env_suffix isn't actually set to .stg on openQA staging because
it's not a normal staging host. Let's not set it in case it
breaks other plays, but use a custom var instead.
Signed-off-by: Adam Williamson <awilliam@redhat.com>
In ansible 2.8 the - character isn't supposed to be valid in group names.
While we could override this, might has well just bite the bullet and change it.
So, just switch all group names to use _ instead of -
Signed-off-by: Kevin Fenzi <kevin@scrye.com>