openstack install --nova

Create Nova database by operating on controller node

mysql -u root -pzouhuiying
CREATE DATABASE nova;
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';
flush privileges

Add environment variables (temporarily added environment variables, only valid in the current window)

source admin-openrc.sh

Create Nova User

openstack user create --domain default --password-prompt nova

Add the admin role to the nova user:

openstack role add --project service --user nova admin

Create the nova service entity:

openstack service create --name nova --description "OpenStack Compute" compute

Create the Compute service API endpoints:

openstack endpoint create --region RegionOne compute public http://controller:8774/v2/%\(tenant_id\)s
openstack endpoint create --region RegionOne compute internal http://controller:8774/v2/%\(tenant_id\)s
openstack endpoint create --region RegionOne compute admin http://controller:8774/v2/%\(tenant_id\)s

Install related packages

yum install openstack-nova-api openstack-nova-cert openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler python-novaclient

vim /etc/nova/nova.conf

[database]
...
connection = mysql://nova:NOVA_DBPASS@controller/nova
Configuration of message queues
[DEFAULT]
...
rpc_backend = rabbit

[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS //Change to your own password
//authentication configuration
[DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = NOVA_PASS

[DEFAULT]
...
my_ip = 10.0.0.11

//make it support neutron service
[DEFAULT]
...
network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.NeutronLinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

//vnc configuration
[vnc]
...
vncserver_listen = $my_ip
vncserver_proxyclient_address = $my_ip
[glance]
...
host = controller
[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

//disable the EC2 API:
[DEFAULT]
...
enabled_apis=osapi_compute,metadata

Sync Nova database

su -s /bin/sh -c "nova-manage db sync" nova

Set up automatic startup/start service at boot

systemctl enable openstack-nova-api.service openstack-nova-cert.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl start openstack-nova-api.service openstack-nova-cert.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

The following is to
install

yum install openstack-nova-compute sysfsutils

vim /etc/nova/nova.conf

[DEFAULT]
...
rpc_backend = rabbit

[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS

[DEFAULT]
...
auth_strategy = keystone

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
auth_plugin = password
project_domain_id = default
user_domain_id = default
project_name = service
username = nova
password = NOVA_PASS

[DEFAULT]
...
my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS

[DEFAULT]
...
network_api_class = nova.network.neutronv2.api.API
security_group_api = neutron
linuxnet_interface_driver = nova.network.linux_net.NeutronLinuxBridgeInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[vnc]
...
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html

[glance]
...
host = controller

[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

Determine whether this virtual machine supports kvm, 0: not supported, >=1 supported

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

vim /etc/nova/nova.conf

[libvirt]
...
virt_type = qemu //If kvm is not supported, use qemu

start the service

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

The error encountered:
AMQP server on controller: 5672 is unreachable
Solution: Check that the port 5672 of the controller node is not up, 5672 is the port of rabbitmq. The reason for the check is that the controller node forgot to install rabbitmq, because Nova needs to use the service
AMQP server on controller: 5672 is unreachable
. Although the service is enabled, it has no permission to access. The
solution is to grant permissions.

rabbitmqctl add_user openstack zouhuiying
rabbitmqctl set_permissions openstack ".*" ".*" ".*"