docker 官方文档（四）swarm

一、安装docker machine

$ base=http://github.com/docker/machine/releases/download/v0.14.0 &&
  curl -L $base/docker-machine-$(uname -s)-$(uname -m) >/tmp/docker-machine &&
  sudo install /tmp/docker-machine /usr/local/bin/docker-machine

　　备注：官网上的地址是https，但是下载过程中出现：

Fail connect to github-production-release-asset-2e65be.s3.amazonaws.com:443

可以将https变为http便可下载成功。

二、安装Oracle VirtualBox 

sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian/dists xenial contrib" >> /etc/apt/sources.list.d/virtualbox.list'

wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -

sudo apt update

sudo apt install virtualbox-5.2

　　注意官网中的地址已经变为增加/dists。在vm中运行virtualBox会出现问题，可以直接在windows中运行

三、建立一组虚拟机用docker-machine命令

docker-machine create --driver virtualbox dev
docker-machine create --driver virtualbox myvm2

　　显示创建的vms和他们的ip

docker-machine ls

　　将一个vm设置为manager,系统会自动生成docker swarm join --tokern的信息，将该信息发送给myvm2，将myvm2设置为worker

docker-machine ssh dev "docker swarm init --advertise-addr 192.168.99.101

　　另一个设置为worker：

docker-machine ssh myvm2 "docker swarm join --token SWMTKN-1-20rqpsrv3i7m13crnu8zfgkha7lclp1px35ej2lan6xju71by3-ehspi
jmkd13ibutp3abfpatqq 192.168.99.101:2377"

　　在manger中查看节点信息

docker-machine ssh dev "docker node ls"

　　

四、部署应用在建立的swarm集群上

到目前为止，您已经将Docker命令包装在docker-machine ssh与VM通信中。另一种选择是运行docker-machine env <machine>以获取并运行一个命令，该命令将当前shell配置为与VM上的Docker守护程序通信。此方法适用于下一步，因为它允许您使用本地docker-compose.yml文件“远程”部署应用程序，而无需将其复制到任何位置。

docker-machine env dev

　　复制出现的命令并执行：

eval $("H:\Docker Toolbox\docker-machine.exe" env dev)

　　检查是否设置成功：

docker-machine ls

　　dev的active选项编为*，代表已经将dev的守护进程设置为默认守护进程。

向第三部分一样部署项目并查看

docker stack deploy -c docker-compose.yml getstartedlab

　　

 docker stack ps getstartedlab

　　可以看到应用已经自动部署到了dev和myvm2上面。

你可以从IP地址来访问你的应用程序要么dev或myvm2。

您创建的网络在它们之间共享并进行负载平衡。运行 docker-machine ls以获取VM的IP地址，并在浏览器上访问其中任何一个，点击刷新（或只是curl它们）。

 

 

docker-machine create --driver virtualbox myvm1 # Create a VM (Mac, Win7, Linux)
docker-machine create -d hyperv --hyperv-virtual-switch "myswitch" myvm1 # Win10
docker-machine env myvm1                # View basic information about your node
docker-machine ssh myvm1 "docker node ls"         # List the nodes in your swarm
docker-machine ssh myvm1 "docker node inspect <node ID>"        # Inspect a node
docker-machine ssh myvm1 "docker swarm join-token -q worker"   # View join token
docker-machine ssh myvm1   # Open an SSH session with the VM; type "exit" to end
docker node ls                # View nodes in swarm (while logged on to manager)
docker-machine ssh myvm2 "docker swarm leave"  # Make the worker leave the swarm
docker-machine ssh myvm1 "docker swarm leave -f" # Make master leave, kill swarm
docker-machine ls # list VMs, asterisk shows which VM this shell is talking to
docker-machine start myvm1            # Start a VM that is currently not running
docker-machine env myvm1      # show environment variables and command for myvm1
eval $(docker-machine env myvm1)         # Mac command to connect shell to myvm1
& "C:\Program Files\Docker\Docker\Resources\bin\docker-machine.exe" env myvm1 | Invoke-Expression   # Windows command to connect shell to myvm1
docker stack deploy -c <file> <app>  # Deploy an app; command shell must be set to talk to manager (myvm1), uses local Compose file
docker-machine scp docker-compose.yml myvm1:~ # Copy file to node's home dir (only required if you use ssh to connect to manager and deploy the app)
docker-machine ssh myvm1 "docker stack deploy -c <file> <app>"   # Deploy an app using ssh (you must have first copied the Compose file to myvm1)
eval $(docker-machine env -u)     # Disconnect shell from VMs, use native docker
docker-machine stop $(docker-machine ls -q)               # Stop all running VMs
docker-machine rm $(docker-machine ls -q) # Delete all VMs and their disk images