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                    	<p>kong作为非java全家桶的一员，在非java领域的网关系统中得到了广泛的应用</p>

使用docker一键启动kong

参考项目：https://github.com/Kong/docker-kong/tree/master/compose

启动过程如下：

git clone https://github.com/Kong/docker-kong.git
cd docker-kong/compose
docker-compose up -d

查看操作效果：

可以看到kong监控了4个端口

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              <h1>lua开发注意事项</h1>
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                    	<p>lua中目前只有false和nil是假，空table，空字符串，0是真<br/>

image-20180604144329529

false转为数字为nil
image-20180604144254531

字符串连接符：..
image-20180604144422758

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              <h1>灰度发布</h1>
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                    	<pre><code class="language-sql">CREATE TABLE `gray` (

id int(10) unsigned NOT NULL AUTO_INCREMENT,
project varchar(45) NOT NULL,
shopId text,
status tinyint(1) unsigned NOT NULL DEFAULT '1',
created_at timestamp NULL DEFAULT NULL,
updated_at timestamp NULL DEFAULT NULL,
PRIMARY KEY (id)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8mb4;

INSERT INTO `cpx_prod`.`gray` (`id`, `project`, `shopId`, `status`, `created_at`, `updated_at`) VALUES ('2', 'kufang', '1804', '1', '2018-05-28 17:04:25', '2018-05-28 17:04:25');

灰度开发方案

  1. 设计灰度表结构和存储位置
  2. 设计redis键，选择灰度发布使用的redis服务器
  3. 在ops平台上开发店铺灰度灰度状态管理页面
  4. 使用ops现有的指定发布功能发布灰度代码
  5. nginx lua根据店铺的灰度状态走不同的项目路径

灰度缓存更新

  1. ops灰度系统设置了店铺灰度后更新灰度缓存
  2. lua检测到redis里没有缓存key，从mysql中读取店铺灰度数据，缓存到redis中，redis使用一个key保存所有灰度店铺的id，使用json序列化

灰度代码发布

  1. 灰度代码发布复用ops上的指定发布
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