vagrant-friendly-docker-ubuntu-18's Introduction

vagrant-friendly-docker-ubuntu-18

A vagrant-friendly Ubuntu 18.04 Docker build (this will upset the Docker blowhards - we violate Docker conventions on purpose)

Rationale

We don't want to use Docker in production, but we do like how much faster it is than VirtualBox and fully-virtualized environments.

We wanted to use Docker instead of VirtualBox for our Vagrant workflow, along with Ansible. So, we did a thing.

What's in the box

It's actually pretty simple.

This image installs python and ssh-server.

Things we do:

Insert Vagrant's default insecure key for the vagrant user
Set up reasonable SSH services and configurations
Use SystemD hack to expose SystemD upwards to Vagrant and the running Ansible system such that you can query running system services through Ansible's systemd/service modules

How do I use it

See our example Vagrantfile

ENV['VAGRANT_DEFAULT_PROVIDER'] = 'docker'

Vagrant.configure("2") do |config|

## Configure Docker provider for all vms
    config.vm.provider "docker" do |d|
        # d.build_dir       = "./"
        # d.git_repo =
        d.image                     = 'armenr/ubuntu18.04-vagrant'
        d.pull                      = true
        d.has_ssh                   = true
        d.remains_running           = true
        # Use these implicit port mappings at your own risk for multi-machine
        # d.ports = [ "5044:5044" ]
    end

    ## Using vanilla vagrant ssh settings & keys
    config.ssh.username   = 'vagrant'
    config.vm.network :private_network, type: "dhcp", docker_network__internal: true

    # NOTE - for later: https://github.com/devopsgroup-io/vagrant-hostmanager
    # config.hostmanager.enabled           = true
    # config.hostmanager.manage_guest      = true
    # config.vm.provision :hostmanager

## Begin defining vms

    ## Sample docker1
    config.vm.define :machine1 do |machine1|
        machine1.vm.hostname = "machine1"
        machine1.vm.provider "docker" do |d, override|
          d.name = "machine1"
          d.ports = [ "5044:5044" ]
          d.link "machine2:machine2"
        end
    end

    ## Sample docker2
    config.vm.define :machine2 do |machine2|
      machine2.vm.hostname = "machine2"
      machine2.vm.provider "docker" do |d, override|
        d.name = "machine2"
        d.ports = [ "5000:5000" ]
      end
    end

## End all vms
end

Recommend Projects