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Deploy Java Apps With Docker

128 points by durdn 13y ago

deleted 13y ago
[deleted]
AlexanderDhoore 13y ago
I played with Docker a bit yesterday. Containers really are awesome! VMs look almost stupid in comparison. I'll be using it as much as I can. Being written in Golang doesn't hurt either... Golang seems like a very good choice for this.
- pjmlp 13y ago
  It is called Go!
  - username111 13y ago
    Not if you want to search for it.
    - pjmlp 13y ago
      The search expression "go programming language" gets http://golang.org/‎ http://golang.org/‎ as first hit. How hard is that?
      - username111 13y ago
        If you really want to know it isn't for finding the main site that everyone uses golang it is for finding all other references to the language. As an example cloudflare writes a large amount of posts that have something to do with go if you google "go cloudflare" you get relevant results but you also get results of google mixing in the word "get" for go which are completely irrelevent. Now if you google "golang cloudflare" all results pertain to the Go programming language. (Not the best example because cloudflare doesn't use golang in their posts).
        pjmlp 13y ago
        Easy, "go programming language" cloudflare
  - mpyne 13y ago
    I still think this is karmic justice for Google usurping the name of the existing programming language called Go! :) http://en.wikipedia.org/wiki/Go!_(programming_language) http://en.wikipedia.org/wiki/Go!_(programming_language)
gales 13y ago
This is exactly what I've been looking for, a clear walk-through of Docker.
- KenCochrane 13y ago
  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 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.
  - wahnfrieden 13y ago
    I would love to see more conceptual materials, explaining the ideas behind it, why I should use it, use cases, comparisons to alternatives - that kind of reading. It seems promising but a little hazy from a high level.
    - shykes 13y ago
      You're right. The Docker community has grown from a core of people who are naturally excited about containers, and typically have been tinkering with them for years. So most of the early material is biased towards the "how" rather than the "why". Now that the community has grown in amazing ways, we're working on changing that. I gave a talk last week at the dotScale conference [1] about the high-level motivation behind Docker. The video should be available soon. I'm also working on a series of articles on the design principles behind it - separation of concerns, static vs dynamic dependencies, why developers never use system packages, "real computers all the way down", thinking of the internet as one giant unix computer... Basically 5 years worth of obsessing over this particular subject :) [1] http://dotscale.eu http://dotscale.eu
      - wahnfrieden 13y ago
        Sounds great! What can I follow to find these once you write them?
killing_time 13y ago
It's probably also worth mentioning dokku, which is a simplified private PaaS built on top of Docker. It adds Heroku buildpacks (Ruby, NodeJS and Java right now) into the mix, and a git push-to-deploy model. Because dokku has a concise and readable codebase, browsing the source is a good way to see one practical application of Docker, too. I've set it up as a sandbox environment for developers at my company, and for our purposes it's a much better fit than some of the more heavyweight private PaaS products. I'm really enjoying working with it!
- killing_time 13y ago
  Link: https://github.com/progrium/dokku https://github.com/progrium/dokku
alinspired 13y ago
get familiar with openvz - linux containers that allow to configure network interfaces, dynamic resources allocation, etc Example from http://openvz.org/Basic_operations_in_OpenVZ_environment http://openvz.org/Basic_operations_in_OpenVZ_environment: [host-node]# vzctl create 101 --ostemplate fedora-core-18-minimal [host-node]# vzctl set 101 --ipadd 10.1.2.3 --save [host-node]# vzctl set 101 --nameserver 10.0.2.1 --save [host-node]# vzctl start 101
- shykes 13y ago
  OpenVZ is basically identical to lxc, which is one of the underlying components of Docker. Docker could be ported from lxc to openvz (and probably will be in the future as a plugin, as it has been requested). That is to say, Docker is not a replacement for OpenVZ, or any other low-level container capability. It's simply a higher-level tool which is built on top.
  - alinspired 13y ago
    Yes, LXC and OpenVZ in it's core similar technologies that enable linux containers. OpenVZ also comes with varios containers management tools, some of which are available via docker for LXC containers too.
    - shykes 13y ago
      We are very familiar with openvz, as dotcloud was based on it before switching to lxc :) See https://news.ycombinator.com/item?id=5817455 https://news.ycombinator.com/item?id=5817455

128 points by durdn 13y ago

deleted 13y ago

[deleted]

I played with Docker a bit yesterday. Containers really are awesome! VMs look almost stupid in comparison. I'll be using it as much as I can. Being written in Golang doesn't hurt either... Golang seems like a very good choice for this.

pjmlp 13y ago
It is called Go!
- username111 13y ago
  Not if you want to search for it.
  - pjmlp 13y ago
    The search expression "go programming language" gets http://golang.org/‎ http://golang.org/‎ as first hit. How hard is that?
    - username111 13y ago
      If you really want to know it isn't for finding the main site that everyone uses golang it is for finding all other references to the language. As an example cloudflare writes a large amount of posts that have something to do with go if you google "go cloudflare" you get relevant results but you also get results of google mixing in the word "get" for go which are completely irrelevent. Now if you google "golang cloudflare" all results pertain to the Go programming language. (Not the best example because cloudflare doesn't use golang in their posts).
      - pjmlp 13y ago
        Easy, "go programming language" cloudflare
- mpyne 13y ago
  I still think this is karmic justice for Google usurping the name of the existing programming language called Go! :) http://en.wikipedia.org/wiki/Go!_(programming_language) http://en.wikipedia.org/wiki/Go!_(programming_language)

gales 13y ago

This is exactly what I've been looking for, a clear walk-through of Docker.

KenCochrane 13y ago
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 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.
- wahnfrieden 13y ago
  I would love to see more conceptual materials, explaining the ideas behind it, why I should use it, use cases, comparisons to alternatives - that kind of reading. It seems promising but a little hazy from a high level.
  - shykes 13y ago
    You're right. The Docker community has grown from a core of people who are naturally excited about containers, and typically have been tinkering with them for years. So most of the early material is biased towards the "how" rather than the "why". Now that the community has grown in amazing ways, we're working on changing that. I gave a talk last week at the dotScale conference [1] about the high-level motivation behind Docker. The video should be available soon. I'm also working on a series of articles on the design principles behind it - separation of concerns, static vs dynamic dependencies, why developers never use system packages, "real computers all the way down", thinking of the internet as one giant unix computer... Basically 5 years worth of obsessing over this particular subject :) [1] http://dotscale.eu http://dotscale.eu
    - wahnfrieden 13y ago
      Sounds great! What can I follow to find these once you write them?

killing_time 13y ago

It's probably also worth mentioning dokku, which is a simplified private PaaS built on top of Docker. It adds Heroku buildpacks (Ruby, NodeJS and Java right now) into the mix, and a git push-to-deploy model. Because dokku has a concise and readable codebase, browsing the source is a good way to see one practical application of Docker, too. I've set it up as a sandbox environment for developers at my company, and for our purposes it's a much better fit than some of the more heavyweight private PaaS products. I'm really enjoying working with it!

killing_time 13y ago
Link: https://github.com/progrium/dokku https://github.com/progrium/dokku

alinspired 13y ago

get familiar with openvz - linux containers that allow to configure network interfaces, dynamic resources allocation, etc Example from http://openvz.org/Basic_operations_in_OpenVZ_environment http://openvz.org/Basic_operations_in_OpenVZ_environment: [host-node]# vzctl create 101 --ostemplate fedora-core-18-minimal [host-node]# vzctl set 101 --ipadd 10.1.2.3 --save [host-node]# vzctl set 101 --nameserver 10.0.2.1 --save [host-node]# vzctl start 101

shykes 13y ago
OpenVZ is basically identical to lxc, which is one of the underlying components of Docker. Docker could be ported from lxc to openvz (and probably will be in the future as a plugin, as it has been requested). That is to say, Docker is not a replacement for OpenVZ, or any other low-level container capability. It's simply a higher-level tool which is built on top.
- alinspired 13y ago
  Yes, LXC and OpenVZ in it's core similar technologies that enable linux containers. OpenVZ also comes with varios containers management tools, some of which are available via docker for LXC containers too.
  - shykes 13y ago
    We are very familiar with openvz, as dotcloud was based on it before switching to lxc :) See https://news.ycombinator.com/item?id=5817455 https://news.ycombinator.com/item?id=5817455