Configuring Neutron on network Node
“Everyone has been made for some particular work, and the desire for that work has been put in every heart.”
–Rumi
Step One: Install NTP and add necessary repositories:
[[email protected] ~]# yum -y install ntp Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile base: centos.mirror.liquidtelecom.com extras: centos.mirror.liquidtelecom.com updates: centos.mirror.liquidtelecom.com Resolving Dependencies --> Running transaction check
[[email protected] ~]# vim /etc/ntp.conf # server 0.centos.pool.ntp.org iburst # server 1.centos.pool.ntp.org iburst # server 2.centos.pool.ntp.org iburst # server 3.centos.pool.ntp.org iburst # Add your own server pools server 0.africa.pool.ntp.org server 1.africa.pool.ntp.org server 2.africa.pool.ntp.org server 3.africa.pool.ntp.org
[[email protected] ~]# systemctl start ntpd [[email protected] ~]# systemctl enable ntpd Created symlink from /etc/systemd/system/multi-user.target.wants/ntpd.service to /usr/lib/systemd/system/ntpd.service. [[email protected] ~]# firewall-cmd --add-service=ntp --permanent success [[email protected] ~]# firewall-cmd --reload success
Add epel and other repositories
[[email protected] ~]# yum -y install epel-release.noarch [[email protected] ~]# yum -y install centos-release-openstack-queens Downloading packages: (1/5): centos-release-qemu-ev-1.0-4.el7.centos.noarch.rpm | 11 kB 00:00:00 (2/5): centos-release-ceph-luminous-1.1-2.el7.centos.noarch.rpm | 4.4 kB 00:00:00 (3/5): centos-release-virt-common-1-1.el7.centos.noarch.rpm | 4.5 kB 00:00:00 (4/5): centos-release-storage-common-2-2.el7.centos.noarch.rpm | 5.1 kB 00:00:00 (5/5): centos-release-openstack-queens-1-2.el7.centos.noarch.rpm | 5.3 kB 00:00:01 [[email protected] ~]# sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/CentOS-OpenStack-queens.repo
Step Two: Install neutron and everything it needs e.g openvswitch etc
[[email protected] ~]$ yum --enablerepo=centos-openstack-queens,epel -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile base: centos.mirror.liquidtelecom.com centos-qemu-ev: centos.mirror.liquidtelecom.com epel: mirror.bytemark.co.uk extras: centos.mirror.liquidtelecom.com updates: centos.mirror.liquidtelecom.com centos-ceph-luminous | 2.9 kB 00:00:00 centos-openstack-queens | 2.9 kB 00:00:00 centos-qemu-ev | 2.9 kB 00:00:00 (1/3): centos-qemu-ev/7/x86_64/primary_db | 58 kB 00:00:00 (2/3): centos-ceph-luminous/7/x86_64/primary_db | 142 kB 00:00:02 (3/3): centos-openstack-queens/7/x86_64/primary_db | 1.1 MB 00:00:23 Resolving Dependencies
Step Three: Back up the original neutron config file and create a new one with the following configs
[[email protected] ~]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.bak [[email protected] ~]# vim /etc/neutron/neutron.conf # create new file [DEFAULT] core_plugin = ml2 service_plugins = router auth_strategy = keystone state_path = /var/lib/neutron allow_overlapping_ips = True # RabbitMQ connection info transport_url = rabbit://openstack:[email protected] # Keystone auth info [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 = neutron password = neutron123 [oslo_concurrency] lock_path = $state_path/lock
Step Four: Head over to the following files and edit as well as shown below
[[email protected] ~]# vim /etc/neutron/dhcp_agent.ini # on line 17: add this interface_driver = openvswitch # on line 28: uncomment it as shown dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq # on line 37: uncomment and change to look like below enable_isolated_metadata = true
[[email protected] ~]# vim /etc/neutron/metadata_agent.ini # on line 22: uncomment and specify Nova API server nova_metadata_host = 192.168.122.130 # on line 34: uncomment and specify any secret key you like metadata_proxy_shared_secret = metadata_secret # on line 260: uncomment and specify Memcache server memcache_servers = 192.168.122.130:11211
[[email protected] ~]# vim /etc/neutron/plugins/ml2/ml2_conf.ini # on line 129: add the following [ml2] type_drivers = flat,vlan,gre,vxlan tenant_network_types = mechanism_drivers = openvswitch,l2population extension_drivers = port_security
[[email protected] ~]# vim /etc/neutron/plugins/ml2/openvswitch_agent.ini on line 308: add as follows [securitygroup] firewall_driver = openvswitch enable_security_group = true enable_ipset = true
It is now time to start and enable Neutron services.. Whoa
[[email protected] ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [[email protected] ~]# systemctl start openvswitch [[email protected] ~]# systemctl enable openvswitch Created symlink from /etc/systemd/system/multi-user.target.wants/openvswitch.service to /usr/lib/systemd/system/openvswitch.service. [[email protected] ~]# ovs-vsctl add-br br-int [[email protected] ~]# for service in dhcp-agent l3-agent metadata-agent openvswitch-agent; do systemctl start neutron-$service systemctl enable neutron-$service done Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-dhcp-agent.service to /usr/lib/systemd/system/neutron-dhcp-agent.service. Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-l3-agent.service to /usr/lib/systemd/system/neutron-l3-agent.service. Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-metadata-agent.service to /usr/lib/systemd/system/neutron-metadata-agent.service. Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-openvswitch-agent.service to /usr/lib/systemd/system/neutron-openvswitch-agent.service.
Thank you guys for following through thus far. Our next sequel we will be configuring Neutron on the Compute Node. Stay tuned and we hope you’ve enjoyed so far. The links below are for our previous guides on 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
Installation of Three node OpenStack Queens Cluster – Part Five
Installation of Three node OpenStack Queens Cluster – Part Six
Next guide goes below
Installation of Three node OpenStack Queens Cluster – Part Eight
