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KenCochrane

1,437 karma · joined March 4, 2011

Software Developer living in Southern Maine

For more info, checkout the following links:

Blog : http://KenCochrane.com

Github : http://github.com/kencochrane

Linkedin: http://www.linkedin.com/in/kencochrane

Stack overflow: http://stackoverflow.com/users/356788/

submissionscomments
KenCochrane··on Five new undisclosed Xen vulnerabilities
I got an email from linode yesterday telling me they need to do the same. Not sure if they had any public communication yet.
KenCochrane··on Zero to Peanut Butter Docker Time in 78 Seconds
When you start the container you can specify which port you want using the -p command.

This command would start it on port 8000, but you could change to any other port you want, assuming it is free.

$ docker run -d -p :8000 kencochrane/django-docker

I'm also pretty sure that when your host is restarted the container will start back up when docker does, if the container was running before the host was restarted.

KenCochrane··on Docker Now Part Of Red Hat OpenShift
Yes, we will still support Ubuntu, and other non-redhat kernel versions.

This is basically just expanding our current abilities to include areas where we didn't have great support before.

The goal is to have Docker running on all linux platforms, so that everyone can use it regardless of their distro choice.

KenCochrane··on Docker Now Part Of Red Hat OpenShift
Here is a blog post from docker: http://blog.docker.io/2013/09/red-hat-and-docker-collaborate...
KenCochrane··on Docker at DjangoCon US 2013
Yes, it would be perfect for that. In fact people are using it for that today.

Here are some slides showing how eBay does this today with Docker. https://speakerdeck.com/teddziuba/docker-at-ebay there is also a video available of the talk he gave explaining it at one of the docker hack days. I don't have the link handy, but I'm sure you could find it.

KenCochrane··on Docker at DjangoCon US 2013
I believe so, AUFS and BtrFS are for storing the images to disk, which is different then shared memory, so changing those shouldn't affect it.
KenCochrane··on CTL-C: Re-imagined IaaS with Docker Containers
Have you looked at https://github.com/dotcloud/openstack-docker it allows you to use Docker to make it easier to use LXC with openstack.
KenCochrane··on The Docker Book
If you are looking for an open source docker book, check out https://github.com/kencochrane/docker-tutorial I'm building a Docker Guidebook, that I hope to release as a free ebook.

It is on github, and pull requests are welcome. It is currently written for Docker 0.5. I will keep it up to date, and when we hit 1.0 I'll look at getting some hard copies made, if there is a demand.

I still need to pick a license, not sure what is best for a book, open to suggestions.

KenCochrane··on Flynn - Open Source PaaS powered by Docker
Here are notes on getting Docker running on

Digital Ocean: http://kencochrane.net/blog/2013/06/running-docker-on-digita...

Rackspace: http://kencochrane.net/blog/2013/05/running-docker-on-racksp...

Linode: http://stinemat.es (site seems to be down at the moment)

KenCochrane··on License-Plate Readers Let Police Collect Millions of Records on Drivers
The same technology caught Soulja Boy's car as the one who caused a hit in run a few months ago. The article goes into some of the details of how he was caught.

http://www.tmz.com/2013/05/23/soulja-boy-bentley-impounded-h...

Updated to fix link.

KenCochrane··on Getting Docker to run on Linode
I see, thanks. I'll see if I can get someone to look at it.
KenCochrane··on Getting Docker to run on Linode
something like this.

http://docs.docker.io/en/latest/installation/rackspace/ http://docs.docker.io/en/latest/installation/amazon/

Basically the steps required by someone in order to get it up and running on Chunkhost. Best to start from beginning (creating a new server) and go from there.

The docs are located here: https://github.com/dotcloud/docker/tree/master/docs/sources/... if you have any questions, feel free to submit the PR with your questions, or jump on the IRC channel #docker on freenode.

KenCochrane··on Getting Docker to run on Linode
What do you mean by support using a proxy server? Can you put a link to the Docker ticket, and I'll take a look.
KenCochrane··on Getting Docker to run on Linode
Thank you, I have added it to https://github.com/dotcloud/docker/issues/614 Would you be interested in submitting a pull request to add it to the official docs?
KenCochrane··on University of Glasgow builds Raspberry PI Cloud Server
This is cool stuff, I have also been trying to get LXC containers running on the RaspberryPi. I used their guide and it went pretty well. I want to create a downloadable image so that you can skip over all the begining steps, and get into the fun stuff quicker. Just haven't had the time yet.

I'm now trying to get Docker running on the raspberryPi, if you want to help, checkout my notes here: http://kencochrane.net/blog/2013/05/running-docker-on-a-rasp...

KenCochrane··on The Meteoric Rise of DigitalOcean
I have been using Digital Ocean as a sandbox for playing with Docker, and it has been great. I can spin up a server in less then 1 minute, install the Docker dependencies, and be up in running in no time. I do what I need to do, and then I spin it down if I don't need it anymore.

I wrote down my notes on how to get Docker running on Digital Ocean, if anyone wants to play with it. There is even a promo code for a $10 credit for new signups.

http://kencochrane.net/blog/2013/06/running-docker-on-digita...

I had a couple of issues when I first tried using them, but I was able to get help pretty quickly on a Saturday morning no less. I haven't used them for anything production quality yet, I have most of that stuff on EC2 and Rackspace right now, but I hope to start moving some smaller projects to DO as they come up.

Someone else mentioned this already as well, but the SSD is so nice compared to EC2's EBS, so if you are doing anything with lots of I/O then it is a must have.

KenCochrane··on Deploy Java Apps With Docker
There are more links like this. For a list of the ones I have compiled so far check out this page.

https://github.com/dotcloud/docker/issues/614

Feel free to add to the list if you know of some I forgot.

I'm also planning on writing my own Docker for dummies tutorial that goes from beginning to end explaining how to use each part along the way. Now I just need to find some time to put it all together.

KenCochrane··on Deploy Java Apps With Docker = Awesome
duplicate of https://news.ycombinator.com/item?id=5873636
KenCochrane··on Dockerui - A web interface for docker
Really cool stuff! How long did it take you to build it? Was there anything missing in the docker remote API that you wish it had?
KenCochrane··on Docker 0.4.0 release note
Can you give us some examples on where it is poorly documented so that we can fix those issues?

Also, if you can let us know what you were doing when the command didn't work the same way every time? Have you filed any issues for those yet? If not, can you, or tell me here and I can do it for you. If we don't know about your issues, it is hard for us to fix them.

Thanks

KenCochrane··on Docker - Way better than a VM
I have been able to get Docker up and running on Amazon EC2, Rackspace Cloud [2], and Linode. You can't get it working on Digital Ocean just yet [3], Due to their inability to run custom kernels, and their lack of Ubuntu 13.04 support. But I'm sure it will be available in the near future.

If there are any hosting providers that you would like to see directions on how to get Docker up and running, please submit an issue, and we will do our best to add it to the docs. I'm working my way down a list, picking the most popular ones first. If I have a lot of requests for a particular host, I'll do that one next.

[1] http://docs.docker.io/en/latest/installation/amazon.html [2] http://docs.docker.io/en/latest/installation/rackspace.html [3] https://github.com/dotcloud/docker/issues/424

KenCochrane··on Docker - Way better than a VM
I guess it depends on what you mean by production ready. dotCloud, Heroku and others already use LXC in production, and they have been for a while.

You just need to know what the limitations are, and make sure you build your system around LXC so that you are protected.

KenCochrane··on Docker - Way better than a VM
If you are using Ubuntu 12.04 or 13.04 the recommended installation method is to use the Docker PPA.

More information available here: http://docs.docker.io/en/latest/installation/ubuntulinux.htm...

KenCochrane··on 1GB Ram & SSD Cloud Hosting for $6
Website seems down. Not a good sign.
KenCochrane··on Fixing Python's String class
Thought this was a day early for April fools until I realized he uses UTC on his blog.
KenCochrane··on Exceptional to join the Rackspace Family
This blog post [1] says:

"... We’ll continue to support our customers in AWS until we’ve solutions that offer faster reliable Redis without the zone latency."

[1] http://blog.togo.io/

KenCochrane··on Docker, the Linux container runtime: now open-source
I would argue for Docker, but i'm biased :)
KenCochrane··on Docker, the Linux container runtime: now open-source
There are issues with unionfs in it's current form. Because of those issues, aufs is currently more stable.

Docker isn't tied to aufs, if unionfs or any other union file system comes along and is better, we are more then happy to switch to it.

KenCochrane··on Docker, the Linux container runtime: now open-source
no, it maps to the docker registry which is different then github.

The docker registry is a community server where anyone can add their own images, they just need to login first (docker login), and then push/pull their images they want to share.

nothing is stopping you, so go ahead and try it today.

KenCochrane··on Docker, the Linux container runtime: now open-source
There are similar tools written in other languages, python, c, perl, etc.
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