Multi-Node Lab tutorial

asked 2020-08-29 12:16:41 -0500

jenia gravatar image

updated 2020-08-29 12:18:09 -0500

I'm going through OpenStack https://docs.openstack.org/devstack/latest/guides/multinode-lab.html (tutorial)

In the subsection "Set Up Ssh" it says "Set up the stack user on each node with an ssh key for access". Do I need to spawn up the worker nodes (VMs) myself rather than using the cluster controller to spin up the worker nodes?

If I need to spin up the workers nodes myself, I suppose I need to give them the following IPs (for example):

auto eth0 iface eth0 inet static
    address 192.168.42.129
    netmask 255.255.255.0
    gateway 192.168.42.1

and

auto eth0 iface eth0 inet static
    address 192.168.42.130
    netmask 255.255.255.0
    gateway 192.168.42.1

Furthermore, what is the role of the gateway?

It's like a jump node or something?

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answered 2020-08-29 19:39:53 -0500

Yes, you need to create the worker nodes and configure them as suggested at https://docs.openstack.org/devstack/l....

Gateway is the router in your network.

If you don't know the meaning of the gateway clause, I suggest you study networking in general and Linux networking in particular before you set up an OpenStack cluster. Without networking skills, you will have plenty of problems. By the way, the network setup in the instructions only works for Ubuntu 16 and earlier. Ubuntu 18 and later uses a different configuration tool named netplan.

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Asked: 2020-08-29 12:16:41 -0500

Seen: 52 times

Last updated: Aug 29