超详细Openstack核心组件——nova部署
目录
- OpenStack-nova组件部署
- nova组件部署位置
- 计算节点Nova服务配置(CT配置)
- 计算节点配置Nova服务-c1节点配置
- 计算节点-c2（与c1相同）（除了IP地址）
- controller节点操作
- 总结
OpenStack-nova组件部署
继之前Placement部署之后，继续部署nova
nova组件部署位置
控制节点ct
nova-api（nova主服务）
nova-scheduler（nova调度服务）
nova-conductor（nova数据库服务，提供数据库访问）
nova-novncproxy（nova的vnc服务，提供实例的控制台）计算节点c1、c2
nova-compute（nova计算服务）
计算节点Nova服务配置(CT配置)
1. 创建nova数据库，并执行授权操作
[root@ct ~]# mysql -uroot -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 55
Server version: 10.3.20-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> CREATE DATABASE nova_api;
Query OK, 1 row affected (0.001 sec)
MariaDB [(none)]> CREATE DATABASE nova;
Query OK, 1 row affected (0.000 sec)
MariaDB [(none)]> CREATE DATABASE nova_cell0;
Query OK, 1 row affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.000 sec)
MariaDB [(none)]> exit
Bye
2. 管理Nova用户及服务
- 创建nova用户
[root@ct ~]# openstack user create --domain default --password NOVA_PASS nova
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | 93e904c4063545de83350cd21b7c6b44 |
| name | nova |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
//把nova用户添加到service项目，拥有admin权限
[root@ct ~]# openstack role add --project service --user nova admin
- 创建nova服务
[root@ct ~]# openstack service create --name nova --description "OpenStack Compute" compute
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | OpenStack Compute |
| enabled | True |
| id | 721156ee0ff54b468f8e9ff1b65af18c |
| name | nova |
| type | compute |
+-------------+----------------------------------+
- 给Nova服务关联endpoint（端点）
[root@ct ~]# openstack endpoint create --region RegionOne compute public http://ct:8774/v2.1
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | cb13f505671a453ab7c1be84e8774bfc |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 721156ee0ff54b468f8e9ff1b65af18c |
| service_name | nova |
| service_type | compute |
| url | http://ct:8774/v2.1 |
+--------------+----------------------------------+
[root@ct ~]# openstack endpoint create --region RegionOne compute internal http://ct:8774/v2.1
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | f769cea83d5343a787203bb5da4de4b0 |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 721156ee0ff54b468f8e9ff1b65af18c |
| service_name | nova |
| service_type | compute |
| url | http://ct:8774/v2.1 |
+--------------+----------------------------------+
[root@ct ~]# openstack endpoint create --region RegionOne compute admin http://ct:8774/v2.1
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | d9bfe772d4ab4a6c9cd3fb2b3a93533d |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 721156ee0ff54b468f8e9ff1b65af18c |
| service_name | nova |
| service_type | compute |
| url | http://ct:8774/v2.1 |
+--------------+----------------------------------+
- 安装nova组件（nova-api、nova-conductor、nova-novncproxy、nova-scheduler）
[root@ct ~]# yum -y install openstack-nova-api openstack-nova-conductor openstack-nova-novncproxy openstack-nova-scheduler
3. 修改nova配置文件(nova.conf)
- 拷贝备份配置文件
[root@ct ~]# cp -a /etc/nova/nova.conf{,.bak}
[root@ct ~]# grep -Ev '^$|#' /etc/nova/nova.conf.bak > /etc/nova/nova.conf
- 修改nova.conf
[root@ct ~]# openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis osapi_compute,metadata
[root@ct ~]# openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.100.10
[root@ct ~]# openstack-config --set /etc/nova/nova.conf DEFAULT use_neutron true
[root@ct ~]# openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
[root@ct ~]# openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@ct
[root@ct ~]# openstack-config --set /etc/nova/nova.conf api_database connection mysql+pymysql://nova:NOVA_DBPASS@ct/nova_api
[root@ct ~]# openstack-config --set /etc/nova/nova.conf database connection mysql+pymysql://nova:NOVA_DBPASS@ct/nova
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement_database connection mysql+pymysql://placement:PLACEMENT_DBPASS@ct/placement
[root@ct ~]# openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://ct:5000/v3
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers ct:11211
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_type password
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken project_domain_name Default
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken user_domain_name Default
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken project_name service
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken username nova
[root@ct ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken password NOVA_PASS
[root@ct ~]# openstack-config --set /etc/nova/nova.conf vnc enabled true
[root@ct ~]# openstack-config --set /etc/nova/nova.conf vnc server_listen ' $my_ip'
[root@ct ~]# openstack-config --set /etc/nova/nova.conf vnc server_proxyclient_address ' $my_ip'
[root@ct ~]# openstack-config --set /etc/nova/nova.conf glance api_servers http://ct:9292
[root@ct ~]# openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement region_name RegionOne
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement project_domain_name Default
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement project_name service
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement auth_type password
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement user_domain_name Default
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement auth_url http://ct:5000/v3
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement username placement
[root@ct ~]# openstack-config --set /etc/nova/nova.conf placement password PLACEMENT_PASS
- 查看nova.conf
[root@ct ~]# cat /etc/nova/nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata //指定支持的api类型
my_ip = 192.168.100.10 //定义本地IP
use_neutron = true //通过neutron获取IP地址
firewall_driver = nova.virt.firewall.NoopFirewallDriver
transport_url = rabbit://openstack:RABBIT_PASS@ct #指定连接的rabbitmq
[api]
auth_strategy = keystone //指定使用keystone认证
[api_database]
connection = mysql+pymysql://nova:NOVA_DBPASS@ct/nova_api
[barbican]
[cache]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[database]
connection = mysql+pymysql://nova:NOVA_DBPASS@ct/nova
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://ct:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken] //配置keystone的认证信息
auth_url = http://ct:5000/v3 //到此url去认证
memcached_servers = ct:11211 //memcache数据库地址:端口
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_PASS
[libvirt]
[metrics]
[mks]
[neutron]
[notifications]
[osapi_v21]
[oslo_concurrency] //指定锁路径
lock_path = /var/lib/nova/tmp //锁的作用是创建虚拟机时，在执行某个操作的时候，需要等此步骤执行完后才能执行下一个步骤，不能并行执行，保证操作是一步一步的执行
[oslo_messaging_amqp]
[oslo_messaging_kafka]
[oslo_messaging_notifications]
[oslo_messaging_rabbit]
[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://ct:5000/v3
username = placement
password = PLACEMENT_PASS
[powervm]
[privsep]
[profiler]
[quota]
[rdp]
[remote_debug]
[scheduler]
[serial_console]
[service_user]
[spice]
[upgrade_levels]
[vault]
[vendordata_dynamic_auth]
[vmware]
[vnc] //此处如果配置不正确，则连接不上虚拟机的控制台
enabled = true
server_listen = $my_ip //指定vnc的监听地址
server_proxyclient_address = $my_ip //server的客户端地址为本机地址；此地址是管理网的地址
[workarounds]
[wsgi]
[xenserver]
[xvp]
[zvm]
[placement_database]
connection = mysql+pymysql://placement:PLACEMENT_DBPASS@ct/placement
4. 初始化数据库
- 初始化nova_api数据库
[root@ct ~]# su -s /bin/sh -c "nova-manage api_db sync" nova
5. 注册cell0数据库；nova服务内部把资源划分到不同的cell中，把计算节点划分到不同的cell中；openstack内部基于cell把计算节点进行逻辑上的分组
[root@ct ~]# su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
- 创建cell1单元格
[root@ct ~]# su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
bffae239-c193-421d-80a1-b894767a098c
- 初始化nova数据库；可以通过 /var/log/nova/nova-manage.log 日志判断是否初始化成功
[root@ct ~]# su -s /bin/sh -c "nova-manage db sync" nova
/usr/lib/python2.7/site-packages/pymysql/cursors.py:170: Warning: (1831, u'Duplicate index `block_device_mapping_instance_uuid_virtual_name_device_name_idx`. This is deprecated and will be disallowed in a future release')
result = self._query(query)
/usr/lib/python2.7/site-packages/pymysql/cursors.py:170: Warning: (1831, u'Duplicate index `uniq_instances0uuid`. This is deprecated and will be disallowed in a future release')
result = self._query(query)
- 可使用以下命令验证cell0和cell1是否注册成功
[root@ct ~]# su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova //验证cell0和cell1组件是否注册成功
+-------+--------------------------------------+----------------------------+-----------------------------------------+----------+
| 名称 | UUID | Transport URL | 数据库连接 | Disabled |
+-------+--------------------------------------+----------------------------+-----------------------------------------+----------+
| cell0 | 00000000-0000-0000-0000-000000000000 | none:/ | mysql+pymysql://nova:****@ct/nova_cell0 | False |
| cell1 | bffae239-c193-421d-80a1-b894767a098c | rabbit://openstack:****@ct | mysql+pymysql://nova:****@ct/nova | False |
+-------+--------------------------------------+----------------------------+-----------------------------------------+----------+
- 启动Nova服务
[root@ct ~]# systemctl enable openstack-nova-api.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-api.service to /usr/lib/systemd/system/openstack-nova-api.service.
[root@ct ~]# systemctl enable openstack-nova-scheduler.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-scheduler.service to /usr/lib/systemd/system/openstack-nova-scheduler.service.
[root@ct ~]# systemctl enable openstack-nova-conductor.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-conductor.service to /usr/lib/systemd/system/openstack-nova-conductor.service.
[root@ct ~]# systemctl enable openstack-nova-novncproxy.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-novncproxy.service to /usr/lib/systemd/system/openstack-nova-novncproxy.service.
[root@ct ~]# systemctl start openstack-nova-api.service
[root@ct ~]# systemctl start openstack-nova-scheduler.service
[root@ct ~]# systemctl start openstack-nova-conductor.service
[root@ct ~]# systemctl start openstack-nova-novncproxy.service
6. 检查nova服务端口
[root@ct ~]# netstat -tnlup|egrep '8774|8775'
tcp 0 0 0.0.0.0:8775 0.0.0.0:* LISTEN 89211/python2
tcp 0 0 0.0.0.0:8774 0.0.0.0:* LISTEN 89211/python2
[root@ct ~]# curl http://ct:8774
{"versions": [{"status": "SUPPORTED", "updated": "2011-01-21T11:33:21Z", "links": [{"href": "http://ct:8774/v2/", "rel": "self"}], "min_version": "", "version": "", "id": "v2.0"}, {"status": "CURRENT", "updated": "2013-07-23T11:33:21Z", "links": [{"href": "http://ct:8774/v2.1/", "rel": "self"}], "min_version": "2.1", "version": "2.79", "id": "v2.1"}]}[root@ct ~]#
计算节点配置Nova服务-c1节点配置
1. 安装nova-compute组件
[root@c1 ~]# yum -y install openstack-nova-compute
- 修改配置文件
[root@c1 ~]# cp -a /etc/nova/nova.conf{,.bak}
[root@c1 ~]# grep -Ev '^$|#' /etc/nova/nova.conf.bak > /etc/nova/nova.conf
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis osapi_compute,metadata
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@ct
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.100.11
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf DEFAULT use_neutron true
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://ct:5000/v3
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers ct:11211
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_type password
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken project_domain_name Default
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken user_domain_name Default
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken project_name service
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken username nova
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf keystone_authtoken password NOVA_PASS
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf vnc enabled true
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf vnc server_listen 0.0.0.0
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf vnc server_proxyclient_address ' $my_ip'
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf vnc novncproxy_base_url http://192.168.100.11:6080/vnc_auto.html
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf glance api_servers http://ct:9292
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement region_name RegionOne
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement project_domain_name Default
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement project_name service
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement auth_type password
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement user_domain_name Default
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement auth_url http://ct:5000/v3
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement username placement
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf placement password PLACEMENT_PASS
[root@c1 ~]# openstack-config --set /etc/nova/nova.conf libvirt virt_type qemu
- 查看配置文件
[root@c1 ~]# cd /etc/nova/
[root@c1 nova]# cat nova.conf
[DEFAULT]
enabled_apis = osapi_compute,metadata
transport_url = rabbit://openstack:RABBIT_PASS@ct
my_ip = 192.168.100.11
use_neutron = true
firewall_driver = nova.virt.firewall.NoopFirewallDriver
[api]
auth_strategy = keystone
[api_database]
[barbican]
[cache]
[cinder]
[compute]
[conductor]
[console]
[consoleauth]
[cors]
[database]
[devices]
[ephemeral_storage_encryption]
[filter_scheduler]
[glance]
api_servers = http://ct:9292
[guestfs]
[healthcheck]
[hyperv]
[ironic]
[key_manager]
[keystone]
[keystone_authtoken]
auth_url = http://ct:5000/v3
memcached_servers = ct:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_PASS
[libvirt]
virt_type = qemu
[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_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://ct:5000/v3
username = placement
password = PLACEMENT_PASS
[powervm]
[privsep]
[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 = $my_ip
novncproxy_base_url = http://192.168.100.11:6080/vnc_auto.html
[workarounds]
[wsgi]
[xenserver]
[xvp]
[zvm]
- 开启服务
[root@c2 ~]# systemctl enable libvirtd.service openstack-nova-compute.service
Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-compute.service to /usr/lib/systemd/system/openstack-nova-compute.service.
[root@c2 ~]# systemctl start libvirtd.service openstack-nova-compute.service
计算节点-c2（与c1相同）（除了IP地址）
controller节点操作
1. 查看compute节点是否注册到controller上，通过消息队列；需要在controller节点执行
[root@ct ~]# openstack compute service list --service nova-compute
+----+--------------+------+------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+--------------+------+------+---------+-------+----------------------------+
| 9 | nova-compute | c1 | nova | enabled | up | 2021-02-18T14:11:26.000000 |
| 10 | nova-compute | c2 | nova | enabled | up | 2021-02-18T14:11:23.000000 |
+----+--------------+------+------+---------+-------+----------------------------+
2. 扫描当前openstack中有哪些计算节点可用，发现后会把计算节点创建到cell中，后面就可以在cell中创建虚拟机；相当于openstack内部对计算节点进行分组，把计算节点分配到不同的cell中
[root@ct ~]# su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova
Found 2 cell mappings.
Skipping cell0 since it does not contain hosts.
Getting computes from cell 'cell1': bffae239-c193-421d-80a1-b894767a098c
Checking host mapping for compute host 'c1': 93382dce-69da-46a7-95a8-0e4331db8da1
Creating host mapping for compute host 'c1': 93382dce-69da-46a7-95a8-0e4331db8da1
Checking host mapping for compute host 'c2': d5c3816b-467a-4ecf-a36e-ffbc917521d4
Creating host mapping for compute host 'c2': d5c3816b-467a-4ecf-a36e-ffbc917521d4
Found 2 unmapped computes in cell: bffae239-c193-421d-80a1-b894767a098c
3. 默认每次添加个计算节点，在控制端就需要执行一次扫描，这样会很麻烦，所以可以修改控制端nova的主配置文件
[root@ct ~]# vim /etc/nova/nova.conf
[scheduler]
discover_hosts_in_cells_interval = 300 //每300秒扫描一次
4. 验证计算节点服务
- 检查 nova 的各个服务是否都是正常，以及 compute 服务是否注册成功
[root@ct ~]# openstack compute service list
+----+----------------+------+----------+---------+-------+----------------------------+
| ID | Binary | Host | Zone | Status | State | Updated At |
+----+----------------+------+----------+---------+-------+----------------------------+
| 4 | nova-scheduler | ct | internal | enabled | up | 2021-02-18T14:15:29.000000 |
| 8 | nova-conductor | ct | internal | enabled | up | 2021-02-18T14:15:20.000000 |
| 9 | nova-compute | c1 | nova | enabled | up | 2021-02-18T14:15:26.000000 |
| 10 | nova-compute | c2 | nova | enabled | up | 2021-02-18T14:15:23.000000 |
+----+----------------+------+----------+---------+-------+----------------------------+
- 查看各个组件的 api 是否正常
[root@ct ~]# openstack catalog list
+-----------+-----------+---------------------------------+
| Name | Type | Endpoints |
+-----------+-----------+---------------------------------+
| nova | compute | RegionOne |
| | | public: http://ct:8774/v2.1 |
| | | RegionOne |
| | | admin: http://ct:8774/v2.1 |
| | | RegionOne |
| | | internal: http://ct:8774/v2.1 |
| | | |
| keystone | identity | RegionOne |
| | | internal: http://ct:5000/v3/ |
| | | RegionOne |
| | | public: http://ct:5000/v3/ |
| | | RegionOne |
| | | admin: http://ct:5000/v3/ |
| | | |
| glance | image | RegionOne |
| | | admin: http://ct:9292 |
| | | RegionOne |
| | | public: http://ct:9292 |
| | | RegionOne |
| | | internal: http://ct:9292 |
| | | |
| placement | placement | RegionOne |
| | | admin: http://ct:8778 |
| | | RegionOne |
| | | public: http://ct:8778 |
| | | RegionOne |
| | | internal: http://ct:8778 |
| | | |
+-----------+-----------+---------------------------------+
- 查看是否能够拿到镜像
[root@ct ~]# openstack image list
+--------------------------------------+--------+--------+
| ID | Name | Status |
+--------------------------------------+--------+--------+
| a4ff4b8f-4c46-4bc3-9c0c-2de82b257447 | cirros | active |
+--------------------------------------+--------+--------+
- 查看cell的api和placement的api是否正常，只要其中一个有误，后期无法创建虚拟机
[root@ct ~]# nova-status upgrade check
+--------------------------------+
| Upgrade Check Results |
+--------------------------------+
| Check: Cells v2 |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Placement API |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Ironic Flavor Migration |
| Result: Success |
| Details: None |
+--------------------------------+
| Check: Cinder API |
| Result: Success |
| Details: None |
+--------------------------------+
至此，nova配置完成
总结
- Nova分为控制节点、计算节点
- Nova组件核心功能是调度资源，在配置文件中需要体现的部分：指向认证节点位置(URL、ENDPOINT)、调用服务、注册、提供支持等，配置文件中的所有配置参数基本都是围绕此范围(对实例生命周期管理）进行设置
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