主服务器：192.168.0.105 // 也是私有仓库服务器
服务器2： 192.168.0.49

docker swarm init

docker swarm join --token SWMTKN-1-425vswwmb8o34uhnmo58w0k4rfzs5okjtye7mokpqps1vl9ymq-0p6pr2gua7l8a6udb67tfndoo 192.168.0.105:2377

package main

import (
  "fmt"
  "log"
  "net/http"
  "os"
)

func main() {
  http.HandleFunc("/hi", func(w http.ResponseWriter, r *http.Request) {
    hostName, _ := os.Hostname()
    fmt.Fprintf(w, "HostName: %s", hostName)
  })

  log.Fatal(http.ListenAndServe(":8000", nil))
}

FROM golang

# Copy the current directory contents into the container
COPY . /go/src/github.com/lpxxn/godockerswarm/

WORKDIR /go/src/github.com/lpxxn/godockerswarm/

RUN go build

EXPOSE 8000

CMD ["./godockerswarm"]

docker build . -t goweb:1.0

docker run -p 8100:8000 7a7e3

docker tag goweb:1.0 lpxxn.com:5000/goweb:1.0

docker push lpxxn.com:5000/goweb:1.0

version: "3"
services:
 web:
  image: lpxxn.com:5000/goweb:1.0
  deploy:
   replicas: 5
   resources:
    limits: 
     cpus: "0.1"
     memory: 50M
   restart_policy:
    condition: on-failure
  ports:
   - "8111:8000"
  networks: 
   - gowebnet
networks: 
 gowebnet:

docker stack deploy -c docker-compose.yml mygoweb

docker service ps mygoweb