don't know how to allocate Floating IPs in OpenStack profile
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Gautam Thaker
Aug 24, 2023, 5:52:24 PM8/24/23
to emulab-users
I had previously tested with a CTL node and 1 COMPUTE node and I was able to spin up 2 VMs on the compute node and assign floating IPs to them.
I am now interested in two instances that are on two separate compute nodes. I thus created an OpenStack profile experiment with 1 CTL and 2 compute nodes. This worked fine. I con't find a way to specify on which physical compute node I wanted to spin up each of my two instances. However, it appears that they were allocated by the system to be on different physical nodes, so I am good there. But this time I seem to not have Floating IPs that I can allocate from. I tried "Allocate IP to Project" button, but there it brought me to a screen where I didn't know what to put in DNS Domain and DNS Name.
I am now interested in two instances that are on two separate compute nodes. I thus created an OpenStack profile experiment with 1 CTL and 2 compute nodes. This worked fine. I con't find a way to specify on which physical compute node I wanted to spin up each of my two instances. However, it appears that they were allocated by the system to be on different physical nodes, so I am good there. But this time I seem to not have Floating IPs that I can allocate from. I tried "Allocate IP to Project" button, but there it brought me to a screen where I didn't know what to put in DNS Domain and DNS Name.
ANy hints welcome.
Gautam
Gautam
Gautam Thaker
Aug 25, 2023, 6:49:10 PM8/25/23
to emulab-users
So still not sure how to ssh into my instances as I don't seem to have any Floating IPs that I can assign to them. Also, the network topology mentions a
155.98.37.90 and .91 addersses on the ext-net for the 2 routers, but it appears my CTL and CP-1 CP-2 nodes are on 155.98.36.12/30 network? (I may be getting confused about subnet masks here...)
May be I should release this and restart the experiment, this time paying careful attention to Floating IPs pool allocation....
May be I should release this and restart the experiment, this time paying careful attention to Floating IPs pool allocation....
David M. Johnson
Aug 26, 2023, 7:28:40 PM8/26/23
to emulab...@googlegroups.com
On 8/25/23 16:49, Gautam Thaker wrote:
> So still not sure how to ssh into my instances as I don't seem to have
> any Floating IPs that I can assign to them. Also, the network topology
> mentions a
>
> 155.98.37.90 and .91 addersses on the ext-net for the 2 routers, but it
> appears my CTL and CP-1 CP-2 nodes are on 155.98.36.12/30 network? (I
> may be getting confused about subnet masks here...)
Hi Gautam. We have an OpenStack tutorial in our documentation. Take a
> So still not sure how to ssh into my instances as I don't seem to have
> any Floating IPs that I can assign to them. Also, the network topology
> mentions a
>
> 155.98.37.90 and .91 addersses on the ext-net for the 2 routers, but it
> appears my CTL and CP-1 CP-2 nodes are on 155.98.36.12/30 network? (I
> may be getting confused about subnet masks here...)
look at Step 9 of this section (allocating floating IPs to your
instance):
https://docs.cloudlab.us/openstack-tutorial.html#%28part._openstack-tutorial-instances%29
... that should help.
David
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