台ESXI
创建flat 网络
参考http://blog.csdn.net/starean/article/details/16801949
比较全的网络配置
1. Edit conf files in Controller node:
/etc/neutron/neutron.conf
[DEFAULT]
core_plugin = neutron.plugins.ml2.plugin.Ml2Plugin
# 如果需要neutron l3 agent work(router/NAT) 此处需要制定L3 plugin
service_plugins = neutron.services.l3_router.l3_router_plugin.L3RouterPlugin
[database]
connection = mysql://neutron:[email protected]/ovs_neutron
/etc/neutron/plugins/ml2/ml2_conf.ini
[ml2]
type_drivers = flat
tenant_network_types = flat
mechanism_drivers = openvswitch
[ml2_type_flat]
flat_networks = physnet1
/etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini
[ovs]
bridge_mappings = physnet1:br-eth0
2. 用openvswitch创建虚拟桥, 并绑定物理网卡(此处选择eth1, eth0作为management 网络)
前期部署的时候最好有两个网卡，如果只有一个网卡，在绑定物理网卡的过程中网络会被断开
ovs-vsctl add-br br-eth0
ovs-vsctl add-port br-eth0 eth1
# 目前无法用service neutron-server restart来load ml2配置，暂时用下面命令替代重启neutron-server
/usr/bin/python /usr/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --log-file /var/log/neutron/server.log &
service neutron-openvswitch-agent restart
service neutron-dhcp-agent restart
[root@xianghui-10-9-1-141 SDK]# ovs-vsctl show
c68671ea-d3d2-4f04-b806-7be10e65936e
Bridge "br-eth0"
Port "phy-br-eth0"
Interface "phy-br-eth0"
Port "eth1"
Interface "eth1"
Port "br-eth0"
Interface "br-eth0"
type: internal
Bridge br-int
Port "tap922fa636-15"
tag: 4095
Interface "tap922fa636-15"
type: internal
Port br-int
Interface br-int
type: internal
Port "tapc6ae5432-66"
tag: 4095
Interface "tapc6ae5432-66"
type: internal
Port "tap909c5f0b-61"
tag: 1
Interface "tap909c5f0b-61"
type: internal
Port "int-br-eth0"
Interface "int-br-eth0"
ovs_version: "1.10.0"
参考http://blog.csdn.net/starean/article/details/15335519 在ESXI上创建br-int port-group
3. 创建flat 网络(lat-50) 网段50.0.0.0/24
[root@xianghui-10-9-1-141 ˜]# neutron net-create flat-50 --provider:network_type flat --provider:physical_network physnet1
Created a new network:
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | fffe6c04-1e09-4cb3-886b-6404c0729c1a |
| name | flat-50 |
| provider:network_type | flat |
| provider:physical_network | physnet1 |
| provider:segmentation_id | |
| shared | False |
| status | ACTIVE |
| subnets | |
| tenant_id | 57f4a09b4bfb4c97bf9b216e6157ef12 |
+---------------------------+--------------------------------------+
[root@xianghui-10-9-1-141 ˜]# neutron subnet-create flat-50 50.0.0.0/24
Created a new subnet:
+------------------+--------------------------------------------+
| Field | Value |
+------------------+--------------------------------------------+
| allocation_pools | {"start": "50.0.0.2", "end": "50.0.0.254"} |
| cidr | 50.0.0.0/24 |
| dns_nameservers | |
| enable_dhcp | True |
| gateway_ip | 50.0.0.1 |
| host_routes | |
| id | 19a19f9c-81b6-453a-9efc-541e1985b9d7 |
| ip_version | 4 |
| name | |
| network_id | fffe6c04-1e09-4cb3-886b-6404c0729c1a |
| tenant_id | 57f4a09b4bfb4c97bf9b216e6157ef12 |
+------------------+--------------------------------------------+
[root@xianghui-10-9-1-141 ˜]# neutron net-list
+--------------------------------------+---------+--------------------------------------------------+
| id | name | subnets |
+--------------------------------------+---------+--------------------------------------------------+
| fffe6c04-1e09-4cb3-886b-6404c0729c1a | flat-50 | 19a19f9c-81b6-453a-9efc-541e1985b9d7 50.0.0.0/24 |
+--------------------------------------+---------+--------------------------------------------------+
确保dnsmasq进程只有下面这一个
[root@xianghui-10-9-1-141 ˜]# ps -ef|grep dnsmasq
root 22034 15050 0 03:42 pts/3 00:00:00 grep dnsmasq
nobody 24702 1 0 01:39 ? 00:00:00 /usr/sbin/dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --interface=tap909c5f0b-61 --except-interface=lo --pid-file=/var/lib/neutron/dhcp/fffe6c04-1e09-4cb3-886b-6404c0729c1a/pid --dhcp-hostsfile=/var/lib/neutron/dhcp/fffe6c04-1e09-4cb3-886b-6404c0729c1a/host --dhcp-optsfile=/var/lib/neutron/dhcp/fffe6c04-1e09-4cb3-886b-6404c0729c1a/opts --leasefile-ro --dhcp-range=set:tag0,50.0.0.0,static,86400s --dhcp-lease-max=256 --conf-file= --domain=openstacklocal
检查dhcp interface rx/tx正常
[root@xianghui-10-9-1-141 ˜]# ifconfig tap909c5f0b-61
tap909c5f0b-61 Link encap:Ethernet HWaddr FA:16:3E:24:92:CE
inet addr:50.0.0.2 Bcast:50.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::dc69:1fff:fe61:c9e4/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:36074 errors:0 dropped:0 overruns:0 frame:0
TX packets:465 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2823032 (2.6 MiB) TX bytes:20362 (19.8 KiB)
4. 创建虚拟机（compute node是ESXI）
[root@xianghui-10-9-1-141 SDK]# glance index
ID Name Disk Format Container Format Size
------------------------------------ ------------------------------ -------------------- -------------------- --------------
94afb726-5984-4eb7-9d7d-d055437577d0 trend-thin vmdk bare 268435456
[root@xianghui-10-9-1-141 SDK]# neutron net-list
+--------------------------------------+---------+--------------------------------------------------+
| id | name | subnets |
+--------------------------------------+---------+--------------------------------------------------+
| fffe6c04-1e09-4cb3-886b-6404c0729c1a | flat-50 | 19a19f9c-81b6-453a-9efc-541e1985b9d7 50.0.0.0/24 |
+--------------------------------------+---------+--------------------------------------------------+
[root@xianghui-10-9-1-141 SDK]# nova boot --image 94afb726-5984-4eb7-9d7d-d055437577d0 --flavor 2 --nic net-id=fffe6c04-1e09-4cb3-886b-6 404c0729c1a test_esxi_1
+--------------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------------+--------------------------------------+
| OS-EXT-STS:task_state | scheduling |
| image | trend-thin |
| OS-EXT-STS:vm_state | building |
| OS-EXT-SRV-ATTR:instance_name | instance-00000001 |
| OS-SRV-USG:launched_at | None |
| flavor | m1.small |
| id | cbdcd834-de07-4ea2-b34c-1c1c1cccd27f |
| security_groups | [{u'name': u'default'}] |
| user_id | e37a1e89b1bf4f3d9a14aa7306f5b4de |
| OS-DCF:diskConfig | MANUAL |
| accessIPv4 | |
| accessIPv6 | |
| progress | 0 |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-AZ:availability_zone | nova |
| config_drive | |
| status | BUILD |
| updated | 2013-11-08T09:06:36Z |
| hostId | |
| OS-EXT-SRV-ATTR:host | None |
| OS-SRV-USG:terminated_at | None |
| key_name | None |
| OS-EXT-SRV-ATTR:hypervisor_hostname | None |
| name | test_esxi_1 |
| adminPass | oVXwsp2AkdZ7 |
| tenant_id | 57f4a09b4bfb4c97bf9b216e6157ef12 |
| created | 2013-11-08T09:06:36Z |
| os-extended-volumes:volumes_attached | [] |
| metadata | {} |
+--------------------------------------+--------------------------------------+
[root@xianghui-10-9-1-141 SDK]# nova list
+--------------------------------------+-------------+--------+------------+-------------+------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------------+--------+------------+-------------+------------------+
| cbdcd834-de07-4ea2-b34c-1c1c1cccd27f | test_esxi_1 | BUILD | spawning | NOSTATE | flat-50=50.0.0.3 |
+--------------------------------------+-------------+--------+------------+-------------+------------------+
[root@xianghui-10-9-1-141 SDK]# nova list
+--------------------------------------+-------------+--------+------------+-------------+------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------------+--------+------------+-------------+------------------+
| cbdcd834-de07-4ea2-b34c-1c1c1cccd27f | test_esxi_1 | ACTIVE | None | Running | flat-50=50.0.0.3 |
+--------------------------------------+-------------+--------+------------+-------------+------------------+
[root@xianghui-10-9-1-141 ˜]# ping 50.0.0.3
PING 50.0.0.3 (50.0.0.3) 56(84) bytes of data.
64 bytes from 50.0.0.3: icmp_seq=1 ttl=64 time=1.69 ms
ˆC
--- 50.0.0.3 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 957ms
rtt min/avg/max/mdev = 1.691/1.691/1.691/0.000 ms