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Network setup

Building a tenant network​

The commands below create the topology described in Networking: a private tenant subnet, a router whose external gateway is provider-external, and a load balancer that gives the workload a public VIP.

Quick Setup (OpenStack CLI)​

# 1. Create a private tenant network and subnet
openstack network create my-network
openstack subnet create my-subnet \
  --network my-network \
  --subnet-range 192.168.100.0/24

# 2. Create a router and attach it to provider-external
openstack router create my-router
openstack router set my-router --external-gateway provider-external

# 3. Connect the private subnet to the router
openstack router add subnet my-router my-subnet

# 4. Create a load balancer on provider-external for public access
openstack loadbalancer create \
  --name my-lb \
  --vip-network-id $(openstack network show provider-external -f value -c id)
note

Without the router's external gateway set to provider-external, neither outbound Internet traffic nor inbound public access will work.