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目录1、一台主机上部署zookeeper集群2、一台主机部署zookeeper集群分析3、Macvlan网络4、跨主机环境准备5、创建macvlan网络6、docker-compose.yml文件总结
1、一台主机上部署zookeeper集群
下面这个是官方给出的docker-compose的部署方案(这个是都在一台主机上部署的):
version: 3 services: zoo1: image: zookeeper restart: always ports: – 2182:2181 environment: ZOO_MY_ID: 1 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181 zoo2: image: zookeeper restart: always ports: – 2183:2181 environment: ZOO_MY_ID: 2 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181 zoo3: image: zookeeper restart: always ports: – 2184:2181 environment: ZOO_MY_ID: 3 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;21812、一台主机部署zookeeper集群分析
我们从上面的分析,最主要的就是ZOO_MY_ID和ZOO_SERVERS(更多环境变量配置参考:https://hub.docker.com/_/zookeeper)
ZOO_MY_ID:节点IDZOO_SERVERS:集群节点地址,多个节点之间使用空格隔开由此可以看出如果不在一个主机上,那么这几个容器之间就得是想通的,为了使其想通,我们运用了Macvlan网络
3、Macvlan网络
macvlan本身是linxu kernel的模块,本质上是一种网卡虚拟化技术。
其功能是允许在同一个物理网卡上虚拟出多个网卡,通过不同的MAC地址在数据链路层进行网络数据的转发,一块网卡上配置多个 MAC 地址(即多个 interface),每个interface可以配置自己的IP,Docker的macvlan网络实际上就是使用了Linux提供的macvlan驱动.在物理网络看来,每张虚拟网卡都是一个单独的接口。
4、跨主机环境准备
编号主机IP容器IP主机1192.168.1.18710.0.3.71主机2192.168.1.18810.0.3.72主机3192.168.1.18910.0.3.735、创建macvlan网络
主机1(主机2和主机3也做如下类似操作):
docker network create -d macvlan –subnet=10.0.3.0/24 –gateway=10.0.3.1 -o parent=em2 zookeeper-kafka-net subnet这里结尾最好是/24,代表255.255.255.0,如果是/16代表255.255.0.0,16这种据说在设置了iptable的情况下会出问题parent后是网卡名称192.168.1.187的网卡名称,可通过ipconfig查找最后的zookeeper-kafka-net是你创建的macvlan网络名称,可随意写
6、docker-compose.yml文件
主机1:
version: “3” services: zookeeper1: container_name: zookeeper1 image: zookeeper:3.6.2 networks: zookeeper-kafka-net: ipv4_address: 10.0.3.71 ports: – “22181:2181” – “22888:2888” – “23888:3888” environment: ZOO_MY_ID: 1 ZOO_SERVERS: server.1=10.0.3.71:2888:3888;2181 server.2=10.0.3.72:2888:3888;2181 server.3=10.0.3.73:2888:3888;2181 restart: always networks: zookeeper-kafka-net: external: name: zookeeper-kafka-net主机2:
version: “3” services: zookeeper2: container_name: zookeeper2 image: zookeeper:3.6.2 networks: zookeeper-kafka-net: ipv4_address: 10.0.3.72 ports: – “22181:2181” – “22888:2888” – “23888:3888” environment: ZOO_MY_ID: 2 ZOO_SERVERS: server.1=10.0.3.71:2888:3888;2181 server.2=10.0.3.72:2888:3888;2181 server.3=10.0.3.73:2888:3888;2181 restart: always networks: zookeeper-kafka-net: external: name: zookeeper-kafka-net主机3:
version: “3” services: zookeeper3: container_name: zookeeper3 image: zookeeper:3.6.2 networks: zookeeper-kafka-net: ipv4_address: 10.0.3.73 ports: – “22181:2181” – “22888:2888” – “23888:3888” environment: ZOO_MY_ID: 3 ZOO_SERVERS: server.1=10.0.3.71:2888:3888;2181 server.2=10.0.3.72:2888:3888;2181 server.3=10.0.3.73:2888:3888;2181 restart: always networks: zookeeper-kafka-net: external: name: zookeeper-kafka-net总结
以上为个人经验,希望能给大家一个参考,也希望大家多多支持。
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