DocumentationNetworking
Tenant and provider networking is implemented with OVN on Open vSwitch (OVS) using geneve overlay tunnels.
IPv4
There is 1 generally available external network, which you can allocate floating IP addresses (FIPs) from:
external-ipv4-general-public- This network has 1 address pool:
78.128.234.0/24(allocation pool78.128.234.3–78.128.234.254, gateway78.128.234.1)
- FIPs from this network are publicly accessible.
- This network has 1 address pool:
Unlike the Brno G2 site, there is no MUNI-internal external network on this cloud.
Group Projects
By default, group projects are provided with a default internal network:
group-project-network(192.168.0.0/24)
This network already has a route (router group-project-router) to the recommended external network external-ipv4-general-public,
which means you can associate FIPs from this external network to instances connected to the default internal network.
You may also use the internal-ipv4-general-private internal network with the same effect.
In case you create your own internal network (see Create Networking How-to Guide), you need to handle the routing yourself, i.e. create a new router (see Create Router How-to Guide), if you want to assign FIPs from an external network to your instances.
IPv6
In the Oliver cloud site, you can use following IPv6 network:
external-ipv6-general-public(2001:718:ff01:3::/64, DHCPv6 stateful)
Load balancers (Octavia)
Load balancer amphorae run in a dedicated management network internal-ipv4-lbaas-mgmt-private (172.17.0.0/20).
DNS
The cloud provides DNS as a service (OpenStack Designate, server dns.oliver.platform.cloud.e-infra.cz).
Group projects with the default networking enabled can also receive a DNS zone
<project-name>.dyn.oliver.platform.cloud.e-infra.cz for their instances.
Security groups
Apart from the default security group, every project in the OpenStack cloud also contains pre-generated security group ssh. Rules of the ssh groups enable access to virtual servers via SSH protocol (IPv4+IPv6).
