- ### locating the right slicefamily
- # this is a first draft, and more a proof of concept thing
- # the idea is to parse vref for dash-separated wishes,
- # and to project these against the defaults
- # however for cases like when vref is 'planetflow', if we do not understand
- # any of the wishes we take vref as is
- # this could be improved by having the vserver-reference init script be a bit smarter
- # so we could take planetflow as the pldistro part here
- as_is=None
- # defaults
- default=file("/etc/planetlab/defaultvref").read().strip()
- (pldistro,fcdistro,arch) = default.split("-")
- # from the slice attribute: cut dashes and try to figure the meaning
- slice_wishes = vref.split("-")
- for wish in slice_wishes:
- if wish == "i386" or wish == "x86_64":
- arch=wish
- elif wish == "planetlab" or wish == "onelab" or wish == "vini":
- pldistro=wish
- elif wish == "f8" or wish == "centos5" :
- fcdistro=wish
- else:
- # if we find something like e.g. planetflow, use it as-is
- as_is=vref
- break
- if as_is:
- refname=as_is
- else:
- refname="-".join( (pldistro,fcdistro,arch) )
- # check the templates exists -- there's probably a better way..
- if not os.path.isdir ("/vservers/.vref/%s"%refname):
- logger.verbose("%s (%s) : vref %s not found, using default %s"%(
- name,vref,refname,default))
- refname=default
- except IOError:
- # have not found defaultvref
- logger.verbose("%s (%s): legacy node - using fallback vrefname 'default'"%(name,vref))
- # for legacy nodes
- refname="default"