OpenStack简介
OpenStack是一个由NASA（美国国家航空航天局）和Rackspace合作研发并发起的，以Apache许可证授权的*软件和开放源代码项目。
OpenStack是一个开源的云计算管理平台项目，由几个主要的组件组合起来完成具体工作。OpenStack支持几乎所有类型的云环境，项目目标是提供实施简单、可大规模扩展、丰富、标准统一的云计算管理平台。OpenStack通过各种互补的服务提供了基础设施即服务（IaaS）的解决方案，每个服务提供API以进行集成。
OpenStack是一个旨在为公共及私有云的建设与管理提供软件的开源项目。它的社区拥有超过130家企业及1350位开发者，这些机构与个人都将OpenStack作为基础设施即服务（IaaS）资源的通用前端。OpenStack项目的首要任务是简化云的部署过程并为其带来良好的可扩展性。本文希望通过提供必要的指导信息，帮助大家利用OpenStack前端来设置及管理自己的公共云或私有云。
OpenStack云计算平台，帮助服务商和企业内部实现类似于 Amazon EC2 和 S3 的云基础架构服务(Infrastructure as a Service, IaaS)。OpenStack 包含两个主要模块：Nova 和 Swift，前者是 NASA 开发的虚拟服务器部署和业务计算模块；后者是 Rackspace开发的分布式云存储模块，两者可以一起用，也可以分开单独用。OpenStack除了有 Rackspace 和 NASA 的大力支持外，还有包括 Dell、Citrix、 Cisco、 Canonical等重量级公司的贡献和支持，发展速度非常快，有取代另一个业界领先开源云平台 Eucalyptus 的态势。
---摘自百度百科
本文主要介绍几个基础服务~
1.环境准备
服务器：两台
系统：CentOS 7.6.1810
关闭防火墙，关闭selinux等基础优化
打开支持虚拟化功能
1.1 hosts解析及主机名定义（两台）
echo "172.16.1.205 openstack-node1" >>/etc/hosts
echo "172.16.1.205 openstack-node2" >>/etc/hosts
两台主机要能上网~
1.2 安装q版本openstack库和selinux（两台）
yum install centos-release-openstack-queens -y
yum install https://rdoproject.org/repos/rdo-release.rpm -y
yum install python-openstackclient openstack-selinux -y
1.3 时间服务
openstack-node1执行：
yum install chrony -y
vim /etc/chrony.conf
allow 172.16.1.0/24 #允许哪些网段同步
systemctl restart chronyd
systemctl enable chronyd
openstack-node2执行：
yum install chrony -y
vim /etc/chrony.conf
server openstack-node1 iburst #连接同步node1的时间
systemctl restart chronyd
systemctl enable chronyd
1.4 数据库
openstack-node1上执行
yum install mariadb mariadb-server python2-PyMySQL -y
vim /etc/my.cnf.d/openstack.cnf
[mysqld]
bind-address = openstack-node1
default-storage-engine = innodb
innodb_file_per_table = on
max_connections =
collation-server = utf8_general_ci
character-set-server = utf8 systemctl enable mariadb.service
systemctl start mariadb.service mysql_secure_installation #mysql安全设置，设置一个密码，一路yyy。
1.5 消息队列
openstack-node1执行
yum install rabbitmq-server -y systemctl enable rabbitmq-server.service
systemctl start rabbitmq-server.service
添加openstack用户并授权
rabbitmqctl add_user openstack openstack #用户名openstack，密码openstack
rabbitmqctl set_permissions openstack ".*" ".*" ".*" #给所有权限
1.6 缓存
openstack-node1执行
yum install memcached python-memcached -y
vi /etc/sysconfig/memcached
OPTIONS="127.0.0.1,::1,openstack-node1" systemctl enable memcached.service
systemctl restart memcached.service
1.7 ETCD
OpenStack服务可以使用Etcd，一种分布式可靠的键值存储，用于分布式密钥锁定，存储配置，跟踪服务生存和其他场景。
yum install etcd -y
vim /etc/etcd/etcd.conf
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
ETCD_LISTEN_PEER_URLS="http://openstack-node1:2380"
ETCD_LISTEN_CLIENT_URLS="http://openstack-node1:2379"
ETCD_NAME="controller"
#[Clustering]
ETCD_INITIAL_ADVERTISE_PEER_URLS="http://openstack-node1:2380"
ETCD_ADVERTISE_CLIENT_URLS="http://openstack-node1:2379"
ETCD_INITIAL_CLUSTER="controller=http://openstack-node1:2380"
ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster-01"
ETCD_INITIAL_CLUSTER_STATE="new"
systemctl enable etcd
systemctl start etcd
这里如果起不来，可以使用ip地址
2.Keystone认证服务
在openstack-node1上安装
名词解释
Tenant：即租户，它是各个服务中的一些可以访问的资源集合或是资源组。它是一个容器，用于组织和隔离资源，或标识对象。
User：即用户，它是用一个数字代表使用openstack云服务的一个人、系统、或服务。身份验证服务将会验证传入的由用户声明将调用的请求。
一个租户可以由多个用户
一个用户可以属于一个或多个租户
用户对租户和操作权限由用户在租户中担任的角色来决定
project：项目同租户~
Token：令牌
Role：角色 权限的集合Roles代表一组用户可以访问的资源权限，例如nova中的虚拟机，glance中的镜像
Service：即服务，一个服务可以确认当前用户是否具有访问资源的权限。但当一个user尝试访问租户内的service时，他必须知道这个service是否存在以及如何访问这个service
Endpoint：即端点，服务的访问点，如果需要访问一个服务，必须知道他的endpoint，每个endpoint的url都对他一个服务实例的访问地址
2.1 创建数据库
mysql -u root -p
CREATE DATABASE keystone;
GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' \
IDENTIFIED BY 'keystone';
GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'%' \
IDENTIFIED BY 'keystone';
2.2 顺便创建其他服务的数据库
glance
CREATE DATABASE glance;
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'localhost' IDENTIFIED BY 'glance';
GRANT ALL PRIVILEGES ON glance.* TO 'glance'@'%' IDENTIFIED BY 'glance';
nova
CREATE DATABASE nova_api;CREATE DATABASE nova;CREATE DATABASE nova_cell0;
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'nova';
neutron
CREATE DATABASE neutron;
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'neutron';
GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'neutron';
cinder
CREATE DATABASE cinder;
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' IDENTIFIED BY 'cinder';
GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' IDENTIFIED BY 'cinder';
2.3 安装配置keystone服务
yum install openstack-keystone httpd mod_wsgi -y
vim /etc/keystone/keystone.conf
[database]
connection = mysql+pymysql://keystone:keystone@openstack-node1/keystone
[token]
provider = fernet
2.4 导入数据
su -s /bin/sh -c "keystone-manage db_sync" keystone
2.5 注册服务
keystone监听5000端口
keystone-manage fernet_setup --keystone-user keystone --keystone-group keystone
keystone-manage credential_setup --keystone-user keystone --keystone-group keystone
keystone-manage bootstrap --bootstrap-password admin \ #账号admin 密码设置admin
--bootstrap-admin-url http://openstack-node1:5000/v3/ \
--bootstrap-internal-url http://openstack-node1:5000/v3/ \
--bootstrap-public-url http://openstack-node1:5000/v3/ \
--bootstrap-region-id RegionOne
2.6 使用环境变量
export OS_USERNAME=admin
export OS_PASSWORD=admin
export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_AUTH_URL=http://openstack-node1:5000/v3
export OS_IDENTITY_API_VERSION=3
2.7 创建服务，角色，用户
openstack project create --domain default \
--description "Service Project" service openstack project create --domain default \
--description "Demo Project" demo openstack user create --domain default \
--password-prompt demo openstack role create user
openstack role add --project demo --user demo user
2.8 配置httpd
vim /etc/httpd/conf/httpd.conf
ServerName openstack-node1 ln -s /usr/share/keystone/wsgi-keystone.conf /etc/httpd/conf.d/
systemctl enable httpd.service
systemctl start httpd.service
2.9 验证
unset OS_AUTH_URL OS_PASSWORD openstack --os-auth-url http://openstack-node1:35357/v3 \
--os-project-domain-name Default --os-user-domain-name Default \
--os-project-name admin --os-username admin token issue 密码admin openstack --os-auth-url http://openstack-node1:5000/v3 \
--os-project-domain-name Default --os-user-domain-name Default \
--os-project-name demo --os-username demo token issue 密码demo
2.10 脚本文件
脚本文件 admin-keystone.sh
export OS_USERNAME=admin
export OS_PASSWORD=admin
export OS_PROJECT_NAME=admin
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_AUTH_URL=http://openstack-node1:5000/v3
export OS_IDENTITY_API_VERSION=
export OS_IMAGE_API_VERSION= 脚本文件 demo-keystone.sh
export OS_USERNAME=demo
export OS_PASSWORD=demo
export OS_PROJECT_NAME=demo
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_DOMAIN_NAME=Default
export OS_AUTH_URL=http://openstack-node1:5000/v3
export OS_IDENTITY_API_VERSION=
export OS_IMAGE_API_VERSION=
3.Glance镜像服务
3.1 安装配置服务
yum install openstack-glance -y
vim /etc/glance/glance-api.conf
[database]
# ...
connection = mysql+pymysql://glance:glance@openstack-node1/glance
[keystone_authtoken]
# ...
auth_uri = http://openstack-node1:5000
auth_url = http://openstack-node1:5000
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = glance
password = glance [paste_deploy]
# ...
flavor = keystone
[glance_store]
# ...
stores = file,http
default_store = file
filesystem_store_datadir = /var/lib/glance/images/ vim /etc/glance/glance-registry.conf
[database]
# ...
connection = mysql+pymysql://glance:glance@openstack-node1/glance
[keystone_authtoken]
# ...
auth_uri = http://openstack-node1:5000
auth_url = http://openstack-node1:5000
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = glance
password = glance [paste_deploy]
# ...
flavor = keystone su -s /bin/sh -c "glance-manage db_sync" glance
systemctl enable openstack-glance-api.service openstack-glance-registry.service
systemctl start openstack-glance-api.service openstack-glance-registry.service . admin-stone.sh
wget http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img openstack image create "cirros" \
--file cirros-0.4.-x86_64-disk.img \
--disk-format qcow2 --container-format bare \
--public
3.2 注册服务
openstack user create --domain default --password-prompt glance
openstack role add --project service --user glance admin
openstack service create --name glance --description "OpenStack Image" image
openstack endpoint create --region RegionOne image public http://openstack-node1:9292
openstack endpoint create --region RegionOne image internal http://openstack-node1:9292
openstack endpoint create --region RegionOne image admin http://openstack-node1:9292
3.3 验证
openstack image list
4.Nova计算服务-控制节点
openstack-node1上执行
4.1 安装配置服务
yum install openstack-nova-api openstack-nova-conductor \
openstack-nova-console openstack-nova-novncproxy \
openstack-nova-scheduler openstack-nova-placement-api -y
vim /etc/nova/nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata
[api_database]
connection = mysql+pymysql://nova:nova@openstack-node1/nova_api [database]
connection = mysql+pymysql://nova:nova@openstack-node1/nova
[DEFAULT]
transport_url = rabbit://openstack:openstack@openstack-node1
[api]
auth_strategy = keystone [keystone_authtoken]
auth_url = http://openstack-node1:5000/v3
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova [DEFAULT]
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
[vnc]
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = openstack-node1
[glance]
api_servers = http://openstack-node1:9292 [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://openstack-node1:5000/v3
username = placement
password = placement
4.2 追加httpd配置
配置允许访问
vim /etc/httpd/conf.d/-nova-placement-api.conf
<Directory /usr/bin>
<IfVersion >= 2.4>
Require all granted
</IfVersion>
<IfVersion < 2.4>
Order allow,deny
Allow from all
</IfVersion>
</Directory> systemctl restart httpd
4.3 注册服务
openstack user create --domain default --password-prompt nova
openstack role add --project service --user nova admin
openstack service create --name nova --description "OpenStack Compute" compute openstack endpoint create --region RegionOne compute public http://openstack-node1:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://openstack-node1:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://openstack-node1:8774/v2.1
openstack user create --domain default --password-prompt placement
openstack role add --project service --user placement admin
openstack service create --name placement --description "Placement API" placement
openstack endpoint create --region RegionOne placement public http://openstack-node1:8778
openstack endpoint create --region RegionOne placement internal http://openstack-node1:8778
openstack endpoint create --region RegionOne placement admin http://openstack-node1:8778
4.4 同步数据
su -s /bin/sh -c "nova-manage api_db sync" nova
su -s /bin/sh -c "nova-manage cell_v2 map_cell0" 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
4.5 启动服务
systemctl enable openstack-nova-api.service \
openstack-nova-consoleauth.service openstack-nova-scheduler.service \
openstack-nova-conductor.service openstack-nova-novncproxy.service systemctl restart openstack-nova-api.service \
openstack-nova-consoleauth.service openstack-nova-scheduler.service \
openstack-nova-conductor.service openstack-nova-novncproxy.service
5. Nova计算服务-计算节点
openstack-node2上执行
5.1 安装配置服务
yum install openstack-nova-compute -y vim /etc/nova/nova.conf
[DEFAULT]
# ...
enabled_apis = osapi_compute,metadata
[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack@openstack-node1
[api]
# ...
auth_strategy = keystone [keystone_authtoken]
auth_url = http://openstack-node1:5000/v3
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = nova
password = nova [DEFAULT]
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver
[vnc]
enabled = True
server_listen = 0.0.0.0
server_proxyclient_address = openstack-node2
novncproxy_base_url = http://openstack-node1:6080/vnc_auto.html
[glance]
api_servers = http://openstack-node1:9292
[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://openstack-node1:5000/v3
username = placement
password = placement [libvirt]
virt_type = kvm
5.2 启动服务
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl restart libvirtd.service openstack-nova-compute.service
5.3 导入数据
查看计算节点服务在openstack-node1上执行
. admin-keystone.sh
openstack compute service list --service nova-compute
su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
5.4 验证
去openstack-node1执行
openstack compute service list
+----+------------------+-----------------+----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+------------------+-----------------+----------+---------+-------+----------------------------+
| | nova-conductor | openstack-node1 | internal | enabled | up | --24T05::56.000000 |
| | nova-scheduler | openstack-node1 | internal | enabled | up | --24T05::57.000000 |
| | nova-consoleauth | openstack-node1 | internal | enabled | up | --24T05::58.000000 |
| | nova-compute | openstack-node2 | nova | enabled | up | --24T05::06.000000 |
+----+------------------+-----------------+----------+---------+-------+----------------------------+
openstack catalog list
+-----------+-----------+----------------------------------------------+
| Name | Type | Endpoints |
+-----------+-----------+----------------------------------------------+
| glance | image | RegionOne |
| | | public: http://openstack-node1:9292 |
| | | RegionOne |
| | | internal: http://openstack-node1:9292 |
| | | RegionOne |
| | | admin: http://openstack-node1:9292 |
| | | |
| placement | placement | RegionOne |
| | | public: http://openstack-node1:8778 |
| | | RegionOne |
| | | admin: http://openstack-node1:8778 |
| | | RegionOne |
| | | internal: http://openstack-node1:8778 |
| | | |
| nova | compute | RegionOne |
| | | public: http://openstack-node1:8774/v2.1 |
| | | RegionOne |
| | | admin: http://openstack-node1:8774/v2.1 |
| | | RegionOne |
| | | internal: http://openstack-node1:8774/v2.1 |
| | | |
| keystone | identity | RegionOne |
| | | internal: http://openstack-node1:5000/v3/ |
| | | RegionOne |
| | | public: http://openstack-node1:5000/v3/ |
| | | RegionOne |
| | | admin: http://openstack-node1:5000/v3/ |
| | | |
+-----------+-----------+----------------------------------------------+
nova-status upgrade check
+--------------------------------+
| Upgrade Check Results |
+--------------------------------+
| Check: Cells v2 |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Placement API |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Resource Providers |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Ironic Flavor Migration |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: API Service Version |
| Result: Success |
| Details: None |
+--------------------------------+
6.Neutron网络服务-控制节点
以网络1，单一扁平网络为例
在openstack-node1上执行
6.1安装配置
yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-linuxbridge ebtables -y vim /etc/neutron/neutron.conf [database]
# ...
connection = mysql+pymysql://neutron:neutron@openstack-node1/neutron
[DEFAULT]
# ...
core_plugin = ml2
service_plugins =
[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack@openstack-node1
[DEFAULT]
# ...
auth_strategy = keystone [keystone_authtoken]
# ...
auth_uri = http://openstack-node1:5000
auth_url = http://openstack-node1:35357
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = NEUTRON_PASS
[DEFAULT]
# ...
notify_nova_on_port_status_changes = true
notify_nova_on_port_data_changes = true [nova]
# ...
auth_url = http://openstack-node1:35357
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = nova [oslo_concurrency]
# ...
lock_path = /var/lib/neutron/tmp
-------------------------------------------------------
vim /etc/neutron/plugins/ml2/ml2_conf.ini
[ml2]
# ...
type_drivers = flat,vlan
[ml2]
# ...
tenant_network_types =
[ml2]
# ...
mechanism_drivers = linuxbridge
[ml2]
# ...
extension_drivers = port_security
[ml2_type_flat]
# ...
flat_networks = provider
[securitygroup]
# ...
enable_ipset = true
vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini
[linux_bridge]
physical_interface_mappings = provider:eth0
[vxlan]
enable_vxlan = false
[securitygroup]
# ...
enable_security_group = true
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
vim /etc/neutron/dhcp_agent.ini
[DEFAULT]
# ...
interface_driver = linuxbridge
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
enable_isolated_metadata = true
vim /etc/neutron/metadata_agent.ini
[DEFAULT]
# ...
nova_metadata_host = openstack-node1
metadata_proxy_shared_secret = wangsiyu
vim /etc/nova/nova.conf
[neutron]
# ...
url = http://openstack-node1:9696
auth_url = http://openstack-node1:35357
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = neutron
service_metadata_proxy = true
metadata_proxy_shared_secret = wangsiyu
6.2 注册服务
openstack user create --domain default --password-prompt neutron
openstack role add --project service --user neutron admin
openstack service create --name neutron --description "OpenStack Networking" network openstack endpoint create --region RegionOne network public http://openstack-node1:9696
openstack endpoint create --region RegionOne network internal http://openstack-node1:9696
openstack endpoint create --region RegionOne network admin http://openstack-node1:9696
6.3 导入数据
ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini su -s /bin/sh -c "neutron-db-manage --config-file /etc/neutron/neutron.conf \
--config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade head" neutron
6.4 重启nova-api并启动neutron
systemctl restart openstack-nova-api.service systemctl enable neutron-server.service \
neutron-linuxbridge-agent.service neutron-dhcp-agent.service \
neutron-metadata-agent.service
systemctl restart neutron-server.service \
neutron-linuxbridge-agent.service neutron-dhcp-agent.service \
neutron-metadata-agent.service
7.Neutron网络服务-计算节点
在openstack-node2上执行
7.1 安装配置
yum install openstack-neutron-linuxbridge ebtables ipset -y
vim /etc/neutron/neutron.conf
[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack@openstack-node1
[DEFAULT]
# ...
auth_strategy = keystone [keystone_authtoken]
# ...
auth_uri = http://openstack-node1:5000
auth_url = http://openstack-node1:35357
memcached_servers = openstack-node1:
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = neutron [oslo_concurrency]
# ...
lock_path = /var/lib/neutron/tmp
配置/etc/neutron/plugins/ml2/linuxbridge_agent.ini
直接从node1直接拷过来 在openstack-node1上执行
scp /etc/neutron/plugins/ml2/linuxbridge_agent.ini openstack-node2:/etc/neutron/plugins/ml2/
vim /etc/nova/nova.conf
[neutron]
url = http://openstack-node1:9696
auth_url = http://openstack-node1:35357
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = neutron
7.2 重启nova-compute服务并启动neutron服务
systemctl restart openstack-nova-compute.service
systemctl enable neutron-linuxbridge-agent.service
systemctl restart neutron-linuxbridge-agent.service
8.开始创建虚拟机
在openstack-node1上执行
8.1 验证各个服务
glance和keystone
openstack image list
+--------------------------------------+--------+------------+
| ID | Name | Status |
+--------------------------------------+--------+------------+
| 7e17b824-54f1-435b-85af-a9b6ec3a42b6 | cirros | active |
+--------------------------------------+--------+------------+
nova
+--------------------------------------+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+-------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down |
+--------------------------------------+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+-------------+
| cf136374-554d-44ea-b996-86df0256852c | nova-conductor | openstack-node1 | internal | enabled | up | --26T05::34.000000 | - | False |
| a489d766-3a03-48dd-99f4-b8a9b6ad811b | nova-scheduler | openstack-node1 | internal | enabled | up | --26T05::37.000000 | - | False |
| c26ef7b6-a1df-49b8-9c3c-936d5a6fb2c6 | nova-consoleauth | openstack-node1 | internal | enabled | up | --26T05::34.000000 | - | False |
| 2ddc04b6-a50b-40aa--554a2d4ba844 | nova-compute | openstack-node2 | nova | enabled | up | --25T04::18.000000 | - | False |
+--------------------------------------+------------------+-----------------+----------+---------+-------+----------------------------+-----------------+-------------+
neutron
+--------------------------------------+--------------------+-----------------+-------------------+-------+----------------+---------------------------+
| id | agent_type | host | availability_zone | alive | admin_state_up | binary |
+--------------------------------------+--------------------+-----------------+-------------------+-------+----------------+---------------------------+
| 0a1cd690-ff2e-49f9-a1cb-41adca653702 | Linux bridge agent | openstack-node2 | | :-) | True | neutron-linuxbridge-agent |
| 2d32eb51-b067--b6ee-734e8de6be4c | DHCP agent | openstack-node1 | nova | :-) | True | neutron-dhcp-agent |
| 9656ef44-ccf7-4d01-bb19-8384d5edb9ce | Linux bridge agent | openstack-node1 | | :-) | True | neutron-linuxbridge-agent |
| e5d0f391--42c5-a358-765aedb0ea8d | Metadata agent | openstack-node1 | | :-) | True | neutron-metadata-agent |
+--------------------------------------+--------------------+-----------------+-------------------+-------+----------------+---------------------------+
nova四个up，neutron四个笑脸说明成功
8.2 创建网络
创建网络
. admin-keystone.sh
openstack network create --share --external \
--provider-physical-network provider \
--provider-network-type flat provider
neutron net-list
+--------------------------------------+----------+----------------------------------+---------+
| id | name | tenant_id | subnets |
+--------------------------------------+----------+----------------------------------+---------+
| 37141da8-97cc-4cac-b592-7c194179331f | provider | 05e7ebc641f745c9a99cedc7d5fab789 | |
+--------------------------------------+----------+----------------------------------+---------+
创建子网
openstack subnet create --network provider- \
--allocation-pool start=172.16.1.10,end=172.16.1.254 \
--dns-nameserver 114.114.114.114 --gateway 172.16.1.1 \
--subnet-range 172.16.1.0/ provider-subnet
8.3创建虚拟机类型，键值对和安全策略
openstack flavor create --id --vcpus --ram --disk m1.nano
. demo-keystone.sh
ssh-keygen -q -N ""
openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey
+-------------+-------------------------------------------------+
| Field | Value |
+-------------+-------------------------------------------------+
| fingerprint | b8::c8::d9::f6:::7f:7d:4e:5f:1b:f6: |
| name | mykey |
| user_id | aba5b2569a324ac99b1183353fa07b5b |
+-------------+-------------------------------------------------+
查看键值对
openstack keypair list
+-------+-------------------------------------------------+
| Name | Fingerprint |
+-------+-------------------------------------------------+
| mykey | b8::c8::d9::f6:::7f:7d:4e:5f:1b:f6: |
+-------+-------------------------------------------------+
安全组
开放ping和ssh
openstack security group rule create --proto icmp default
openstack security group rule create --proto tcp --dst-port default
8.4 启动虚拟机
openstack server create --flavor m1.nano --image cirros --security-group default --key-name mykey provider-test
openstack server list
+--------------------------------------+---------------+---------+----------------------+--------+---------+
| ID | Name | Status | Networks | Image | Flavor |
+--------------------------------------+---------------+---------+----------------------+--------+---------+
| af56f2b3-671f--b772-450aa28841a4 | provider-test | running | provider=172.16.1.14 | cirros | m1.nano |
+--------------------------------------+---------------+---------+----------------------+--------+---------+
获取url
openstack console url show provider-test
+-------+--------------------------------------------------------------------------------------+
| Field | Value |
+-------+--------------------------------------------------------------------------------------+
| type | novnc |
| url | http://openstack-node1:6080/vnc_auto.html?token=ee12db7a-8ac5-49cf-9100-5b0af30337b8 |
+-------+--------------------------------------------------------------------------------------+
访问这个地址，没有报错而且可以看到虚拟机说明创建成功
9.Horizon web页面
9.1 安装配置服务
yum install openstack-dashboard -y vim /etc/openstack-dashboard/local_settings ALLOWED_HOSTS = ['*',]
OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True
OPENSTACK_API_VERSIONS = {
"data-processing": 1.1,
"identity": ,
"image": ,
"volume": ,
"compute": ,
}
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "Default" SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': 'openstack-node1:11211',
}
} OPENSTACK_HOST = "openstack-node1"
OPENSTACK_KEYSTONE_URL = "http://%s:5000/v3" % OPENSTACK_HOST
OPENSTACK_KEYSTONE_DEFAULT_ROLE = "user" OPENSTACK_NEUTRON_NETWORK = {
...
'enable_router': False,
'enable_quotas': False,
'enable_distributed_router': False,
'enable_ha_router': False,
'enable_lb': False,
'enable_firewall': False,
'enable_vpn': False,
'enable_fip_topology_check': False,
} TIME_ZONE = "Asia/Shanghai" vim /etc/httpd/conf.d/openstack-dashboard.conf
WSGIApplicationGroup %{GLOBAL} systemctl restart httpd.service memcached.service
systemctl enable httpd.service
主机访问
http://openstack-node1/dashboard #如果没做解析就要用ip访问
账号admin 密码admin 域default
10.Cinder存储管理服务
cinder
用于管理存储
cinder-api
接收api请求，并将其路由到cinder-volume执行
cinder-volume
与块存储服务和例如cinder-scheduler的进程进行直接交互
cinder-scheduler守护进程
选择最优存储提供节点来创建卷与nova-schduler组件类似
cinder-backup daemon
cinder-backup服务提供任何种类备份卷到一个备份存储提供者，就像cinder-volume服务，它与多种存储提供者在驱动架构下进行交互
消息队列
块存储的进程之间的路由信息
在openstack-node1执行
10.1 安装配置服务
yum install openstack-cinder -y vim /etc/cinder/cinder.conf
[database]
connection = mysql+pymysql://cinder:cinder@openstack-node1/cinder
[DEFAULT]
transport_url = rabbit://openstack:openstack@openstack-node1
[DEFAULT]
auth_strategy = keystone [keystone_authtoken]
auth_uri = http://openstack-node1:5000
auth_url = http://openstack-node1:5000
memcached_servers = openstack-node1:
auth_type = password
project_domain_id = default
user_domain_id = default
project_name = service
username = cinder
password = cinder [oslo_concurrency]
lock_path = /var/lib/cinder/tmp su -s /bin/sh -c "cinder-manage db sync" cinder #导入数据 vim /etc/nova/nova.conf
os_region_name = RegionOne
systemctl restart openstack-nova-api.service
systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service
systemctl restart openstack-cinder-api.service openstack-cinder-scheduler.service
10.2 注册服务
. admin-keystone.sh openstack user create --domain default --password-prompt cinder
openstack role add --project service --user cinder admin
openstack service create --name cinderv2 --description "OpenStack Block Storage" volumev2
创建endpoint
openstack endpoint create --region RegionOne volumev2 public http://openstack-node1:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev2 internal http://openstack-node1:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev2 admin http://openstack-node1:8776/v2/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 public http://openstack-node1:8776/v3/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 internal http://openstack-node1:8776/v3/%\(project_id\)s
openstack endpoint create --region RegionOne volumev3 admin http://openstack-node1:8776/v3/%\(project_id\)s
10.3 cinder存储
cinder存储节点openstack-node1
没有cinder的时候存在本地 /var/lib/nova/instances/ yum install lvm2 device-mapper-persistent-data
systemctl enable lvm2-lvmetad.service
systemctl start lvm2-lvmetad.service yum install openstack-cinder targetcli python-keystone -y
创建磁盘
关机挂载盘
创建
pvcreate /dev/sdb
创建cinder的磁盘
vgcreate cinder-volumes /dev/sdb
vgdisplay
输出
File descriptor (/dev/pts/) leaked on vgdisplay invocation. Parent PID : -bash
--- Volume group ---
VG Name cinder-volumes
System ID
Format lvm2
Metadata Areas
Metadata Sequence No
VG Access read/write
VG Status resizable
MAX LV
Cur LV
Open LV
Max PV
Cur PV
Act PV
VG Size <8.00 GiB
PE Size 4.00 MiB
Total PE
Alloc PE / Size /
Free PE / Size / <8.00 GiB
VG UUID edVGVd-YrEV-7o8W-Eo78-3GZ3-a2uy-CtN8NW
10.4 配置lvm
vim /etc/cinder/cinder.conf
[DEFAULT]
enabled_backends = lvm
glance_api_servers = http://openstack-node1:9292
target_ip_address = openstack-node1 #尾部追加
[lvm]
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_group = cinder-volumes
iscsi_protocol = iscsi
iscsi_helper = lioadm
10.5 启动服务并挂载磁盘
systemctl enable openstack-cinder-volume.service target.service
systemctl restart openstack-cinder-volume.service target.service
挂载
mkfs.xfs /dev/vdc
mkdir /data
mount /dev/vdc /data
11.Cinder用NFS存储
openstack-node2执行
11.1安装，配置，启动服务
yum install openstack-cinder python-keystone -y
yum install nfs-utils rpcbind -y 创建挂载目录
mkdir /data/nfs -p
echo "/data/nfs *(rw,sync,no_root_squash)" >>/etc/exports
systemctl restart rpcbind nfs
systemctl enable rpcbind nfs
去node1拷贝配置文件到node2
scp /etc/cinder/cinder.conf openstack-node2:/etc/cinder echo "openstack-node2:/data/nfs" >>/etc/cinder/nfs_shares #填共享的目录 域名、IP:/目录 vim /etc/cinder/cinder.conf
[DEFAULT]
enabled_backends = nfs
[nfs]
volume_driver = cinder.volume.drivers.nfs.NfsDriver
nfs_shares_config = /etc/cinder/nfs_shares
nfs_mount_point_base = $state_path/mn #state_path = /var/lib/cinder
cd /etc/cinder/ && chown root:cinder nfs_shares systemctl enable openstack-cinder-volume
systemctl start openstack-cinder-volume
去openstack-node1上查看
cinder service-list
+------------------+---------------------+------+---------+-------+----------------------------+-----------------+
| Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+------------------+---------------------+------+---------+-------+----------------------------+-----------------+
| cinder-scheduler | openstack-node1 | nova | enabled | up | --26T06::43.000000 | - |
| cinder-volume | openstack-node2@nfs | nova | enabled | up | --26T01::08.000000 | - |
| cinder-volume | openstack-node1@lvm | nova | enabled | up | --26T06::39.000000 | - |
+------------------+---------------------+------+---------+-------+----------------------------+-----------------+
11.2 创建NFS和ISCSI类型
cinder type-create NFS
cinder type-create ISCSI
11.3 配置volume_backend_name
openstack-node1:
vim /etc/cinder/cinder.conf
[lvm]
volume_backend_name = ISCSI-test #名称可以随便起
systemctl restart openstack-cinder-volume openstack-node2:
echo "volume_backend_name = NFS-test" >>/etc/cinder/cinder.conf
systemctl restart openstack-cinder-volume
类型和存储关联openstack-node1
cinder type-key NFS set volume_backend_name=NFS-test #第一个NFS是创建的类型，第二个NFS是在配置文件里配置的名称
cinder type-key ISCSI set volume_backend_name=ISCSI-test
去创建卷
选NFS
创建成功~
cinder用其他存储的公式（例如ceph）
1.存储准备好
2.安装cinder-volume
3.配置cinder.conf 增加
[ceph]
volume_drivers = ceph的驱动
...
volume_backend_name = ceph-test
4.启动cinder-volume
5.创建类型
cinder type-create ceph
6.关联类型
cinder type-key ceph set volume_backend_name = ceph-test
至此openstack基础搭建完毕
-------------------------------------------------------------------------------------------------------
学习笔记&面试题
虚拟机创建流程
三种方法：通过dashboard创建，通过命令行创建，通过openstack-api进行创建
1.第一个阶段：keystone交互阶段 登录dashboard的时候 发送一个请求用户名密码给keystone，获取token
带着token访问nova-api 发送要创建虚拟机的请求，nova-api去keystone验证token有效性
2.第二个阶段：nova组件之间的交互，验证成功后
nova-api把信息写入数据库，同时把请求放到消息队列中
nova-scheduler连接数据库获取数据并调度，选一个nova-compute进行创建
nova-compute去队列提取消息并创建虚拟机
nova-compute连接nova-conductor获取实例信息，nova-conductor去数据库获取数据
3.第三个阶段：nova服务和其他服务的交互获取镜像，网络，存储，glance去keystone验证，网络去keystone验证，cinder去keystone验证
4.第四个阶段：创建虚拟机nova-compute 调用hypervisor（kvm）通过libvirtd（kvm管理工具）创建虚拟机，写入数据库，同时nova-api轮询数据库，获取当前虚拟机的状态
scheduler 调度选择当前计算节点能不能满足创建虚拟机的条件，对符合的机器进行权重的计算，默认会选择一个资源比较多的宿主机创建，
conductor 代替nova其他服务访问数据库，是一个连接数据的中间件，为了保证数据库的安全性
keystone 两大功能，用户验证，服务目录管理需要注册endpoint 三种admin 内部使用，公共的api admin端口35357 其他的是5000
消息队列 交通枢纽，nova组件的交互通过消息队列
单一扁平网络 虚拟机和宿主机在同一个网络里，不需要路由
openstack和kvm区别 openstack是iaas kvm是虚拟化技术，openstack使用kvm技术来创建虚拟机
创建不了虚拟机怎么办：
读取所有日志寻找error内容定位问题
如果使用openstack做企业私有云对企业有什么优势：
使用虚拟化提高物理机的资源利用率，如果一台机器起多个进程，两大难题，资源不隔离，管理难，端口冲突，
1.openstsck社区活跃，会的人多，有问题好解决，2.架构清晰，3.python写的，运维会py比较多，cloudstack是java写的
FAQ：小坑~
时间不同步导致服务出问题重启之后nova起不来等，具体查看nova日志
如果nfs磁盘创建不了 看看nfs节点服务是否启动，挂载点是否挂载了，具体查看cinder日志
什么报错看什么日志，python日志也好理解~