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centos6-base's Introduction

试验阶段的CenotOS Docker基础配置

该Docker镜像

  • 配置了网易yum镜像库
  • 安装了wget vim jdk1.7 zsh git oh-my-szh等常用环境
  • 配置了JAVA_HOME
  • ssh免密互联,关闭了StrictHostKeyChecking,避免第一次连接时的确认提示

Build

公司环境虚拟机里面的docker默认配置不能上网,可以使用host网络模式 --network=host 编译的时候让container与虚拟机公用同一个网络环境
或者自建一个docker 网络, 下面使用自建名为hadoop的网络,之后的集群通信也基于该网络

docker network create --driver=bridge hadoop
docker build --network=host -t centos6-base .

Clone

也可以直接pull镜像

docker pull 43914423/centos6-base

启动多个容器并让容器互联,以便进行一些日常中常见的分布式系统验证

参考博客

之前的版本使用serf/dnsmasq为Hadoop集群提供DNS服务,由于Docker网络功能更新,现在并不需要了。更新的版本中,使用以下命令为Hadoop集群创建单独的网络:
docker network create --driver=bridge hadoop
然后在运行Hadoop容器时,使用”–net=hadoop”选项,这时所有容器将运行在hadoop网络中,它们可以通过容器名称进行通信。

使用示例

启动两个互联容器

docker run -d --name=c6-master --hostname=master -it --network=hadoop --privileged=true centos6-base
docker run -d --name=c6-slave1 --hostname=slave1 -it --network=hadoop --privileged=true centos6-base

# Attach to c6-master
docker attach c6-master
# ping c6-slave1 using container name
ping c6-slave1

cdh cluster build base on base image as below

image

elk cluster build base on base iamge as below

image

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