Unable to establish connection to http://controller:35357/v2.0/tenants

If you get this error while using keystone.

Just hash (#) the line start with driver under [token]

#driver = keystone.token.persistence.backends.sql.Token

openstack-install error

If you get the following , when try to run: openstack-install

Error:

Previous installation detected. Did you mean to run openstack-status instead?
If attempting to re-install please run     $ sudo openstack-install -u

you need to delete the following: .cloud-install (under the user home directory)

Enjoy

OpenStack MAAS failed commissioning wakeonlan

If you get the error while try to commission or wake on lan,

you will need to check first if you have it installed on your server (MAAS server).

if you check the template:
/etc/maas/templates/power/ether_wake.template

you will see that it looks for:
/usr/bin/wakeonlan
and
/usr/sbin/etherwake

just install them:
apt-get install etherwake wakeonlan -y

and if you want to test it for each node: i = interface and b = broadcast
/usr/sbin/etherwake -i <INTERFACE> -b <MAC>
/usr/sbin/etherwake -i eth0 -b e8:39:35:39:e3:11

Enjoy,