This is just a quick video to clean up VAR log and get the current version of openstack software before we do a whole cloud upgrade.
Display file systems on nova compute nodes:
$ df -h
This is a good command to show you what is filling up your root file system, it takes a while to run:
$ sudo du --max-depth=5 /* | sort -rn >/tmp/greedy.txt
Then read the txt file it generated:
$ sudo nano /tmp/greedy.txt
In my file most of the space was being used up by /var/log.
If you don’t need the logs and this is a sandbox environment use this command to clean out /var/log:
$ sudo rm /var/log/*
Clean out the nova and neutron folders as well:
$ sudo rm /var/log/nova/* $ sudo rm /var/log/neutron/*
Before we upgrade login to one of your nova compute nodes and check the current version:
$ nova-manage --version
I am running 12.0.0, a quick google says this is the Liberty version.
Also check your openstack-install package on the MAAS server, just note what version you are using before the upgrade.
$ dpkg -l | grep openstack
chris@maas:~$ dpkg -l | grep openstack ii openstack 0.99.27-0~1503~stable1~ubuntu14.04.1 all Ubuntu Openstack Installer ii openstack-landscape 0.99.27-0~1630~stable1~ubuntu14.04.1 all Ubuntu Openstack Installer (landscape) - dependency package ii openstack-multi 0.99.27-0~1630~stable1~ubuntu14.04.1 all Ubuntu Openstack Installer (multi-system) - dependency package