Hi Yes, with two interfaces you can deploy all-in-one. That is the minimum requirement to use two nic. network_interface: "ens224" <---- This is going to be control plane of openstack where you can access API or GUI neutron_external_interface: "ens160" <---- This is your provider network where VM will be connected and i would say use flat networking if you don't have VLAN in your LAN (again its your choice what to use) On Thu, Feb 29, 2024 at 12:00 AM KK CHN <kkchn.in@gmail.com> wrote:

List,

My kolla-ansible OpenStack installation all-in-one on Virtual Machine( Ubuntu 22.04, )

This base VM has three vNICs

1. ens192 with ip 10.170.16.128 from my organization's LAN with internet connectivity

2. ens224 is configured manually with a 10.220.0.51 IP ( from a VLAN for internal testing without internet)

3. ens160 This interface is made up without any IPs ( I don't know why this has to be up without any IP address, but kolla-ansible all-in-one installation document specifies one interface like this required )

Can I do the kolla-ansible deployment with the above 2 vNICs only ( ens192 and ens 224 ?)

But ens192 I cannot have without IP addresses as it is my organizational LAN. Other clients in the office use this Segment for daily work . I don't have control on 10.170.16.0/24 but only on10.170.16.128 ip

Any serious issues there by using only ens192 and ens224 alone in this case ?

( I can use ens224 ( 10.220.0.0/24 segment as floating IPs as it is in my control as a VLAN)

But How can I connect the internet and external world communication to this vLAN 10.220.0.0/24 from 10.170.16.128 IP which has the internet. (to use these vLAN IPs as floating point IPs )

my tenant network can be ( all VMs can be on 10.0.0.0/24)

How to provide the internet to this vLAN 10.220.0.0/24 from the available internet connected IP ens192 (10.170.16.128 with internet)

I have only control on this IP but not on 10.170.16.0/24 network as it is not under my control.

Can I use the following config for bootstrapping and deploying kolla-ansible all-in-one

*Correct me what I am missing or what wrong I am doing in this setup ??*

(kolla_ansible_venv3) ubuntu@ubuntu-VM:~$ grep ^[^#] /etc/kolla/globals.yml --- workaround_ansible_issue_8743: yes config_strategy: "COPY_ALWAYS" kolla_base_distro: "ubuntu" openstack_release: "2023.1" kolla_internal_vip_address: "10.220.0.24" kolla_external_vip_address: "{{ kolla_internal_vip_address }}" kolla_container_engine: docker network_interface: "ens224" neutron_external_interface: "ens160" neutron_plugin_agent: "openvswitch" nova_compute_virt_type: "qemu" (kolla_ansible_venv3) ubuntu@ubuntu-VM:~$