#安装docker-machine
cupid@ubuntu:~$ pwd
/home/cupid
cupid@ubuntu:~$ ls
Desktop  docker-machine-Linux-x86_64  Documents  Downloads  examples.desktop  Music  Pictures  Public  Templates  Videos
cupid@ubuntu:~$ mv docker-machine-Linux-x86_64  docker-machine
cupid@ubuntu:~$ chmod +x  docker-machine
cupid@ubuntu:~$ sudo scp docker-machine /usr/local/bin/docker-machine
cupid@ubuntu:~$ docker-machine  version  #安装成功
docker-machine version 0.12.2, build 9371605
##
cupid@ubuntu:~$ cd /etc/bash_completion.d/
cupid@ubuntu:/etc/bash_completion.d$ ls
apport_completion      git-prompt  insserv
desktop-file-validate  grub        libreoffice.sh
cupid@ubuntu:/etc/bash_completion.d$ vi docker-machine-prompt.bash
~
##添加被管理节点
1）生成ssh-key并拷贝到被管理节点
root@ubuntu:~# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
/root/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:vleIKvWOKKZLtgNiZOe2z1U13xuuYLXKReYq1/Z/O74 root@ubuntu
The key's randomart image is:
+---[RSA 2048]----+
|                 |
|                 |
|           o     |
| o .      . o .  |
|o o     So . = o |
|o. o  ..o . * o o|
|+o. .. +.  +.+ o |
|o.+.o.o..o+.=o...|
|o=..o+..o.o+..oEB|
+----[SHA256]-----+
root@ubuntu:~# ssh-copy-id 192.168.142.169
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.142.169's password: Number of key(s) added: 1Now try logging into the machine, with:   "ssh '192.168.142.169'"
and check to make sure that only the key(s) you wanted were added.root@ubuntu:~# ssh-copy-id 192.168.142.170
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
The authenticity of host '192.168.142.170 (192.168.142.170)' can't be established.
ECDSA key fingerprint is SHA256:nMYNsS3zGCBuh8jVYGG4XRieWfH0SvvAMIhz2O+bZKc.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.142.170's password: Number of key(s) added: 1Now try logging into the machine, with:   "ssh '192.168.142.170'"
and check to make sure that only the key(s) you wanted were added.
#无需输入密码可登陆169
root@ubuntu:~# ssh 192.168.142.169
Welcome to Ubuntu 16.04.2 LTS (GNU/Linux 4.10.0-28-generic x86_64)* Documentation:  https://help.ubuntu.com* Management:     https://landscape.canonical.com* Support:        https://ubuntu.com/advantage52 packages can be updated.
1 update is a security update.
2）添加被管理节点 因为是虚拟机，指定普通操作系统即可
root@ubuntu:~# docker-machine create --driver generic --generic-ip-address=192.168.142.169 host1
Creating CA: /root/.docker/machine/certs/ca.pem
Creating client certificate: /root/.docker/machine/certs/cert.pem
Running pre-create checks...
Creating machine...
(host1) No SSH key specified. Assuming an existing key at the default location.
Waiting for machine to be running, this may take a few minutes...
Detecting operating system of created instance...
Waiting for SSH to be available...
Detecting the provisioner...
Provisioning with ubuntu(systemd)...
Installing Docker...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Checking connection to Docker...
Docker is up and running!
To see how to connect your Docker Client to the Docker Engine running on this virtual machine, run: docker-machine env host1
#查看添加的主机
root@ubuntu:~# docker-machine ls
NAME    ACTIVE   DRIVER    STATE     URL                          SWARM   DOCKER        ERRORS
host1   -        generic   Running   tcp://192.168.142.169:2376           v17.06.0-ce   ~
~
3）如何管理节点的docker
[root@host1:~]#echo $PS1
[\u@\h:\w$(__docker_machine_ps1)]\$
[root@host1:~]#docker-machine ls
NAME    ACTIVE   DRIVER    STATE     URL                          SWARM   DOCKER        ERRORS
host1   -        generic   Running   tcp://192.168.142.169:2376           v17.06.0-ce
host2   -        generic   Running   tcp://192.168.142.170:2376           v17.06.0-ce
#查看连接到host1需要的环境变量
[root@host1:~]#docker-machine env host1
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.142.169:2376"
export DOCKER_CERT_PATH="/root/.docker/machine/machines/host1"
export DOCKER_MACHINE_NAME="host1"
# Run this command to configure your shell:
# eval $(docker-machine env host1)
#查看连接到host2需要的环境变量
[root@host1:~]#docker-machine env host2
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.142.170:2376"
export DOCKER_CERT_PATH="/root/.docker/machine/machines/host2"
export DOCKER_MACHINE_NAME="host2"
# Run this command to configure your shell:
# eval $(docker-machine env host2)
#eval此环境变量即可连接到host2的docker
[root@host1:~]#eval $(docker-machine env host2)[root@host1:~ [host2]]#docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS                         PORTS                    NAMES
87300fa502e3        busybox             "sh"                     About an hour ago   Exited (0) About an hour ago                            focused_cray
aea28d5d7030        busybox             "-it"                    About an hour ago   Created                                                 keen_noether
c9370139a79e        httpd               "httpd-foreground"       5 days ago          Exited (255) 2 hours ago       80/tcp                   quirky_hypatia
e5deab94f264        centos              "/bin/bash -c 'whi..."   5 days ago          Exited (255) 2 hours ago                                romantic_johnson
d19d1c95874f        registry:2          "/entrypoint.sh /e..."   5 days ago          Exited (255) 2 hours ago       0.0.0.0:5000->5000/tcp   hardcore_colden
~