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Date: Wed, 10 Jun 2015 23:47:43 +0000
To: "Polytropon" <freebsd@edvax.de>, "Jason Cox" <cscoman@gmail.com>
Cc: "FreeBSD Mailing List" <freebsd-questions@freebsd.org>
Subject: Re: FreeBSD and Docker
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Hello everyone!

Thanks a lot for your input.

Any chance I could use something like overlayfs / zfs like the author claims?

https://meta.discourse.org/t/is-there-any-way-to-install-discourse-without-docker/16977

Do sign up and give your feedback. There used to be a FreeBSD thread @ meta.discourse.org but it just got deleted.

Many thanks!

O.D.

On 10. juni 2015 at 2:52 PM, "Polytropon" <freebsd@edvax.de> wrote:
>
>On Wed, 10 Jun 2015 07:29:09 -0700, Jason Cox wrote:
>> What are you doing wrong? You are trying to run docker on 
>FreeBSD. Docker
>> is a containerization technology built for Linux. It uses LXC 
>(which is
>> Linux Containers) for older Kernels or docker specific bits 
>which are now
>> part of the modern Linux kernel 3.10+.
>
>It requires too many Linuxisms which aren't part of FreeBSD's
>Linux ABI, so expecting Docker to work on FreeBSD is somehow
>wrong.
>
>
>
>> Docker is basically FreeBSD Jails,
>> with a few more features and a lot more security issues.
>
>It's surely possible to run a "jail equivalent" of the Docker
>application package in question (here: Discourse).
>
>
>
>> I have not looked into Discourse, but any application that 
>requires Docker
>> is not worth using at this point.
>
>Discourse is not exactly _requiring_ Docker - there has been
>a prepackaged Docker "instance" of all the components you need
>to run Discourse, not more, not less. It should be possible to
>run Discourse the "traditional" way - using native FreeBSD
>technology.
>
>
>
>> If
>> you just cannot get Discourse working on FreeBSD, then by all 
>means switch
>> to a Linux install instead. Make sure it is not centos as it 
>will not have
>> the update Kernel drivers for better Docker support.
>
>That is the final advice. :-)
>
>Docker is for Linux, Jails is for FreeBSD. It's somewhat comparable
>to a "pre-packaged VM image", more or less (probably less).
>
>Oh, and doing things like
>
>	# wget http://getsomething.example.com | sudo bash
>
>is definitely _not_ the way you want to install software on 
>FreeBSD.
>It rather seems to be a new Linuxism that has emerged during the
>recent years. :-)
>
>
>
>-- 
>Polytropon
>Magdeburg, Germany
>Happy FreeBSD user since 4.0
>Andra moi ennepe, Mousa, ...