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领取OpenStack安装教程录屏资料
前文指路：
http://thinkmo.com.cn/details/id/340.html
4.5、安装Neutron
4.5.1、安装、配置控制节点
创建数据库：
#进入数据库 [root@controller /]# mysql -u root -p #创建数据库 MariaDB [(none)] CREATE DATABASE neutron; #授权 MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' \ IDENTIFIED BY 'NEUTRON_DBPASS'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' \ IDENTIFIED BY 'NEUTRON_DBPASS';
获取管理员的CLI命令：
[root@controller /]# . admin-openrc
创建服务凭证：
#创建Neutron用户
[root@controller /]# openstack user create --domain default --password-prompt neutron
#此处使用默认密码：NEUTRON_PASS
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | fdb0f541e28141719b6a43c8944bf1fb |
| name | neutron |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
#添加Neutron用户的juese
[root@controller /]# openstack role add --project service --user neutron admin
#创建Neutron服务实例
[root@controller /]# openstack service create --name neutron \
--description "OpenStack Networking" network
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Networking |
| enabled | True |
| id | f71529314dab4a4d8eca427e701d209e |
| name | neutron |
| type | network |
+-------------+----------------------------------+创建网络服务API端点：
[root@controller /]# openstack endpoint create --region RegionOne \ network public http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 85d80a6d02fc4b7683f611d7fc1493a3 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ network internal http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 09753b537ac74422a68d2d791cf3714f | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ network admin http://controller:9696 +--------------+----------------------------------+ | Field | Value | +--------------+----------------------------------+ | enabled | True | | id | 1ee14289c9374dffb5db92a5c112fc4e | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | f71529314dab4a4d8eca427e701d209e | | service_name | neutron | | service_type | network | | url | http://controller:9696 | +--------------+----------------------------------+
配置网络：
此处有两种网络可选：provider networks、self-service networks。本次使用self-service networks。
安装组件：
[root@controller /]# yum install openstack-neutron openstack-neutron-ml2 \ openstack-neutron-linuxbridge ebtables
配置neutron.conf：
[root@controller /]# vim /etc/neutron/neutron.conf [database] connection = mysql+pymysql://neutron:NEUTRON_DBPASS@controller/neutron [DEFAULT] core_plugin = ml2 service_plugins = router allow_overlapping_ips = true [DEFAULT] transport_url = rabbit://openstack:RABBIT_PASS@controller auth_strategy = keystone [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 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://controller:35357 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = nova password = NOVA_PASS [oslo_concurrency] lock_path = /var/lib/neutron/tmp
配置ml2_conf.ini。
配置模块化第 2 层 (ML2) 插件：
[root@controller /]# vim /etc/neutron/plugins/ml2/ml2_conf.ini [ml2] type_drivers = flat,vlan,vxlan tenant_network_types = vxlan mechanism_drivers = linuxbridge,l2population extension_drivers = port_security [ml2_type_flat] flat_networks = provider [ml2_type_vxlan] vni_ranges = 1:1000 [securitygroup] enable_ipset = true
配置linuxbridge_agent.ini。
配置 Linux 网桥代理：
#配置文件 [root@controller /]# vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini [linux_bridge] #PROVIDER_INTERFACE_NAME：替换为本机网卡名，eg：ens33 physical_interface_mappings = provider:PROVIDER_INTERFACE_NAME [vxlan] enable_vxlan = true #OVERLAY_INTERFACE_IP_ADDRESS：替换为本机网卡IP local_ip = OVERLAY_INTERFACE_IP_ADDRESS l2_population = true [securitygroup] enable_security_group = true firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver #验证linux系统内核是否支持网桥筛选器，下面的参数输出值均为1，说明支持。 [root@controller /]# sysctl net.bridge.bridge-nf-call-iptables net.bridge.bridge-nf-call-iptables = 1 [root@controller /]# sysctl net.bridge.bridge-nf-call-ip6tables net.bridge.bridge-nf-call-ip6tables = 1 #（可选）若上述的参数不为1，则需要手动配置/etc/sysctl.conf [root@controller /]# vim /etc/sysctl.conf net.bridge.bridge-nf-call-iptables = 1 net.bridge.bridge-nf-call-ip6tables = 1
配置第三层代理。
为自助服务虚拟网络提供路由和 NAT 服务：
[root@controller /]# vim /etc/neutron/dhcp_agent.ini [DEFAULT] interface_driver = linuxbridge dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq enable_isolated_metadata = true
配置DHCP代理。
为虚拟网络提供 DHCP 服务：
[root@controller /]# vim /etc/neutron/dhcp_agent.ini [DEFAULT] interface_driver = linuxbridge dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq enable_isolated_metadata = true
配置元数据代理：
[root@controller /]# vim /etc/neutron/metadata_agent.ini [DEFAULT] nova_metadata_host = controller metadata_proxy_shared_secret = METADATA_SECRET
配置Compute服务使用Networking服务。
即：配置Nova服务使用Neutron服务。
[root@controller /]# vim /etc/nova/nova.conf [neutron] url = http://controller:9696 auth_url = http://controller:35357 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
配置环境：
[root@controller /]# vim /etc/neutron/neutron.conf #（注意：使用all in one的安装方式，此处的数据库不可以注释，使用所有节点均在同一台主机中，注释掉会导致网络组件无法使用） #注释[database]的connection，此处不需要使用数据库 [database] #connection=mysql+pymysql://neutron:NEUTRON_DBPASS@controller/neutron [DEFAULT] transport_url = rabbit://openstack:RABBIT_PASS@controller auth_strategy = keystone [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = NEUTRON_PASS [oslo_concurrency] lock_path = /var/lib/neutron/tmp
4.5.2、安装、配置计算节点
安装组件：
[root@controller /]# yum install openstack-neutron-linuxbridge ebtables ipset
（该步骤可省略）配置通用组件。
该步骤可省略，因为all in one安装方式，计算节点和控制节点在同一台主机中，4.5.1中已经配置了neutron.conf文件。因此该步骤可省略。
[root@controller /]# vim /etc/neutron/neutron.conf #（注意：使用all in one的安装方式，此处的数据库不可以注释，使用所有节点均在同一台主机中，注释掉会导致网络组件无法使用） #注释[database]的connection，此处不需要使用数据库 [database] #connection=mysql+pymysql://neutron:NEUTRON_DBPASS@controller/neutron [DEFAULT] transport_url = rabbit://openstack:RABBIT_PASS@controller auth_strategy = keystone [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:35357 memcached_servers = controller:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = neutron password = NEUTRON_PASS [oslo_concurrency] lock_path = /var/lib/neutron/tmp
（该步骤可省略）配置网络。
该步骤可省略，因为all in one安装方式，计算节点和控制节点在同一台主机中，4.5.1中已经配置了linuxbridge_agent.ini文件。因此该步骤可省略。
[root@controller /]# . admin-openrc #列出加载的扩展以验证neutron-server进程是否成功启动 [root@controller /]# openstack extension list --network +---------------------------+---------------------------+----------------------------+ | Name | Alias | Description | +---------------------------+---------------------------+----------------------------+ | Default Subnetpools | default-subnetpools | Provides ability to mark | | | | and use a subnetpool as | | | | the default | | Availability Zone | availability_zone | The availability zone | ...... ......
验证网络是否配置好：
[root@controller /]# . admin-openrc #列出加载的扩展以验证neutron-server进程是否成功启动 [root@controller /]# openstack extension list --network +---------------------------+---------------------------+----------------------------+ | Name | Alias | Description | +---------------------------+---------------------------+----------------------------+ | Default Subnetpools | default-subnetpools | Provides ability to mark | | | | and use a subnetpool as | | | | the default | | Availability Zone | availability_zone | The availability zone | ...... ......
（该步骤可省略）配置Compute服务使用Networking服务。
即：配置Nova服务使用Neutron服务。
该步骤可省略，因为all in one安装方式，计算节点和控制节点在同一台主机中，4.5.1中已经配置了nova.conf 文件。因此该步骤可省略。
[root@controller /]# vim /etc/nova/nova.conf [neutron] url = http://controller:9696 auth_url = http://controller:35357 auth_type = password project_domain_name = default user_domain_name = default region_name = RegionOne project_name = service username = neutron password = NEUTRON_PASS
配置环境：
重启、开机自启动：
[root@controller /]# systemctl restart openstack-nova-compute.service [root@controller /]# systemctl enable neutron-linuxbridge-agent.service [root@controller /]# systemctl start neutron-linuxbridge-agent.service
4.6、安装Horizon
4.6.1、安装Horizon步骤
该组件选用手动安装的方式，不使用source的方式安装。
安装dashboard软件：
[root@controller /]# yum install openstack-dashboard
配置local_settings：
[root@controller /]# vim /etc/openstack-dashboard/local_settings
#配置主机名
OPENSTACK_HOST = "controller"
#'*' 允许所有主机访问
ALLOWED_HOSTS = ['*', 'two.example.com']
#新增SESSION_ENGINE
SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
#修改原有的CACHES，为下面的部分
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': 'controller:11211',
}
}
OPENSTACK_KEYSTONE_URL = "http://%s:5000/v3" % OPENSTACK_HOST
OPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True
#修改原有的OPENSTACK_API_VERSIONS为：
OPENSTACK_API_VERSIONS = {
"identity": 3,
"image": 2,
"volume": 2,
}
OPENSTACK_KEYSTONE_DEFAULT_DOMAIN = "Default"
OPENSTACK_KEYSTONE_DEFAULT_ROLE = "user"
#（不需要设置）只有在选择网络为provider networks时才需要设置该步骤
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,
}
#（可选）设置时区
TIME_ZONE = "TIME_ZONE"配置openstack-dashboard.conf：
[root@controller /]# vim /etc/httpd/conf.d/openstack-dashboard.conf
#新增
WSGIApplicationGroup %{GLOBAL}配置环境：
#重启httpd、memcached服务 [root@controller /]# systemctl restart httpd.service memcached.service
4.6.2、验证是否成功安装
在浏览器，登录下面的地址：
#方式1： http://controller/dashboard #方式2： http://本机网卡IP/dashboard
登录选项：
domain：default；
username：admin；
password：ADMIN_PASS。
结果：
4.7、安装Cinder
4.7.1、安装、配置存储节点
安装LVM：
[root@controller /]# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created
创建LVM物理卷。
注意：此处的sdb，表示的是第二块硬盘。（同理，sda表示第一块硬盘）
[root@controller /]# pvcreate /dev/sdb Physical volume "/dev/sdb" successfully created
创建 LVM 卷组cinder-volumes：
[root@controller /]# vgcreate cinder-volumes /dev/sdb Volume group "cinder-volumes" successfully created
配置lvm.conf：
[root@controller /]# vim /etc/lvm/lvm.conf #设置过滤器，a：接受。r：拒绝 #下面的filter，只需要选择一个进行配置即可。 #存储节点使用LVM （本教程使用这个） filter = [ "a/sda/", "a/sdb/", "r/.*/"] #计算节点使用LVM filter = [ "a/sda/", "r/.*/"]
安装cinder组件：
[root@controller /]# yum install openstack-cinder targetcli python-keystone
配置cinder.conf：
[root@controller /]# vim /etc/cinder/cinder.conf [database] connection = mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder [DEFAULT] transport_url = rabbit://openstack:RABBIT_PASS@controller auth_strategy = keystone [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:5000 memcached_servers = controller:11211 auth_type = password project_domain_id = default user_domain_id = default project_name = service username = cinder password = CINDER_PASS [DEFAULT] #配置为本机的网卡IP my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS [lvm] volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver volume_group = cinder-volumes iscsi_protocol = iscsi iscsi_helper = lioadm [DEFAULT] enabled_backends = lvm glance_api_servers = http://controller:9292 [oslo_concurrency] lock_path = /var/lib/cinder/tmp
配置环境：
[root@controller /]# systemctl enable openstack-cinder-volume.service target.service [root@controller /]# systemctl start openstack-cinder-volume.service target.service
4.7.2、安装、配置控制节点
在控制器节点上安装和配置块存储服务。
创建数据库：
#进入数据库 [root@controller /]# mysql -u root -p #创建cinder数据库 MariaDB [(none)]> CREATE DATABASE cinder; #数据库授权 MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'localhost' \ IDENTIFIED BY 'CINDER_DBPASS'; MariaDB [(none)]> GRANT ALL PRIVILEGES ON cinder.* TO 'cinder'@'%' \ IDENTIFIED BY 'CINDER_DBPASS';
创建服务凭证：
#获取管理员的CLI命令
[root@controller /]# . admin-openrc
#创建cinde用户
[root@controller /]#openstack user create --domain default --password-prompt cinder
#此处使用默认密码：CINDER_PASS
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 9d7e33de3e1a498390353819bc7d245d |
| name | cinder |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
#为cinder用户添角色信息
[root@controller /]# openstack role add --project service --user cinder admin
#创建cinder服务实例
#cinderv2
[root@controller /]# openstack service create --name cinderv2 \
--description "OpenStack Block Storage" volumev2
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Block Storage |
| enabled | True |
| id | eb9fd245bdbc414695952e93f29fe3ac |
| name | cinderv2 |
| type | volumev2 |
+-------------+----------------------------------+
#cinderv3
[root@controller /]# openstack service create --name cinderv3 \
--description "OpenStack Block Storage" volumev3
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Block Storage |
| enabled | True |
| id | ab3bbbef780845a1a283490d281e7fda |
| name | cinderv3 |
| type | volumev3 |
+-------------+----------------------------------+创建块存储服务API端点。
创建v2版本的端点：
[root@controller /]# openstack endpoint create --region RegionOne \ volumev2 public http://controller:8776/v2/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | 513e73819e14460fb904163f41ef3759 | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | eb9fd245bdbc414695952e93f29fe3ac | | service_name | cinderv2 | | service_type | volumev2 | | url | http://controller:8776/v2/%(project_id)s | +--------------+------------------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ volumev2 internal http://controller:8776/v2/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | 6436a8a23d014cfdb69c586eff146a32 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | eb9fd245bdbc414695952e93f29fe3ac | | service_name | cinderv2 | | service_type | volumev2 | | url | http://controller:8776/v2/%(project_id)s | +--------------+------------------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ volumev2 admin http://controller:8776/v2/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | e652cf84dd334f359ae9b045a2c91d96 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | eb9fd245bdbc414695952e93f29fe3ac | | service_name | cinderv2 | | service_type | volumev2 | | url | http://controller:8776/v2/%(project_id)s | +--------------+------------------------------------------+
创建v3版本的端点：
[root@controller /]# openstack endpoint create --region RegionOne \ volumev3 public http://controller:8776/v3/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | 03fa2c90153546c295bf30ca86b1344b | | interface | public | | region | RegionOne | | region_id | RegionOne | | service_id | ab3bbbef780845a1a283490d281e7fda | | service_name | cinderv3 | | service_type | volumev3 | | url | http://controller:8776/v3/%(project_id)s | +--------------+------------------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ volumev3 internal http://controller:8776/v3/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | 94f684395d1b41068c70e4ecb11364b2 | | interface | internal | | region | RegionOne | | region_id | RegionOne | | service_id | ab3bbbef780845a1a283490d281e7fda | | service_name | cinderv3 | | service_type | volumev3 | | url | http://controller:8776/v3/%(project_id)s | +--------------+------------------------------------------+ [root@controller /]# openstack endpoint create --region RegionOne \ volumev3 admin http://controller:8776/v3/%\(project_id\)s +--------------+------------------------------------------+ | Field | Value | +--------------+------------------------------------------+ | enabled | True | | id | 4511c28a0f9840c78bacb25f10f62c98 | | interface | admin | | region | RegionOne | | region_id | RegionOne | | service_id | ab3bbbef780845a1a283490d281e7fda | | service_name | cinderv3 | | service_type | volumev3 | | url | http://controller:8776/v3/%(project_id)s | +--------------+------------------------------------------+
安装cinder组件：
[root@controller /]# yum install openstack-cinder
配置cinder.conf：
[root@controller /]# vim /etc/cinder/cinder.conf [database] connection = mysql+pymysql://cinder:CINDER_DBPASS@controller/cinder [DEFAULT] transport_url = rabbit://openstack:RABBIT_PASS@controller auth_strategy = keystone my_ip = 10.0.0.11 [keystone_authtoken] auth_uri = http://controller:5000 auth_url = http://controller:5000 memcached_servers = controller:11211 auth_type = password project_domain_id = default user_domain_id = default project_name = service username = cinder password = CINDER_PASS [oslo_concurrency] lock_path = /var/lib/cinder/tmp
填充数据库：
[root@controller /]# su -s /bin/sh -c "cinder-manage db sync" cinder
配置Nova使用块存储：
[root@controller /]# vim /etc/nova/nova.conf
配置环境：
[root@controller /]# systemctl restart openstack-nova-api.service [root@controller /]# systemctl enable openstack-cinder-api.service openstack-cinder-scheduler.service [root@controller /]# systemctl start openstack-cinder-api.service openstack-cinder-scheduler.service
4.7.3、（可选）安装、配置备份服务
本教程没有安装swift组件，因此可省略此步骤。
安装cinder：
[root@controller /]# yum install openstack-cinder
配置cinder.conf：
[root@controller /]# /etc/cinder/cinder.conf [DEFAULT] backup_driver = cinder.backup.drivers.swift #替换SWIFT_URL为；为对象存储服务的 URL #可通过命令查看具体的替换数值：openstack catalog show object-store backup_swift_url = SWIFT_URL
配置环境：
[root@controller /]# systemctl enable openstack-cinder-backup.service [root@controller /]# systemctl start openstack-cinder-backup.service
4.7.4、验证是否成功安装
[root@controller /]# . admin-openrc [root@controller /]# openstack volume service list #此处未安装swift组件，因此只有存储节点、控制节点 +------------------+------------+------+---------+-------+----------------------------+ | Binary | Host | Zone | Status | State | Updated_at | +------------------+------------+------+---------+-------+----------------------------+ | cinder-scheduler | controller | nova | enabled | up | 2016-09-30T02:27:41.000000 | | cinder-volume | block@lvm | nova | enabled | up | 2016-09-30T02:27:46.000000 | +------------------+------------+------+---------+-------+----------------------------+
1、安装keystone后，执行命令：openstack domain create --description “An Example Domain” example。
出现错误：
Failed to discover available identity versions when contacting http://controller:5000/v3. Attempting to parse version from URL.
Unable to establish connection to http://controller:5000/v3/auth/tokens: HTTPConnectionPool(host='controller', port=5000): Max retries exceeded with url: /v3/auth/tokens (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7fa20bba02b0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution',))解决方式：
关闭SELinux，然后使用命令setnforce 0（或者重启系统）。
2、配置网卡时，需要注意的事项
配置网络时，需要先使用dhcp，获取虚拟机网卡ip，然后再使用static的方式，配置网卡ip。如果直接使用dhcp的方式，可能会导致该ip无法使用，无法ping通。
3.安装OpenStack各个组件时，使用命令：yum install xxxx -y。
出现错误：
Error downloading packages: python-dogpile-cache-0.6.2-1.el7.noarch: [Errno 256] No more mirrors to try. python-keyring-5.7.1-1.el7.noarch: [Errno 256] No more mirrors to try. python-dogpile-core-0.4.1-2.el7.noarch: [Errno 256] No more mirrors to try. python-cmd2-0.6.8-8.el7.noarch: [Errno 256] No more mirrors to try.
解决方式：
（1）方式1：再次执行安装命令 yum install python-openstackclient -y。
（2）方式2：yum update =》yum install python-openstackclient -y若还是出现错误：Error downloading packages: lttng-ust-2.10.0-1.el7.x86_64: [Errno 256] No more mirrors to try。
使用yum clean cache、yum makecache，然后再次进行yum update。
4、horizon登录注意事项
地址：http://controller/dashboard。
不行的话，换成:http://controller对用的IP地址/dashboard。
登录填写的资料：
domain：default；
username：admin；
password：ADMIN_PASS。
5、禁用SELinux
**否则会出现错误：**the request you have made requiresauthentication(HTTPConnection 401)。
解决方式：
[root@controller /]# vim /etc/selinux/config SELINUX=disabled SELINUXTYPE=targeted
然后setnforce 0（或者重启系统）。
6、VMWare挂载磁盘的注意事项
查看挂载：
[root@controller /]# fdisk -l
若新增的磁盘未挂载上，处理方式：
#1、查看当前有的磁盘文件： [root@controller /]# cd /sys/class/scsi_host/ #2、获取当前目录下的所有文件名 [root@controller /]# ls host0 host1 host2 #3、逐个执行上面文件中出现的文件 [root@controller /]# echo "- - -" > /sys/class/scsi_host/host0/scan [root@controller /]# echo "- - -" > /sys/class/scsi_host/host1/scan [root@controller /]# echo "- - -" > /sys/class/scsi_host/host2/scan
7、重启虚拟机后，无法使用openstack命令。
原因：
因为使用export设置环境变量，因此该环境变量只限定于当前执行命令的终端使用。系统关机、开启新的终端均无法使用这个环境变量。
解决方式：需要运行源文件命令，添加环境变量。
[root@controller /]# . admin-openrc
#admin-openrc文件中的内容 [root@controller /]# vim admin-openrc export OS_PROJECT_DOMAIN_NAME=Default export OS_USER_DOMAIN_NAME=Default export OS_PROJECT_NAME=admin export OS_USERNAME=admin export OS_PASSWORD=ADMIN_PASS export OS_AUTH_URL=http://controller:5000/v3 export OS_IDENTITY_API_VERSION=3 export OS_IMAGE_API_VERSION=2
8、执行openstack volume service list，cinder-volume运行失败。
原因：若存储节点在操作系统磁盘上使用LVM，则需要将关联的设备添加到过滤器中。
解决方式：配置存储节点时，需要挂载相应的卷。
#修改配置文件：/etc/lvm/lvm.conf
[root@controller /]# vim /etc/lvm/lvm.conf
devices {
...
filter = [ "a/sda/", "a/sdb/", "r/.*/"]
}9、Nova无法启动
原因：防火墙阻止访问5672端口。
解决方式：
#查看nova-comput日志：发现端口未启用 cat /var/log/nova/nova-compute.log #关闭防火墙 systemctl stop firewalld systemctl disable firewalld #重启nova服务 systemctl start libvirtd.service openstack-nova-compute.service
(已完结)
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