OpenStack stein安裝（六）nova on compute

時間  2019-11-06
標籤 openstack stein 安裝 nova compute 简体版
原文   原文鏈接

Install and configure components

  1. Install the packages: 
    # yum install openstack-nova-compute

  2. Edit the /etc/nova/nova.conf file and complete the following actions:html

    ○ In the [DEFAULT] section, enable only the compute and metadata APIs:
    [DEFAULT]
    # ...
    enabled_apis = osapi_compute,metadata

○ In the [DEFAULT] section, configure RabbitMQ message queue access:
    [DEFAULT]
    # …
    transport_url=rabbit://openstack:openstack123@dbs.flex.net

○ In the [api] and [keystone_authtoken] sections, configure Identity service access::
    [api]
    # ...
    auth_strategy = keystone

    [keystone_authtoken]
    # ...
    auth_url = http://stack.flex.net:5000/v3
    memcached_servers = dbs.flex.net:11211
    auth_type = password
    project_domain_name = Default
    user_domain_name = Default
    project_name = service
    username = nova
    password = nova123
    注意: 註釋或移除在掉在[keystone_authtoken]區域中的其它的選項

○ In the [DEFAULT] section, configure the my_ip option:
    [DEFAULT]
    # ...
    my_ip = 192.168.205.187
注意：使用管理接口的IP在你的計算節點上.

○ In the [DEFAULT] section, enable support for the Networking service:
    [DEFAULT]
    # ...
    use_neutron = true
    firewall_driver = nova.virt.firewall.NoopFirewallDriver
注意：缺省的，計算節點使用一內部的防火牆驅動，由於網絡服務包含了一個防火牆驅動，你必須禁用防火牆驅動並使用nova.virt.firewall.NoopFirewallDriver firewall driver

○ In the [vnc] section, enable and configure remote console access:
    [vnc]
    # ...
    enabled = true
    server_listen = 0.0.0.0
    server_proxyclient_address = $my_ip
    novncproxy_base_url = http://stack.flex.net:6080/vnc_auto.html

    服務器組件監聽全部IP地址，代理組件只監聽計算節點的管理接口IP地址。基本URL指示能夠使用web瀏覽器訪問此計算節點上實例的遠程控制檯的位置。
注意：若是要訪問遠程控制檯的web瀏覽器駐留在沒法解析控制器主機名的主機上，則必須使用控制器節點的管理接口IP地址替換控制器。

○ In the [glance] section, configure the location of the Image service API:
    [glance]
    # ...
    api_servers = http://stack.flex.net:9292

○ In the [oslo_concurrency] section, configure the lock path:
    [oslo_concurrency]
    # ...
    lock_path = /var/lib/nova/tmp

○ In the [placement] section, configure the Placement API:
    [placement]
    # ...
    region_name = RegionOne
    project_domain_name = Default
    project_name = service
    auth_type = password
    user_domain_name = Default
    auth_url = http://stack.flex.net:5000/v3
    username = placement
    password = placement123

    Finalize installation

  3. Determine whether your compute node supports hardware acceleration for virtual machines:node

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

若是這個命令返回1或大於1的值，你的計算節點支持硬件加速，一般不須要額外的配置，一般若是你的計算節點使用的是Vmware Workstation虛擬機，你能夠充許virtuallze Intel VT-x/EPT or AMD-V/RVI這樣打開虛擬化設置

若是這個命令返回一個0值，你的計算節點不支持硬件加速，而且你必須配置libvirt使用QEMU取代KVM, 編輯文件/etc/nova/nova.conf文件以下：
[libvirt]
# ...
virt_type = qemu

  4. Start the Compute service including its dependencies and configure them to start automatically when the system boots:web

    # systemctl enable libvirtd.service openstack-nova-compute.service
# systemctl start libvirtd.service openstack-nova-compute.service

注意:若是nova-compute服務沒法啓動，請檢查/var/log/nova/nova- computer .log。controller:5672上的錯誤消息AMQP服務器不可訪問，這可能代表控制器節點上的防火牆正在阻止對端口5672的訪問。將防火牆配置爲打開控制器節點上的端口5672並在計算節點上從新啓動nova-compute服務。

    Add the compute node to the cell database

  5. Source the admin credentials to enable admin-only CLI commands, then confirm there are compute hosts in the database:api

    $ . admin-openrc

$ openstack compute service list --service nova-compute
+----+-------+--------------+------+-------+---------+----------------------------+
| ID | Host  | Binary       | Zone | State | Status  | Updated At                 |
+----+-------+--------------+------+-------+---------+----------------------------+
| 1  | node1 | nova-compute | nova | up    | enabled | 2017-04-14T15:30:44.000000 |
+----+-------+--------------+------+-------+---------+----------------------------+

  6. Discover compute hosts:瀏覽器

    # 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 compute nodes from cell 'cell1': ad5a5985-a719-4567-98d8-8d148aaae4bc
Found 1 computes in cell: ad5a5985-a719-4567-98d8-8d148aaae4bc
Checking host mapping for compute host 'compute': fe58ddc1-1d65-4f87-9456-bc040dc106b3
Creating host mapping for compute host 'compute': fe58ddc1-1d65-4f87-9456-bc040dc106b3
注意：當你添加新的計算節點，你必須運行nova-manage cell_v2 discover_hosts在控制器上註冊新的計算節點，替代方法爲你能夠在/etc/nova/nova.conf中設置一個適當的間間隔自動發現計算節點:
[scheduler]
discover_hosts_in_cells_interval = 300

    Verify operation

    Verify operation of the Compute service.
    Note: Perform these commands on the controller node.服務器

  7. Source the admin credentials to gain access to admin-only CLI commands: 
    $ . admin-openrc

  8. List service components to verify successful launch and registration of each process:網絡

    $ openstack compute service list

+----+--------------------+------------+----------+---------+-------+----------------------------+
| Id | Binary             | Host       | Zone     | Status  | State | Updated At                 |
+----+--------------------+------------+----------+---------+-------+----------------------------+
|  1 | nova-scheduler     | controller | internal | enabled | up    | 2016-02-09T23:11:15.000000 |
|  2 | nova-conductor     | controller | internal | enabled | up    | 2016-02-09T23:11:16.000000 |
|  3 | nova-compute       | compute1   | nova     | enabled | up    | 2016-02-09T23:11:20.000000 |
+----+--------------------+------------+----------+---------+-------+----------------------------+

Note: This output should indicate two service components enabled on the controller node and one service component enabled on the compute node.
  9. List API endpoints in the Identity service to verify connectivity with the Identity service: 
    $ openstack catalog list
+-----------+-----------+---------------------------------------------+
| Name      | Type      | Endpoints                                   |
+-----------+-----------+---------------------------------------------+
| placement | placement | RegionOne                                   |
|           |           |   admin: http://stack.flex.net:8778         |
|           |           | RegionOne                                   |
|           |           |   internal: http://stack.flex.net:8778      |
|           |           | RegionOne                                   |
|           |           |   public: http://stack.flex.net:8778        |
|           |           |                                             |
| glance    | image     | RegionOne                                   |
|           |           |   admin: http://stack.flex.net:9292         |
|           |           | RegionOne                                   |
|           |           |   public: http://stack.flex.net:9292        |
|           |           | RegionOne                                   |
|           |           |   internal: http://stack.flex.net:9292      |
|           |           |                                             |
| nova      | compute   | RegionOne                                   |
|           |           |   public: http://stack.flex.net:8774/v2.1   |
|           |           | RegionOne                                   |
|           |           |   internal: http://stack.flex.net:8774/v2.1 |
|           |           | RegionOne                                   |
|           |           |   admin: http://stack.flex.net:8774/v2.1    |
|           |           |                                             |
| keystone  | identity  | RegionOne                                   |
|           |           |   public: http://stack.flex.net:5000/v3/    |
|           |           | RegionOne                                   |
|           |           |   admin: http://stack.flex.net:5000/v3/     |
|           |           | RegionOne                                   |
|           |           |   internal: http://stack.flex.net:5000/v3/  |
|           |           |                                             |
+-----------+-----------+---------------------------------------------+

  10. List images in the Image service to verify connectivity with the Image service:app

    $ openstack image list

+--------------------------------------+-------------+-------------+
| ID                                   | Name        | Status      |
+--------------------------------------+-------------+-------------+
| 9a76d9f9-9620-4f2e-8c69-6c5691fae163 | cirros      | active      |
+--------------------------------------+-------------+-------------+

  11. Check the cells and placement API are working successfully and that other necessary prerequisites are in place:dom

    # 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: Request Spec Migration                                      |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
| Check: Console Auths                                               |
| Result: Success                                                    |
| Details: None                                                      |
+--------------------------------------------------------------------+
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