Troubleshooting your API instances from the OpenStack Command Line

In addition to the common OpenStack CLI commands like openstack server list here are some typical commands to troubleshoot an instance from the command line:

CommandWhat it does
openstack server show UIDshows you the state of the instance and any OpenStack errors
openstack console log show UIDshows you the running console log of the instance (same as doing "dmesg" from the command line of the instance itself)
openstack console url show UIDyields a URL you can paste into your browser to get a login console for your instance

Usually a combination of these things will let you see what's going on and what to do to fix. You should also be able to do all of these things from Horizon, as well.