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https://github.com/tknerr/vagrant-docker-baseimages

A collection of Vagrant-friendly docker base images
https://github.com/tknerr/vagrant-docker-baseimages

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A collection of Vagrant-friendly docker base images

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# Vagrant-friendly Docker Base Images

[![Circle CI](https://circleci.com/gh/tknerr/vagrant-docker-baseimages/tree/master.svg?style=shield)](https://circleci.com/gh/tknerr/vagrant-docker-baseimages/tree/master)

A collection of Vagrant-friendly docker base images (published for `linux/amd64` and `linux/arm64` platforms) along with corresponding Vagrant baseboxes. Something inbetween the
official distro base image and [puhsion/baseimage](https://phusion.github.io/baseimage-docker/), just enough to make it work with Vagrant.

On top of the official distro base image it includes:

* the `vagrant` user (password `vagrant`) with passwordless sudo enabled
* the vagrant insecure public key in `~/.ssh/authorized_keys`
* `sshd` running in the foreground

## Vagrant Baseboxes

The intended use of the Vagrant-friendly docker base images is to use them as a basebox in your `Vagrantfile`. These baseboxes simply reference one of the [actual docker base images](https://github.com/tknerr/vagrant-docker-baseimages#docker-base-images) below.

The following baseboxes are currently published on [Vagrant Cloud](https://app.vagrantup.com/boxes/search):

* [`tknerr/baseimage-ubuntu-22.04`](https://app.vagrantup.com/tknerr/boxes/baseimage-ubuntu-22.04)
* [`tknerr/baseimage-ubuntu-20.04`](https://app.vagrantup.com/tknerr/boxes/baseimage-ubuntu-20.04)
* [`tknerr/baseimage-ubuntu-18.04`](https://app.vagrantup.com/tknerr/boxes/baseimage-ubuntu-18.04)
* [`tknerr/baseimage-ubuntu-16.04`](https://app.vagrantup.com/tknerr/boxes/baseimage-ubuntu-16.04)
* [`tknerr/baseimage-ubuntu-14.04`](https://app.vagrantup.com/tknerr/boxes/baseimage-ubuntu-14.04)

### Usage

Use the `config.vm.box` setting to specify the basebox in your Vagrantfile.

For example, run `vagrant init tknerr/baseimage-ubuntu-22.04 --minimal` to create the Vagrantfile below:
```ruby
Vagrant.configure(2) do |config|
config.vm.box = "tknerr/baseimage-ubuntu-22.04"
end
```

Then, running `vagrant up --provider docker` should look similar to this:
```
W:\repo\sample>vagrant up --provider=docker
Bringing machine 'default' up with 'docker' provider...
==> default: Creating the container...
default: Name: minimal_default_1441605508
default: Image: tknerr/baseimage-ubuntu:22.04
default: Volume: /w/repo/sample:/vagrant
default: Port: 0.0.0.0:2222:22
default:
default: Container created: f366398390f6b33f
==> default: Starting container...
==> default: Waiting for machine to boot. This may take a few minutes...
default: SSH address: 192.168.59.104:2222
default: SSH username: vagrant
default: SSH auth method: private key
default:
default: Vagrant insecure key detected. Vagrant will automatically replace
default: this with a newly generated keypair for better security.
default:
default: Inserting generated public key within guest...
default: Removing insecure key from the guest if it's present...
default: Key inserted! Disconnecting and reconnecting using new SSH key...
==> default: Machine booted and ready!
```

### Multi-Platform Support

In case you want bring up the docker base images for an architecture different from your host OS
you can do that by setting the `$DOCKER_DEFAULT_PLATFORM` environment variable.

For example, to run the arm64 base image on an amd64 host:
```
$ DOCKER_DEFAULT_PLATFORM=linux/arm64 vagrant up --povider docker
```

Or vice versa, to use the amd64 base image:
```
$ DOCKER_DEFAULT_PLATFORM=linux/amd64 vagrant up --povider docker
```

**Please note:** running the base image under an architecture different from your host OS will run the container emulated under QEMU,
which might be substantially slower than running the container under the native architecture!

## Docker Base Images

In case you want to work with the actual docker base images directly, the following ones (see subdirectories) are available on [docker hub](https://registry.hub.docker.com) (published as multi-arch docker images, supporting `linux/amd64` and `linux/arm64` platforms):

* [`tknerr/baseimage-ubuntu:22.04`](https://hub.docker.com/r/tknerr/baseimage-ubuntu/tags/)
* [`tknerr/baseimage-ubuntu:20.04`](https://hub.docker.com/r/tknerr/baseimage-ubuntu/tags/)
* [`tknerr/baseimage-ubuntu:18.04`](https://hub.docker.com/r/tknerr/baseimage-ubuntu/tags/)
* [`tknerr/baseimage-ubuntu:16.04`](https://hub.docker.com/r/tknerr/baseimage-ubuntu/tags/)
* [`tknerr/baseimage-ubuntu:14.04`](https://hub.docker.com/r/tknerr/baseimage-ubuntu/tags/)

### Usage

You can use it in your Vagrantfile in it's most simple form like this and then
run `vagrant up`:
```ruby
Vagrant.configure(2) do |config|
config.vm.provider "docker" do |d|
d.image = "tknerr/baseimage-ubuntu:22.04"
end
end
```

If you want to use provisioners, you need to additionally tell vagrant that
this container has ssh enabled:
```ruby
Vagrant.configure(2) do |config|
config.vm.provider "docker" do |d|
d.image = "tknerr/baseimage-ubuntu:22.04"
d.has_ssh = true
end

# use shell and other provisioners as usual
config.vm.provision "shell", inline: "echo 'hello docker!'"
end
```

### Multi-Platform Support

As an alternative to using the `$DOCKER_DEFAULT_PLATFORM` environment variable mentioned above, you can also
pass the desired `--platform` directly via the docker provider configuration in your Vagrantfile:
```ruby
Vagrant.configure(2) do |config|
config.vm.provider "docker" do |d|
d.image = "tknerr/baseimage-ubuntu:22.04"
d.create_args = [ '--platform=linux/arm64' ]
end
end
```

## Development

### Prerequisites

Prerequisites you need to have installed:

* Docker
* Vagrant
* Ruby

### Building and Testing

Install bundler dependencies first:
```
$ bundle install
```

To build the Docker Base Images for Ubuntu 22.04:
```
$ bundle exec rake build:docker:base_images PLATFORM=ubuntu-22.04
```

Run integration tests for the Docker Base Image:
```
$ bundle exec rake test:docker:base_images PLATFORM=ubuntu-22.04
rspec --format doc --color --tty spec/baseimage_spec.rb

vagrant-friendly docker baseimages
tknerr/baseimage-ubuntu:22.04 (for amd64)
is present as a docker image for amd64
is referenced in a `Vagrantfile` as a docker image
is not created when I run `vagrant status`
comes up when I run `vagrant up --no-provision`
is now shown as running when I run `vagrant status` again
accepts remote ssh commands via `vagrant ssh -c`
can be provisioned with a shell script via `vagrant provision`
is DISTRIB_ID=Ubuntu / DISTRIB_RELEASE=22.04 in lsb-release file
is running under amd64 architecture
can be stopped via `vagrant halt`
can be destroyed via `vagrant destroy`

Finished in 56.74 seconds (files took 0.31354 seconds to load)
11 examples, 0 failuress
```

In order to build the Vagrant Basebox "wrappers" around it:
```
$ bundle exec rake build:vagrant:baseboxes PLATFORM=ubuntu-22.04
```

Run integration tests for the Vagrant Basebox:
```
$ bundle exec rake test:vagrant:baseboxes PLATFORM=ubuntu-22.04
rspec --format doc --color --tty spec/basebox_spec.rb

vagrant base boxes for the docker baseimages
tknerr/baseimage-ubuntu-22.04 (running on an amd64 host)
is referenced in a `Vagrantfile` as a basebox
can be imported via `vagrant box add`
comes up via `vagrant up --provider docker`
creates a docker container for amd64 architecture
can be destroyed via `vagrant destroy`

Finished in 30.08 seconds (files took 0.61239 seconds to load)
5 examples, 0 failures
```

### Publishing

This is currently done manually, and requires to log in to dockerhub / vagrantcloud interactively.

To publish the docker base image for Ubuntu 22.04 to dockerhub:
```
$ bundle exec rake publish:docker:base_images PLATFORM=ubuntu-22.04
```

To publish the corresponding vagrant basebox to vagrantcloud:
```
$ bundle exec rake publish:vagrant:baseboxes PLATFORM=ubuntu-22.04
```

## Contributing

How to contribute?

1. fork this repo
2. create a new branch with your changes
3. submit a pull request

## License

MIT - see the accompanying [LICENSE](https://github.com/tknerr/vagrant-docker-baseimages/blob/master/LICENSE) file