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7. Neutron(Rocky) - 网络服务(Provide

7. Neutron(Rocky) - 网络服务(Provide

作者: 找呀找提莫 | 来源:发表于2020-07-19 21:32 被阅读0次

    7.1 Neutorn说明(略)

    不废话了

    7.2 部署Neutorn(Crontroller节点)

    在 controller节点部署;

    7.2.1 创建Neutron数据库

    CREATE DATABASE neutron;
    
    GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'neutron';
    GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'neutron';
    
    FLUSH PRIVILEGES;
    

    7.2.2 创建Neutron用户

    source admin-openrc
    

    创建 neutron用户

    openstack user create --domain default --password-prompt neutron
    User Password:neutron
    Repeat User Password:neutron
    +---------------------+----------------------------------+
    | Field               | Value                            |
    +---------------------+----------------------------------+
    | domain_id           | default                          |
    | enabled             | True                             |
    | id                  | b5fb09e2e84a43308a860fb732d72c84 |
    | name                | neutron                          |
    | options             | {}                               |
    | password_expires_at | None                             |
    +---------------------+----------------------------------+
    

    neutron用户分配 admin 角色,并加入到 service 项目

    openstack role add --project service --user neutron admin
    

    创建 neutron服务

    openstack service create --name neutron --description "OpenStack Networking" network
    +-------------+----------------------------------+
    | Field       | Value                            |
    +-------------+----------------------------------+
    | description | OpenStack Networking             |
    | enabled     | True                             |
    | id          | 0f45506dab5c4917a7678bd57d997483 |
    | name        | neutron                          |
    | type        | network                          |
    +-------------+----------------------------------+
    

    创建 neutronAPI 端点

    openstack endpoint create --region RegionOne network public http://controller:9696
    +--------------+----------------------------------+
    | Field        | Value                            |
    +--------------+----------------------------------+
    | enabled      | True                             |
    | id           | 5c3908dc3b1a40008b5f395e6542699d |
    | interface    | public                           |
    | region       | RegionOne                        |
    | region_id    | RegionOne                        |
    | service_id   | 0f45506dab5c4917a7678bd57d997483 |
    | service_name | neutron                          |
    | service_type | network                          |
    | url          | http://controller:9696           |
    +--------------+----------------------------------+
    
    openstack endpoint create --region RegionOne network internal http://controller:9696
    +--------------+----------------------------------+
    | Field        | Value                            |
    +--------------+----------------------------------+
    | enabled      | True                             |
    | id           | e432464cd5614537a98223b2b369746e |
    | interface    | internal                         |
    | region       | RegionOne                        |
    | region_id    | RegionOne                        |
    | service_id   | 0f45506dab5c4917a7678bd57d997483 |
    | service_name | neutron                          |
    | service_type | network                          |
    | url          | http://controller:9696           |
    +--------------+----------------------------------+
    
    openstack endpoint create --region RegionOne network admin http://controller:9696
    +--------------+----------------------------------+
    | Field        | Value                            |
    +--------------+----------------------------------+
    | enabled      | True                             |
    | id           | a3ed7b3e88ad41f8b75b2bcb43c31ae7 |
    | interface    | admin                            |
    | region       | RegionOne                        |
    | region_id    | RegionOne                        |
    | service_id   | 0f45506dab5c4917a7678bd57d997483 |
    | service_name | neutron                          |
    | service_type | network                          |
    | url          | http://controller:9696           |
    +--------------+----------------------------------+
    

    7.2.3 安装配置Neutron

    Neutron 有两种网络选项:

    • 公共网络:简单,但是只支持实例连接到公有网络(外部网络);没有私有网络(个人网络),路由器以及浮动IP地址;只有admin或者其他特权用户才可以管理公有网络;
    • 私有网络:在 公共网络 的基础上多了layer-3服务,支持实例连接到私有网络。demo或者其他没有特权的用户可以管理自己的私有网络,包含连接公网和私网的路由器;另外,浮动IP地址可以让实例使用私有网络连接到外部网络;

    这里使用 共有网络

    私有网络配置失败,起来后DashBoard各种报错;先弄公有的跑通再说;

    # 安装 Neutron
    yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-linuxbridge ebtables
    
    # 配置Neutron
    vim /etc/neutron/neutron.conf
    

    数据库配置

    [database]
    connection = mysql+pymysql://neutron:neutron@controller.alec.com/neutron
    

    配置 the Modular Layer 2 (ML2) plug-in router service 缺省

    [DEFAULT]
    core_plugin = ml2
    service_plugins = 
    

    配置RabbitMQ消息队列

    [DEFAULT]
    transport_url = rabbit://alec:alec@controller
    #                        用户  密码
    

    配置认证服务访问

    [DEFAULT]
    auth_strategy = keystone
    
    [keystone_authtoken]
    www_authenticate_uri = http://controller:5000
    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 = neutron
    

    配置网络服务通知计算节点的网络拓扑变化

    [DEFAULT]
    notify_nova_on_port_status_changes = true
    notify_nova_on_port_data_changes = true
    
    [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 = nova
    

    配置锁路径

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

    7.2.4 配置 Modular Layer 2 (ML2) 插件

    vim /etc/neutron/plugins/ml2/ml2_conf.ini
    

    启用flat,VLAN

    配置完ML2插件后,移除type_drivers项,否则会导致数据库不一致

    [ml2]
    type_drivers = flat,vlan
    

    禁用私有网络

    [ml2]
    tenant_network_types = 
    

    启用Linuxbridge

    [ml2]
    mechanism_drivers = linuxbridge
    

    启用端口安全扩展驱动

    [ml2]
    extension_drivers = port_security
    

    配置公共虚拟网络为flat网络

    [ml2_type_flat]
    flat_networks = provider
    

    启用 ipset 增加安全组规则的高效性

    [securitygroup]
    enable_ipset = true
    

    7.2.5 配置Linuxbridge代理

    vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini
    

    将公共虚拟网络和公共物理网络接口对应起来

    # 只有一块网卡,直接用就好;
    [linux_bridge]
    physical_interface_mappings = provider:ens33
    

    禁用VXLAN覆盖网络

    [vxlan]
    enable_vxlan = false
    

    启用安全组并配置 Linuxbridge iptables firewall driver

    [securitygroup]
    enable_security_group = true
    firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
    

    配置网络参数

    # 加载br_netfilter模块
    depmod 
    modprobe br_netfilter
    lsmod | grep br_netfilter
        br_netfilter           22256  0 
        bridge                151336  1 br_netfilter
    
    sysctl -w net.bridge.bridge-nf-call-iptables=1
    sysctl -w net.bridge.bridge-nf-call-ip6tables=1
    

    7.2.6 配置DHCP代理

    vim /etc/neutron/dhcp_agent.ini
    

    配置Linuxbridge驱动接口,DHCP驱动并启用隔离元数据,这样在公共网络上的实例就可以通过网络来访问元数据

    [DEFAULT]
    interface_driver = linuxbridge
    dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
    enable_isolated_metadata = true
    

    7.2.7 配置元数据代理

    vim /etc/neutron/metadata_agent.ini
    

    配置元数据主机以及共享密码

    # 共享密码使用默认的就行,和nova里的配置保持一致就好;
    [DEFAULT]
    nova_metadata_host = controller
    metadata_proxy_shared_secret = METADATA_SECRET
    

    7.2.9 配置Nova使用Neutron

    vim /etc/nova/nova.conf
    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 = neutron
    service_metadata_proxy = true
    metadata_proxy_shared_secret = METADATA_SECRET
    

    7.2.10 启动服务

    网络服务初始化脚本需要一个超链接 /etc/neutron/plugin.ini指向ML2插件配置文件/etc/neutron/plugins/ml2/ml2_conf.ini。如果超链接不存在,使用下面的命令创建它

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

    同步数据库

    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
    

    重启nova服务

    systemctl restart openstack-nova-api.service
    

    启动服务

    systemctl start neutron-server neutron-linuxbridge-agent neutron-dhcp-agent neutron-metadata-agent
    systemctl enable neutron-server neutron-linuxbridge-agent neutron-dhcp-agent neutron-metadata-agent
    

    7.3 部署Neutorn(Compute节点)

    7.3.1 安装配置neutron

    # 安装配置 Neutron
    yum install openstack-neutron-linuxbridge ebtables ipset
    
    # 配置 Neutron
    vim /etc/neutron/neutron.conf
    

    配置rabbitmq

    [DEFAULT]
    transport_url = rabbit://alec:alec@controller
    

    配置认证服务访问

    [DEFAULT]
    auth_strategy = keystone
    
    [keystone_authtoken]
    www_authenticate_uri = http://controller:5000
    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 = neutron
    

    配置锁路径

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

    7.3.2 配置Linuxbridge代理

    vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini
    

    将公共虚拟网络和公共物理网络接口对应起来

    # 只有一块网卡,直接用就好
    [linux_bridge]
    physical_interface_mappings = provider:ens33
    

    禁用VXLAN覆盖网络

    [vxlan]
    enable_vxlan = False
    

    启用安全组并配置 Linuxbridge iptables firewall driver

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

    配置网络参数

    # 加载br_netfilter模块
    depmod 
    modprobe br_netfilter
    lsmod | grep br_netfilter
        br_netfilter           22256  0 
        bridge                151336  1 br_netfilter
    
    sysctl -w net.bridge.bridge-nf-call-iptables=1
    sysctl -w net.bridge.bridge-nf-call-ip6tables=1
    

    3.7.3 配置Nova使用Neutron

    vim /etc/nova/nova.conf
    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 = neutron
    

    3.7.5 启动服务

    重启nova服务

    systemctl restart openstack-nova-compute.service
    

    启动Linux bridge agent

    systemctl enable neutron-linuxbridge-agent.service
    systemctl start neutron-linuxbridge-agent.service
    

    7.4 检查服务状态

    openstack network agent list
    +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
    | ID                                   | Agent Type         | Host       | Availability Zone | Alive | State | Binary                    |
    +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
    | 0947fd08-bc7d-4735-bd84-40a058e4fb3a | Linux bridge agent | controller | None              | :-)   | UP    | neutron-linuxbridge-agent |
    | b21a5f68-f293-4562-a3d3-920043da63c1 | Metadata agent     | controller | None              | :-)   | UP    | neutron-metadata-agent    |
    | e0cb00ff-df6d-44aa-8136-36b9afaf2c8f | DHCP agent         | controller | nova              | :-)   | UP    | neutron-dhcp-agent        |
    | f29dfff9-fed0-406f-b287-c74932f0fc8e | Linux bridge agent | compute    | None              | :-)   | UP    | neutron-linuxbridge-agent |
    +--------------------------------------+--------------------+------------+-------------------+-------+-------+---------------------------+
    

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