def __configure(self, config_str):
"""
This setups up the base manager configuration by combining
the global configuration and config_str into a single configuration.
"""
self.zk_conn.clear_watch_fn(self.update_config)
global_config = self.zk_conn.watch_contents(paths.config(), self.update_config)
# Load our given configuration.
base_config = ManagerConfig(config_str)
if global_config:
base_config.reload(global_config)
# NOTE: We may have multiple global IPs (especially in the case of
# provisioning a cluster that could have floating IPs that move around.
# We read in each of the configuration blocks in turn, and hope that
# they are not somehow mutually incompatible.
configured_ips = None
if self.names:
def load_ip_config(ip):
# Reload our local config.
local_config = self.zk_conn.watch_contents(
paths.manager_config(ip),
self.update_config)
if local_config:
base_config.reload(local_config)
# Read all configured IPs.
for ip in self.names:
load_ip_config(ip)
configured_ips = base_config.ips()
for ip in configured_ips:
load_ip_config(ip)
return base_config
def get_config(self):
return self.zk_conn.read(paths.config())
def update_config(self, config):
self.zk_conn.write(paths.config(), config)