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Awesome projects from the Docker community

64 points by shawndumas 13y ago

shykes 13y ago
2 more PaaS projects built on docker since this post: - Flynn http://flynn.io http://flynn.io - Deis https://pypi.python.org/pypi/deis https://pypi.python.org/pypi/deis Rethinkdb-as-a-service: http://tryrethink.info http://tryrethink.info
- stigi 13y ago
  Also just 2 more days for the Flynn crowd funding campaign to go. I hope it'll succeed. So if you think about supporting, now's the time!
mattdeboard 13y ago
Docker's really making a hard PR push huh? They're everywhere lately.
- shykes 13y ago
  Believe it or not we (docker team) are not behind 80% of that PR - we wake up in the morning and find the stuff on HN just like you :) Not that I don't appreciate it - I just hope we can deliver on the high expectations!
- agilebyte 13y ago
  It seems like they are on HN every day, yes. And I am getting lost. Docker, Dokku, Strider... I am interested in one thing: continuous deployment of apps that wait until old versions of apps die off (using an IPC channel). Heroku seems to just time out after x minutes. Can someone more knowledgeable than me say how/if the Docker eco system handles this? I am interested in Node.js only.
  - nickstinemates 13y ago
    I'd love to talk about this more. Can you elaborate or point me to the closest version to that reality?
    - agilebyte 13y ago
      Basic idea: https://github.com/superjoe30/naught https://github.com/superjoe30/naught My doodling: https://github.com/radekstepan/trajan https://github.com/radekstepan/trajan
      - nickstinemates 13y ago
        Oh. I do this with docker all the time :)
        agilebyte 13y ago
        Awesome, well then I am glad I found you. Could you, if you would be so kind, please point me in the direction of an example or the tools I need to be using? I will then look in to it and the next time someone asks, I can point them straight to Docker.
        nickstinemates 13y ago
        My blog (http://nick.stinemat.es http://nick.stinemat.es) is the best place to see what I am up to as it relates to Docker. In particular, http://nick.stinemat.es/#continuous-deployment http://nick.stinemat.es/#continuous-deployment talks about my particular setup. Once a revision is "good enough", I update the service configuration to load balance between new and old views of the site, and then remove the old view from the rotation. Reverting back to a previous revision is just as simple. Let me know if you have any other questions, and feel free to drop by #docker on freenode(I'm keeb) Good luck!
        agilebyte 13y ago
        Thank you Nick. I will check it out. In particular I will be interested in how the load balancing happens with zero downtime for already connected clients.
- agumonkey 13y ago
  It seems they've hit some sweet spot that helps people get creative ..
StavrosK 13y ago
There's one thing I don't understand well about docker: I saw people making Graphite containers and the like, but won't all data be erased when you close the container? It seems to me that any sort of persistent data storage on docker is very inconvenient.
- buro9 13y ago
  But if you are putting something like a database in a Docker container, wouldn't you point the storage of the data files at something a little more permanent? And for everything else that is just data processing in the stack, ephemeral storage isn't a bad thing (stops developers writing things to disk when they shouldn't).
  - StavrosK 13y ago
    > But if you are putting something like a database in a Docker container, wouldn't you point the storage of the data files at something a little more permanent? Of course, but how? Can a docker container somehow write to the host fs? It couldn't, a few weeks ago.
    - LoonyPandora 13y ago
      It's new in 0.5.0 [1] - Released ~10 days ago. Things in docker-land move super quick! [1] https://github.com/dotcloud/docker/wiki/Docker-0.5.0:-external-volumes,-advanced-networking,-self-hosted-registry#externally-mounted-volumes https://github.com/dotcloud/docker/wiki/Docker-0.5.0:-extern...
      - StavrosK 13y ago
        Oh, very nice, thanks!
    - buro9 13y ago
      Ah, you see this is what I haven't yet done... but I figured you'd just mount some network attached storage and use that for the data files. Which may or may not be the host machine, and most likely would be the machine you configure to be next door with more focus on SSDs than CPU. I also figured, but haven't checked, that Docker will eventually support Vagrant-style shared folders. But maybe this breaks the philosophical design of a container.
norswap 13y ago
Is there a "container" system that does not entail a significant performance penalty from using VirtualBox etc?
- vidarh 13y ago
  What are you trying to ask? Docker is using LXC when running on Linux, and LXC is a container system that does not entail a significant performance penalty. VirtualBox etc. only comes into the picture if you want to run it on a non-Linux box.
  - norswap 13y ago
    Okay, so what about non-Linux then, e.g. Windows? (Also, apprently LXC guidance is only offered for Ubuntu & Archlinux: http://www.docker.io/gettingstarted/ http://www.docker.io/gettingstarted/) I also thought the point was to be able to deploy anywhere. Considerable performance penalty on some platform may hurt the point significantly.
    - IanChiles 13y ago
      Docker runs on linux only because it uses LXC/cgroups/AUFS, all of which are unique to Linux. FreeBSD Jails and Solaris Zones have the same core concepts that docker uses.
WayneDB 13y ago
Nitpick: Why use a whale as the logo when the tagline says that it's a "lightweight" container system?

64 points by shawndumas 13y ago

2 more PaaS projects built on docker since this post: - Flynn http://flynn.io http://flynn.io - Deis https://pypi.python.org/pypi/deis https://pypi.python.org/pypi/deis Rethinkdb-as-a-service: http://tryrethink.info http://tryrethink.info

stigi 13y ago
Also just 2 more days for the Flynn crowd funding campaign to go. I hope it'll succeed. So if you think about supporting, now's the time!

mattdeboard 13y ago

Docker's really making a hard PR push huh? They're everywhere lately.

shykes 13y ago
Believe it or not we (docker team) are not behind 80% of that PR - we wake up in the morning and find the stuff on HN just like you :) Not that I don't appreciate it - I just hope we can deliver on the high expectations!
agilebyte 13y ago
It seems like they are on HN every day, yes. And I am getting lost. Docker, Dokku, Strider... I am interested in one thing: continuous deployment of apps that wait until old versions of apps die off (using an IPC channel). Heroku seems to just time out after x minutes. Can someone more knowledgeable than me say how/if the Docker eco system handles this? I am interested in Node.js only.
- nickstinemates 13y ago
  I'd love to talk about this more. Can you elaborate or point me to the closest version to that reality?
  - agilebyte 13y ago
    Basic idea: https://github.com/superjoe30/naught https://github.com/superjoe30/naught My doodling: https://github.com/radekstepan/trajan https://github.com/radekstepan/trajan
    - nickstinemates 13y ago
      Oh. I do this with docker all the time :)
      - agilebyte 13y ago
        Awesome, well then I am glad I found you. Could you, if you would be so kind, please point me in the direction of an example or the tools I need to be using? I will then look in to it and the next time someone asks, I can point them straight to Docker.
        nickstinemates 13y ago
        My blog (http://nick.stinemat.es http://nick.stinemat.es) is the best place to see what I am up to as it relates to Docker. In particular, http://nick.stinemat.es/#continuous-deployment http://nick.stinemat.es/#continuous-deployment talks about my particular setup. Once a revision is "good enough", I update the service configuration to load balance between new and old views of the site, and then remove the old view from the rotation. Reverting back to a previous revision is just as simple. Let me know if you have any other questions, and feel free to drop by #docker on freenode(I'm keeb) Good luck!
        agilebyte 13y ago
        Thank you Nick. I will check it out. In particular I will be interested in how the load balancing happens with zero downtime for already connected clients.
agumonkey 13y ago
It seems they've hit some sweet spot that helps people get creative ..

StavrosK 13y ago

There's one thing I don't understand well about docker: I saw people making Graphite containers and the like, but won't all data be erased when you close the container? It seems to me that any sort of persistent data storage on docker is very inconvenient.

buro9 13y ago
But if you are putting something like a database in a Docker container, wouldn't you point the storage of the data files at something a little more permanent? And for everything else that is just data processing in the stack, ephemeral storage isn't a bad thing (stops developers writing things to disk when they shouldn't).
- StavrosK 13y ago
  > But if you are putting something like a database in a Docker container, wouldn't you point the storage of the data files at something a little more permanent? Of course, but how? Can a docker container somehow write to the host fs? It couldn't, a few weeks ago.
  - LoonyPandora 13y ago
    It's new in 0.5.0 [1] - Released ~10 days ago. Things in docker-land move super quick! [1] https://github.com/dotcloud/docker/wiki/Docker-0.5.0:-external-volumes,-advanced-networking,-self-hosted-registry#externally-mounted-volumes https://github.com/dotcloud/docker/wiki/Docker-0.5.0:-extern...
    - StavrosK 13y ago
      Oh, very nice, thanks!
  - buro9 13y ago
    Ah, you see this is what I haven't yet done... but I figured you'd just mount some network attached storage and use that for the data files. Which may or may not be the host machine, and most likely would be the machine you configure to be next door with more focus on SSDs than CPU. I also figured, but haven't checked, that Docker will eventually support Vagrant-style shared folders. But maybe this breaks the philosophical design of a container.

norswap 13y ago

Is there a "container" system that does not entail a significant performance penalty from using VirtualBox etc?

vidarh 13y ago
What are you trying to ask? Docker is using LXC when running on Linux, and LXC is a container system that does not entail a significant performance penalty. VirtualBox etc. only comes into the picture if you want to run it on a non-Linux box.
- norswap 13y ago
  Okay, so what about non-Linux then, e.g. Windows? (Also, apprently LXC guidance is only offered for Ubuntu & Archlinux: http://www.docker.io/gettingstarted/ http://www.docker.io/gettingstarted/) I also thought the point was to be able to deploy anywhere. Considerable performance penalty on some platform may hurt the point significantly.
  - IanChiles 13y ago
    Docker runs on linux only because it uses LXC/cgroups/AUFS, all of which are unique to Linux. FreeBSD Jails and Solaris Zones have the same core concepts that docker uses.

WayneDB 13y ago

Nitpick: Why use a whale as the logo when the tagline says that it's a "lightweight" container system?