Docker service deployment across multi-hosts

Setup

• Install Docker

  sudo apt install docker
  

• Run Docker without sudo

  sudo groupadd docker
  sudo usermod -aG $USER
  

• Configure VMs
  在virtualbox使多台ubuntu虚拟机位于同一局域网
  VirtualBox实现内外网络互访问的配置
  主机不能访问虚拟机中的web服务的解决方案

Deployment

• Create Cluster

  # on manager node
  docker swarm init
  

  # on worker node
  # run "docker swarm join-token manager" to get $token and $IP
  # run below command on slave/worker node to join swarm
  docker swarm join --token $token $IP:2377
  

• Create Network

  docker network create -d overlay 
  

• Create Service

  docker service create --name  [--network ] --replicas  -p  
  

• Rollout

  docker service update --replicas 
  

  docker service update --image  
  

  docker service update --update-delay  --update-parallelism 
  

• Inspection

  docker service inspect --pretty s
  

• Test

  curl docker: