cannot ssh Docker Provided Container with Vagrant. Vagrant ssh doesnt work too

Question

I am fairly new to Vagrant and Docker both. What I am trying to do here is to get a container provided via docker in Vagrant and install a small webapp using the shell provisioner.

Here is my Vagrantfile

Vagrant.configure(2) do |config|

# config.vm.provision :shell, path: "bootstrap.sh"
config.vm.provision :shell, inline: 'echo Hi there !!!'

   config.vm.provider :docker do |d|
     d.name="appEnvironment"
     d.image = "phusion/baseimage"
     d.remains_running = true
     d.has_ssh = true
     d.cmd = ["/sbin/my_init","--enable-insecure-key"]
   end
end

The problem that i am facing here is that after the container is created it keeps running the following and eventually just stops. I can see a running docker container when i type in docker ps but it hasnt run the provisioning part. I am assuming it is because the ssh wasnt successful

==> default: Creating the container...
    default:   Name: appEnvironment
    default:  Image: phusion/baseimage
    default:    Cmd: /sbin/my_init --enable-insecure-key
    default: Volume: /home/devops/vagrantBoxForDemo:/vagrant
    default:   Port: 127.0.0.1:2222:22
    default:  
    default: Container created: 56a87b7cd10c22fe
==> default: Starting container...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 172.17.0.50:22
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Warning: Connection refused. Retrying...
    default: Warning: Connection refused. Retrying...
    default: Warning: Connection refused. Retrying...

Can someone let me know where i might be wrong? I tried changing the image as well but without success.

Answer 1

First download the insecure key provided by phusion from:

https://github.com/phusion/baseimage-docker/blob/master/image/insecure_key

* Remember the insecure key should be used only for development purposes.

Now, you need to enable ssh by adding the following into your Dockerfile:

FROM phusion/baseimage
RUN rm -f /etc/service/sshd/down
RUN /etc/my_init.d/00_regen_ssh_host_keys.sh
RUN /usr/sbin/enable_insecure_key

Enable ssh and specify the key file in your Vagrantfile:

Vagrant.configure("2") do |config|
  config.vm.define "app" do |app|
    app.vm.provider "docker" do |d|
      d.build_dir = "."
      d.cmd = ["/sbin/my_init", "--enable-insecure-key"]
      d.has_ssh = true
    end 
  end
  config.ssh.username = "root"
  config.ssh.private_key_path = "path/to/your/insecure_key"
end

Up your environment

vagrant up

Now you should be able to access your container by ssh

vagrant ssh app