Re: [PROPOSAL] Docker feature in Karaf container

[Jean-Baptiste Onofré <jb...@nanthrax.net>]

Hi guys,

quick update about this. I removed the blueprint dependency to use the same
approach as other Karaf modules (BaseActivator). I also started to use the JAXRS
spec instead of CXFRS backend.
I started an local integration branch this morning. I should create a PR
including utests/itests, features and so on tomorrow.

Thanks !
Regards
JB

On 01/18/2018 10:37 AM, Jean-Baptiste Onofré wrote:
> Hi,
> 
> Some days ago, we discussed about Decanter 2.0.0 and using "external" instances
> of used engines,  like Elasticsearch or Kibana.
> 
> Basically, the main reason is that some engines are not easy to embed in Karaf.
> It's the case of Kibana as it uses node.js.
> 
> However, one of the big advantage of embedded instance of Elasticsearch or
> Kibana is that it's very easy to install and use: it's just a feature:install
> command to perform.
> 
> So, I would like to provide both advantages: easy to install and use with
> external instances ;)
> 
> A first approach would be to create a "exec" bundle starting the instance. But
> we gonna face the "classic" issues depending of the environment.
> 
> Maybe some of you remember the karaf-docker PoC I did month ago:
> 
> https://github.com/jbonofre/karaf-docker
> 
> This is a simple feature that allows you to manipulate docker images:
> bootstrapping, starting/running, ...
> 
> I think it would help a lot in Decanter or Cellar: we can just provide Karaf
> Docker commands to bootstrap Elasticsearch, Kibana, OrientDB, ...
> As a best effort, we will try to provide embedded instance as possible, but it
> won't be the preferred approach.
> 
> As karaf-docker is small project and just basically use docker, I think it
> doesn't require to be a Karaf subproject.
> As we have the karaf scheduler (using Quartz internally), I would like to
> propose to add docker in Karaf container in a dedicated module.
> 
> It means that users will be able to do feature:install docker to have the docker
> commands.
> I would like also to add a command and configuration to have "ready to go
> images". Something that will allow users to do:
> 
> docker:run elasticsearch
> 
> then, elasticsearch will use a ready to go dockerfile.
> 
> It would be possible to do:
> 
> docker:run mvn:org.apache.karaf.decanter.docker/elasticsearch/6.1.0/docker
> 
> Where we can host ready to use "official" dockerfile.
> 
> Thoughts ?
> 
> Regards
> JB

-- 
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com