Docker Compose 基本使用

dockercompose v3官网文档:    

dockercompose中文: 

 

借鉴:

 

mode replicated

mode: global   默认是服务器负载均衡自己分配

mode: replicated  
replicas: 6   // 自己定义的台数

deploy:
    mode: global
     
deploy:
    mode: replicated
    replicas: 6

 

placement

约束, 服务运行在哪个主机上面

node attribute	matches	example
node.id	node id	node.id==2ivku8v2gvtg4
node.hostname	node hostname	node.hostname!=node-2
node.role	node role	node.role==manager
node.labels	user defined node labels	node.labels.security==high
engine.labels	docker engine's labels	engine.labels.operatingsystem==ubuntu 14.04

placement:
      constraints:
        - node.role == manager
        - engine.labels.operatingsystem == ubuntu 14.04

 

resources

限制硬件信息

 

resources:
      limits:
        cpus: '0.50'
        memory: 50m
      reservations:
        cpus: '0.25'
        memory: 20m