Docker containers tuned to run by Vagrant without a big amount of buzz.
Vagrant knows how to run Docker images but unfortunately it is not pretty convenient to follow the general line. I like to have vagrant ssh but most containers do not provide it out of box. Moreover, it is a bit tricky to use it as a lightweight VM. Docker has its own way and I appreciate it.
But I want to have fast VMs because specific of my work is running of 3-5 VirtualBox VMs on my laptop and overall experience is rather horrible. I have enough RAM but it is still painful sometimes. Some of my work requires frequent restarts of VMs and this is a case where Docker shines.
So I prepared base images (on Ubuntu, CentOS is coming) I could use to setup my Vagrant docker environments without a big pain.
Basically you may fetch these VMs from Docker Hub:
$ docker pull nineseconds/docker-vagrant
Or if you want, you may build them manually with Makefile (just run make and get the same images as I have).
Usage is straighforward: please check Vagrantfile in the repository. Minimal Vagrantfile is following:
# -*- mode: ruby -*-# vi: set ft=ruby :Vagrant.configure(2) do |config|
# Vagrant uses vagrant user by default. Docker uses root. Use root, it is# a development environment anyway.
config.vm.provider "docker"do |docker|
# The name of the image to use
docker.image ="nineseconds/docker-vagrant"# vagrant docker images have SSH so why not to use it
docker.has_ssh =true# Yes, containers are long running.
Let's check how it works...
$ vagrant up
Bringing machine 'default' up with 'docker' provider...
==> default: Fixed port collision for 22 => 2222. Now on port 2202.
==> default: Creating the container...
default: Name: docker-vagrant_default_1425296109
default: Image: nineseconds/vagrant-ubuntu
default: Volume: /home/sergey/dev/pvt/docker-vagrant:/vagrant
default: Port: 127.0.0.1:2202:22
default: Container created: d15b14122ebcedc8
==> default: Starting container...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 172.17.0.58:22
default: SSH username: root
default: SSH auth method: private key
default: Vagrant insecure key detected. Vagrant will automatically replace
default: this with a newly generated keypair for better security.
default: Inserting generated public key within guest...
default: Removing insecure key from the guest if its present...
default: Key inserted! Disconnecting and reconnecting using new SSH key...
==> default: Machine booted and ready!
$ vagrant ssh