docker-Overlay原生网络

节点1/键值存储：192.168.50.130

节点2：192.168.50.131

1.下载Consul二进制包并启动

wget https://releases.hashicorp.com/consul/0.9.2/consul_0.9.2_linux_amd64.zip

 unzip consul_0.9.2_linux_amd64.zipmv consul /usr/bin/consul && chmod +x /usr/bin/consul

 nohup consul agent -server -bootstrap -ui -data-dir /var/lib/consul -client=192.168.50.130 -bind=192.168.50.130

&>/var/log/consul.log &

2.节点配置Docker守护进程连接Consul

vi /lib/systemd/system/docker.service

[Service]

ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store

consul://192.168.50.130:8500 --cluster-advertise 192.168.1.130:2375

 systemctl restart docker

3.创建overlay网络

 docker network create -d overlay multi_host

4.测试互通

 docker run -itd --net=multi_host busybox

节点B：192.168.50.131

1.启动docker：

Systemctl start docker

2.修改配置文件：vim /usr/lib/systemd/system/docker.service

-H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock --cluster-store consul:// 192.168.50.131:8500 --cluster-advertise 192.168.50.131:2375

systemctl daemon-reload && systemctl restart docker

就可以在consul ui上面看到新增加的节点了

3.创建overlay网络：

docker network create -d overlay multi_host（只要在一个节点创建，就会同步到其他节点，不需要在配置其他节点）

4.测试互通：

　　A B节点都启动一个容器

　　docker run -it --rm=true  --net=multi_host mydockerfile /bin/bash

ping overlay分配的网络

Normal
0

7.8 磅
0
2

false
false
false

EN-US
ZH-CN
X-NONE

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:普通表格;
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin-top:0cm;
mso-para-margin-right:0cm;
mso-para-margin-bottom:10.0pt;
mso-para-margin-left:0cm;
line-height:11.0pt;
mso-pagination:widow-orphan;
font-size:10.5pt;
mso-bidi-font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:宋体;
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}