def _resolve_cell_from_dns(self, cellname):
"""Resolve Zookeeper connection string from DNS."""
if not self.dns_domain:
_LOGGER.warn('DNS domain is not set.')
zkurl_rec = dnsutils.txt('zk.%s' % (cellname))
else:
zkurl_rec = dnsutils.txt('zk.%s.%s' % (cellname, self.dns_domain))
if zkurl_rec:
self.cell = cellname
self.zk.url = zkurl_rec[0]
return bool(self.zk.url)
def _zk_url(ctx):
"""Resolve Zookeeper connection string from DNS."""
if not ctx.dns_domain:
_LOGGER.warning('DNS domain is not set.')
zkurl_rec = dnsutils.txt('zk.%s' % (ctx.cell), ctx.dns_server)
else:
zkurl_rec = dnsutils.txt('zk.%s.%s' % (ctx.cell, ctx.dns_domain),
ctx.dns_server)
if zkurl_rec:
return zkurl_rec[0]
else:
return None
def _tktfwd_spn(dns_domain):
"""Return tktfwd SPN for given dns domain."""
tktfwd_rec = dnsutils.txt('tktfwd.%s' % (dns_domain),
context.GLOBAL.dns_server)
if tktfwd_rec:
return tktfwd_rec[0]
else:
return None