RocketMQ学习(一)：broker与namesrv镜像

    RocketMQ的部署主要是broker和namesrv，broker是MQ的消息中转角色，负责存储消息，转发消息，一般称为Server。在 JMS 规范中称为 Provider。namesrv是一个几乎无状态节点，接受broker的Topic信息注册，为 producer 和 consumer 提供路由信息。。

1、namesrv镜像

    1.1、创建Dockerfile文件

#当前用户
who
xusg pts/0 2018-02-02 17:33 (192.168.56.1)
#当前目录
pwd
/home/xusg/docker/rocketmq/namesrv
#创建Dockerfile文件
touch Dockerfile
#Dockerfile文件内容
#RocketMQ以来Java环境，因此基于Java镜像进行构建
#修改启动参数-Xms4g -Xmx4g -Xmn2g -XX:MetaspaceSize=128m -XX:MaxMetaspaceSize=320m为-Xms256m -Xmx256m -Xmn128m -XX:MetaspaceSize=64m -XX:MaxMetaspaceSize=128m，虚拟机内存较小
#9876：消息监听端口
FROM java:8
ENV ROCKETMQ_VERSION 4.2.0
ENV ROCKETMQ_HOME
/opt/rocketmq-${ROCKETMQ_VERSION}
ENV JAVA_OPT " -Duser.home=/opt"
WORKDIR
${ROCKETMQ_HOME}
RUN mkdir -p /opt/logs /opt/store
RUN curl https://dist.apache.org/repos/dist/release/rocketmq/${ROCKETMQ_VERSION}/rocketmq-all-${ROCKETMQ_VERSION}-bin-release.zip -o rocketmq.zip 
&& unzip rocketmq.zip 
&& rm rocketmq.zip 
&& cd ${ROCKETMQ_HOME}/bin 
&& sed -i 's#-Xms[0-9]+[gm]#-Xms256m#' runserver.sh 
&& sed -i 's#-Xmx[0-9]+[gm]#-Xmx256m#' runserver.sh 
&& sed -i 's#-Xmn[0-9]+[gm]#-Xmn128m#' runserver.sh 
&& sed -i 's#-XX:MetaspaceSize=[0-9]+[gm]#-XX:MetaspaceSize=64m#' runserver.sh 
&& sed -i 's#-XX:MaxMetaspaceSize=[0-9]+[gm]#-XX:MaxMetaspaceSize=128m#' runserver.sh 
&& chmod +x ./mqnamesrv
CMD cd ${ROCKETMQ_HOME}/bin && sh mqnamesrv
EXPOSE 9876
VOLUME ["/opt/logs", "/opt/store"]

    1.2、构建namesrv镜像

#进入Dockerfile文件所在目录
cd /home/xusg/docker/rocketmq/namesrv
#构建镜像
sudo docker build -t study/rocketmq-namesrv:4.2.0 .

2.3、查看namesrv镜像

#查看docker镜像列表
sudo docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
study/rocketmq-namesrv
4.2.0
b2b9f7c76c31
58 seconds ago
653 MB
java
8
d23bdf5b1b1b
12 months ago
643 MB
#查看study/rocketmq-namesrv镜像信息
sudo docker inspect study/rocketmq-namesrv:4.2.0

2、broker镜像

     2.1、创建Dockerfile文件

#当前用户
who
xusg pts/0 2018-02-02 17:33 (192.168.56.1)
#当前目录
pwd
/home/xusg/docker/rocketmq/broker
#创建Dockerfile文件
touch Dockerfile
#Dockerfile文件内容
#RocketMQ以来Java环境，因此基于Java镜像进行构建
#修改启动参数-Xms8g -Xmx8g -Xmn4g为-Xms256m -Xmx256m -Xmn128m，虚拟机内存较小
#10911：消息监听端口
#10912：主从同步端口
FROM java:8
ENV ROCKETMQ_VERSION 4.2.0
ENV ROCKETMQ_HOME
/opt/rocketmq-${ROCKETMQ_VERSION}
ENV JAVA_OPT " -Duser.home=/opt"
WORKDIR
${ROCKETMQ_HOME}
RUN mkdir -p /opt/logs /opt/store
RUN curl https://dist.apache.org/repos/dist/release/rocketmq/${ROCKETMQ_VERSION}/rocketmq-all-${ROCKETMQ_VERSION}-bin-release.zip -o rocketmq.zip 
&& unzip rocketmq.zip 
&& rm rocketmq.zip 
&& cd ${ROCKETMQ_HOME}/bin 
&& sed -i 's#-Xms[0-9]+[gm]#-Xms256m#' runbroker.sh 
&& sed -i 's#-Xmx[0-9]+[gm]#-Xmx256m#' runbroker.sh 
&& sed -i 's#-Xmn[0-9]+[gm]#-Xmn128m#' runbroker.sh 
&& chmod +x ./mqbroker
EXPOSE 10909 10911 10912
VOLUME ["/opt/logs", "/opt/store"]
CMD cd ${ROCKETMQ_HOME}/bin && sh mqbroker

    2.2、构建broker镜像

#进入Dockerfile文件所在目录
cd /home/xusg/docker/rocketmq/broker
#构建镜像
sudo docker build -t study/rocketmq-broker:4.2.0 .

    2.3、查看broker镜像

#查看docker镜像列表
sudo docker images
REPOSITORY
TAG
IMAGE ID
CREATED
SIZE
study/rocketmq-namesrv
4.2.0
b2b9f7c76c31
58 seconds ago
653 MB
study/rocketmq-broker
4.2.0
fcd6975639b1
36 seconds ago
653 MB
java
8
d23bdf5b1b1b
12 months ago
643 MB
#查看study/rocketmq-broker镜像信息
sudo docker inspect study/rocketmq-broker:4.2.0