Hi Ryan, I invite you to read my blog about Karaf and Docker:
http://blog.nanthrax.net/2014/12/apache-karaf-christmas-gifts-docker-io-profiles-and-decanter/ and the Karaf Docker proposal: http://karaf.922171.n3.nabble.com/DISCUSSION-Karaf-docker-io-td4038470.html Regards JB On 04/08/2015 02:31 PM, Ryan Moquin wrote:
Hi, I've been reading up on Docker and trying to understand what all the fuss is about (I'm still not sure for several reasons, but I digress). I was wondering how Docker might influence Karaf in the future as well as how Docker fits in with OSGi and Karaf in general. Specifically my questions are: 1. It seems like the hype of Docker is causing people to shy away from the dynamic nature of OSGi, such as being able to update bundles in a running Karaf container. Is the use of Docker and Karaf boiling down to creating a static Karaf image and anytime you want to upgrade anything, you throw away the instance and replace it with a newly built instance? It feels inefficient. It also feels like it really complicates everything. Unless you are developing on Linux, development using Docker containers is really slow. Dealing with setting up docker containers to test things out locally also seems like a lot of overhead. If you don't test locally with Docker, then can you be sure that deploying in a Docker container will work properly? 2. In regards to the first question, and the fact that people indicate they think Docker will become the standard, will Karaf be dumbed down in the future due to the static nature of Docker? Meaning, if Docker *does* becomes the de factor standard for deploying everything, it feels like developers would be discouraged from using a lot of the run-time benefits OSGi offers. I kind of feel like the big push of Docker in the development community in general (as a whole, not talking about the Karaf developer community), will potentially cause a lack of innovation and improvements in the deploying of applications. Docker could become a crutch. If an application is slowly leaking memory over a 24 hour period, why fix it? When it crashes, just replace it with a new instance. Am I wrong? This is just my initial thoughts and questions. I wanted to see what other people thought and how other people view Docker and Karaf being used or how it is being used. Ryan
-- Jean-Baptiste Onofré [email protected] http://blog.nanthrax.net Talend - http://www.talend.com
