Debian 11 Bullseye
Sponsored Link

OpenStack Victoria : Neutron Network (FLAT)2021/08/31

 
Configure virtual networking by OpenStack Network Service (Neutron).
For example, configure FLAT type of networking on here.
Before it, Configure basic settings on Control Node, Network Node, Compute Node.
Furthermore, this example is based on the environment that Network Node and Compute Node have 2 network interfaces.
And also [eth1] is up without IP Address, refer to here of [1] to up anonymous interface.
------------+---------------------------+---------------------------+------------
            |                           |                           |
        eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
+-----------+-----------+   +-----------+-----------+   +-----------+-----------+
|    [ Control Node ]   |   |    [ Network Node ]   |   |    [ Compute Node ]   |
|                       |   |                       |   |                       |
|  MariaDB    RabbitMQ  |   |        L2 Agent       |   |        Libvirt        |
|  Memcached  httpd     |   |        L3 Agent       |   |     Nova Compute      |
|  Keystone   Glance    |   |     Metadata Agent    |   |        L2 Agent       |
|  Nova API             |   |                       |   |                       |
|  Neutron Server       |   |                       |   |                       |
|  Metadata Agent       |   |                       |   |                       |
+-----------------------+   +-----------+-----------+   +-----------+-----------+
                                    eth1|(UP with no IP)        eth1|(UP with no IP)

[1] Change settings like follows on both Network Node and Compute Node.
root@network:~#
vi /etc/neutron/plugins/ml2/ml2_conf.ini
# line 174 : change

[ml2_type_flat]
.....
.....
flat_networks =
physnet1
root@network:~#
vi /etc/neutron/plugins/ml2/linuxbridge_agent.ini
# line 162 : add

[linux_bridge]
physical_interface_mappings = physnet1:eth1
root@network:~#
systemctl restart neutron-linuxbridge-agent

[2] Create network. It's OK to work on any node. (example below is on Control Node)
root@dlp ~(keystone)#
projectID=$(openstack project list | grep service | awk '{print $2}')
# create network named [sharednet1]

root@dlp ~(keystone)#
openstack network create --project $projectID \
--share --provider-network-type flat --provider-physical-network physnet1 sharednet1

Created a new network:
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | UP                                   |
| availability_zone_hints   |                                      |
| availability_zones        |                                      |
| created_at                | 2021-08-31T08:42:39Z                 |
| description               |                                      |
| dns_domain                | None                                 |
| id                        | b5cbb9ab-9600-413e-bdf0-fb3749213367 |
| ipv4_address_scope        | None                                 |
| ipv6_address_scope        | None                                 |
| is_default                | False                                |
| is_vlan_transparent       | None                                 |
| mtu                       | 1500                                 |
| name                      | sharednet1                           |
| port_security_enabled     | True                                 |
| project_id                | 1718217eee4b4f2ea143d65122864fe0     |
| provider:network_type     | flat                                 |
| provider:physical_network | physnet1                             |
| provider:segmentation_id  | None                                 |
| qos_policy_id             | None                                 |
| revision_number           | 1                                    |
| router:external           | Internal                             |
| segments                  | None                                 |
| shared                    | True                                 |
| status                    | ACTIVE                               |
| subnets                   |                                      |
| tags                      |                                      |
| updated_at                | 2021-08-31T08:42:39Z                 |
+---------------------------+--------------------------------------+

# create subnet [10.0.0.0/24] in [sharednet1]

root@dlp ~(keystone)#
openstack subnet create subnet1 --network sharednet1 \
--project $projectID --subnet-range 10.0.0.0/24 \
--allocation-pool start=10.0.0.200,end=10.0.0.254 \
--gateway 10.0.0.1 --dns-nameserver 10.0.0.10

Created a new subnet:
+----------------------+--------------------------------------+
| Field                | Value                                |
+----------------------+--------------------------------------+
| allocation_pools     | 10.0.0.200-10.0.0.254                |
| cidr                 | 10.0.0.0/24                          |
| created_at           | 2021-08-31T08:43:01Z                 |
| description          |                                      |
| dns_nameservers      | 10.0.0.10                            |
| dns_publish_fixed_ip | None                                 |
| enable_dhcp          | True                                 |
| gateway_ip           | 10.0.0.1                             |
| host_routes          |                                      |
| id                   | 4ccef7c3-7318-4479-b372-e52d96e189f3 |
| ip_version           | 4                                    |
| ipv6_address_mode    | None                                 |
| ipv6_ra_mode         | None                                 |
| name                 | subnet1                              |
| network_id           | b5cbb9ab-9600-413e-bdf0-fb3749213367 |
| prefix_length        | None                                 |
| project_id           | 1718217eee4b4f2ea143d65122864fe0     |
| revision_number      | 0                                    |
| segment_id           | None                                 |
| service_types        |                                      |
| subnetpool_id        | None                                 |
| tags                 |                                      |
| updated_at           | 2021-08-31T08:43:01Z                 |
+----------------------+--------------------------------------+

# confirm settings

root@dlp ~(keystone)#
openstack network list

+--------------------------------------+------------+--------------------------------------+
| ID                                   | Name       | Subnets                              |
+--------------------------------------+------------+--------------------------------------+
| b5cbb9ab-9600-413e-bdf0-fb3749213367 | sharednet1 | 4ccef7c3-7318-4479-b372-e52d96e189f3 |
+--------------------------------------+------------+--------------------------------------+
[3] Create and start a Virtual machine Instance with the network just created above.
# confirm available [flavor] list

debian@dlp ~(keystone)$
openstack flavor list

+----+----------+------+------+-----------+-------+-----------+
| ID | Name     |  RAM | Disk | Ephemeral | VCPUs | Is Public |
+----+----------+------+------+-----------+-------+-----------+
| 0  | m1.small | 2048 |   10 |         0 |     1 | True      |
+----+----------+------+------+-----------+-------+-----------+

# confirm available image list

debian@dlp ~(keystone)$
openstack image list

+--------------------------------------+----------+--------+
| ID                                   | Name     | Status |
+--------------------------------------+----------+--------+
| 773971b3-b4be-4b07-aa06-fe8ca76b395d | Debian11 | active |
+--------------------------------------+----------+--------+

# confirm available network list

debian@dlp ~(keystone)$
openstack network list

+--------------------------------------+------------+--------------------------------------+
| ID                                   | Name       | Subnets                              |
+--------------------------------------+------------+--------------------------------------+
| b5cbb9ab-9600-413e-bdf0-fb3749213367 | sharednet1 | 4ccef7c3-7318-4479-b372-e52d96e189f3 |
+--------------------------------------+------------+--------------------------------------+

# create a security group for instances

debian@dlp ~(keystone)$
openstack security group create secgroup01

+-----------------+---------------------------------------------------------------------------+
| Field           | Value                                                                     |
+-----------------+---------------------------------------------------------------------------+
| created_at      | 2021-08-31T09:11:50Z                                                      |
| description     | secgroup01                                                                |
| id              | 3917ede8-a357-46cd-af3c-df112b7c4193                                      |
| name            | secgroup01                                                                |
| project_id      | cba75a02a921457db62b660f3d0b57c4                                          |
| revision_number | 1                                                                         |
| rules           | created_at='2021-08-31T09:11:50Z', direction='egress', ethertype='IP..... |
|                 | created_at='2021-08-31T09:11:50Z', direction='egress', ethertype='IP..... |
| stateful        | True                                                                      |
| tags            | []                                                                        |
| updated_at      | 2021-08-31T09:11:50Z                                                      |
+-----------------+---------------------------------------------------------------------------+

# create a SSH keypair for connecting to instances

debian@dlp ~(keystone)$
ssh-keygen -q -N ""

Enter file in which to save the key (/home/debian/.ssh/id_rsa):
# add public-key

debian@dlp ~(keystone)$
openstack keypair create --public-key ~/.ssh/id_rsa.pub mykey

+-------------+-------------------------------------------------+
| Field       | Value                                           |
+-------------+-------------------------------------------------+
| fingerprint | ef:8a:e6:db:00:11:30:dd:02:b1:b6:b0:9f:2d:57:02 |
| name        | mykey                                           |
| user_id     | 62a91aa559f64acab11861ed7cd51ecc                |
+-------------+-------------------------------------------------+

debian@dlp ~(keystone)$
netID=$(openstack network list | grep sharednet1 | awk '{ print $2 }')

debian@dlp ~(keystone)$
openstack server create --flavor m1.small --image Debian11 --security-group secgroup01 --nic net-id=$netID --key-name mykey Debian-11
debian@dlp ~(keystone)$
openstack server list

+--------------------------------------+-----------+--------+-----------------------+----------+----------+
| ID                                   | Name      | Status | Networks              | Image    | Flavor   |
+--------------------------------------+-----------+--------+-----------------------+----------+----------+
| e2144a46-183e-481e-8b40-5bf517b1431a | Debian-11 | ACTIVE | sharednet1=10.0.0.254 | Debian11 | m1.small |
+--------------------------------------+-----------+--------+-----------------------+----------+----------+
[4] Configure security settings for the security group you created above to access with SSH and ICMP.
# permit ICMP

debian@dlp ~(keystone)$
openstack security group rule create --protocol icmp --ingress secgroup01

+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-08-31T09:15:02Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 45c81656-5cb9-4199-9ffc-8a1657e79e17 |
| name              | None                                 |
| port_range_max    | None                                 |
| port_range_min    | None                                 |
| project_id        | cba75a02a921457db62b660f3d0b57c4     |
| protocol          | icmp                                 |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 3917ede8-a357-46cd-af3c-df112b7c4193 |
| tags              | []                                   |
| updated_at        | 2021-08-31T09:15:02Z                 |
+-------------------+--------------------------------------+

# permit SSH

debian@dlp ~(keystone)$
openstack security group rule create --protocol tcp --dst-port 22:22 secgroup01

+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| created_at        | 2021-08-31T09:15:17Z                 |
| description       |                                      |
| direction         | ingress                              |
| ether_type        | IPv4                                 |
| id                | 84b92a0d-0237-47ae-a175-d2bce07475f4 |
| name              | None                                 |
| port_range_max    | 22                                   |
| port_range_min    | 22                                   |
| project_id        | cba75a02a921457db62b660f3d0b57c4     |
| protocol          | tcp                                  |
| remote_group_id   | None                                 |
| remote_ip_prefix  | 0.0.0.0/0                            |
| revision_number   | 0                                    |
| security_group_id | 3917ede8-a357-46cd-af3c-df112b7c4193 |
| tags              | []                                   |
| updated_at        | 2021-08-31T09:15:17Z                 |
+-------------------+--------------------------------------+

debian@dlp ~(keystone)$
openstack security group rule list secgroup01

+--------------------------------------+-------------+-----------+-----------+------------+-----------------------+
| ID                                   | IP Protocol | Ethertype | IP Range  | Port Range | Remote Security Group |
+--------------------------------------+-------------+-----------+-----------+------------+-----------------------+
| 1e25e933-e2cd-47a6-b729-7d19ba8b59e8 | None        | IPv4      | 0.0.0.0/0 |            | None                  |
| 45c81656-5cb9-4199-9ffc-8a1657e79e17 | icmp        | IPv4      | 0.0.0.0/0 |            | None                  |
| 84b92a0d-0237-47ae-a175-d2bce07475f4 | tcp         | IPv4      | 0.0.0.0/0 | 22:22      | None                  |
| efca3489-674f-4bba-8a7a-29eb5ead212d | None        | IPv6      | ::/0      |            | None                  |
+--------------------------------------+-------------+-----------+-----------+------------+-----------------------+
[5] Login to Instance.
debian@dlp ~(keystone)$
ssh debian@10.0.0.254

The authenticity of host '10.0.0.254 (10.0.0.254)' can't be established.
ECDSA key fingerprint is SHA256:InwJlXliarVPnOMqwbUgb9rMo7qY6TeFMbbqoGUOm94.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '10.0.0.254' (ECDSA) to the list of known hosts.

Linux debian 5.10.0-8-amd64 #1 SMP Debian 5.10.46-4 (2021-08-03) x86_64

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

debian@debian:~$     # logined
Matched Content