some excellent posts clearing it all up, much appreciated :) Mike
On 18 January 2015 at 21:28, Brian Devins <[email protected]> wrote: > Not the case. I can run ubuntu containers on a micro linux install with > docker. The difference is that they all have the same kernel no matter what > distro your container is using > On Jan 18, 2015 4:09 PM, "Michael Dilworth" <[email protected]> wrote: > >> a bit of an aside, but i am under the impression that containers are not >> another OS, but the same as the underlying host. So you cant have an Ubuntu >> container on a CoreOS host.. unless you use a hypervisor.. the container is >> coreos too. >> >> mike >> >> On 18 January 2015 at 20:56, Diego Medina <[email protected]> wrote: >> >>> One other thing I'd like to point out, many people say CoreOS is great >>> because it autoupdates on its own, but you need to realize that the >>> containers that run on top of CoreOS don't run coreos, they run Ubuntu, >>> Fedora, etc, and if there is a security issue (think openssl, etc), you >>> have to rebuild all your containers again to apply the missing updates. >>> >>> Thanks >>> >>> On Sun, Jan 18, 2015 at 2:28 PM, Jason Giedymin < >>> [email protected]> wrote: >>> >>>> Coreos places focus on the OS to deploy services as containers. It’s >>>> distributed key store is meant to share config in a cluster and to aid in >>>> basic scheduling via fleet, which is like cluster wide systemd. >>>> >>>> It’s scheduler is basic (but can be made to be more complex if you were >>>> to use these base tools). On the other hand, Mesos has a more complex >>>> featureful scheduler, works as-an application, and has more first class >>>> controls over managing jobs (cgroups, etc…) >>>> >>>> There is not complete overlap between these two systems. They do not >>>> necessarily compete with each other. But they do have features which try to >>>> address distributed application design/deployment. >>>> >>>> - J >>>> >>>> On Jan 18, 2015, at 1:29 PM, Victor L <[email protected]> wrote: >>>> >>>> Hope this helps some >>>> It doesn't as it doesn't even try to answer my question. Let me re- >>>> phrase it: what does mesos on the coreos cluster do that coreos itself >>>> doesn't do already? >>>> >>>> On Sun, Jan 18, 2015 at 10:00 AM, Jason Giedymin < >>>> [email protected]> wrote: >>>> >>>>> The value of coreos that immediately comes to mind since I do much >>>>> work with these tools: >>>>> >>>>> - the small foot print, it is a minimal os, meant to run containers. >>>>> So it throws everything not needed for that out. >>>>> - containers are the launch vehicle, thus deps are in container land. >>>>> I can run and test containers with ease, not having to worry about >>>>> multiple >>>>> OSes. >>>>> - with etcd and fleet, coordinating the launch and modification of >>>>> both machines and cluster make it a breeze. Allowing you to do dynamic >>>>> mesos scaling up or down. I add nodes at will, across multiple cloud >>>>> platforms, ready to launch multitude of containers or just mesos. >>>>> - security. There is a defined write strategy. You cannot write willy >>>>> nilly to any location. >>>>> - all the above further allow auto OS updates, which is supported >>>>> today on all platforms that deploy coreos. This means more frequent >>>>> updates >>>>> since the os is minimal, which should increase the security effectiveness >>>>> when compared to big box superstore OSes like Redhat or Ubuntu. Some >>>>> platforms charge quite a bit for managed updates of this frequency and >>>>> level of testing. >>>>> >>>>> Coreos allows me to keep apps in a configured container that I trust, >>>>> tested, and works time and time again. >>>>> >>>>> I see coreos as a compliment. >>>>> >>>>> As a fyi I'm available for questions, debugging, and client work in >>>>> this area. >>>>> >>>>> Hope this helps some, from real world usage. >>>>> >>>>> Sent from my iPad >>>>> >>>>> > On Jan 18, 2015, at 9:16 AM, Victor L <[email protected]> wrote: >>>>> > >>>>> > I am confused: what's the value of mesos on the top of coreos >>>>> cluster? Mesos provides distributed resource management, fault tolerance, >>>>> etc., but doesn't coreos provides the same things already? >>>>> > Thanks >>>>> >>>> >>>> >>>> >>> >>> >>> -- >>> Diego Medina >>> Lift/Scala consultant >>> [email protected] >>> http://fmpwizard.telegr.am >>> >> >>
