openstack 增加一台计算节点

增加一个计算节点

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1. 克隆一台 compute1

my_ip: 10.0.0.32

注意： 一定要打开虚拟化

2. 修改主机名

hostnamectl set-hostname compute1

3. hosts解析 所有节点

10.0.0.11  controller
10.0.0.31  compute
10.0.0.32  compute1

scp /etc/hosts 10.0.0.31:/etc/hosts
scp /etc/hosts 10.0.0.32:/etc/hosts

4 . 配置yum源

• 拉取软件包， 并将其 解压到 /opt 目录下

  curl -O http://10.0.0.98/openstack/openstack_rpm.tar.gz
  tar zxvf openstack_rpm.tar.gz -C /opt/
  

• 配置yum源

  scp 10.0.0.11:/etc/yum.repos.d/local.repo /etc/yum.repos.d/local.repo
  
  # 检测
  yum clean all; yum repolist 
  ……
  repo id                                             repo name                                            status
  local                                               local                                                3,894
  openstack                                           openstack                                              598
  

5.时间同步

# 安装软件包
yum -y install chrony.x86_64

# 修改配置
vim /etc/chrony.conf 
…… 
server 10.0.0.11 iburst

# 重启服务
systemctl restart chronyd
systemctl enable chronyd

6. 安装 openstack 软件包

yum install python-openstackclient openstack-selinux -y 

7.安装nova服务

# 安装软件包
yum install openstack-nova-compute -y

# 修改配置文件
cp /etc/nova/nova.conf{,.bak}
egrep -v '^$|#' /etc/nova/nova.conf.bak > /etc/nova/nova.conf   # 备份文件

vim /etc/nova/nova.conf
[DEFAULT]
rpc_backend = rabbit
auth_strategy = keystone
my_ip = 10.0.0.32
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
……
[glance]
api_servers = http://controller:9292
……
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = NOVA_PASS
……
[oslo_concurrency]
lock_path = /var/lib/nova/tmp
……
[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
……
[vnc]
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html
……

检验
md5sum /etc/nova/nova.conf
0120e3244ca775c740ea4f445a079a0b  /etc/nova/nova.conf

8.安装neutron服务

# 安装软件包
yum install openstack-neutron-linuxbridge ebtables ipset -y 

# 备份文件
cp /etc/neutron/neutron.conf{,.bak}
egrep -v '^$|#' /etc/neutron/neutron.conf.bak > /etc/neutron/neutron.conf

# 修改配置
cat /etc/neutron/neutron.conf
[DEFAULT]
rpc_backend = rabbit
auth_strategy = keystone
……
[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = NEUTRON_PASS
……
[oslo_concurrency]
lock_path = /var/lib/neutron/tmp
……
[oslo_messaging_rabbit]
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
……

# 检测
md5sum /etc/neutron/neutron.conf
77ffab503797be5063c06e8b956d6ed0  /etc/neutron/neutron.conf

9.配置Linuxbridge代理

# 备份文件
cp /etc/neutron/plugins/ml2/linuxbridge_agent.ini{,.bak}
egrep -v '^$|#' /etc/neutron/plugins/ml2/linuxbridge_agent.ini.bak > /etc/neutron/plugins/ml2/linuxbridge_agent.ini

# 修改 配置文件
vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini
……
[linux_bridge]
physical_interface_mappings = provider:eth0
[securitygroup]
enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
[vxlan]
enable_vxlan = False

# 检测
md5sum /etc/neutron/plugins/ml2/linuxbridge_agent.ini
3f474907a7f438b34563e4d3f3c29538  /etc/neutron/plugins/ml2/linuxbridge_agent.ini

10.为 nova 配置网络服务

# 修改配置
vim /etc/nova/nova.conf
[neutron]
...
url = http://controller:9696
auth_url = http://controller:35357
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = NEUTRON_PASS

# 检验
md5sum /etc/nova/nova.conf
517ca200ff4640b2c7aa257024f571d7  /etc/nova/nova.conf

11.重启服务

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

# 检测
neutron agent-list

排错

• 报错信息

  tail -f /var/log/nova/nova-novncproxy.log 
  ……
  2022-09-15 09:59:29.776 21073 INFO nova.console.websocketproxy ……  on: [Errno 113] EHOSTUNREACH
  

• 检查配置文件

• 检查防火墙

  systemctl status firewalld.service 
  ● firewalld.service - firewalld - dynamic firewall daemon
     Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)
     Active: active (running) since Thu 2022-09-15 09:41:04 CST; 22min ago
       Docs: man:firewalld(1)
  

  关闭防火墙

  systemctl stop firewalld.service 
  systemctl disable firewalld.service 
  

  关闭 selinux

  vim /etc/selinux/config 
  ……
  SELINUX=disabled
  

• 重启服务

  systemctl restart openstack-nova-compute.service