Docker Demo on Docker

install docker-machine

$ curl -L https://github.com/docker/machine/releases/download/v0.10.0/docker-machine-`uname -s`-`uname -m` >/tmp/docker-machine &&
  chmod +x /tmp/docker-machine &&
  sudo cp /tmp/docker-machine /usr/local/bin/docker-machine

create manager & worker

$  docker-machine create --driver virtualbox manager
Running pre-create checks...
Creating machine...
(manager) Copying /Users/victoria/.docker/machine/cache/boot2docker.iso to /Users/victoria/.docker/machine/machines/manager/boot2docker.iso...
(manager) Creating VirtualBox VM...
(manager) Creating SSH key...
(manager) Starting the VM...
(manager) Check network to re-create if needed...
(manager) Waiting for an IP...
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 boot2docker...
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 manager

Verify machines are running and get IP addresses

$ docker-machine ls
NAME       ACTIVE   DRIVER       STATE     URL                         SWARM   DOCKER        ERRORS
manager   *        virtualbox   Running   tcp://192.168.99.100:2376           v17.03.0-ce
worker    -        virtualbox   Running   tcp://192.168.99.101:2376           v17.03.0-ce

MANAGE THE MACHINES FROM A PRE-CONFIGURED SHELL

$ docker-machine env manager
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.99.100:2376"
export DOCKER_CERT_PATH="/Users/victoriabialas/.docker/machine/machines/manager"
export DOCKER_MACHINE_NAME="manager"
export DOCKER_API_VERSION="1.25"
# Run this command to configure your shell:
# eval $(docker-machine env manager)

SSH INTO A MACHINE

$ docker-machine ssh manager
                        ##         .
                  ## ## ##        ==
               ## ## ## ## ##    ===
           /"""""""""""""""""\___/ ===
      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~
           \______ o           __/
             \    \         __/
              \____\_______/
 _                 _   ____     _            _
| |__   ___   ___ | |_|___ \ __| | ___   ___| | _____ _ __
| '_ \ / _ \ / _ \| __| __) / _` |/ _ \ / __| |/ / _ \ '__|
| |_) | (_) | (_) | |_ / __/ (_| | (_) | (__|   <  __/ |
|_.__/ \___/ \___/ \__|_____\__,_|\___/ \___|_|\_\___|_|  WARNING: this is a build from test.docker.com, not a stable release.Boot2Docker version 1.13.0-rc6, build HEAD : 5ab2289 - Wed Jan 11 23:37:52 UTC 2017
Docker version 1.13.0-rc6, build 2f2d055

Create a swarm

Initialize the swarm

$ docker-machine ssh manager
                        ##         .
                  ## ## ##        ==
               ## ## ## ## ##    ===
           /"""""""""""""""""\___/ ===
      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~
           \______ o           __/
             \    \         __/
              \____\_______/
 _                 _   ____     _            _
| |__   ___   ___ | |_|___ \ __| | ___   ___| | _____ _ __
| '_ \ / _ \ / _ \| __| __) / _` |/ _ \ / __| |/ / _ \ '__|
| |_) | (_) | (_) | |_ / __/ (_| | (_) | (__|   <  __/ |
|_.__/ \___/ \___/ \__|_____\__,_|\___/ \___|_|\_\___|_|  WARNING: this is a build from test.docker.com, not a stable release.Boot2Docker version 1.13.0-rc7, build HEAD : b2cde29 - Sat Jan 14 00:29:39 UTC 2017
Docker version 1.13.0-rc7, build 48a9e53

Initialize a swarm

docker@manager:~$ docker swarm init --advertise-addr 192.168.99.100
Swarm initialized: current node (2tjrasfqfu945b7n4753374sw) is now a manager.To add a worker to this swarm, run the following command:    docker swarm join \
    --token SWMTKN-1-144pfsupfo25h43zzr6b6bghjson8uedxjsndo5vuehqlyarsk-9k4q84axm008whv9zl4a8m8ct \
    192.168.99.100:2377To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

Add a worker node to the swarm

Log into the worker machine.

$ docker-machine ssh worker
                        ##         .
                  ## ## ##        ==
               ## ## ## ## ##    ===
           /"""""""""""""""""\___/ ===
      ~~~ {~~ ~~~~ ~~~ ~~~~ ~~~ ~ /  ===- ~~~
           \______ o           __/
             \    \         __/
              \____\_______/
 _                 _   ____     _            _
| |__   ___   ___ | |_|___ \ __| | ___   ___| | _____ _ __
| '_ \ / _ \ / _ \| __| __) / _` |/ _ \ / __| |/ / _ \ '__|
| |_) | (_) | (_) | |_ / __/ (_| | (_) | (__|   <  __/ |
|_.__/ \___/ \___/ \__|_____\__,_|\___/ \___|_|\_\___|_|  WARNING: this is a build from test.docker.com, not a stable release.Boot2Docker version 1.13.0-rc7, build HEAD : b2cde29 - Sat Jan 14 00:29:39 UTC 2017
Docker version 1.13.0-rc7, build 48a9e53

On the worker, run the join command given as the output of the swarm init command you ran on the manager.

docker@worker:~$ docker swarm join \
>     --token SWMTKN-1-144pfsupfo25h43zzr6b6bghjson8uedxjsndo5vuehqlyarsk-9k4q84axm008whv9zl4a8m8ct \
>     192.168.99.100:2377
This node joined a swarm as a worker.

List the nodes in the swarm

docker@manager:~$ docker node ls
ID                           HOSTNAME  STATUS  AVAILABILITY  MANAGER STATUS
2tjrasfqfu945b7n4753374sw *  manager   Ready   Active        Leader
syc46yimgtyz9ljcsfqiurvp0    worker    Ready   Active