78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
from charmhelpers.core.hookenv import (
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config,
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unit_get,
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)
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from charmhelpers.contrib.network.ip import (
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get_address_in_network,
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is_address_in_network,
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is_ipv6,
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get_ipv6_addr,
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)
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from charmhelpers.contrib.hahelpers.cluster import is_clustered
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PUBLIC = 'public'
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INTERNAL = 'int'
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ADMIN = 'admin'
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_ADDRESS_MAP = {
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PUBLIC: {
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'config': 'os-public-network',
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'fallback': 'public-address'
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},
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INTERNAL: {
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'config': 'os-internal-network',
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'fallback': 'private-address'
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},
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ADMIN: {
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'config': 'os-admin-network',
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'fallback': 'private-address'
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}
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}
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def canonical_url(endpoint_type=PUBLIC):
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'''
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Returns the correct HTTP URL to this host given the state of HTTPS
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configuration, hacluster and charm configuration.
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:endpoint_type str: The endpoint type to resolve.
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:returns str: Base URL for services on the current service unit.
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'''
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scheme = 'http'
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# if 'https' in configs.complete_contexts():
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# scheme = 'https'
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address = resolve_address(endpoint_type)
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if is_ipv6(address):
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address = "[{}]".format(address)
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return "{0}://{1}".format(scheme, address)
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def resolve_address(endpoint_type=PUBLIC):
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resolved_address = None
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if is_clustered():
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if config(_ADDRESS_MAP[endpoint_type]['config']) is None:
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# Assume vip is simple and pass back directly
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resolved_address = config('vip')
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else:
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for vip in config('vip').split():
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if is_address_in_network(
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config(_ADDRESS_MAP[endpoint_type]['config']),
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vip):
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resolved_address = vip
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else:
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if config('prefer-ipv6'):
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fallback_addr = get_ipv6_addr(exc_list=[config('vip')])[0]
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else:
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fallback_addr = unit_get(_ADDRESS_MAP[endpoint_type]['fallback'])
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resolved_address = get_address_in_network(
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config(_ADDRESS_MAP[endpoint_type]['config']), fallback_addr)
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if resolved_address is None:
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raise ValueError('Unable to resolve a suitable IP address'
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' based on charm state and configuration')
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else:
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return resolved_address
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