gearman openresty 集成试用

很简单使用了一个openresty 的lua 模块

环境准备

• docker-compose 文件
  详细配置可以参考 https://github.com/rongfengliang/gearmangolang-docker

 

version: "3"

services:

  demo:

    image: artefactual/gearmand:latest 

    command: --queue-type=redis --redis-server=redis --redis-port=6379 --verbose=DEBUG

    ports:

    - "4731:4730"

  redis:

    image: redis

    ports:

    - "6379:6379"

  prometheus:

    image: prom/prometheus

    volumes:

    - "./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml"

    ports:

    - "9090:9090"

  app:

    image: appscode/gearmand:0.5.2

    command: run --v=3 --storage-dir=/my-dir --addr="0.0.0.0:4730"

    volumes:

    - "./db:/my-dir"

    ports:

    - "4730:4730"

    - "3000:3000"

  client:

    image: dalongrong/client-demo

    build:

     context: ./client

  worker:

    image: dalongrong/worker-demo

    build:

     context: ./worker

  nginx:

   build: 

     context: ./openresty

   ports:

   - "8080:80"

   volumes:

   - "./openresty/app/:/opt/app/"

   - "./openresty/nginx.conf:/usr/local/openresty/nginx/conf/nginx.conf"

  admin:

    image: dalongrong/admin-demo

    build:

     context: ./admin

​

 

 

• nginx 配置
  openresty/nignx.conf

 

worker_processes 1;

user root;  

events {

    worker_connections 1024;

}

http {

    include mime.types;

    default_type application/octet-stream;

    sendfile on;

    keepalive_timeout 65;

    lua_code_cache off;

    gzip on;

    resolver 127.0.0.11;          

    real_ip_header X-Forwarded-For;

    real_ip_recursive on;

    lua_package_path '/opt/app/?.lua;;';

    server {

        listen 80;

        server_name localhost;

        charset utf-8;

        root html;

        default_type text/html;

        location / {

           default_type text/html;

           index index.html;

​

        }

        location /upper {

           default_type text/plain;

           content_by_lua_block {

              require("upper/init")();

           }

        }

        error_page 500 502 503 504 /50x.html;

        location = /50x.html {

            root html;

        }

    }

}

 

 

• resty.gearman lua 调用代码

local gearman = require "resty.gearman"

local gm = gearman:new()

function init()

    gm:set_timeout(1000) -- 1 sec

    local ok, err = gm:connect("app", 4730)

    if not ok then

        ngx.say("failed to connect: ", err)

          return

    end

    ok, err = gm:submit_job("ToUpper", "dalong demo") 

            -- submit_job,submit_job_bg,submit_job_high,submit_job_high_bg,submit_job_low,submit_job_low_bg are supported

            -- submit_job(function_name, workload[, unique])

    if not ok then

        ngx.say("failed to submit job: ", err)

            return

    else

        ngx.say(ok)

    end

    -- put it into the connection pool of size 100,

            -- with 0 idle timeout

    -- local ok, err = gm:set_keepalive(0, 100)

    -- if not ok then

    -- ngx.say("failed to set keepalive: ", err)

    -- return

    -- end

​

            -- or just close the connection right away:

    local ok, err = gm:close()

        if not ok then

          ngx.say("failed to close: ", err)

          return

        end

end

​

return init;

 

 

• resty.gearman 模块配置
  使用dockerfile 指定的

 

FROM openresty/openresty:alpine-fat

LABEL author="[email protected]"

COPY app/lua-resty-gearman/lib/resty/gearman.lua /usr/local/openresty/lualib/resty/gearman.lua

 

启动&&测试

• 启动

docker-compose up  -d

 

• 效果
  http://localhost:8080/upper
  打开之后

 

DALONG DEMO

 

说明

当前这个resty 库，只实现了client 的功能，但总的来说集成起来还是很强大的

参考资料

https://github.com/rongfengliang/gearmangolang-docker
https://github.com/zhhchen/lua-resty-gearman