在配置文件中定义rabbitmq策略

Question

我想默认为我的所有队列定义镜像.rabbitmqctl一旦节点启动,我目前必须使用:

rabbitmqctl set_policy ha-all "" '{"ha-mode":"all"}'

如果我的一个节点发生故障,我必须记得在重启时重新执行该代码.

有没有办法自动配置我的节点使用镜像队列？

Answer 1

策略可以在定义文件中指定,可以从配置文件中引用.

我如何设置特定策略的示例(不确定是否可以在策略中指定ha):

/etc/rabbitmq/rabbitmq.config

[
{rabbit,
    [{vm_memory_high_watermark, 0.8}]
},
{rabbitmq_management,
    [{listener, [{port, 15672}]},
     {load_definitions, "/etc/rabbitmq/rabbitmq_definitions.json"},
     {http_log_dir, "/var/log/rabbitmq/management_http.log"}]
}
].

/etc/rabbitmq/rabbitmq_definitions.json

{       "users":[
            {"name":"rabbot","password_hash":"Cvse5iGOg20UqUq7Za9D1tatOJnMVDru4GHtxqc02g7zj5ur","tags":""},
            {"name":"rabnet","password_hash":"CqqG2fwvH6xz64NpibGJx2M7ZCyFnR1BQBM+C0KH2qRPmVxF","tags":"administrator"}],
    "vhosts":[
            {"name":"/"}],
    "permissions":[
            {"user":"viabot","vhost":"VIA","configure":".*","write":".*","read":".*"},
            {"user":"vianet","vhost":"VIA","configure":".*","write":".*","read":".*"}],
    "parameters":[],
    "policies":[
            {"vhost":"VIA","name":"DLX","pattern":".*","apply-to":"queues","definition":{"dead-letter-exchange":"dead_letter"},"priority":0}
            ],
    "queues":[
            {"name":"store_to_es","vhost":"VIA","durable":true,"auto_delete":false,"arguments":{}},
            {"name":"store_to_mongodb","vhost":"VIA","durable":true,"auto_delete":false,"arguments":{}}
            ],
    "exchanges":[
            {"name":"data_incoming","vhost":"VIA","type":"fanout","durable":true,"auto_delete":false,"internal":false,"arguments":{}},
            {"name":"sms_incoming","vhost":"VIA","type":"fanout","durable":true,"auto_delete":false,"internal":false,"arguments":{}}
            ],
    "bindings":[
            {"source":"data_incoming","vhost":"VIA","destination":"store_to_es","destination_type":"queue","routing_key":"","arguments":{}},
            {"source":"sms_incoming","vhost":"VIA","destination":"store_to_mongodb","destination_type":"queue","routing_key":"","arguments":{}}
    ]
}

我正在共享这个配置文件和定义文件,因为无法从RabbitMQ网站上找到它.

注意:此配置适用于在Ubuntu 14.04上运行的RabbitMQ 3.6.1  

Answer 2

我搜索了同样的东西，发现了这个问题。要将更多详细信息添加到IvanD的答案中，这是我的方法：

第一：（sudo nano /etc/rabbitmq/rabbitmq.config此命令可能因您的操作系统而异）

[
  {rabbit,
    [
        {default_vhost,<<"/">>},
        {default_user,<<"someuser">>},
        {default_pass,<<"somepassword">>},
        {default_permissions, [<<".*">>, <<".*">>, <<".*">>]},
        {default_user_tags, [administrator]}
    ]
  },
  {rabbitmq_management,
    [{listener, [{port, 15672}]},
        {load_definitions, "/etc/rabbitmq/rabbitmq_definitions.json"},
        {http_log_dir, "/var/log/rabbitmq/management_http.log"}]
  }
].

然后创建附加的json ：（sudo nano /etc/rabbitmq/rabbitmq_definitions.json此命令可能会因您的操作系统而有所不同），它的内容是：

{
  "vhosts":[
        {"name":"/"}
  ],
  "policies":[
        {"vhost":"/","name":"ha","pattern":"", "definition":{"ha-mode":"all","ha-sync-mode":"automatic","ha-sync-batch-size":5}}
  ]
}

重要说明：仅在3.6.0以上的Rabbitmq版本中支持ha-sync-batch-size！https://www.rabbitmq.com/ha.html#sync-batch-size 如果您的兔子比那年大，请从中删除设置rabbitmq_definitions.json。

我正在使用ubuntu 14.04 Trusty和Rabbitmq v.3.6.2。

Answer 3

是的，您可以在加载时使用定义导入直接在重新启动时加载策略、队列、交换、绑定、用户等。

1. 预先配置你的兔子

   转到http://localhost:15672Admin -> Policies 页面并创建您需要的新策略：

   

   您还可以预先配置队列和其他东西。

2. 转储定义

   curl -s -H "Accept:application/json" -u guest:guest http://localhost:15672/api/definitions > definitions.json

   您还可以使用 Web 界面转储您的定义。打开概览选项卡，向下滚动：

   

   (!!!) Alter definitions.json，以便仅在重新启动时保留您需要的东西。

   将有关于您的政策的部分，请保留：

   ...
   "policies": [
     {
       "vhost": "/",
       "name": "ha-all",
       "pattern": "",
       "apply-to": "all",
       "definition": {
         "ha-mode": "all"
       },
       "priority": 0
     }
   ]
   ...
   

3. 重新启动时加载定义

   将其放在definitions.json您的兔子附近并将此行添加到rabbit.conf. 无需使用旧格式：

   management.load_definitions = /path/to/definitions.json
   

为了在重启后加载一些东西，使用cli tools。

向@IvanD 致敬，因为我的答案与他的答案几乎相同，但揭示了详细的步骤和新的配置格式用法。评论空间不足。

Answer 4

无法在rabbitmq.config文件中设置策略。一种解决方法是使用 init 脚本启动 rmq 并将rabbitmqctl命令放入其中，以便在 rmq 启动或重新启动时运行它。