openstack雲計算（二）：Openstack rocky 部署三 nova計算節點部署

Openstack 雲計算（二）： Openstack Rocky部署三 nova 部署與驗證 (計算節點)

標籤（空格分隔）： openstack系列

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• 一：nova計算節點初始化
• 二：nova 計算節點配置

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一： nova計算節點初始化

1.1 配置主機名

login: 10.0.0.31 

cat /etc/hosts 
---
10.0.0.11   controller
10.0.0.31   computer1
10.0.0.41   block1
10.0.0.51       object1
10.0.0.52       object2
---

1.2 關閉防火牆和selinux

systemctl stop firewalld.service
systemctl disable firewalld.service
systemctl status firewalld.service

關閉 selinux

setenforce 0
getenforce
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/sysconfig/selinux
grep SELINUX=disabled /etc/sysconfig/selinux

1.3 配置時間同步

1）在在計算節點配置時間同步服務
# 安裝時間同步的軟件包

yum install chrony -y
2）編輯配置文件確認有如下配置
vim /etc/chrony.conf
-------------------------------------
# 修改引用控制節點controller的IP
server 10.0.0.11 iburst
-------------------------------------
3）重啓chronyd服務，並配置開機自啓動
systemctl restart chronyd.service
systemctl status chronyd.service
systemctl enable chronyd.service
systemctl list-unit-files |grep chronyd.service
4）設置時區，首次同步時間
timedatectl set-timezone Asia/Shanghai
chronyc sources -v 
timedatectl status
# 至此，時間同步配置完成

1.4 配置相關yum源

配置阿里雲的base和epel源

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

mv /etc/yum.repos.d/epel.repo /etc/yum.repos.d/epel.repo.backup
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

安裝openstack-rocky的倉庫
yum install centos-release-openstack-rocky -y
yum clean all
yum makecache
yum update -y
安裝openstack客戶端相關軟件
yum install python-openstackclient openstack-selinux -y
yum install openstack-nova-compute python-openstackclient openstack-utils -y

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1.5 配置文件（/etc/nova/nova.conf）

openstack-config --set  /etc/nova/nova.conf DEFAULT my_ip 10.0.0.31
openstack-config --set  /etc/nova/nova.conf DEFAULT use_neutron True
openstack-config --set  /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set  /etc/nova/nova.conf DEFAULT enabled_apis  osapi_compute,metadata
openstack-config --set  /etc/nova/nova.conf DEFAULT transport_url  rabbit://openstack:openstack@controller
openstack-config --set  /etc/nova/nova.conf api auth_strategy  keystone 
openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_url http://controller:5000/v3
openstack-config --set  /etc/nova/nova.conf keystone_authtoken memcached_servers controller:11211
openstack-config --set  /etc/nova/nova.conf keystone_authtoken auth_type password
openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_domain_name default
openstack-config --set  /etc/nova/nova.conf keystone_authtoken user_domain_name default
openstack-config --set  /etc/nova/nova.conf keystone_authtoken project_name  service
openstack-config --set  /etc/nova/nova.conf keystone_authtoken username nova
openstack-config --set  /etc/nova/nova.conf keystone_authtoken password nova
openstack-config --set  /etc/nova/nova.conf vnc enabled True
openstack-config --set  /etc/nova/nova.conf vnc server_listen 0.0.0.0
openstack-config --set  /etc/nova/nova.conf vnc server_proxyclient_address  '$my_ip'
openstack-config --set  /etc/nova/nova.conf vnc novncproxy_base_url  http://controller:6080/vnc_auto.html
openstack-config --set  /etc/nova/nova.conf glance api_servers http://controller:9292
openstack-config --set  /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
openstack-config --set  /etc/nova/nova.conf placement region_name RegionOne
openstack-config --set  /etc/nova/nova.conf placement project_domain_name Default
openstack-config --set  /etc/nova/nova.conf placement project_name service
openstack-config --set  /etc/nova/nova.conf placement auth_type password
openstack-config --set  /etc/nova/nova.conf placement user_domain_name Default
openstack-config --set  /etc/nova/nova.conf placement auth_url http://controller:5000/v3
openstack-config --set  /etc/nova/nova.conf placement username placement
openstack-config --set  /etc/nova/nova.conf placement password placement

egrep -v "^#|^$" /etc/nova/nova.conf
---
[DEFAULT]
my_ip = 10.0.0.31
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:openstack@controller
log_date_format=%Y-%m-%d %H:%M:%S   ### 打開 分割日誌
log_file=nova-compute.log           ### 打開日誌
log_dir=/var/log/nova               ###打開日誌目錄
[api]
auth_strategy = keystone
[api_database]
[barbican]
[cache]
[cells]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[database]
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://controller:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken]
auth_url = http://controller:5000/v3
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova
[libvirt]
virt_type=kvm
[matchmaker_redis]
[metrics]
[mks]
[neutron]
[notifications]
[osapi_v21]
[oslo_concurrency]
lock_path = /var/lib/nova/tmp
[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[oslo_messaging_zmq]
[oslo_middleware]
[oslo_policy]
[pci]
[placement]
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = placement
[placement_database]
[powervm]
[profiler]
[quota]
[rdp]
[remote_debug]
[scheduler]
[serial_console]
[service_user]
[spice]
[upgrade_levels]
[vault]
[vendordata_dynamic_auth]
[vmware]
[vnc]
enabled = True
server_listen = 0.0.0.0
server_proxyclient_address = 10.0.0.31
novncproxy_base_url = http://controller:6080/vnc_auto.html
[workarounds]
[wsgi]
[xenserver]
[xvp]
[zvm]
---

---

1.6 配置虛擬機的硬件加速

# 首先肯定您的計算節點是否支持虛擬機的硬件加速。

egrep -c '(vmx|svm)' /proc/cpuinfo
# 若是返回位0，表示計算節點不支持硬件加速，須要配置libvirt使用QEMU方式管理虛擬機，使用如下命令：

openstack-config --set  /etc/nova/nova.conf libvirt virt_type  qemu
egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'
# 若是返回爲其餘值，表示計算節點支持硬件加速且不須要額外的配置，使用如下命令：

openstack-config --set  /etc/nova/nova.conf libvirt virt_type  kvm 
egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'

啓動nova相關服務，並配置爲開機自啓動
須要啓動2個服務

systemctl start libvirtd.service openstack-nova-compute.service 
systemctl status libvirtd.service openstack-nova-compute.service
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl list-unit-files |grep libvirtd.service
systemctl list-unit-files |grep openstack-nova-compute.service

1.7 將計算節點增長到cell數據庫

# 如下命令在控制節點操做：

cd /openstack
source keystone-admin-pass.sh 
# 檢查確認數據庫有新的計算節點

openstack compute service list --service nova-compute

手動將新的計算節點添加到openstack集羣

su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

---

設置新建立節點自動註冊的任務（已經添加到配置文件中）

vim /etc/nova/nova.conf
---
[scheduler]
discover_hosts_in_cells_interval = 300
---
至此，計算節點安裝完畢，接下來須要進行測試，檢查nova節點的狀態

1.8 在控制節點進行驗證

參考文章：https://docs.openstack.org/nova/rocky/install/compute-install-rdo.html

1）應用管理員環境變量腳本
cd /openstack
source keystone-admin-pass.sh 
2）列表查看安裝的nova服務組件
# 驗證是否成功註冊並啓動了每一個進程

openstack compute service list

在身份認證服務中列出API端點以驗證其鏈接性

openstack catalog list

在鏡像服務中列出已有鏡像已檢查鏡像服務的鏈接性
openstack image list

檢查nova各組件的狀態

檢查placement API和cell服務是否正常工做

nova-status upgrade check

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至此，nova計算節點，安裝完畢並添加到openstack集羣中