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Docker 0.3 released: public index, data volumes and open-source registry

111 points by shad42 13y ago

shykes 13y ago
In addition to the public search index and support for data volumes, this release also includes an open-source version of the registry. So anyone can host their containers privately without depending on the central registry.
- zrail 13y ago
  How does one go about actually using a private registry? Is there a flag to push/pull?
  - shykes 13y ago
    Docker will support arbitrary URLs as argument to push/pull, in addition, eg. $ docker pull containers.mycompany.tld/postgres This still requires some tweaking, but I expect it to get polished rapidly, now that organizations can play with the registry.
    - fizx 13y ago
      Is there a github branch?
      - shykes 13y ago
        Not yet! Actually we probably need a separate github issue to track this. Want to create it? :)
        fizx 13y ago
        https://github.com/dotcloud/docker/issues/540 https://github.com/dotcloud/docker/issues/540
shykes 13y ago
I thought I'd share a few cool hacks built on top of Docker: Hipache: https://index.docker.io/u/samalba/hipache/ https://index.docker.io/u/samalba/hipache/ Heroku buildpacks on Docker: https://groups.google.com/forum/?fromgroups=#!topic/docker-club/SBn9K160bs8 https://groups.google.com/forum/?fromgroups=#!topic/docker-c... Ready-to-use OpenCV build with python bindings: https://index.docker.io/u/steeve/opencv/ https://index.docker.io/u/steeve/opencv/
willvarfar 13y ago
I recently asked for a recipe for running GUI apps e.g. browsers in dockers. Here's how: http://stackoverflow.com/questions/16296753/can-you-run-gui-apps-in-a-docker http://stackoverflow.com/questions/16296753/can-you-run-gui-... (Yeah, it got closed. Oh well, Stackoverflow colour me surprised)
- shykes 13y ago
  Oh yeah, I forgot that one - insanely cool hack by Guillaume Charmes: running firefox+vnc from any server with a single command: docker run creack/firefox-vnc
sciurus 13y ago
I'm glad Docker is getting this level of attentions. I like that they have focused on making building and managing containers easy, and that this functionality stands alone. Compare this to, e.g. Red Hat's OpenShift, which implements a similar container system but bundles it as part of a larger PaaS platform. https://www.openshift.com/wiki/architecture-overview https://www.openshift.com/wiki/architecture-overview https://www.openshift.com/wiki/introduction-to-cartridge-building https://www.openshift.com/wiki/introduction-to-cartridge-bui...
andrewflnr 13y ago
I like the new description line of "Docker is an open-source engine which automates the deployment of applications as highly portable, self-sufficient containers" better than the old one: https://news.ycombinator.com/item?id=5609995 https://news.ycombinator.com/item?id=5609995. "Improved, as promised" seems to a major theme here. :)
- shykes 13y ago
  I'm glad you noticed :) We're trying really hard to address problems and suggestions as they come up, and be quick about it.
drkrab 13y ago
What's the catch? Where can I read something about the limitations of Docker? Where will it leaking through that you're running in a shared container? I can see some things; the containers will be sharing kernel resources (FS/IO buffers, kernel config etc) but is that all?
- Game_Ender 13y ago
  I don't know the specifics but it uses standard (if new) Linux kernel tech: LXC [1], namespaces [2], cgroups [3] and AUFS [4] to create something similar to a BSD or Solaris jail. I would research issues with those systems. 1 - http://en.wikipedia.org/wiki/LXC http://en.wikipedia.org/wiki/LXC 2 - http://kernelnewbies.org/Linux_3.8#head-fc2604c967c200a26f336942caee2440a2a4099c http://kernelnewbies.org/Linux_3.8#head-fc2604c967c200a26f33... 3 - http://en.wikipedia.org/wiki/Cgroups http://en.wikipedia.org/wiki/Cgroups 4 - http://aufs.sourceforge.net/ http://aufs.sourceforge.net/
jimmcslim 13y ago
Anyone have news on the progress of the Docker plugin for Vagrant?

111 points by shad42 13y ago

In addition to the public search index and support for data volumes, this release also includes an open-source version of the registry. So anyone can host their containers privately without depending on the central registry.

zrail 13y ago
How does one go about actually using a private registry? Is there a flag to push/pull?
- shykes 13y ago
  Docker will support arbitrary URLs as argument to push/pull, in addition, eg. $ docker pull containers.mycompany.tld/postgres This still requires some tweaking, but I expect it to get polished rapidly, now that organizations can play with the registry.
  - fizx 13y ago
    Is there a github branch?
    - shykes 13y ago
      Not yet! Actually we probably need a separate github issue to track this. Want to create it? :)
      - fizx 13y ago
        https://github.com/dotcloud/docker/issues/540 https://github.com/dotcloud/docker/issues/540

shykes 13y ago

I thought I'd share a few cool hacks built on top of Docker: Hipache: https://index.docker.io/u/samalba/hipache/ https://index.docker.io/u/samalba/hipache/ Heroku buildpacks on Docker: https://groups.google.com/forum/?fromgroups=#!topic/docker-club/SBn9K160bs8 https://groups.google.com/forum/?fromgroups=#!topic/docker-c... Ready-to-use OpenCV build with python bindings: https://index.docker.io/u/steeve/opencv/ https://index.docker.io/u/steeve/opencv/

willvarfar 13y ago

I recently asked for a recipe for running GUI apps e.g. browsers in dockers. Here's how: http://stackoverflow.com/questions/16296753/can-you-run-gui-apps-in-a-docker http://stackoverflow.com/questions/16296753/can-you-run-gui-... (Yeah, it got closed. Oh well, Stackoverflow colour me surprised)

shykes 13y ago
Oh yeah, I forgot that one - insanely cool hack by Guillaume Charmes: running firefox+vnc from any server with a single command: docker run creack/firefox-vnc

sciurus 13y ago

I'm glad Docker is getting this level of attentions. I like that they have focused on making building and managing containers easy, and that this functionality stands alone. Compare this to, e.g. Red Hat's OpenShift, which implements a similar container system but bundles it as part of a larger PaaS platform. https://www.openshift.com/wiki/architecture-overview https://www.openshift.com/wiki/architecture-overview https://www.openshift.com/wiki/introduction-to-cartridge-building https://www.openshift.com/wiki/introduction-to-cartridge-bui...

andrewflnr 13y ago

I like the new description line of "Docker is an open-source engine which automates the deployment of applications as highly portable, self-sufficient containers" better than the old one: https://news.ycombinator.com/item?id=5609995 https://news.ycombinator.com/item?id=5609995. "Improved, as promised" seems to a major theme here. :)

shykes 13y ago
I'm glad you noticed :) We're trying really hard to address problems and suggestions as they come up, and be quick about it.

drkrab 13y ago

What's the catch? Where can I read something about the limitations of Docker? Where will it leaking through that you're running in a shared container? I can see some things; the containers will be sharing kernel resources (FS/IO buffers, kernel config etc) but is that all?

Game_Ender 13y ago
I don't know the specifics but it uses standard (if new) Linux kernel tech: LXC [1], namespaces [2], cgroups [3] and AUFS [4] to create something similar to a BSD or Solaris jail. I would research issues with those systems. 1 - http://en.wikipedia.org/wiki/LXC http://en.wikipedia.org/wiki/LXC 2 - http://kernelnewbies.org/Linux_3.8#head-fc2604c967c200a26f336942caee2440a2a4099c http://kernelnewbies.org/Linux_3.8#head-fc2604c967c200a26f33... 3 - http://en.wikipedia.org/wiki/Cgroups http://en.wikipedia.org/wiki/Cgroups 4 - http://aufs.sourceforge.net/ http://aufs.sourceforge.net/

jimmcslim 13y ago

Anyone have news on the progress of the Docker plugin for Vagrant?