How I prepared my Mac to make some Docker development

by Álex 2014-12-01 dev docker environment

This post is about how I did it! not about a standard way or something like that, if you use any other way I would be happy to hear it on the comments.

I usually use boot2docker on my machine to run container, but it looks like it was misbehaving a little bit when I was trying to create the binary of my dev branch with:

$ make binary

Actually, it was just not creating it.

I could also create some cross-compiled binaries but that didn’t work either. It was a really weird situation because I couldn’t find the path that it was saying that it was creating. Not in my machine, not in my boot2docker VM either. So, after some frustrating time I decided to go with vagrant.

What I wanted?

How I did it?

vagrant

It was a simple process after you have clear what you really want to do:

$ cd myawesomebox
$ vagrant init  # Edit the file if you want more memory or similar
$ git clone git@github.com:YOUR_USERNAME/docker
$ vagrant ssh
$ sudo su -

What we did there? We have created a Vagrantfile and we clone the repo in the same folder. Thanks to that when we are inside the vagrant box (with vagrant ssh) we will be able to access to it on the path /vagrant of your box.

The advantage of this approach is that you can access to all the docker code from your host machine in the path myawesomebox so you will not need to copy any key, any conf or anything like that.

docker

Now it’s time to update your docker server and create your on docker client (remember that we are logged in as root on that box):

# cd /vagrant/docker
# make build&&make binary
# service docker stop
# cp bundles/1.3.2-dev/binary/docker-1.3.2-dev /usr/bin/docker
# service docker start

Where 1.3.2 is the current version at the time of writing & /usr/bin/docker is your old docker server binary.

Now you are running a new server, but where is the client?! Easy peasy, on the same place that the server was originally:

# bundles/1.3.2-dev/binary/docker
...

I usually alias it to the letter d to access to it quicker without moving stuff around:

# alias d="`pwd`/bundles/1.3.2-dev/binary/docker"

What’s next?

I would say that develop some nice pull request? Or at least try! It’s fun anyway :)

I went through all this pain while @eloycoto & me were developing a small PR to show vertical ps outputs, so, thanks mate!

If you have any question or you think that my way of doing this stinks, please, let me know! I would really, really appreciate it.


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