OpenStack Yoga : Add Compute Nodes2022/04/30 |
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Add Compute Nodes to run more instances.
This example is based on the environment like follows.
------------+-----------------------------+------------
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eth0|10.0.0.30 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Compute Node) |
| | | |
| MariaDB RabbitMQ | | Libvirt |
| Memcached httpd | | Nova Compute |
| Keystone Glance | | |
| Nova API | | |
+-----------------------+ +-----------------------+
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| [1] |
Install KVM Hypervisor on Compute Node, refer to here.
It's unnecessary to set Bridge networking on the section [2] of the link. |
| [2] | Install Nova-Compute. |
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root@node01:~# apt -y install nova-compute nova-compute-kvm qemu-system-data
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| [3] | Configure Nova. |
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root@node01:~# mv /etc/nova/nova.conf /etc/nova/nova.conf.org
root@node01:~#
vi /etc/nova/nova.conf # create new [DEFAULT] state_path = /var/lib/nova enabled_apis = osapi_compute,metadata log_dir = /var/log/nova # RabbitMQ connection info transport_url = rabbit://openstack:password@dlp.srv.world [api] auth_strategy = keystone [vnc] enabled = True # IP address compute instances listen # specify this node's IP server_listen = 10.0.0.51 server_proxyclient_address = 10.0.0.51 novncproxy_base_url = https://dlp.srv.world:6080/vnc_auto.html # Glance connection info [glance] api_servers = https://dlp.srv.world:9292 [oslo_concurrency] lock_path = $state_path/tmp # Keystone auth info [keystone_authtoken] www_authenticate_uri = https://dlp.srv.world:5000 auth_url = https://dlp.srv.world:5000 memcached_servers = dlp.srv.world:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova password = servicepassword # if using self-signed certs on Apache2 Keystone, turn to [true] insecure = false [placement] auth_url = https://dlp.srv.world:5000 os_region_name = RegionOne auth_type = password project_domain_name = default user_domain_name = default project_name = service username = placement password = servicepassword # if using self-signed certs on Apache2 Keystone, turn to [true] insecure = false [wsgi] api_paste_config = /etc/nova/api-paste.ini chmod 640 /etc/nova/nova.conf root@node01:~# chgrp nova /etc/nova/nova.conf root@node01:~# systemctl restart nova-compute
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| [4] | Confirm the status of Nova services on Control Node. If all State is [up], they are running normally. |
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# discover Compute Nodes root@dlp ~(keystone)# su -s /bin/bash nova -c "nova-manage cell_v2 discover_hosts" root@dlp ~(keystone)# openstack compute service list +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ | 65429d28-6313-4f6c-a733-0b8426d6d5dd | nova-scheduler | dlp.srv.world | internal | enabled | up | 2022-04-29T13:25:12.000000 | | d1f20c3a-ea4a-4d1e-a3ab-276dc80319bf | nova-conductor | dlp.srv.world | internal | enabled | up | 2022-04-29T13:25:12.000000 | | 3ca3eb17-726b-4133-b3a5-619079e5fa86 | nova-compute | dlp.srv.world | nova | enabled | up | 2022-04-29T13:25:12.000000 | | 916f46d4-f916-4514-8d8d-35c62a8f723e | nova-compute | node01.srv.world | nova | enabled | up | 2022-04-29T13:25:11.000000 | +--------------------------------------+----------------+------------------+----------+---------+-------+----------------------------+ |
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