def search_for_mirror_dns(configured, mirrortype, cfg, cloud):
"""
Try to resolve a list of predefines DNS names to pick mirrors
"""
mirror = None
if configured:
mydom = ""
doms = []
if mirrortype == "primary":
mirrordns = "mirror"
elif mirrortype == "security":
mirrordns = "security-mirror"
else:
raise ValueError("unknown mirror type")
# if we have a fqdn, then search its domain portion first
(_, fqdn) = util.get_hostname_fqdn(cfg, cloud)
mydom = ".".join(fqdn.split(".")[1:])
if mydom:
doms.append(".%s" % mydom)
doms.extend((".localdomain", "",))
mirror_list = []
distro = cloud.distro.name
mirrorfmt = "http://%s-%s%s/%s" % (distro, mirrordns, "%s", distro)
for post in doms:
mirror_list.append(mirrorfmt % (post))
mirror = util.search_for_mirror(mirror_list)
return mirror
def find_apt_mirror_info(cloud, cfg):
"""find an apt_mirror given the cloud and cfg provided."""
mirror = None
# this is less preferred way of specifying mirror preferred would be to
# use the distro's search or package_mirror.
mirror = cfg.get("apt_mirror", None)
search = cfg.get("apt_mirror_search", None)
if not mirror and search:
mirror = util.search_for_mirror(search)
if (not mirror
and util.get_cfg_option_bool(cfg, "apt_mirror_search_dns", False)):
mydom = ""
doms = []
# if we have a fqdn, then search its domain portion first
(_hostname, fqdn) = util.get_hostname_fqdn(cfg, cloud)
mydom = ".".join(fqdn.split(".")[1:])
if mydom:
doms.append(".%s" % mydom)
doms.extend((
".localdomain",
"",
))
mirror_list = []
distro = cloud.distro.name
mirrorfmt = "http://%s-mirror%s/%s" % (distro, "%s", distro)
for post in doms:
mirror_list.append(mirrorfmt % (post))
mirror = util.search_for_mirror(mirror_list)
mirror_info = cloud.datasource.get_package_mirror_info()
# this is a bit strange.
# if mirror is set, then one of the legacy options above set it
# but they do not cover security. so we need to get that from
# get_package_mirror_info
if mirror:
mirror_info.update({'primary': mirror})
return mirror_info
def find_apt_mirror(cloud, cfg):
""" find an apt_mirror given the cloud and cfg provided """
# TODO: distro and defaults should be configurable
distro = "ubuntu"
defaults = {
'ubuntu': "http://archive.ubuntu.com/ubuntu",
'debian': "http://archive.debian.org/debian",
}
mirror = None
cfg_mirror = cfg.get("apt_mirror", None)
if cfg_mirror:
mirror = cfg["apt_mirror"]
elif "apt_mirror_search" in cfg:
mirror = util.search_for_mirror(cfg['apt_mirror_search'])
else:
if cloud:
mirror = cloud.get_mirror()
mydom = ""
doms = []
if not mirror and cloud:
# if we have a fqdn, then search its domain portion first
(_hostname, fqdn) = util.get_hostname_fqdn(cfg, cloud)
mydom = ".".join(fqdn.split(".")[1:])
if mydom:
doms.append(".%s" % mydom)
if not mirror:
doms.extend((".localdomain", "",))
mirror_list = []
mirrorfmt = "http://%s-mirror%s/%s" % (distro, "%s", distro)
for post in doms:
mirror_list.append(mirrorfmt % post)
mirror = util.search_for_mirror(mirror_list)
if not mirror:
mirror = defaults[distro]
return mirror
def find_apt_mirror_info(cloud, cfg):
"""find an apt_mirror given the cloud and cfg provided."""
mirror = None
# this is less preferred way of specifying mirror preferred would be to
# use the distro's search or package_mirror.
mirror = cfg.get("apt_mirror", None)
search = cfg.get("apt_mirror_search", None)
if not mirror and search:
mirror = util.search_for_mirror(search)
if (not mirror and
util.get_cfg_option_bool(cfg, "apt_mirror_search_dns", False)):
mydom = ""
doms = []
# if we have a fqdn, then search its domain portion first
(_hostname, fqdn) = util.get_hostname_fqdn(cfg, cloud)
mydom = ".".join(fqdn.split(".")[1:])
if mydom:
doms.append(".%s" % mydom)
doms.extend((".localdomain", "",))
mirror_list = []
distro = cloud.distro.name
mirrorfmt = "http://%s-mirror%s/%s" % (distro, "%s", distro)
for post in doms:
mirror_list.append(mirrorfmt % (post))
mirror = util.search_for_mirror(mirror_list)
mirror_info = cloud.datasource.get_package_mirror_info()
# this is a bit strange.
# if mirror is set, then one of the legacy options above set it
# but they do not cover security. so we need to get that from
# get_package_mirror_info
if mirror:
mirror_info.update({'primary': mirror})
return mirror_info
def get_mirror(cfg, mirrortype, arch, cloud):
"""pass the three potential stages of mirror specification
returns None is neither of them found anything otherwise the first
hit is returned"""
mcfg = get_arch_mirrorconfig(cfg, mirrortype, arch)
if mcfg is None:
return None
# directly specified
mirror = mcfg.get("uri", None)
# fallback to search if specified
if mirror is None:
# list of mirrors to try to resolve
mirror = util.search_for_mirror(mcfg.get("search", None))
# fallback to search_dns if specified
if mirror is None:
# list of mirrors to try to resolve
mirror = search_for_mirror_dns(mcfg.get("search_dns", None),
mirrortype, cfg, cloud)
return mirror
