docker swarm 集群部署

一、环境准备

二、基础环境配置（所有节点）

1、各节点根据节点配置表修改自己的主机名，并且把所有节点的信息添加到hosts文件

2、设置ssh从sw_Manager上免密登录其它节点

得到swManager密钥

ssh-keygen

出现后一直按回车就行

简历ssh远程连接

ssh-copy-id root@192.168.233.145

ssh-copy-id root@192.168.233.146

注：出现Are you sure you want to continue connecting (yes/no)? yes要弄yes

3、做好各主机的时间同步

4、关闭防火墙、关闭selinux

5、安装docker引擎

yum -y install docker-ce

6、修改docker镜像仓库地址

cat <<EOF >/etc/docker/daemon.json

{

"insecure-registries": ["192.168.5.24:5000"],

"registry-mirrors": [

"https://ccr.ccs.tencentyun.com",

"https://docker.rainbond.cc",

"https://elastic.m.daocloud.io",

"https://elastic.m.daocloud.io",

"https://docker.m.daocloud.io",

"https://gcr.m.daocloud.io",

"https://ghcr.m.daocloud.io",

"https://k8s-gcr.m.daocloud.io",

"https://k8s.m.daocloud.io",

"https://mcr.m.daocloud.io",

"https://nvcr.m.daocloud.io", "https://quay.m.daocloud.io"

]

}

注:这docker镜像仓库地址是学校老师弄得，自己实验时要自己找到docker镜像

7、设置docker引擎自启动

systemctl enable --now docker

三、配置集群

1、初始化swarm

docker swarm init --listen-addr 192.168.168.102:2377

Swarm initialized: current node

(bukhx2jux7w2a9smr6l3b5arh) is now a manager.

To add a worker to this swarm, run the following command:

docker swarm join --token SWMTKN-1-18g572b7yi84rm8vlu4nsz17amf7ncagmlvjegkdeofn2fb629-4kqmthlbw2dd2xkpxwitzp7qw 192.168.233.144:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

2、添加工作节点到swarm集群

[root@node1 ~]# docker swarm join --token SWMTKN-1-18g572b7yi84rm8vlu4nsz17amf7ncagmlvjegkdeofn2fb629-4kqmthlbw2dd2xkpxwitzp7qw 192.168.233.144:2377

This node joined a swarm as a worker.

[root@node2 ~]# docker swarm join --token SWMTKN-1-18g572b7yi84rm8vlu4nsz17amf7ncagmlvjegkdeofn2fb629-4kqmthlbw2dd2xkpxwitzp7qw 192.168.233.144:2377

This node joined a swarm as a worker.

3、查看集群节点列表

docker node ls

4、图形化查看集群

docker run -itd -p 8888:8080 -e HOST=192.168.168.102 -e PORT=8080 -v /var/run/docker.sock:/var/run/docker.sock --name visua 192.168.5.24:5000/visualizer

5、服务测试

docker service create --replicas 2 --mount "type=bind,source=/html,target=/var/www/html" --publish 8080:80 --name httpservice 192.168.5.24:5000/centos-httpd:v1

注:若原路径不存在，则在根目录底下创建一个目录\html