Python CloudHost.instance_id方法代码示例

# 需要导入模块: from cloud.aws import CloudHost [as 别名]
# 或者: from cloud.aws.CloudHost import instance_id [as 别名]
def is_cluster_leader():
    if not CloudHost.ENABLED['cloudwatch']:
        return False

    cluster = CloudHost.INSTALL_ID
    instances = CloudHost.get_autoscaled_instances()
    leader = JBoxDynConfig.get_cluster_leader(cluster)
    ami_recentness = CloudHost.get_ami_recentness()
    JBoxDB.log_debug("cluster: %s. instances: %s. leader: %s. ami_recentness: %d",
                     cluster, repr(instances), repr(leader), ami_recentness)

    # if none set, or set instance is dead elect self as leader, but wait till next cycle to prevent conflicts
    if (leader is None) or (leader not in instances) and (ami_recentness >= 0):
        JBoxDB.log_info("setting self (%s) as cluster leader", CloudHost.instance_id())
        JBoxDynConfig.set_cluster_leader(cluster, CloudHost.instance_id())
        return False

    is_leader = (leader == CloudHost.instance_id())

    # if running an older ami, step down from cluster leader
    if (ami_recentness < 0) and is_leader:
        JBoxDB.log_info("unmarking self (%s) as cluster leader", CloudHost.instance_id())
        JBoxDynConfig.unset_cluster_leader(cluster)
        return False

    return is_leader

# 需要导入模块: from cloud.aws import CloudHost [as 别名]
# 或者: from cloud.aws.CloudHost import instance_id [as 别名]
def is_proposed_cluster_leader():
    if not CloudHost.ENABLED['cloudwatch']:
        return False

    cluster = CloudHost.INSTALL_ID
    leader = JBoxDynConfig.get_cluster_leader(cluster)
    return leader == CloudHost.instance_id()

# 需要导入模块: from cloud.aws import CloudHost [as 别名]
# 或者: from cloud.aws.CloudHost import instance_id [as 别名]
    def try_launch_container(cls, user_id, max_hop=False):
        sessname = unique_sessname(user_id)
        cont = JBoxContainer.get_by_name(sessname)
        cls.log_debug("have existing container for %s: %r", sessname, None != cont)
        if cont is not None:
            cls.log_debug("container running: %r", cont.is_running())

        if max_hop:
            self_load = CloudHost.get_instance_stats(CloudHost.instance_id(), 'Load')
            if self_load < 100:
                JBoxContainer.async_launch_by_name(sessname, user_id, True)
                return True

        is_leader = is_proposed_cluster_leader()
        if ((cont is None) or (not cont.is_running())) and (not CloudHost.should_accept_session(is_leader)):
            if cont is not None:
                cont.async_backup_and_cleanup()
            return False

        JBoxContainer.async_launch_by_name(sessname, user_id, True)
        return True

# 需要导入模块: from cloud.aws import CloudHost [as 别名]
# 或者: from cloud.aws.CloudHost import instance_id [as 别名]
 def set_lb_tracker_cookie(self):
     self.set_cookie('lb', signstr(CloudHost.instance_id(), self.config('sesskey')), expires_days=30)