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OpenStack Zed : Configure Nova #3
2022/11/10
 
Install OpenStack Compute Service (Nova).
This example is based on the environment like follows.
If you'd like to install Nova Compute on another Node, refer to here.
        eth0|10.0.0.30 
+-----------+-----------+
|   [ dlp.srv.world ]   |
|     (Control Node)    |
|                       |
|  MariaDB    RabbitMQ  |
|  Memcached  Nginx     |
|  Keystone   httpd     |
|  Glance     Nova API  |
|  Nova Compute         |
+-----------------------+

[1]
Install KVM HyperVisor on Compute Node Host, refer to here.
It's unnecessarry to set Bridge networking on the section [2] of the link.
[2] Install Nova Compute.
# install from Zed, EPEL, CRB

[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-zed,epel,crb -y install openstack-nova-compute
[3] In addition to basic settings of Nova, add following settings.
[root@dlp ~(keystone)]#
vi /etc/nova/nova.conf
# add into the [DEFAULT] section
compute_driver = libvirt.LibvirtDriver

# add into the [vnc] section
# IP address compute instances listen
[vnc]
enabled = True
server_listen = 10.0.0.30
server_proxyclient_address = 10.0.0.30
novncproxy_host = 127.0.0.1
novncproxy_port = 6080
novncproxy_base_url = https://dlp.srv.world:6080/vnc_auto.html
[4] If SELinux is enabled, change policy.
[root@dlp ~(keystone)]#
dnf --enablerepo=centos-openstack-zed -y install openstack-selinux

[5] If Firewalld is running, allow ports for services.
[root@dlp ~(keystone)]#
firewall-cmd --add-port=5900-5999/tcp

success
[root@dlp ~(keystone)]#
firewall-cmd --runtime-to-permanent

success
[6] Start Nova Compute.
[root@dlp ~(keystone)]#
systemctl enable --now openstack-nova-compute
# discover Compute Node

[root@dlp ~(keystone)]#
su -s /bin/bash nova -c "nova-manage cell_v2 discover_hosts"
# show status

[root@dlp ~(keystone)]#
openstack compute service list

+--------------------------------------+----------------+---------------+----------+---------+-------+----------------------------+
| ID                                   | Binary         | Host          | Zone     | Status  | State | Updated At                 |
+--------------------------------------+----------------+---------------+----------+---------+-------+----------------------------+
| d5feb051-7c03-4f4d-bbf1-8c5302afd35f | nova-scheduler | dlp.srv.world | internal | enabled | up    | 2022-11-10T02:34:45.000000 |
| c9cf1db8-6205-4469-bc77-a6f827c4d38a | nova-conductor | dlp.srv.world | internal | enabled | up    | 2022-11-10T02:34:41.000000 |
| 17a2e455-e32c-4089-942e-379d00c6cd5d | nova-compute   | dlp.srv.world | nova     | enabled | up    | 2022-11-10T02:34:45.000000 |
+--------------------------------------+----------------+---------------+----------+---------+-------+----------------------------+
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