Docker集群实验环境布署--swarm【4 管理组件--manager】

2022-03-29 10:48:43

主机分配如下，支持双活，中断其中1台，primary会通过consul自动重新选举

10.40.100.141 docker-manager0.venic.com

10.40.100.142 docker-manager1.venic.com

首先在镜像服务器上148上，拉取一个官网的 consul镜像，方便等下在其它三台上快速启动

# docker pull swarm && docker tag swarm:latest docker-registry.venic.com:5000/swarm:latest

# docker push docker-registry.venic.com:5000/swarm:latest

10.40.100.141上

docker run -d -p 4000:4000 --restart=always --name manager0 docker-registry.venic.com:5000/swarm:latest manage -H :4000 --replication --advertise 10.40.100.141:4000 consul://docker-consul.venic.com:8500

10.40.100.142上

docker run -d -p 4000:4000 --restart=always --name manager1 docker-registry.venic.com:5000/swarm:latest manage -H :4000 --replication --advertise 10.40.100.142:4000 consul://docker-consul.venic.com:8500

在2台机器上执行查看状态，可以看到选举了谁做主

[root@docker-manager0 /]# docker -H :4000 info

Containers: 0

Running: 0

Paused: 0

Stopped: 0

Images: 0

Server Version: swarm/1.2.5

Role: primary

Strategy: spread

Filters: health, port, containerslots, dependency, affinity, constraint

Nodes: 0

Plugins:

Volume:

Network:

Swarm:

NodeID:

Is Manager: false

Node Address:

Security Options:

Kernel Version: 3.10.0-514.2.2.el7.x86_64

Operating System: linux

Architecture: amd64

CPUs: 0

Total Memory: 0 B

Name: 27fbbfe0fae4

Docker Root Dir:

Debug Mode (client): false

Debug Mode (server): false

WARNING: No kernel memory limit support

[root@docker-manager1 /]# docker -H :4000 info