Installing Openstack Nova Compute on another node
In this fifth sequel, we shall indulge in the Installation of Nova Compute on another node. It shall have Nova Compute, Libvirt, L2 Agent, and Open vSwitch.
Step 1: Install KVM.
[[email protected] ~]# yum -y install qemu-kvm libvirt virt-install bridge-utils Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile
Check its status
[[email protected] ~]# systemctl status libvirtd ● libvirtd.service - Virtualization daemon Loaded: loaded (/usr/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled) Active: active (running) since Thu 2019-03-07 10:38:25 EST; 3 days ago Docs: man:libvirtd(8) https://libvirt.org Main PID: 78751 (libvirtd) Tasks: 19 (limit: 32768) CGroup: /system.slice/libvirtd.service ├─78751 /usr/sbin/libvirtd ├─78859 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-s… └─78860 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --leasefile-ro --dhcp-s…
Step 2: Install Install openstack-nova-compute:
[[email protected] ~]# yum --enablerepo=centos-openstack-queens,epel -y install openstack-nova-compute Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile epel/x86_64/metalink | 55 kB 00:00:00 base: mirror.ucu.ac.ug centos-qemu-ev: mirror.ucu.ac.ug epel: mirror.layeronline.com extras: mirror.ucu.ac.ug updates: mirror.ucu.ac.ug
Step 3: Configure Openstack Nova Compute
Back up the original Nova file and configure a new one as shown below:
[[email protected] ~]# mv /etc/nova/nova.conf /etc/nova/nova.conf.bak
[[email protected] ~]# vim /etc/nova/nova.conf #new file [DEFAULT] define own IP address of the new node my_ip = 192.168.122.132 state_path = /var/lib/nova enabled_apis = osapi_compute,metadata log_dir = /var/log/nova RabbitMQ connection info set in controller node transport_url = rabbit://openstack:[email protected] [api] auth_strategy = keystone enable VNC [vnc] enabled = True server_listen = 0.0.0.0 server_proxyclient_address = $my_ip novncproxy_base_url = http://192.168.122.130:6080/vnc_auto.html Glance connection info configured in controller node [glance] api_servers = http://192.168.122.130:9292 [oslo_concurrency] lock_path = $state_path/tmp Keystone auth info configured in controller node [keystone_authtoken] www_authenticate_uri = http://192.168.122.130:5000 auth_url = http://192.168.122.130:5000 memcached_servers = 192.168.122.130:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = nova Do not forget the password set when creating nova service password = pepe123 [placement] configured in controller node auth_url = http://192.168.122.130:5000 os_region_name = RegionOne auth_type = password project_domain_name = default user_domain_name = default project_name = service username = placement Do not forget the password set when creating placement service password = pepe1234 [wsgi] api_paste_config = /etc/nova/api-paste.ini
Change permission settings and group for the file created above
[[email protected] ~]# chmod 640 /etc/nova/nova.conf [[email protected] ~]# chgrp nova /etc/nova/nova.conf
Add relevant ports to firewall then start and enable nova-compute
[[email protected] ~]# firewall-cmd --add-port=5900-5999/tcp --permanent success [[email protected] ~]# firewall-cmd --reload success
[[email protected] ~]# systemctl start openstack-nova-compute [[email protected] ~]# systemctl enable openstack-nova-compute Created symlink from /etc/systemd/system/multi-user.target.wants/openstack-nova-compute.service to /usr/lib/systemd/system/openstack-nova-compute.service.
Now we go over to the interesting part where we see whether our newly configured node has been discovered by the controller.
[[email protected] ~(keystone)]# su -s /bin/bash nova -c "nova-manage cell_v2 discover_hosts"
[[email protected] ~(keystone)]# openstack compute service list +----+------------------+------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +----+------------------+------------+----------+---------+-------+----------------------------+ | 3 | nova-consoleauth | controller | internal | enabled | up | 2019-03-11T10:35:04.000000 | | 4 | nova-conductor | controller | internal | enabled | up | 2019-03-11T10:35:11.000000 | | 5 | nova-scheduler | controller | internal | enabled | up | 2019-03-11T10:35:05.000000 | | 6 | nova-compute | node01 | nova | enabled | up | 2019-03-11T10:35:10.000000 | +----+------------------+------------+----------+---------+-------+----------------------------+
There we go guys, stay tuned for our next sequel in this great quest of having our three node cluster up and running. Below are previous links to the first parts of this sequel
Installation of Openstack three Node Cluster on CentOS 7 Part One
Installation of Three node OpenStack Queens Cluster – Part Two
Installation of Three node OpenStack Queens Cluster – Part Three
Installation of Three node OpenStack Queens Cluster – Part Four
Below is the Next guide
Installation of Three node OpenStack Queens Cluster – Part Six
