def _assign_host_tunnel_addr(ipip_pools):
"""
Claims an IPIP-enabled IP address from the first pool with some
space.
Stores the result in the host's config as its tunnel address.
Exits on failure.
:param ipip_pools: List of IPPools to search for an address.
"""
for ipip_pool in ipip_pools:
v4_addrs, _ = client.auto_assign_ips(
num_v4=1, num_v6=0,
handle_id=None,
attributes={},
pool=(ipip_pool, None),
host=hostname
)
if v4_addrs:
# Successfully allocated an address. Unpack the list.
[ip_addr] = v4_addrs
break
else:
# Failed to allocate an address, the pools must be full.
print_paragraph(
"Failed to allocate an IP address from an IPIP-enabled pool "
"for the host's IPIP tunnel device. Pools are likely "
"exhausted."
)
sys.exit(1)
# If we get here, we've allocated a new IPIP-enabled address,
# Store it in etcd so that Felix will pick it up.
client.set_per_host_config(hostname, "IpInIpTunnelAddr",
str(ip_addr))
def _assign_host_tunnel_addr(ipip_pools):
"""
Claims an IPIP-enabled IP address from the first pool with some
space.
Stores the result in the host's config as its tunnel address.
Exits on failure.
:param ipip_pools: List of IPPools to search for an address.
"""
for ipip_pool in ipip_pools:
v4_addrs, _ = client.auto_assign_ips(num_v4=1,
num_v6=0,
handle_id=None,
attributes={},
pool=(ipip_pool, None),
host=hostname)
if v4_addrs:
# Successfully allocated an address. Unpack the list.
[ip_addr] = v4_addrs
break
else:
# Failed to allocate an address, the pools must be full.
print_paragraph(
"Failed to allocate an IP address from an IPIP-enabled pool "
"for the host's IPIP tunnel device. Pools are likely "
"exhausted.")
sys.exit(1)
# If we get here, we've allocated a new IPIP-enabled address,
# Store it in etcd so that Felix will pick it up.
client.set_per_host_config(hostname, "IpInIpTunnelAddr", str(ip_addr))
def assign_any(v4_count, v6_count, pool=(None, None)):
"""
Reserve <count> IP(s) from the datastore to be applied to a container
:param arguments: v4_count = Count of IPv4 addresses
v6_count = Count of IPv6 addresses
pool = tuple(<IPv4 cidr>, <IPv6 cidr>)
:return: tuple(list(IPv4 IPAddresses), list(IPv6 IPAddresses))
"""
v4_list, v6_list = client.auto_assign_ips(v4_count, v6_count, None, {},
pool=pool)
if not any((v4_list, v6_list)):
sys.exit("Failed to allocate any IPs (requested {0} IPv4s and {1} IPv6s). "
"Pools are likely exhausted.".format(v4_count, v6_count))
return (v4_list, v6_list)
def assign_any(v4_count, v6_count, pool=(None, None)):
"""
Reserve <count> IP(s) from the datastore to be applied to a container
:param arguments: v4_count = Count of IPv4 addresses
v6_count = Count of IPv6 addresses
pool = tuple(<IPv4 cidr>, <IPv6 cidr>)
:return: tuple(list(IPv4 IPAddresses), list(IPv6 IPAddresses))
"""
v4_list, v6_list = client.auto_assign_ips(v4_count,
v6_count,
None, {},
pool=pool)
if not any((v4_list, v6_list)):
sys.exit(
"Failed to allocate any IPs (requested {0} IPv4s and {1} IPv6s). "
"Pools are likely exhausted.".format(v4_count, v6_count))
return (v4_list, v6_list)
