7 ms·

Getting to Docker 1.0

139 points by julien421 13y ago

lsllc 13y ago
I would love to see an ARM port of Docker (LXC supports ARM).
- golubbe 13y ago
  We definitely want to see this too, and it is something being investigated for post- 0.8. In the meantime, you may want to read http://kencochrane.net/blog/2013/05/running-docker-on-a-raspberrypi/ http://kencochrane.net/blog/2013/05/running-docker-on-a-rasp...
golubbe 13y ago
Important news for Docker developers. Please let us know what you think.
nickstinemates 13y ago
Stating a roadmap is never easy, but hugely important for keeping the Docker team accountable. I believe that getting to a 1.0 release with the same fervor from the community will be a great indicator of future viability and success. That sets a pretty high bar.
- gabrtv 13y ago
  No question it's a high bar. Then again, I would have never predicted the rate at which Docker has matured already. Color me optimistic.
  - shykes 13y ago
    We are pretty much forced to set this high bar because of the rate at which organizations large and small are adopting Docker. We will do everything we can to live up to the expectations!
sciurus 13y ago
"August 7: Introduce this new architectural approach to the community, and provide a developer preview" Where can we find this?
- golubbe 13y ago
  Sorry--typo on my part (since corrected). We introduced the approach today, and will make the developer preview available on August 15.
MatthewPhillips 13y ago
It's unfortunate that it requires a 3.8 kernel, as getting those to work on most machines has been in my experience rather difficult. I had to downgrade back to 3.2 on a Ubuntu server because it wouldn't boot with 3.8. I was able to get it to work on a DigitalOcean fresh VM, but unless I want to migrate everything to a fresh VM, which I don't, I don't see myself using it for a while.
- golubbe 13y ago
  Broader compatibility (including reducing kernel dependency) is a major part of this push. There are a number of workarounds today (e.g. patching the kernel, deploying as VM) which are discussed on http://www.docker.io/gettingstarted/ http://www.docker.io/gettingstarted/ But, obviously, such workarounds aren't practical in every environment.
- yuvadam 13y ago
  Sounds like your problem is not with the 3.8+ kernel but with your choice of distributions that do not support it properly.
  - mbreese 13y ago
    Given that Docker currently requires AUFS, Ubuntu is the distro of choice, so it's a problem.
    - e12e 13y ago
      Aufs works fine on Debian as well?
- nickstinemates 13y ago
  Just an FYI - tryrethink.info and my blog (nick.stinemat.es) are both running on 3.2.0-48. While it is not the recommended configuration, I haven't had any kernel related issues.
  - julien421 13y ago
freeman478 13y ago
Great plan ! Anybody knows if making docker run natively on Windows is possible ? (is there any sort of LXC like feature in Windows ?)
- barake 13y ago
  Well, you can run a Linux VM. Windows doesn't support anything like BSD jails or LXC right now.
- wmf 13y ago
  Maybe somebody can bring CoLinux up to 3.8. http://www.colinux.org/?section=status http://www.colinux.org/?section=status
- airtonix 13y ago
  why? the less windows severs out there, the better.
- mbreese 13y ago
  If this was going to be possible with Windows, it would have to be done by Redmond. And given that they'd be out of a Windows license by allowing containers w/in Windows (as opposed to VMs), I doubt that will happen. Unless you're talking about running this as a Linux VM on a Windows host, in which case, sure - why not?
uses 13y ago
I'd like to see a "docker for web developers" post / guide. I want to know how to write a dockerfile (?) that I can run a command against, and have a dev environment materialize. Something I can track in source control along with my "main" source. Something to replace the difficult-to-recreate and outside-of-source-control LAMP and Flask environments I have now. And I'd like to know how my sites' source code or untracked files (e.g. .sqlite file, mongo dump files) fall into that, while still being accessible to the docker container. I imagine this would cover a huge percentage of people interested in Docker.
- lsllc 13y ago
  Agreed, most of the tutorials I've seen so far have been along the lines of frio's answer -- ie you pull someone else's pre-build docker image (or docker file) and use that.
  - nickstinemates 13y ago
    I feel like I've already linked to my blog too much, but please take a look at http://nick.stinemat.es http://nick.stinemat.es . I go through setting up Docker, to building my apps with Docker, to running a huge site on Docker. If you're looking for more content, I'll be happy to provide it.
    - xnxn 13y ago
      Don't feel bad about linking to your blog -- even with the few posts it has, it was an invaluable resource in helping me get started with Docker. Please keep writing!
- frio 13y ago
  Here's (https://github.com/frio/cloud9-dockerfile https://github.com/frio/cloud9-dockerfile) something vaguely along those lines -- a basic popup IDE using Cloud9. It's not a complete solution (and probably never will be) but it made me happy :). You can run it with: git clone https://github.com/frio/cloud9-dockerfile cd cloud9-dockerfile docker build -t "yourname/cloud9" ./ docker run yourname/cloud9 -e PROJECT=git@github.com:your/project ... and then opening your-ip:3131 :).
tmzt 13y ago
With a stable API it would be nice to have an API client for Windows for developers building software on that platform but deploying to Linux. It would be great to be able to do a docker import from a checked out codebase in Windows.
- shykes 13y ago
  Yes. The core engine will build and run on all platforms supported by Go, including OSX and Windows.
- nickstinemates 13y ago
  Have you seen docker-py[1]? Bindings for other languages also exist, but the main theme is that the docker host can be controlled (if configured that way) by external machines. 1: http://www.github.com/dotcloud/docker-py http://www.github.com/dotcloud/docker-py
knodi 13y ago
little off topic. can someone of the Docker team comment on what its been like to work with GoLang on a big project like Docker?
- nickstinemates 13y ago
  You should start contributing[1] and let us know :). More seriously, it's a great topic for the mailing list and I encourage you to post it. 1: http://github.com/dotcloud/docker http://github.com/dotcloud/docker

139 points by julien421 13y ago

lsllc 13y ago

I would love to see an ARM port of Docker (LXC supports ARM).

golubbe 13y ago
We definitely want to see this too, and it is something being investigated for post- 0.8. In the meantime, you may want to read http://kencochrane.net/blog/2013/05/running-docker-on-a-raspberrypi/ http://kencochrane.net/blog/2013/05/running-docker-on-a-rasp...

golubbe 13y ago

Important news for Docker developers. Please let us know what you think.

nickstinemates 13y ago

Stating a roadmap is never easy, but hugely important for keeping the Docker team accountable. I believe that getting to a 1.0 release with the same fervor from the community will be a great indicator of future viability and success. That sets a pretty high bar.

gabrtv 13y ago
No question it's a high bar. Then again, I would have never predicted the rate at which Docker has matured already. Color me optimistic.
- shykes 13y ago
  We are pretty much forced to set this high bar because of the rate at which organizations large and small are adopting Docker. We will do everything we can to live up to the expectations!

sciurus 13y ago

"August 7: Introduce this new architectural approach to the community, and provide a developer preview" Where can we find this?

golubbe 13y ago
Sorry--typo on my part (since corrected). We introduced the approach today, and will make the developer preview available on August 15.

MatthewPhillips 13y ago

It's unfortunate that it requires a 3.8 kernel, as getting those to work on most machines has been in my experience rather difficult. I had to downgrade back to 3.2 on a Ubuntu server because it wouldn't boot with 3.8. I was able to get it to work on a DigitalOcean fresh VM, but unless I want to migrate everything to a fresh VM, which I don't, I don't see myself using it for a while.

golubbe 13y ago
Broader compatibility (including reducing kernel dependency) is a major part of this push. There are a number of workarounds today (e.g. patching the kernel, deploying as VM) which are discussed on http://www.docker.io/gettingstarted/ http://www.docker.io/gettingstarted/ But, obviously, such workarounds aren't practical in every environment.
yuvadam 13y ago
Sounds like your problem is not with the 3.8+ kernel but with your choice of distributions that do not support it properly.
- mbreese 13y ago
  Given that Docker currently requires AUFS, Ubuntu is the distro of choice, so it's a problem.
  - e12e 13y ago
    Aufs works fine on Debian as well?
nickstinemates 13y ago
Just an FYI - tryrethink.info and my blog (nick.stinemat.es) are both running on 3.2.0-48. While it is not the recommended configuration, I haven't had any kernel related issues.
- julien421 13y ago

freeman478 13y ago

Great plan ! Anybody knows if making docker run natively on Windows is possible ? (is there any sort of LXC like feature in Windows ?)

barake 13y ago
Well, you can run a Linux VM. Windows doesn't support anything like BSD jails or LXC right now.
wmf 13y ago
Maybe somebody can bring CoLinux up to 3.8. http://www.colinux.org/?section=status http://www.colinux.org/?section=status
airtonix 13y ago
why? the less windows severs out there, the better.
mbreese 13y ago
If this was going to be possible with Windows, it would have to be done by Redmond. And given that they'd be out of a Windows license by allowing containers w/in Windows (as opposed to VMs), I doubt that will happen. Unless you're talking about running this as a Linux VM on a Windows host, in which case, sure - why not?

uses 13y ago

I'd like to see a "docker for web developers" post / guide. I want to know how to write a dockerfile (?) that I can run a command against, and have a dev environment materialize. Something I can track in source control along with my "main" source. Something to replace the difficult-to-recreate and outside-of-source-control LAMP and Flask environments I have now. And I'd like to know how my sites' source code or untracked files (e.g. .sqlite file, mongo dump files) fall into that, while still being accessible to the docker container. I imagine this would cover a huge percentage of people interested in Docker.

lsllc 13y ago
Agreed, most of the tutorials I've seen so far have been along the lines of frio's answer -- ie you pull someone else's pre-build docker image (or docker file) and use that.
- nickstinemates 13y ago
  I feel like I've already linked to my blog too much, but please take a look at http://nick.stinemat.es http://nick.stinemat.es . I go through setting up Docker, to building my apps with Docker, to running a huge site on Docker. If you're looking for more content, I'll be happy to provide it.
  - xnxn 13y ago
    Don't feel bad about linking to your blog -- even with the few posts it has, it was an invaluable resource in helping me get started with Docker. Please keep writing!
frio 13y ago
Here's (https://github.com/frio/cloud9-dockerfile https://github.com/frio/cloud9-dockerfile) something vaguely along those lines -- a basic popup IDE using Cloud9. It's not a complete solution (and probably never will be) but it made me happy :). You can run it with: git clone https://github.com/frio/cloud9-dockerfile cd cloud9-dockerfile docker build -t "yourname/cloud9" ./ docker run yourname/cloud9 -e PROJECT=git@github.com:your/project ... and then opening your-ip:3131 :).

tmzt 13y ago

With a stable API it would be nice to have an API client for Windows for developers building software on that platform but deploying to Linux. It would be great to be able to do a docker import from a checked out codebase in Windows.

shykes 13y ago
Yes. The core engine will build and run on all platforms supported by Go, including OSX and Windows.
nickstinemates 13y ago
Have you seen docker-py[1]? Bindings for other languages also exist, but the main theme is that the docker host can be controlled (if configured that way) by external machines. 1: http://www.github.com/dotcloud/docker-py http://www.github.com/dotcloud/docker-py

knodi 13y ago

little off topic. can someone of the Docker team comment on what its been like to work with GoLang on a big project like Docker?

nickstinemates 13y ago
You should start contributing[1] and let us know :). More seriously, it's a great topic for the mailing list and I encourage you to post it. 1: http://github.com/dotcloud/docker http://github.com/dotcloud/docker