Ubuntu Server 20.04最小部署openstack Wallaby(四)——Nova

Compute服務與其他OpenStack服務協作，協調各種工作，是OpenStack的核心服務，這裡需要操作Controller和Compute兩個節點。

1. Controller節點配置

建立資料庫(注意替換NOVA_DBPASS)

mysql -u root -p
MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> CREATE DATABASE nova_cell0;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DBPASS';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DBPASS';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
  IDENTIFIED BY 'NOVA_DBPASS';
           

加載環境變量

. admin-openrc
           

建立使用者并加入角色

openstack user create --domain default --password-prompt nova
openstack role add --project service --user nova admin
           

建立服務

openstack service create --name nova --description "OpenStack Compute" compute
           

建立api節點

openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://controller:8774/v2.1
           

安裝相應的程式

sudo apt-get install nova-api nova-conductor nova-novncproxy nova-scheduler
           

修改配置檔案

sudo vim /etc/nova/nova.conf
           

修改api_database和database(注意替換NOVA_DBPASS)

[api_database]
# ...
connection = mysql+pymysql://nova:[email protected]/nova_api

[database]
# ...
connection = mysql+pymysql://nova:[email protected]/nova
           

修改Default(注意替換RABBIT_PASS)

[DEFAULT]
# ...
transport_url = rabbit://openstack:[email protected]:5672/
my_ip = 192.168.0.100
           

修改api和keystone_authtoken

[api]
# ...
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 = nova
password = NOVA_PASS
           

修改neutron(注意替換NEUTRON_PASS和METADATA_SECRET)

[neutron]
# ...
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_PASS
service_metadata_proxy = true
metadata_proxy_shared_secret = METADATA_SECRET
           

為之後對接neutron準備，METADATA_SECRET可以通過以下指令生成

openssl rand -hex 10
           

修改vnc

[vnc]
enabled = true
# ...
server_listen = $my_ip
server_proxyclient_address = $my_ip
           

修改glance

[glance]
# ...
api_servers = http://controller:9292
           

修改oslo_concurrency

[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp
           

修改placement(注意替換PLACEMENT_PASS)

[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_PASS
           

建立資料庫

sudo su -s /bin/sh -c "nova-manage api_db sync" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
sudo su -s /bin/sh -c "nova-manage db sync" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
           

重新開機服務

sudo service nova-api restart
sudo service nova-scheduler restart
sudo service nova-conductor restart
sudo service nova-novncproxy restart
           

2. Compute節點配置

安裝服務

sudo apt-get install nova-compute
           

修改配置檔案

sudo vim /etc/nova/nova.conf
           

修改Default(注意替換RABBIT_PASS)

[DEFAULT]
# ...
transport_url = rabbit://openstack:[email protected]
my_ip = 192.168.0.100
           

修改api和keystone_authtoken(注意替換NOVA_PASS)

[api]
# ...
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 = nova
password = NOVA_PASS
           

修改neutron(注意替換NEUTRON_PASS)

[neutron]
# ...
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_PASS
           

修改vnc，EXTERNAL_IP是可以外網通路的IP

[vnc]
# ...
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://EXTERNAL_IP:6080/vnc_auto.html
           

修改glance

[glance]
# ...
api_servers = http://controller:9292
           

修改oslo_concurrency

[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp
           

修改placement(注意替換PLACEMENT_PASS)

[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_PASS
           

檢視主機是否支援硬體加速

egrep -c '(vmx|svm)' /proc/cpuinfo
           

如果傳回0就是不支援，修改上面的配置檔案

[libvirt]
# ...
virt_type = qemu
           

重新開機服務

sudo service nova-compute restart
           

将Compute節點加入Cell資料庫(Controller節點運作)

. admin-openrc
sudo su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
           

3. 驗證服務

. admin-openrc
openstack compute service list
openstack catalog list
openstack image list
sudo nova-status upgrade check