witch version is beter
i want install openstack for small enterprise witch os and openstack version is beter!? centos 8 with train is good??
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I don't think Train can be easily installed on Centos 8. Apart from that, use a recent OpenStack version on a distro that you are familiar with.
thank you ,how many node required for using openvswitch for networking ? three node control network compute?
At least one node is required for openvswitch networking.
A single node is sufficient. See all-in-one installations Packstack, Devstack, OpenStack-Ansible etc.