Viewing file:  hostspec.py (1.98 KB) -rw-r--r--
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try:
from typing import Optional, List, Any
except ImportError:
pass # just for type checking
class HostSpec(object):
"""
Information about hosts. Like e.g. ``kubectl get nodes``
"""
def __init__(self,
hostname, # type: str
addr=None, # type: Optional[str]
labels=None, # type: Optional[List[str]]
status=None, # type: Optional[str]
):
self.service_type = 'host'
#: the bare hostname on the host. Not the FQDN.
self.hostname = hostname # type: str
#: DNS name or IP address to reach it
self.addr = addr or hostname # type: str
#: label(s), if any
self.labels = labels or [] # type: List[str]
#: human readable status
self.status = status or '' # type: str
def to_json(self):
return {
'hostname': self.hostname,
'addr': self.addr,
'labels': self.labels,
'status': self.status,
}
@classmethod
def from_json(cls, host_spec):
_cls = cls(host_spec['hostname'],
host_spec['addr'] if 'addr' in host_spec else None,
host_spec['labels'] if 'labels' in host_spec else None)
return _cls
def __repr__(self):
args = [self.hostname] # type: List[Any]
if self.addr is not None:
args.append(self.addr)
if self.labels:
args.append(self.labels)
if self.status:
args.append(self.status)
return "HostSpec({})".format(', '.join(map(repr, args)))
def __str__(self):
if self.hostname != self.addr:
return f'{self.hostname} ({self.addr})'
return self.hostname
def __eq__(self, other):
# Let's omit `status` for the moment, as it is still the very same host.
return self.hostname == other.hostname and \
self.addr == other.addr and \
self.labels == other.labels
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