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
- 一：nova計算節點初始化
- 二：nova 計算節點配置
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以下配置
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
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
# 首先確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
# 如果返回位0，表示計算節點不支持硬件加速，需要配置libvirt使用QEMU方式管理虛擬機，使用以下命令：
openstack-config --set /etc/nova/nova.conf libvirt virt_type qemu
egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'
# 如果返回爲其他值，表示計算節點支持硬件加速且不需要額外的配置，使用以下命令：
openstack-config --set /etc/nova/nova.conf libvirt virt_type kvm
egrep -v "^#|^$" /etc/nova/nova.conf|grep 'virt_type'
啓動nova相關服務，並配置爲開機自啓動
需要啓動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 將計算節點增加到cell數據庫
# 以下命令在控制節點操作：
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
設置新創建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，接下來需要進行測試，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個進程
openstack compute service list
在身份認證服務中列出API端點以驗證其連接性
openstack catalog list
在鏡像服務中列出已有鏡像已檢查鏡像服務的連接性
openstack image list
檢查nova各組件的狀態
檢查placement API和cell服務是否正常工作
nova-status upgrade check
至此，nova計算節點，安裝完畢並添加到openstack集羣中