OpenStack (six) components deployed calculated Nova

1. Detailed assembly

Function: hosting and management Web Hosting

 

Alternative host: User Request -> nova-api -> queue -> nova-scheduler -> nova-db (filter weights +) -> nova-scheduler -> queue

 

Creating VM: nova-compute -> queue -> nova-conductor -> nava-db -> nova-conductor -> queue -> nova-compute -> get the appropriate resources -> hypervisor -> Create a VM

Access VM:

Command Line

Browser: nova-console -> nova-cert -> nova-console

• Components Introduction

API components:

nova-api: responsible for receiving and responding to external operation request, RESTful format API, is the only way to the external access Nova.

nova-api-metadata: is a sub-nova-api service that provides metadata information to create a VM instance is.

Compute Core components:

nova-scheduler: VM instance is responsible for resource scheduling, recalculated by filtration and the right to decision-making VM instance is created on which the compute nodes.

nova-compute: Management VM instance, by receiving a request message queue, and bear the working operation.

nova-conductor: nova-compute nava-conductor means to achieve access to the database

Console Interface components:

nova-cert: responsible for authentication

nova-consoleauth: User Control Panel authorization verification

nova-novncproxy: VNC proxy, support for browser-based client vnc

2. The control node deployment

• Database Configuration

$ 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';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'nova'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'nova'; 复制代码

• Software Installation

# yum install -y openstack-nova-api openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler openstack-nova-placement-api
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• Modify the configuration file

Modify nova.conf file

vim /etc/nova/nova.conf
[DEFAULT]
# 开发nova服务的api接口，直接取消注释
enabled_apis = osapi_compute,metadata
[api_database]
# 配置nova-api的数据库连接地址
connection = mysql+pymysql://nova:nova@controller/nova_api

[database]
# 配置nova的数据库链接地址
connection = mysql+pymysql://nova:nova@controller/nova
[DEFAULT]
# 配置rabbitmq的链接地址
transport_url = rabbit://openstack:openstack@controller
[api]
# 配置api验证方式，取消注释 auth_strategy = keystone [keystone_authtoken] # 配置keystone的认证信息 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 [DEFAULT] # 配置ip my_ip = 192.168.188.100 [DEFAULT] # 配置使用的网络信息，直接取消注释即可，关闭防火墙驱动 use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver [vnc] enabled = true # 开启vnc功能，配置vnc的联系方式 server_listen = $my_ip server_proxyclient_address = $my_ip [glance] # 配置glance的联系地址 api_servers = http://controller:9292 [oslo_concurrency] # 配置锁文件路径 lock_path = /var/lib/nova/tmp [placement] # 配置资源跟踪用户placement的认证信息 os_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 复制代码

Modify placement-api profile

vim /etc/httpd/conf.d/00-nova-placement-api.conf <Directory /usr/bin> = 2.4> Require all granted <IfVersion < 2.4> Order allow,deny Allow from all

Restart http service

systemctl restart httpd

• Information Synchronization

Synchronous nova-api database information and database information cell0

# su -s /bin/sh -c "nova-manage api_db sync" nova
# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
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Creating cell1 record, synchronize database information nova

# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
# su -s /bin/sh -c "nova-manage db sync" nova
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• Rights Profile

Load admin user environment variables

source admin-openstack.sh

Add a user nova

openstack user create --domain default --password nova nova

The nova user to the service project admin role group

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

Creating nova service, configuration api address records

openstack service create --name nova --description "OpenStack Compute" compute
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
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Create a placement user, the user resource for tracking record. Added to the service group project admin role

$ openstack user create --domain default --password placement placement
$ openstack role add --project service --user placement admin
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Create a placement service, configuration api address records

$ openstack service create --name placement --description "Placement API" placement
$ openstack endpoint create --region RegionOne placement public http://controller:8778
$ openstack endpoint create --region RegionOne placement internal http://controller:8778
$ openstack endpoint create --region RegionOne placement admin http://controller:8778
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• Verify the effect

# systemctl enable openstack-nova-api.service  openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service
openstack-nova-novncproxy.service
# systemctl start openstack-nova-api.service  openstack-nova-consoleauth.service openstack-nova-scheduler.service  openstack-nova-conductor.service openstack-nova-novncproxy.service
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Each endpoint verification services

openstack catalog list

Logging

/ Var / log / Nova

3. compute node deployment

• Ready to work

install software

yum install -y openstack-nova-compute sysfsutils libguestfs-tools

• Modify the configuration file

修改nova.conf配置文件
vim /etc/nova/nova.conf
[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata
[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack@controller
[api]
# ...
auth_strategy = 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
[DEFAULT]
# ... my_ip = 192.168.188.101 #计算节点的IP地址 [DEFAULT] # ... use_neutron = True firewall_driver = nova.virt.firewall.NoopFirewallDriver [vnc] # ... enabled = True server_listen = 0.0.0.0 server_proxyclient_address = $my_ip novncproxy_base_url = http://controller:6080/vnc_auto.html [glance] # ... api_servers = http://controller:9292 [oslo_concurrency] # ... lock_path = /var/lib/nova/tmp [placement] # ... os_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 #Determine whether your compute node supports hardware acceleration for virtual machines: #If this command returns a value of one or greater, your compute node supports hardware acceleration which typically requires no additional configuration. #If this command returns a value of zero, your compute node does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM. [libvirt] # ... virt_type = qemu 复制代码

[DEFAULT]
# 调整计算节点提供的资源参数（因为学习环境底层是VMware虚拟机）
vif_plugging_is_fatal=false
vif_plugging_timeout=10
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Start the service and set the boot from Kai

# systemctl enable libvirtd.service openstack-nova-compute.service
# systemctl start libvirtd.service openstack-nova-compute.service
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• Test results

The control node adding compute nodes

source admin-openstack.sh
oepnstack compute service list
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New computing node record added to the database nova

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

Verify that all API is normal

nova-status upgrade check