ingoclaro / dockerfiles

set of dockerfiles and images

Set of Dockerfiles and docker dev environment

Dockerfiles

ruby-install

ruby-install script, so you can compile ruby build: docker build -t ruby-install ruby-install/
run:
docker run -i ingoclaro/ruby-install
docker run -i ingoclaro/ruby-install ruby 2.0.0-p353 -- --disable-install-doc
binaries will be in /opt/rubies inside the docker container, that is a mounted volume, so you can use it in other containers like this:

docker run -v /opt/rubies -name rubies busybox true
docker run -rm -volumes-from rubies -i ingoclaro/ruby-install ruby 2.0.0-p353 -- --disable-install-doc
docker run -volumes-from rubies image cmd

Once this pull request is merged in, you will be able to copy the binaries from inside a volumne, like: docker cp {container_id}:/opt/rubies/2.0.0-p353 .

gem

gem binary container install and build required gems with this container into a project specific gem volume (/var/lib/ruby). The rationale is to avoid having build tools on production containers.

build: docker build -t ingoclaro/gem gem/
run:

docker run -v /var/lib/ruby -name my_project_gems busybox true
docker run -rm -volumes-from my_project_gems -volumes-from rubies -i ingoclaro/gem update --system
docker run -rm -volumes-from my_project_gems -volumes-from rubies -i ingoclaro/gem update

ruby

ruby base image, use it as a base for your apps

build: docker build -t ingoclaro/ruby ruby/
check:

docker run -rm -volumes-from my_project_gems -volumes-from rubies -i -t ingoclaro/ruby /bin/bash

the idea is to use this as a base image for your app. Note that the ruby version used is configured in environment variables. Check ruby/Dockerfile to see which env variables to override. You'll also need to update the gem container to use the desired ruby version.

Note: I guess at some point it makes more sense to copy the ruby and gems to the container instead of using volumes, I'll explore that at some point.

initial set up

To boot up docker VM review Vagrantfile, then run:
vagrant up

while booting it will complain that it's missing the Virtualbox guest additions. Don't worry, it works just fine without that.

install docker client, for osx:

brew tap homebrew/binary
brew install docker

tell docker to connect to the VM:

export DOCKER_HOST=localhost

test that it can connect:

docker version

The output should be like:

Client version: 0.7.4
Go version (client): go1.2
Git commit (client): 010d74e
Server version: 0.7.5
Git commit (server): c348c04
Go version (server): go1.2
Last stable version: 0.7.5, please update docker

you are ready to roll!!