====== Docker ======

Instalación de docker en MacOS X mediante Home Brew

  $ brew install boot2docker
  ==> Cloning https://github.com/boot2docker/boot2docker-cli.git
  Cloning into '/Library/Caches/Homebrew/boot2docker--git'...
  remote: Counting objects: 42, done.
  remote: Compressing objects: 100% (38/38), done.
  remote: Total 42 (delta 2), reused 13 (delta 2)
  Unpacking objects: 100% (42/42), done.
  Checking connectivity... done
  Note: checking out 'deafc1910fe956666a27f0d21eeb8a0da296dbf4'.
  
  You are in 'detached HEAD' state. You can look around, make experimental
  changes and commit them, and you can discard any commits you make in this
  state without impacting any branches by performing another checkout.
  
  If you want to create a new branch to retain commits you create, you may
  do so (now or later) by using -b with the checkout command again. Example:
  
    git checkout -b new_branch_name
  
  ==> Checking out tag v1.3.0
  ==> go get -d
  ==> make goinstall
  🍺  /usr/local/Cellar/boot2docker/1.3.0: 2 files, 7.2M, built in 12 seconds

Realizar configuración inicial:

  $ boot2docker init
  Latest release for boot2docker/boot2docker is v1.3.0
  Downloading boot2docker ISO image...
  Success: downloaded https://github.com/boot2docker/boot2docker/releases/download/v1.3.0/boot2docker.iso
      to /Users/rodolfo/.boot2docker/boot2docker.iso
  Generating public/private rsa key pair.
  Your identification has been saved in /Users/rodolfo/.ssh/id_boot2docker.
  Your public key has been saved in /Users/rodolfo/.ssh/id_boot2docker.pub.
  The key fingerprint is:
  7b:ab:dc:e6:bb:56:ee:98:53:bf:49:8f:b4:0c:78:b9 rodolfo@barbie.local
  The key's randomart image is:
  +--[ RSA 2048]----+
  |                 |
  |                 |
  |                 |
  |                 |
  |        S        |
  |         . .o.   |
  |        . o++.o  |
  |       . o+=.*.= | 
  |        o=O=E *..|
  +-----------------+


  $ boot2docker start
  Waiting for VM and Docker daemon to start...
  ............................oooooooooooooooooooooo
  Started.
  Writing /Users/rodolfo/.boot2docker/certs/boot2docker-vm/ca.pem
  Writing /Users/rodolfo/.boot2docker/certs/boot2docker-vm/cert.pem
  Writing /Users/rodolfo/.boot2docker/certs/boot2docker-vm/key.pem
  
  To connect the Docker client to the Docker daemon, please set:
    export DOCKER_HOST=tcp://192.168.59.103:2376
    export DOCKER_CERT_PATH=/Users/rodolfo/.boot2docker/certs/boot2docker-vm
    export DOCKER_TLS_VERIFY=1

Ejecutar los 3 export sugeridos

  $ docker run hello-world
  Unable to find image 'hello-world' locally
  hello-world:latest: The image you are pulling has been verified
  511136ea3c5a: Pull complete 
  7fa0dcdc88de: Pull complete 
  ef872312fe1b: Pull complete 
  Status: Downloaded newer image for hello-world:latest
  Hello from Docker.
  This message shows that your installation appears to be working correctly.
  
  To generate this message, Docker took the following steps:
   1. The Docker client contacted the Docker daemon.
   2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
      (Assuming it was not already locally available.)
   3. The Docker daemon created a new container from that image which runs the
      executable that produces the output you are currently reading.
   4. The Docker daemon streamed that output to the Docker client, which sent it
      to your terminal.
  
  To try something more ambitious, you can run an Ubuntu container with:
   $ docker run -it ubuntu bash
  
  For more examples and ideas, visit:
   http://docs.docker.com/userguide/

Ya está el ambiente pronto!

  $ docker run -it ubuntu bash
  Unable to find image 'ubuntu' locally
  ubuntu:latest: The image you are pulling has been verified
  d497ad3926c8: Pull complete 
  c5fcd5669fa5: Pull complete 
  49bb1c57a82c: Pull complete 
  67983a9b1599: Pull complete 
  88fba6f3d2d8: Pull complete 
  eca7633ed783: Pull complete 
  511136ea3c5a: Already exists 
  Status: Downloaded newer image for ubuntu:latest
  root@56729fc5f041:/# 
  root@56729fc5f041:/# 
  root@56729fc5f041:/# echo "soy un lindo contenedor!"
  soy un lindo contenedor!
  root@56729fc5f041:/# 
  root@56729fc5f041:/# exit
  exit

===== Tutorial de docker =====

https://www.docker.com/tryit/