创建命令：

[root@controller ~]# ceilometer alarm-threshold-create --name test --description 'test' --meter-name cpu_util --threshold 10.0 --comparison-operator gt --statistic avg --period 100 --evaluation-periods 3 --alarm-action 'log://' --query resource_id=03d9ccd4-cf42-4dbe-b391-469e086cfc83

参数解析：

ceilometer alarm-threshold-create
--name test #告警名字
--description 'test' #描述
--meter-name cpu_util #测量值名称（监控的项目）
--threshold 10.0 #阈值
--comparison-operator gt #比对方式：大于
--statistic avg #统计方式：平均值
--period 100 #周期：100秒
--evaluation-periods 3 周期内统计次数：3
--alarm-action 'log://' #转为告警状态时提交的url
--query resource_id=insecure_id #资源ID；云主机ID

告警列表：

[root@controller ~]# ceilometer alarm-list 
+--------------------------------------+----------+-------------------+----------+---------+------------+---------------------------------------+------------------+
| Alarm ID                             | Name     | State             | Severity | Enabled | Continuous | Alarm condition                       | Time constraints |
+--------------------------------------+----------+-------------------+----------+---------+------------+---------------------------------------+------------------+
| 5017937d-a813-4847-9542-cf1d4d834e2b | mem_test | insufficient data | low      | True    | False      | avg(memory) > 4096.0 during 10 x 100s | None             |
| 671606f1-d49c-4413-8697-ca5444ea00dd | test     | insufficient data | low      | True    | False      | avg(cpu_util) > 10.0 during 3 x 100s  | None             |
+--------------------------------------+----------+-------------------+----------+---------+------------+---------------------------------------+------------------+

附：

[root@controller ~]# ceilometer alarm-threshold-create  
usage: ceilometer alarm-threshold-create --name <NAME>
                                         [--project-id <ALARM_PROJECT_ID>]
                                         [--user-id <ALARM_USER_ID>]
                                         [--description <DESCRIPTION>]
                                         [--state <STATE>]
                                         [--severity <SEVERITY>]
                                         [--enabled {True|False}]
                                         [--alarm-action <Webhook URL>]
                                         [--ok-action <Webhook URL>]
                                         [--insufficient-data-action <Webhook URL>]
                                         [--time-constraint <Time Constraint>]
                                         [--repeat-actions {True|False}] -m
                                         <METRIC> [--period <PERIOD>]
                                         [--evaluation-periods <COUNT>]
                                         [--statistic <STATISTIC>]
                                         [--comparison-operator <OPERATOR>]
                                         --threshold <THRESHOLD> [-q <QUERY>]
ceilometer alarm-threshold-create: error: argument --name is required