OpenStack Yoga : Configure Neutron (Network Node)2022/06/09 |
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Configure OpenStack Network Service (Neutron).
This example is not on the All in One Settings like here, but Configure the 3 Nodes environment like follows.
Neutron needs a plugin software, it's possible to choose it from some softwares. It chooses ML2 plugin on this example. ( it uses Open vSwitch under the backend )
------------+-----------------------------+-----------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ dlp.srv.world ] | | [ network.srv.world ] | | [ node01.srv.world ] |
| (Control Node) | | (Network Node) | | (Compute Node) |
| | | | | |
| MariaDB RabbitMQ | | Neutron L2/L3 Agent | | Libvirt |
| Memcached httpd | | Neutron Metadata | | Nova Compute |
| Keystone Glance | | Open vSwitch | | Neutron L2 Agent |
| Nova API | | | | Open vSwitch |
| Neutron Server | | | | |
| Neutron Metadata | | | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Configure OpenStack Yoga repository like here of [3] and Install Neutron services on Network Node. |
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[root@network ~]# dnf --enablerepo=centos-openstack-yoga,epel,crb -y install openstack-neutron openstack-neutron-ml2 openstack-neutron-openvswitch libibverbs
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| [2] | Configure Neutron servides. |
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[root@network ~]# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
[root@network ~]#
vi /etc/neutron/neutron.conf # create new [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:password@dlp.srv.world # 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 = neutron password = servicepassword # if using self-signed certs on httpd Keystone, turn to [true] insecure = false [oslo_concurrency] lock_path = $state_path/lock
[root@network ~]#
chmod 640 /etc/neutron/neutron.conf [root@network ~]# chgrp neutron /etc/neutron/neutron.conf
[root@network ~]#
vi /etc/neutron/l3_agent.ini
[DEFAULT]
# line 2 : add
interface_driver = openvswitch
[root@network ~]#
vi /etc/neutron/dhcp_agent.ini
[DEFAULT]
# line 2 : add
interface_driver = openvswitch
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq enable_isolated_metadata = true
[root@network ~]#
vi /etc/neutron/metadata_agent.ini
[DEFAULT]
# line 2 : add to specify Nova API server nova_metadata_host = dlp.srv.world nova_metadata_protocol = https # specify any secret key you like metadata_proxy_shared_secret = metadata_secret # specify Memcache server memcache_servers = dlp.srv.world:11211
[root@network ~]#
vi /etc/neutron/plugins/ml2/ml2_conf.ini # add to the end # OK with no value for [tenant_network_types] now (set later if need)
[ml2]
type_drivers = flat,vlan,gre,vxlan tenant_network_types = mechanism_drivers = openvswitch extension_drivers = port_security
[root@network ~]#
vi /etc/neutron/plugins/ml2/openvswitch_agent.ini # add to the end
[securitygroup]
firewall_driver = openvswitch enable_security_group = true enable_ipset = true |
| [3] | If SELinux is enabled, change policy like follows. |
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[root@network ~]# dnf --enablerepo=centos-openstack-yoga -y install openstack-selinux [root@network ~]# setsebool -P neutron_can_network on [root@network ~]# setsebool -P haproxy_connect_any on [root@network ~]# setsebool -P daemons_enable_cluster_mode on
[root@network ~]#
vi ovsofctl.te # create new
module ovsofctl 1.0;
require {
type crontab_exec_t;
type gpg_exec_t;
type hostname_exec_t;
type keepalived_exec_t;
type openflow_port_t;
type neutron_tmp_t;
type neutron_t;
type neutron_exec_t;
type neutron_t;
type dnsmasq_t;
type tracefs_t;
type nsfs_t;
type openvswitch_load_module_t;
class file { execute_no_trans getattr open read };
class dir search;
class filesystem unmount;
class sock_file { create unlink write };
class tcp_socket name_bind;
class capability { dac_override sys_rawio };
}
#============= neutron_t ==============
allow neutron_t self:capability { dac_override sys_rawio };
allow neutron_t neutron_exec_t:file execute_no_trans;
allow neutron_t neutron_tmp_t:sock_file { create unlink write };
allow neutron_t openflow_port_t:tcp_socket name_bind;
allow neutron_t crontab_exec_t:file getattr;
allow neutron_t gpg_exec_t:file getattr;
allow neutron_t hostname_exec_t:file getattr;
allow neutron_t keepalived_exec_t:file getattr;
allow neutron_t nsfs_t:file { getattr open read };
allow neutron_t nsfs_t:filesystem unmount;
#============= openvswitch_load_module_t ==============
allow openvswitch_load_module_t tracefs_t:dir search;
#============= dnsmasq_t ==============
allow dnsmasq_t self:capability dac_override;
checkmodule -m -M -o ovsofctl.mod ovsofctl.te [root@network ~]# semodule_package --outfile ovsofctl.pp --module ovsofctl.mod [root@network ~]# semodule -i ovsofctl.pp |
| [4] | Start Neutron services. |
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[root@network ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini [root@network ~]# systemctl enable --now openvswitch [root@network ~]# ovs-vsctl add-br br-int [root@network ~]# systemctl enable --now neutron-dhcp-agent neutron-l3-agent neutron-metadata-agent neutron-openvswitch-agent |
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