def leader_config_changed(): ''' The leader executes the runtime configuration update for the cluster, as it is the controlling unit. Will render config, close and open ports and restart the etcd service.''' configuration = hookenv.config() previous_port = configuration.previous('port') log('Previous port: {0}'.format(previous_port)) previous_mgmt_port = configuration.previous('management_port') log('Previous management port: {0}'.format(previous_mgmt_port)) if previous_port and previous_mgmt_port: bag = EtcdDatabag() etcdctl = EtcdCtl() members = etcdctl.member_list() # Iterate over all the members in the list. for unit_name in members: # Grab the previous peer url and replace the management port. peer_urls = members[unit_name]['peer_urls'] log('Previous peer url: {0}'.format(peer_urls)) old_port = ':{0}'.format(previous_mgmt_port) new_port = ':{0}'.format(configuration.get('management_port')) url = peer_urls.replace(old_port, new_port) # Update the member's peer_urls with the new ports. log(etcdctl.member_update(members[unit_name]['unit_id'], url)) # Render just the leaders configuration with the new values. render_config() # Close the previous client port and open the new one. close_open_ports() address = get_ingress_address('cluster') leader_set({ 'leader_address': get_connection_string([address], bag.management_port) }) host.service_restart(bag.etcd_daemon)
def leader_config_changed(): ''' The leader executes the runtime configuration update for the cluster, as it is the controlling unit. Will render config, close and open ports and restart the etcd service.''' configuration = hookenv.config() previous_port = configuration.previous('port') log('Previous port: {0}'.format(previous_port)) previous_mgmt_port = configuration.previous('management_port') log('Previous management port: {0}'.format(previous_mgmt_port)) if previous_port and previous_mgmt_port: bag = EtcdDatabag() etcdctl = EtcdCtl() members = etcdctl.member_list() # Iterate over all the members in the list. for unit_name in members: # Grab the previous peer url and replace the management port. peer_urls = members[unit_name]['peer_urls'] log('Previous peer url: {0}'.format(peer_urls)) old_port = ':{0}'.format(previous_mgmt_port) new_port = ':{0}'.format(configuration.get('management_port')) url = peer_urls.replace(old_port, new_port) # Update the member's peer_urls with the new ports. log(etcdctl.member_update(members[unit_name]['unit_id'], url)) # Render just the leaders configuration with the new values. render('defaults', '/etc/default/etcd', bag.__dict__, owner='root', group='root') # Close the previous client port and open the new one. close_open_ports() leader_set({'leader_address': get_connection_string([bag.private_address], bag.management_port)}) host.service_restart('etcd')