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resize instance [closed]

asked 2016-04-05 14:08:25 -0500

Whistler gravatar image

How to resize an instance in openstack kilo.

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Closed for the following reason the question is answered, right answer was accepted by Whistler
close date 2016-04-28 11:18:19.406157

2 answers

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answered 2016-04-06 02:44:36 -0500

soumitrakarmakar gravatar image

updated 2016-04-28 11:16:53 -0500

Allow password less ssh communication between your compute nodes. The problem should be resolved. **

  1. cat /etc/passwd | grep nova (check if the userid in all the compute are same.)
  2. Modify user nova: usermod -s /bin/bash nova

Generate ssh key for nova user 3. su - nova 4. ssh-keygen -t rsa -bash-4.2$ cat << EOF > ~/.ssh/config Host * StrictHostKeyChecking no UserKnownHostsFile=/dev/null EOF

-bash-4.2$ cat ~/.ssh/ > .ssh/authorized_keys -bash-4.2$ chmod 600 .ssh/authorized_keys

Then scp the files in .ssh/ to all compute nodes scp .ssh/* ip_of_your_compute_node://var/lib/nova/.ssh/

for that setup a password for nova:

passwd nova


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check your flavor

herrsergio gravatar imageherrsergio ( 2016-04-28 10:16:20 -0500 )edit

answered 2016-04-06 05:39:13 -0500

The command to resize instance is

nova resize myCirrosServer 4 --poll

--poll parameter is used to display the resize progress.

4 is the flavor id that you can get by nova flavor-list and the instance will be resized to that flavour.

Hope that helps !!

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Asked: 2016-04-05 14:08:25 -0500

Seen: 432 times

Last updated: Apr 28 '16